Archive for category Ground

World class geophysics for Republic of Kazakhstan

Posted by on Sunday, 6 April, 2014
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April 3, 2014, Astana. Vice Minister of Industry and New Technologies of the Republic of Kazakhstan Nurlan Sauranbayev and Chairman of the Board of JSC “Kazgeologiya” Galim Nurzhanov met with the Ambassador of Canada Stephan Millar and leading world class Canadian geophysical companies Phoenix Geophysics and Geotech Ltd.

“I want to thank you for the meeting. I see great potential for fruitful cooperation in the field of exploration, “- said Stephen Millar. Vice Minister of Industry and New Technologies Nurlan Suranbaev suggested for further cooperation JSC “Kazgeologiya”, which held preliminary talks with the companies.

 

 

 

 

 

 


Geophysics indicates conductive core at Mary March in Central Newfoundland

Posted by on Wednesday, 26 March, 2014

Canstar Resources  provides an update on the current exploration activity for its Mary March Project, located near Buchan’s Junction in Central Newfoundland.
The Company’s recent borehole geophysical program conducted on holes drilled during 2013 has provided results that distinguish a high priority drill target near the Mary March massive sulphide zone. All of the holes surveyed clearly point to a more conductive zone downdip and to the east of holes MM13-29 and MM13-30, suggesting the mineralization is open for expansion in these directions.

 

 

 

 

 

 

 

 

 

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The Mary March zone is the initial discovery area drilled by Phelps Dodge in 1999 where they encountered impressive grades of 10.1% Zn, 1.68% Pb, 0.64% Cu, 122.1 grams per tonne (g/t) Ag, and 4.2 g/t Au over 9.63 meters. The drilling completed by the Company in the Mary March area successfully added to these results, encountering massive sulphide zones with two separate holes. In drillhole MM13-30, 11.6 meters of mineralization containing 3.6% Zn, 0.1% Cu, 0.8% Pb, 25 g/t Ag, and 1.5 g/t Au; including a 3.6-meter high-grade zone containing 7.5% Zn, 0.04% Cu, 1.37% Pb, 26.1 g/t Ag, and 1.7 g/t Au, and extended the Mary March Zone to depth. In MM13-29, 5.0 meters of mineralization was encountered, containing 4.82% Zn, 0.38% Cu, 1.04% Pb, 71.3 g/t Ag, and 1.8 g/t Au, including 3.5 meters of 6.21% Zn, 0.13% Cu, 1.42% Pb, 82.8 g/t Ag, and 1.9 g/t Au (see Company Press Release dated January 21, 2014).
Results for surveys completed for holes in the Nancy April area, which is located approximately 500 meters southwest of the Mary March zone require more data and investigation, remaining relatively underexplored compared to the Mary March zone.

“This is exciting news for our shareholders and for the Mary March project,” stated Danniel Oosterman, President and CEO of Canstar. “In an area where mineralization is known to give weak responses, we are encouraged to find such an obvious anomaly offhole to known mineralization. Needless to say the company regards this as a high priority target for its next drilling program.”


Strong EM Targets Have Been Detected Downhole Geophysics at Yepleu and Samapleu Deposit

Posted by on Monday, 24 March, 2014

Sama Completes Downhole Geophysics on Five Drill Holes at Yepleu and Samapleu Deposit (West Africa); Strong EM Targets Have Been Generated

Sama Resources Inc./Ressources Sama Inc. announces the completion of the Downhole Electromagnetic Geophysical (“DHEM”) survey on five (5) holes at the Samapleu and newly discovered Yepleu nickel-copper-palladium Deposits in Côte d’Ivoire, West Africa.

Abitibi Geophysics Inc. from Val d’Or in Canada performed the survey and the interpretation is performed by Mr. Daniel Card, Senior Geophysicist for Southern Geoscience Consultants, Australia.

Three holes were surveyed at the Yepleu deposit, one hole at the Samapleu Main and one hole at the Samapleu Extension 1 deposits.

Preliminary inspection of the data indicate strong Electromagnetic (“EM”) responses on all holes surveyed. Detailed interpretation and modelling is in progress for the following geophysical anomalies:

 
Hole         Location       Response: Depth from surface in meters ("m") 
SM34-570407  Extension 1    - EM anomaly at around 280-320 m 
SM44-525290  Samapleu Main  - EM anomaly at around 150 m 
YE31-637117  Yepleu         - EM anomaly at around 120 m 
YE31-694543  Yepleu         - EM anomaly at around 160 m 
YE23-398223  Yepleu         - EM anomaly at around 40 m

“The survey was performed extremely well by Abitibi Geophysics,” stated Dr. Marc-Antoine Audet, President and CEO. “We look forward to some very good drilling targets from the modelling.” “We are working on this as top priority,” added Mr. Card, Senior Geophysicist for Southern Geoscience Consultants.

The Yepleu discovery is located 18 kilometers (“km”) southwest of the Samapleu nickel-copper-palladium deposits. Regional geological mapping has identified that the geological host of the newly discovered Yepleu nickel-copper-palladium mineralization extends beyond the original 3 km by 600 to 800m to an area as vast as 6 km x 4 km (Refer to News Release dated February 03, 2014).

A total of 18 diamond drilling holes for 3,320m were drilled at the Yepleu discovery testing the large sub-horizontal mineralized layer associated with pyroxenite, gabbro-norite and diorite units been part of the newly identified and described Yacouba Layered Complex (Gouedji et al., submitted to Bulletin de la Société Géologique de France (BSGF), January 24, 2014). Exploration results for all drilled holes at Yepleu will be announced in a subsequent press release.

Exploration Model and Targets

Exploration to date has focused mostly on shallow targets (<150m) at the Samapleu and Yepleu deposits. Sama believes that mineralization at the Samapleu deposits could plunge deeper and could extend laterally as suggested by responses obtained from the Helicopter Electromagnetic survey completed in January 2013 and by the current DHEM survey.

At Yepleu, the Company is chasing embayments or structural features that would have trapped mineralised pyroxenite within the sub-horizontal layered complex assemblage.

The technical information in this release has been reviewed and approved by Dr. Marc-Antoine Audet, P.Geo and President and CEO of Sama, and a ‘qualified person’, as defined by National Instrument 43-101, Standards of Disclosure for Mineral Projects.

For more details, the reader is invited to review Sama’s updated compilation on its website at: http://www.samaresources.com/i/pdf/Sama_Corporate_Presentation.pdf

 

amapleu Project

“Samapleu poly-metallic deposits will give Sama the opportunity to become the first poly-metallic producer in West Africa.”

The Samapleu deposit is comprised of disseminated and semi-massive to massive sulphide mineralization hosted by a mafic-ultramafic intrusion located in the southern border of an early Proterozoic age deformation zone affecting the Archean Charnockitic shield. Mineralization is strata bound within pyroxenite layers of the Samapleu mafic-ultramafic complex.

The disseminated mineralization is typically characterized by fine isolated grains to large granular aggregates of iron, nickel and copper sulphides. Sulphide phases observed so far include pyrrhotite, chalcopyrite, pentlandite and minor pyrite. Pentlandite occurs as inclusions in pyrrhotite. Disseminated sulphide occurs as fine grains of 0.5 to 1 mm in diameter, showing a high ratio of pyrrhotite versus chalcopyrite. Sulphide veinlets and fine filaments are also present. Composite grains of sulphide material are dominant, forming sulphide masses of odd shapes ranging from a few millimeters up to several centimeters in any one dimension.


Exploration on Éléonore Gold project, Québec

Posted by on Friday, 14 March, 2014

Midland Exploration Inc.  reports the beginning of its exploration activity on its 100% owned James Bay Éléonore Gold project located in James Bay, Québec. The first phase of the 2014 exploration program consists of a helicopter airborne magnetic geophysical survey over the Éléonore Centre property.

The Eléonore project, which encompasses the Éléonore Centre and West properties, is constituted of a total of 247 claims covering 128 square kilometres, and is located approximately 30 kilometres southwest from and in a geological environment similar to Goldcorp Inc.’s Éléonore deposit. This world-class gold deposit contains reserves of 4.03 Moz Au (proven and probable categories), combined measured and indicated resources of 4.84 Moz Au and inferred resources estimated at 4.10 Moz Au. (Source: Goldcorp press release dated February 13, 2014).

Prospecting conducted by Midland from 2009 to 2013 on the Éléonore Centre property identified the presence of several gold showings associated with quartz-tourmaline pyrite bearing veinlets occurring in sheared metasediments, as well as mafic and felsic metavolcanics which returned up to 18.8 g/t Au. These results strongly suggest that an auriferous hydrothermal system is present on the property by a strong abundance of quartz-tourmaline veins over a plurimetric area. In addition, the 2013 ground induced polarisation (“IP”) survey identified many north-south trending IP anomalies and several remain unexplained. The 2011 soil geochemistry survey permitted to delineate a series of As-Cu-Sb anomalies clustered along a north-south-trending axis. Finally, a series of parallel northeast trending AeroTEM II conductors were outlined by the 2010 airborne geophysical survey which targeted sulfide bearing Éléonore-type sediments on the northern part of the Éléonore Centre property. Some of these conductors coincide with uncovered gold-bearing disseminated to semi-massive sulfides zones identified by Midland and several EM anomalies still remain unexplained.

A high definition airborne magnetic survey covering the Éléonore Centre property was just completed, including the area covered by the 2013 IP survey. The results and interpretation of this survey, totalizing 386 linear kilometres, are pending. Furthermore, preparation for the upcoming 2014 summer exploration program on the Éléonore Centre property currently underway.

Location:

  • The Eleonore property is located about 450 kilometres north of the town of Matagami, in the Opinaca Reservoir area, James Bay, Quebec.

Property:

  • The Eleonore property consists of two claim blocks (Centre and West). The Centre Block consists of 121 claims covering a surface area of about 63 square kilometres, whereas the West Block consists of 109 claims covering about 57 square kilometres. The two blocks are located about 30 kilometres southwest of the Roberto deposit on the Eleonore property held by Goldcorp, where measured and indicated resources are estimated at 3.15 million ounces of gold and inferred resources at 6.25 million ounces of gold.

Highlights:

  • Covers a major N-S-trending structure between metasedimentary rocks and metavolcanic rocks interpreted as the extension of the structure occurring near the Eleonore gold deposit.
  • Prospecting work has uncovered many new gold showings associated with metasedimentary rocks (conglomerates and greywackes):
    • Golden Gun showing: 18.8 g/t Au, 13.6 g/t Au, 0.76 g/t Au
    • Golden Gun West showing : 1.69 g/t Au
    • Aston Martin showing : 1.63 g/t Au
    • Gold Finger showing: 1.01 g/t Au, 0.82 g/t Au
    • Golden Eye showing: 1.90 g/t Au, 0.90 g/t Au
    • Casino showing: 0.76 g/t Au, 0.64 g/t Au
  • Located along a regional metamorphic gradient, typical of the contact between the La Grande and Opinaca groups.
  • New soil (humus) geochemistry anomalies identified in the south part of the Eleonore Centre Block.

Coincident Geochemical and Geophysical Data Pinpoints Drill Targets, Greyhound, Nunavut

Posted by on Saturday, 1 March, 2014

Aura Silver Resources Inc. announces the results of a comprehensive report completed by L.E Reed Geophysical Consultant Inc. (“Reed”) which supports, from a geophysical standpoint, drill targets established geochemically by Activation Laboratories Ltd. (Actlabs) Spatiotemporal Geochemical Hydrocarbon (“SGH”) technology for the Aura Lake area as well as the Dingo prospect north-west of Aura Lake, both part of the Greyhound Project, NU.

As reported by Reed, “Correlations between the geochemistry and various geophysical data suggest support for the possible identification of gold and silver deposits at Aura Lake and a gold and copper deposit at Dingo”. This report may be accessed at the Company’s web-site (http://www.aurasilver.com/s/Home.asp) under the section Projects / Canada.

The potential sources of high-grade gold boulders (up to 28 g/t) and high-grade silver (up to 5,300 g/t) have been identified in close proximity to Aura Lake. The gold and copper targets at the Dingo prospect area north-west of Aura Lake are surface showings. New interpretation of geophysical data and SGH has refined the drill targets. This geophysical analysis has identified multiple structures/contacts with the use of three-dimensional inversion imagery of airborne VTEM EM and magnetic responses and ground Induced Polarization and Resistivity data. These structures/contacts at Aura Lake may have provided a pathway for fluids carrying mineralization and are interpreted to support the drill targets originally defined by geochemical analysis.

Robert Boaz CEO and President of Aura Silver states that, “The detailed geophysics analysis undertaken by Reed gives us further comfort that we are zeroing in on the source of high-grade surface gold, silver and copper mineralization. Despite the difficult market for all junior exploration companies we continue to enhance the value of our properties.”

During the fall of 2006, an airborne MEGATEM® geophysical survey was flown on the initial property by Fugro Airborne Surveys Corp. In 2007, further prospecting of MEGATEM anomalies took place. Samples collected in 2007 contained up to 2.4% zinc (Zn), 1.02% copper (Cu), 8.1% lead (Pb), 10g/t gold (Au) and 51 g/t silver (Ag) highlighting the potential for discovery of VMS (volcanogenic massive sulphide) ores.

During 2008, Fugro completed the flying of a GEOTEM® survey over the new Greyhound claim group. Results from this survey were utilized in an on-the-ground field program to complete geological mapping and sampling. Samples prospected during 2008 contained up to 4.1% Cu, 13.4% Zn, 8% Pb, 2,700 g/t Ag and 28g/t Au and to the northeast of Aura Lake a series of boulders contained up to 18.5% Zn and 9.2% Cu.

In late 2009, a high precision VTEM® helicopter borne electro-magnetic survey was completed.


Seismic Exploration for Minerals

Posted by on Thursday, 20 February, 2014


Gravity survey for uranium in Athabasca

Posted by on Thursday, 20 February, 2014

Athabasca Nuclear Corporation  announces the completion of gravity surveys which have resulted in the identification of twenty-three (23) gravity low anomalies on the Western Athabasca Syndicate’s (the “Syndicate”) flagship Preston Lake Uranium Property (the “Property”). The identification process covers a portion of its’ Property and included a RadonEx survey (ground and water) to further refine targets in advance of a drill program scheduled to commence in March.

“As the largest tenure holder in the Western Athabasca Basin and having carried out the most significant regional target delineation program in the area, we are keen to commence further exploration through drilling on some of the gravity low anomalies identified to-date,” stated Ryan Kalt, Chief Executive Officer (Interim) of the Corporation.

Preston Lake Property Map and Regional Exploration Corridors:

http://www.athabascanuclear.com/wp-content/uploads/2014/02/Patterson_Lake_Regional_Map.pdf

Interpretation of the gravity data by Phil Robertshaw, P.Geo., has successfully delineated gravity low anomalies associated with previously identified high-potential exploration corridors defined by structure, magnetic lows, conductors, favorable geology and geochemistry. Gravity is a defining tool for exploration for uranium in the Athabasca Basin and was a key mechanism for vectoring in on the recent discovery made by NexGen at the Rook 1 Project.

 

Hydrothermal fluids associated with high grade uranium deposits will cause extensive alteration of the host rock, resulting in displacement and removal of minerals/elements, creating porosity and subsequent density contrast. This density contrast will be expressed as a gravity low anomaly and is a prime drill target when qualified by other coincident indicators of uranium mineralization such as geochemistry and radon.

Preston Lake Property - Gravity Survey Coverage:

http://www.athabascanuclear.com/wp-content/uploads/2014/02/Preston_Lake_Exploration_Update.jpg

In addition, several of the Syndicate’s gravity low targets have been further refined using a proprietary RadonEx survey which has been instrumental in assisting with numerous discoveries in the Athabasca Basin region. The Syndicate is carrying out a ground EM survey to further refine conductor trends and pinpoint drill pad locations. Details concerning the upcoming drill program shall be provided in the near-future.

The 246,643 hectare Preston Property is the largest individual property proximal to Fission Uranium Corp.’s Patterson Lake South (“PLS”) high-grade uranium discovery and the recent discovery made by NexGen Energy (“NexGen”) on the Rook 1 Project . The Syndicate is the largest land tenure holder in the southwest Athabasca Basin region including properties strategically situated to the southwest and to the northeast of the PLS and NexGen discoveries.

About the Preston Lake Property:

The 246,643 hectare Preston Lake Property is the largest land package proximal to the Patterson Lake South (PLS) high-grade uranium discovery, owned by Fission Uranium Corp. The Syndicate continues to employ a systematic, proven exploration methodology that has led to numerous uranium discoveries in the region and throughout the Athabasca Basin. This has been very effective in identifying numerous high-quality targets with similar geological features and exploratory indicators also present at the nearby PLS discovery and in other deposits in the Athabasca Basin. Management cautions, mineralization present on proximal properties is not necessarily indicative of mineralization on the Syndicate’s Property.


IP survey at a project in the Dominican Republic

Posted by on Tuesday, 18 February, 2014

Precipitate Gold Corp.  announces it has initiated a ground Induced Polarization (“IP”) geophysical survey at the Company’s 100% owned Juan de Herrera project in the Dominican Republic.

Insight Geophysics Inc. (“Insight”) has been contracted to conduct the survey and crews have commenced grid line cutting and ground preparations in advance of the project’s maiden geophysical survey. Crews will establish a control grid over the project’s Ginger Ridge Zone, where the Company’s previous surface work outlined a gold-rich geochemical anomaly measuring 1,000 metres by 400 metres and yielded highlight rock grab sample values up to 11.8 grams per tonne (“g/t”) gold and 100 g/t silver, as well as a 13.0 metre continuous channel sample that returned 1.5 g/t gold and 20 g/t silver, open in both directions.

Precipitate’s President & CEO, Jeffrey Wilson stated “We’re excited to commence this program, as induced polarization geophysical surveying has proven to be an effective exploration technique at other projects within the Tireo volcanic belt. It was an important targeting tool at other notable recent discoveries within the Tireo belt, particularly those of GoldQuest Mining and Unigold Inc. We’re pleased to be working with Insight on this important next phase of exploration work at our Juan de Herrera concession, as its local experience and expertise offers Precipitate an advantage in data compilation aimed at identifying anomalies and delineating possible drill targets.”

Insight’s IP survey will measure the relative chargeability and resistivity of underlying rock and highlight areas that may contain higher sulphide and/or resistive silica concentrations. Previous work in the Tireo belt, by Insight and others confirmed a correlation between high chargeability and sulphide mineralization at the Romero and Candelones discoveries. The attached map shows the approximate outline of the proposed grid to be emplaced in relation to existing soil geochemical anomalies and grab/channel sample results at Ginger Ridge. IP surveying will start near the centre of the grid and can be expanded based on interpretation of results as they are generated. The survey is expected to provide a greater understanding of the subsurface mineralization and geometry and assist in prioritizing targets for follow up trenching and/or a first-phase drill program.


Multiple conductive anomalies within the Patterson Uranium Prospect

Posted by on Friday, 14 February, 2014

Makena Resources Inc. reports that the initial data (VTEM survey) has returned results that show multiple conductive anomalies within the Patterson Uranium Prospect. Two distinctive anomalous zones were encountered. The southern zone has three specific targets within the zone. The north target is a NW trending zone associated with a break in the formation in the direct vicinity of the conductive anomaly. A historical drill hole shows basement to be relatively shallow at 154 metres depth within these zones.

Karl Schimann stated, “We are encouraged by the preliminary data. We clearly have multiple conductive targets that we plan to aggressively follow up on shortly. Of particular note is the relationship of the conductive zones associated with the breaks in the magnetic pattern. These breaks are often associated with uranium mineralization. We look forward to potentially confirming these anomalies by ground EM and follow by drilling to determine if these targets have associated uranium mineralization.”

MKN’s Patterson Uranium Prospect, consists of three claim blocks totaling 6,687 hectares (16,524 acres), which are all located in the Athabasca Basin. The west block directly borders the recent discovery on the Patterson Lake South Property by Alpha Minerals Inc. and Fission Energy Corp. The other two blocks are in the direct vicinity of the discovery.


Geophysical Program at Mary March in Newfoundland

Posted by on Monday, 10 February, 2014

Canstar Resources (Canstar)  announces the commencement of a borehole electromagnetic survey (“BHEM”) at its Joint Ventured Mary March Project, located near Buchans Junction, Newfoundland. The survey will test for the continuation of the massive sulphide mineralization and thick stockwork mineralized zone encountered in its fall 2013 drilling program (see Company’s press release dated January 21(st) , 2014).

Danniel Oosterman, President and CEO, remarks “With the completion of a successful drilling program that intercepted different styles and widths of mineralization, there is now a strong indication from the geology that we are proximal to the volcanic centre where one would expect these types of deposits to form. An off-hole anomaly from this survey would support this hypothesis and generate excellent targets for future drilling programs.”

The drillholes that will be surveyed cover the two primary areas of the project, Nancy April and Mary March, which have returned significant mineralization and strong indications of a sizeable, long-lived, hydrothermal system. The fall 2013 drilling program successfully proved that both the Mary March mineralization and the Nancy April mineralization extend at least in one direction, with a possibility for further extension in a number of directions.

The design of the survey, which involves loop-wire configurations through which an electric current is charged, has been tailored to suit massive sulphide and stockwork mineralization of this type. Geophysical anomalies in these areas would represent very high priority targets for future exploration on the property.

Discovery holes drilled by Phelps Dodge in 1999 and 2000 produced some of the highest grade base and precious metal intersections ever achieved in the area outside the Buchans mine. The Buchans mine produced 16.2 million tonnes averaging 14.50 per cent Zn, 7.56 per cent Pb, 1.33 per cent Cu, 126 grams per tonne (g/t) Ag and 1.37 g/t Au over its 56-year mine life. By comparison, the discovery holes drilled at Mary March by Phelps ran 10.33% Zn, 118.1g/t Ag, 1.62% Pb, 4.1 g/t Au, 0.66% Cu over 9.23 m; 16.8% Zn, 660 g/t Ag, 12.2 g/t Au, 5.44% Pb, 0.18% Cu over 0.91m; and 3.02% Zn, 1.08% Pb, 72.4 g/t Ag, 0.13% Cu, over 20.6m.

The drill program completed in January 2013 yielded sulphide mineralization containing significant values in copper, lead, zinc, gold, and silver was encountered in 4 of the 8 holes completed. Values were generally lower and over lesser core lengths than in the original drill program conducted over ten years ago


IP data analysis at copper-gold project in Mongolia

Posted by on Monday, 10 February, 2014

Kincora Copper Limited  provides an overview on an internal interpretations of last years exploration programme at Kincora’s flagship Bronze Fox license (Oyu Tolgoi South Gobi porphyry copper belt in southeast Mongolia) having integrated them with previous geology and geophysical results. This follows the recent receipt of positive findings from three independent consultants, further reinforcing an independent groups’ technical review late 2012, advancing and refining multiple bulk tonnage copper porphyry targets.

Some of the Key findings include:

  • Previous results coincident with lower priority Induced Polarization (IP) chargeability anomalies supporting IP being an effective exploration tool
  • Multiple large-scale copper porphyry targets with favourable geology and geophysics drill ready supporting the possibility of bulk tonnage ore mineralization in “finger type” porphyries similar to Oyu Tolgoi or Northparkes in New South Wales
  • Happy Geo prospect has emerged as an attractive, earlier stage, at or near surface follow up exploration target, plus the potential for porphyry targets at depth

 

 

 

 

 

 

 

 

Commenting on today’s announcement, Sam Spring, President and CEO of Kincora, said:

“Internally we are very pleased because drilling in late 2012 was extremely encouraging with localized higher grade, for example over 4% copper in our last hole, and broad lower grade intersections, including at least 800m @ +0.40% CuEq, with 37m @ +1% CuEq, in an earlier hole. Our 2013 field season deployed some of the same wide ranging and detailed exploration techniques used at Oyu Tolgoi to significantly increase the confidence in high priority, and large scale targets that demonstrated exceptional corresponding prospectivity. Last years’ activities, independent consultants analysis and discussions with various industry groups have assisted to “explain” previous results, convincingly prove a fertility signature for copper porphyries and in de-risking multiple drill ready targets.

Considering the size of the anomalies and advance stage of target areas, two key attractions and relatively unique characteristics of Bronze Fox, successful proof of concept activities in 2014 could provide visibility of significant copper-gold resource potential of Oyu Tolgoi or finger style copper porphyries. While earlier stage, the Happy Geo prospect has too emerged as an attractive exploration target, reinforcing that Bronze Fox continues to look better as more activities are undertaken. Kincora is persisting with additional measures to add shareholder value and is encouraged by initial, and further proposed, reform to the Mongolian mineral sectors legislative environment, amongst other efforts to provide additional advantages to the private sector.”

 

 

 

 

 

 

 

 

 

Copper-gold porphyry targets refined and de-risked

Since 2010, Kincora has undertaken soil geochemistry, Vector IP and some sections of DDIP, ground magnetic surveys, and drilled a further 70 holes inside of the Bronze Fox license area. Drilling has expanded the known mineralization footprint to about 40km2, remaining open, confirming porphyry style of copper-gold resource potential with extensive lower grade intersections from at or near surface and proven to 1,360 metres. Results of the last drilling programme, in late 2012 were extremely encouraging with a number of porphyry intersections confirming the potential for a high-grade deposit (localized +4% Cu in our last hole – F72 – drilled into a new target area based upon then recent IP analysis) with broad lower grade (eg +800m @ +0.40%CuEq, including 37m @ greater than 1% CuEq – F62) intersections.

Previous geology and geophysics supported the potential of a copper-gold resource. Indeed early stage studies had commenced on a potentially small scale near production heap-leach SX-EW operation utilising near surface oxide mineralization, and deeper drilling results at the end of the 2012 confirmed the potential for high-grade copper porphyry mineralization. However, the lack of IP data below 400 metres depth, and only in certain areas, limited the ability to reconcile previous drilling and indications of significant scale hydrothermal fluids that support potential concealed higher grade copper porphyry mineralization. Given the limited zones of outcropping primary mineralization, known regional (block) faulting and target of Oyu Tolgoi (‘OT’) or finger porphyry style copper systems, Induced Polarization, coupled with existing magnetics, has been proven to be an effective exploration tool when integrated with proper geological information and interpretation. The success of similar IP programmes at OT and the technical successes experienced by Kincora in late 2012, with drilling at previous IP anomalies returning alteration, sulfides and copper mineralization (+4% localized copper intersection in F72), adds significant substance to IP analysis particularly given existing geological data available at Bronze Fox, which is one of the most advance copper exploration projects in Mongolia.

OT style mineralization generally features relatively narrow (comparing with North and South American porphyries), long strike orebodies, and good extension to depth. As such, the Search IP system, utilized in the 2013 IP survey, which has penetrated to over 800m to 1000m, was selected as the optimal tool to assist locating the mineralization or alteration zone with disseminated sulfides (which is normal for porphyry mineralization) with good extension to depth which may indicate disseminated pyrite/sulfides channels, and support the possibility of ore mineralization based on the comparison of previous drilling results and the distribution of the IP chargeability anomalies. It is thought that those mineralization or alteration zones with good extension to depth have a better chance to host higher-grade mineralization, and economic orebodies.

At Bronze Fox, the 2013 IP analysis illustrates that prior drilling failed to adequately test most large chargeability high anomalies with previous encountered mineralization coincident with lower priority IP chargeability zones. Prior to the 2013 programme earlier geophysics could not provide an adequate guide for either depth extension potential of identified mineralized zones nor for targets below 400m below surface, with drilling being largely lead from encouraging mineralization encountered in previous core. For example the aforementioned holes, F62 and F72, illustrate the grade of CuEq and IP chargeability co-relationship, which support that high chargeability is coincident with sulfides of mineralization zones. The new IP results coupled with the latest alteration and veining studies have “explained” previous results, particularly the extensive 0.20 to +0.30% copper intersections to date, and lead to a reinterpretation and refinement of targets. In F62, over 800m graded at least 0.4% CuEq with subsequent IP analysis indicating the hole only interested the periphery of a relatively weak anomaly target (noting higher grades, including 37m @ +1%CuEq, were coincident with being within less than 500m from the interpreted IP anomaly zone) and subsequent alteration and veining studies indicate a less prospective portion of the interpreted porphyry system. The application of the 2013 Search IP programme, coupled with existing geology and geophysics, and independent analysis undertaken by Professor Tony Crawford and Plus Minerals (Imants Kavalieris) has advanced and refined target generation.

A number of analogies between the current stage of exploration and results at Bronze Fox and Oyu Tolgoi pre “discovery hole” have emerged after our 2013 field season, including geophysical anomalies remaining largely untested with favourable mineralization coincident nearer surface and lower priority IP targets. At Oyu Tolgoi, previous BHP and Ivanhoe drilling failed to reach the geophysical targets, with a change in exploration approach to test the geophysical and hypogene potential resulting in OTD 150, between previous shallow holes (BHP 9 and BHP 10), being the first ‘deep’ hole and credited as the “discovery hole”.

At Bronze Fox nine drilling target zones have been identified following the latest IP survey results being integrated with geology, soil geochemistry, rock chip assay result, ground magnetic survey and historical drilling results. IP survey results illustrate multiple significant strike (+1-2km) chargeability high anomalies with good extension to depth that may indicate disseminated pyrite/sulfides channels.

Two targets of particular note are:

  • Sophie North – a classical geophysical circular feature ~2km x 3km from an estimated ~300-500m depth to +900m. Previous drilling failed to enter IP target zones but returned anomalous copper and gold mineralisation (holes lost in an alteration zone).
  • Eastern West Kasulu/Leca Pass – Numerous holes close to IP targets have returned favourable grades but have failed to test the target zone. Multiple specific +1-1.5km anomalies targeted for potential drilling with regional scout holes and geology providing favourable results.

Successful “proof of concept” activities at the identified targets, including Sophie North and Eastern West Kasulu/Leca Pass, with economic grade (or high grade) intersections, could support a significant copper ore resource. Collectively there is large-scale copper-gold resource potential which is one of the underlying attractions of Bronze Fox. Previous phases of exploration have been favourable, refined and de-risked target generation, and while there is no certainty of exploration success, numerous drill ready targets have been defined, with few other activities that could meaningfully further de-risk these targets (ex-Happy Geo, discussed further below) based on previous experience at Bronze Fox and other porphyry exploration projects.

Happy Geo prospect

Following the very high and large chargeability anomalies identified by the Search IP surveyed in 2013 and 3D IP undertaken in 2012, a further 68 rock samples were collected in late 2013 from various alteration zones focused around the Happy Geo prospect. This region is a relatively early stage exploration area, activities really only commenced in 2013. Favourable soil and rock chip samples, with good gold anomalies and outcrop, were returned during the 2012 and 2103 field seasons. Plus Minerals’ short wave infra-red (SWIR) spectrometer analysis of the 68 recent samples confirmed zones of argillic, sericitic and and silicification alteration with pyrite coincident with the IP chargeability anomalies. The SWIR analysis indicates alteration maybe related to an underlying porphyry system but further analysis is planned and required to confirm this.

Further integration of data and analysis on this area is ongoing and while early stage, and very different to the more advanced northern targets, it could indicated some additional resource potential besides the known copper potential areas in Sophie North, West Kasulu, Leca Pass etc. Two zones of outcrop, both with at least a 1-1.5km strike, have been identified at Happy Geo with rock chip samples of up to 91g/t gold.

For further details please refer to our recently updated corporate presentation:

http://kincoracopper.com/investors/corporate-presentation


Drilling and Discovery Update at the Miller Graphite Project with airborne and ground geophysics

Posted by on Friday, 7 February, 2014

Canada Carbon Inc.  provides an update on the advancement of its winter exploration program on the Miller Mine property. Shortly after drilling began in December, it was halted due to the discovery of VN3, a graphite vein that is two metres thick on surface and continuous along strike for five metres. Drilling was re-directed to the VN3 discovery, and real-time electromagnetics (“EM”) were employed to identify new drill targets in the area.

R. Bruce Duncan, CEO & Director of Canada Carbon Inc. stated, “We continue to be pleasantly surprised by the prolific nature of graphite mineralization at Miller. The VN3 discovery is a wide graphite vein at surface over a large airborne EM anomaly, making it a high priority for re-evaluating graphite potential in this area. We continue to investigate this area using real-time ground geophysics to rapidly identify targets for drilling in the second phase of our winter program.”

Previously, the Company announced a minimum 1000-metre drill program of NQ-sized diamond drill holes to test several VTEM anomalies (see news releases, December 3, November 14, 2013). Drill hole DDH13-09 confirmed that the E2 anomaly is associated with a sulfide-rich intersection with minor disseminated graphite. Drill hole DDH13-10 targeted the E3 anomaly and encountered a wide intersection of minor and disseminated graphite in marble. During movement of the drill to the E3 drill site, a graphite-rich vein (VN3) was exposed over two metres in width and along strike for five metres before pinching out.

The VN3 discovery was subjected to drilling with six shallow drill holes targeting the vein at depth and along its projected extension on strike and at depth. The winter campaign encountered bad weather, which slowed down the overall drilling production. A total of 547 metres in nine holes was completed in this phase of the program. Maps showing the DDH location can be found at:

DDH Location Link: www.canadacarbon.com/miller-graphite-project

The most significant results are from the new vein discovery VN3 where drilling in core hole DDH13-15 encountered 48.60% C graphite (Cg) over 1.8 metres, including 63.20% Cg over 0.5 metres. This intersection of graphite occurs 4.6 metres (vertically) beneath the VN3 showing. DDH13-14 intersected a graphite vein grading 50.50% over 0.30 metres in 3.50 interval metre interval grading 6.80% Cg between the surface and the DDH13-15 graphite mineralization. The VN3 showing remains open at depth.

The other hole of interest is hole DDH13-11, which targeted a wollastonite-graphite pod located 22.5 metres southeast of the VN2 showing in the trench area. The hole was successful in extending the mineralization hosting the pod to a depth of 8.19 metres (vertically) beneath the surface showing. Grades similar to other graphite pods (see news release dated November 25, 2013), specifically 8.10% Cg over 2.3 metres including 11.00% Cg over 0.90 metres. The pod southeast of the VN2 showing is suspected to be within the same mineralized corridor that extends to at least 39.3 metres (vertically) beneath the VN2 showing. The mineralized corridor also remains open at depth.

The new vein (VN3) discovery triggered the Company to halt the drill campaign and perform a ground electromagnetic survey over the large VTEM anomaly surrounding target E3 to find the best targets before drilling resumes. Dubé & Desaulniers Geoscience Ltd. (Ottawa) was engaged to perform a ground electromagnetic survey using the PhiSpy system. This portable time-domain EM system enables the detection of conductive rocks at optimum depths of 10 to 20 metres, with the results seen in real time on a display screen. This allows for the strongest anomalies to be immediately identified for further testing.

The PhiSpy survey was performed over a 0.11 square kilometre area centered on VN3 with line spacing between 10-20 metres for a total of 12.7 line kilometres. The survey identified 14 anomalies ranging between 5 and 54 metres in maximum dimension. The widest anomaly was discovered in the vicinity of the E3 target identified previously by Geotech, and the Company is currently working with Geotech to re-interpret their results to include the PhiSpy data. Additional data from the core and surface showings will also be incorporated to identify drill targets in this area.

Winter field work including trenching, beep-mat and TDEM surveys, and prospecting is currently underway on the new PhiSpy anomalies in the VN3 area. Drilling will resume once reinterpretation of all results are complete. Existing targets include the new VN3 showing, the trench area where the VN2 surface mineralization is established to a depth of 39.3 metres, and the E1 anomaly, located 800 metres north of the Miller mine pit. Geophysical maps indicate that E1 lies between two magnetic anomalies that may correspond to a lithologic contact of two geological units having a similar geological context to that of the known Miller mineralization (see news release, November 14, 2013).


Gravity Anomalies at Depth in Ptarmigan Basin in BC

Posted by on Wednesday, 22 January, 2014

Silver Mountain Mines Inc. announces new results from further modeling of data acquired from the 2013 gravity survey completed on its wholly-owned Ptarmigan Property (the “Property”), located near Radium, British Columbia (see News Release dated October 17, 2013).

Detailed gravity survey data collected by Excel Geophysics previously identified a number of exciting gravity anomalies in the Ptarmigan Basin that merit subsequent evaluation. Continued modeling and interpretation of the gravity data indicates these significant anomalies are located at greater depth than known high grade mineralization identified through surface sampling, trenching and/or diamond drilling completed between 2009 and 2012 (“2009-2012 Geological Exploration Results”). Diamond drilling proposed for 2014 will require deeper holes to evaluate these recently discovered gravity anomalies.

The detailed gravity survey completed within the Ptarmigan Basin comprised a total of 329 gravity stations, with 56 stations along the upper ridge and 273 stations within the basin. Stations within the basin were collected along 25 survey lines oriented east – west, with a station spacing of 50 meters. Survey lines were spaced 50 meters apart within the basin and 25 meters apart in the area over the former Ptarmigan mine workings and the Upper-East Ptarmigan Basin.

Modeling and interpretation of the gravity data has resulted in identification of 3 well defined anomalies in the Ptarmigan Basin (Anomalies D, E, F) (www.silvermountainmines.com/maps.asp), which are interpreted to be located below 240m depth, extending to at least 540 m below surface, based on a minimum density contrast of 1.4 g/cm3. All three anomalies are strong and modeling. Interpretation of the data, as well as correlation to results reported in the “2009-2012 Geological Exploration Results” suggests that these new anomalies are sources and/or deeper extensions of the previously identified shallow mineralization. All three anomalies present very attractive targets and will be drilled in 2014.

Ptarmigan

The northern anomaly (D) is located northwest of the former Ptarmigan Mine, underlying the valley floor and has been interpreted from prior geophysical surveys. The middle anomaly (E) is located east of the surface trace of the former Ptarmigan Mine, with approximate surface dimensions of 172 m x 50 m. The southern anomaly (F) has estimated surface dimensions of 100 m x 26 m. The Upper Ptarmigan massive sulphide occurrence, spatially associated with the west margin of gravity anomaly (F), extends east toward the East Ptarmigan area, where additional drill holes were completed to further evaluate and develop semi-massive to massive sulphide intercepts, identified by surface trenching and drilling in 2009-2012.

These anomalies are the objective of the Company’s proposed 2014 drill program. Analysis and modeling continues on the gravity results from the 2013 program to better define and develop the anomalies.


Geophysical Survey at Las Morras Project (Spain)

Posted by on Friday, 20 December, 2013

Emerita Gold Corp.  announces the completion of geophysical exploration programs at its 100% owned Las Morras Property in the Extremadura Region of western Spain. The geophysical surveys consisted of Very Low Frequency (VLF), Induced Polarization (IP) and Electrical Resistivity Tomagraphy (ERT) surveys over the Central and Northwest target areas. The surveys identified several anomalies that are interpreted to represent shear zone structures coincident with the previously identified gold geochemical anomalies (see news releases dated August 29 and April 8, 2013). These interpreted structures will be evaluated as potential bedrock sources for the gold identified in the soils over the geophysical features by trenching and, if appropriate, drilling.

Background

As previously reported, geochemical surveys have identified two areas with strong gold anomalies referred to as the Central and the Northwestern areas . In the Central area two gold geochemical anomalies have been identified, both approximately 300 meters wide and extending in an east-west direction 500 meters and 800 meters, respectively. These anomalies extend beyond the survey limits to the east and also to the west (see press release dated April 8, 2013).

The Northwestern area is characterized by a single gold anomaly (Figure 3) that extends approximately 700 meters long and over 100 meters wide in an east-west direction. This anomaly also extends beyond the limits of the survey area to the west and to the east (see press release dated August 29, 2013).

Geological mapping indicates that these gold anomalies are underlain by zones of strong shearing in bedrock. The shear zones are developed within the Precambrian Schist-Greywacke Complex (SGC) and are characterized by a zone of high strain and local quartz-gold veining, with predominantly a east-west direction. Outcrop is limited and the geophysical surveys are designed to improve the targeting of the follow up program.

Geophysical Surveys

Geophysical surveys (VLF, IP and ERT) were carried out during October and November 2013, with interpretation completed in mid December, to identify geophysical anomalies representative of bedrock structures potentially related to mineral occurrences. The surveying was performed in both, the Northwestern area and the Central area.

Survey Results

The VLF survey consisted of 27 linear kilometres in both the Northwestern and Central areas, where measurements were performed every 10 meters. As shown in Figure 4, in the Northwestern area 8.9 linear kilometres were surveyed on 14 lines oriented north-south, with lines ranging from 350 to 1,100 meters each. In the Central area 18.1 linear kilometres were surveyed on 20 lines with north-south orientation and lines ranging from 550 to 1,100 meters each (Figure 6). The spacing between lines was determined according to the results of the geochemical campaign (see press release dated August 29, 2013), ranging from 50 to 100 meters.

The IP and ERT surveys consisted of 10.4 linear kilometres in both the Northwestern and Central areas. Both the IP and ERT surveys were measured simultaneously with the same device. The spacing between electrodes was 10 meters, which allows detection of features up to 120 meters depth. Figure 5 shows the distribution of the 11 lines of the IP and ERT surveys for the Central area, where 6.93 linear kilometres were surveyed. All lines were 630 meters in length oriented in north-south direction excepting one line with an east-northeast orientation. In the Northwestern area 5 lines were measured by IP and ERT, for 3.47 linear kilometres. The lines varied in length, from 630 to 950 meters. The spacing between lines was determined based on the results of the geochemical campaign (see press release dated August 29, 2013), ranging from 100 to 450 meters.

VLF and ERT-IP images/profiles clearly indicate several subvertical anomalous geophysical zones, characterized by resistivity-chargeability highs (i.e. 300-5,000 Ωm, and >150 ms) (Figure 6).

Geophysical Survey Interpretation

The VLF survey showed conductive anomalies in both the Northwestern and Central areas which have a predominantly east-west orientation. However, some alignments of northwest- southeast direction have also been identified. These VLF anomalies correspond to fault orientations seen in mapping and with the geochemical data.

The IP and ERT surveys allowed the identification of bodies and zones with high chargeability values in the case of IP and high/low resistivity values in the case of ERT. The survey identified bodies with a broad east-west orientation in both the Northwestern and Central areas, which are coincident with the VLF results.

The geophysical data, together with geologic information and geochemical data from the two target areas, identified features having characteristics that would be expected from a shear zone system. This shear zone system is interpreted to represent a possible source of the gold found in the area and will be the focus for follow up trenching and, if merited, drilling. The geophysical anomalies are coincident with geochemical anomalies found in the central and northwest areas. Furthermore, both the geochemical and geophysical anomalies are open along their strike, particularly to the east. The extent of the anomalous body in the Central target area, based on the geochemical and geophysical results, is 1,200 meters long, 90 meters wide with an extension to a depth of at least 120 meters based on the IP/IRT, corresponding to the bottom of the geophysical profiles. In the Northwestern target area the anomalous body is 600 meters long, 80 meters wide and continues to a depth of 100 meters, corresponding to the bottom of the geophysical profiles.

The identification of geophysical anomalous areas (i.e., faults zones and bodies of high resistivity and high chargeability) represent the prospective targets for trenching and drilling.

Survey Methods

Both electromagnetic (EM) and DC-geoelectrical methods were selected to perform the survey. These methods are well-known to be suitable for cost-effectively identifying geophysical characteristics for geological features such as shear zones with low sulphide mineral concentrations. The selected techniques were Very Low Frequency (VLF) (Klein and Lajoie, 1980), Electrical Resistivity Imaging (ERI) (Griffiths and Barker, 1993) and Induced Polarization (IP) (Keller and Frischknecht, 1966).

The VLF measuring was carried out with an ENVI system (Scintrex) equipped with a VLF sensor module. The VLF sensor consists of three orthogonal coils designed to make it an omni- directional system.

The acquiring system for the ERT-IP was a Terrameter LS resistivimeter (ABEM SE) with 12 channels and 250 W Tx ouput. The array was implemented by 4 multicore reels of 16 take-outs each, steel electrodes and connections, up to 64 electrode configuration system.

Details and Figures


Several EM Conductors Confirmed at Mulloy Graphite Project, Ontario

Posted by on Tuesday, 17 December, 2013

CARIBOU KING RESOURCES LTD. reports that several significant electromagnetic (EM) conductors have been confirmed on its Mulloy graphite project, located roughly ten kilometers west of the Zenyatta Ventures Ltd. Albany graphite project in Ontario. Four electromagnetic (EM) conductors are confirmed, three of which have a strike length over 700 meters, with the fourth striking over 600 meters in length, and all conductors remain open along strike. Each of the conductors corresponds in part with magnetic lows that are believed to indicate graphite mineralization, and one conductor is supported in part by historical drilling that encountered several intervals of graphite mineralization as described in detail below.

Michael England, CEO & Director states, “Our Mulloy property continues to demonstrate a great potential for significant graphite mineralization. Just as we expected from our earlier reconnaissance geophysics, the EM conductors are much larger than initially indicated, with a good correlation between conductivity and non-magnetic character expected for graphite mineralization. Our drill permits are expected shortly, we have a drill ready, and most importantly, we have road access directly to our drill targets.”

A total of seventeen line-kilometers of geophysics were completed at a line spacing of 100 meters, and both horizontal loop electromagnetic (HLEM) and magnetic data were collected. The survey focused on an area where reconnaissance HLEM and magnetics identified several anomalies that defined a possible northeast-southwest conductive trend (see news release, September 25, 2013). The new results confirm the previous data, extending four of the individual anomalies into southwest-striking linear conductors up to 800 meters in length that remain open along strike. The southernmost conductor ‘A’ is roughly 700 meters long, with an apparent broadening and narrowing that suggests a width of up to 100 meters along portions of the conductive zone. Conductors ‘B’ and ‘C’ are 630 and 885 meters long respectively, and both exhibit breaks along strike that may indicate offset by cross-structures. Anomaly ‘D’ is 875 meters long and exhibits broadening and narrowing up to 100 meters in width, as well as some offset along strike. Conductors C and D have significant strike lengths correlated with strong magnetic lows that are very likely due to graphite mineralization. Conductor B is near a historic drill hole that encountered 90% visual graphite in 18.68 meters of graphitic schist, followed by a second graphitic schist intersected over 19.78 meters for a total of 38.46 meters (Ontario Ministry of Northern Development and Mines, Report 42F15NE8019). An estimate of true thickness cannot be determined from the historic drilling, and the graphite content is a visual historical estimate and should not be relied upon without lab assay confirmation.

There are still several conductive anomalies identified in the original reconnaissance data to the southwest of the present survey that remain to be further delineated, and will be the focus of future ground-based surveys. The EM conductors from the present survey can be seen in plan view with magnetics on the company website at http://caribouking.com/wpsite/graphite/mulloy.


Seismic and airborne geophysics for copper project in southeast Arizona

Posted by on Saturday, 14 December, 2013

Millrock Resources Inc. recently completed a seismic geophysical survey and drilling of a single reverse circulation borehole at its Monsoon copper project in southeast Arizona. The survey results and the drill hole indicate that it is unlikely that a large porphyry copper deposit exists within 500 m of surface. The project was the subject of an option agreement with FQM (Akubra) Inc, formerly Inmet Mining Corporation, a wholly owned subsidiary of First Quantum Minerals Ltd. (“FQML”) whereby FQML may have earned a 70% joint venture interest. FQML has advised Millrock that it will withdraw from the option agreement. Millrock believes there is potential for discovery of a porphyry copper deposit at greater depth and intends to seek a new funding partner to further test the targets developed.

Prior to the recent exploration phase Millrock had carried out property-wide biogeochemical sampling, soil sampling, water well sampling, and airborne ZTEM and magnetic surveys. The work was designed to search for buried porphyry copper deposits along the projected trend of the Safford copper deposits in Laramide-aged rocks that host copper mineralization in the district.

Reprocessing and interpretation of historic seismic data had led Millrock to believe that an upthrown structural block of Laramide-aged rock may be present, and that copper mineralization may exist in the shallow subsurface. A modern 2D seismic reflection survey was carried out to confirm the historic survey in an area where Millrock had discovered polymetallic anomalies in various geochemical surveys. Two lines totaling approximately 17 km were surveyed. Two possible interpretations could be made from the seismic data. One interpretation indicated the favourable Laramide contact was at an approximate depth of 500 m below surface. Another interpretation indicated a depth of approximately 1,000 m.

A vertically-oriented 500 m reverse circulation hole was drilled as a stratigraphic test and to determine the source of the geochemical anomaly. Results of the drilling suggest that an upthrown structural block does exist in the area tested. Tertiary volcanic rock was intersected at only 100 m below surface; a much shallower level than in holes drilled by prior explorers elsewhere on the property. However, the contact with the Laramide aged rocks must lie deeper than 500 m; most likely at an approximate depth of 1,000 m.

The technical information within this document has been reviewed and approved by Gregory A. Beischer, President & CEO of Millrock. Mr. Beischer is a Qualified Person as defined in NI 43-101.

Target: The target at the Monson property is a giant high-grade porphyry copper deposit (± gold and molybdenum). The project is located approximately 50 km (31 mi) south of the Morenci Mine and 50 km (31 mi) southeast of the Safford Mine, both giant porphyry copper deposits actively being mined by Freeport McMoran.

The property is covered by post-mineral Tertiary volcanic rocks or alluvium and remains largely untested for porphyry copper mineralization. Geochemical, geophysical and geologic data, however, suggests potential for the discovery of a buried porphyry copper deposit at Monsoon.

Location and Setting: The Monsoon property is located near Duncan in southeastern Arizona approximately 50 km (31 mi) southeast of Safford, Arizona. Topography varies from moderate to flat. Paved highway 70 passes just east of the property with good access to the property provided by dirt roads.

Geology and Mineralization: The Monsoon property is located southeast of the Safford Mine along the Safford porphyry copper trend as defined by known mineralization at the Safford (Dos Pobres, Lone Star, San Juan and Sanchez), Sol and San Jose porphyry copper properties. Geochemical and geophysical data further defines the Safford trend through the Monsoon property

The project area is covered by post-mineral Tertiary volcanic rocks and alluvium, however geochemical, geophysical and geologic data suggests potential for the presence of a buried porphyry copper deposit. Past drilling is limited to two shallow holes drilled in the 1990′s by Noranda. Neither hole penetrated Laramide-aged basement, drilling only post mineral alluvium. Zones containing anomalous copper and molybdenum values were intersected in both holes. The Laramide-aged geology of the property remains largely unknown and the porphyry copper potential unexplored.


The new MT anomalies near Paulatuk, Northwest Territories

Posted by on Tuesday, 10 December, 2013

Darnley Bay Resources Limited (“Darnley Bay” or the “Company”) announces the discovery of two new large magneto-telluric (MT) anomalies at its 100% owned Darnley Bay Property, located near Paulatuk, Northwest Territories. Like the first MT anomaly – reported (see October 13, 2013 press release), the new anomalies are spatially coincident with previously-discovered gravity anomalies, are considered good to moderate conductive zones and appear to be hosted by prospective Proterozoic rocks. They are located respectively two and twelve kilometres east of the first MT anomaly.

Darnley Bay received the latest 3D inversion results from EMpulse Geophysics Ltd, the geophysical contractor. The new inversions not only used the magnetic field tipper data, but also included static shift analysis to minimise near surface geologic noise and to better image the apparent resistivity distribution at depth (see EMpulse web site for more details http://www.empulse.ca/).

The MT survey was performed in August 2013 and consisted of a total of 73 line-kilometres, with stations every 500 metres, over three different lines (North, South and East). See http://www.darnleybay.com/news/Figure_1.html andhttp://www.darnleybay.com/news/Figure_2.html, 1:250,000-scale plan views, showing the location of the surveyed lines and of the MT anomalies over gravity and magnetic models backgrounds. http://www.darnleybay.com/news/Figure_3.html is a stack of three vertical profiles along the North Line; the two upper profiles show the MT anomalies over a gravity and a magnetic models background; the lower profile show the MT anomalies over a 2D geological model that honours the gravity, the magnetic and the seismic data of this sector. The new 3D-inversion model revealed:

  1. On the North Line, 12 kilometers east of the first anomaly, a 1.5×3.5 kilometres anomaly with a maximum thickness of 800 metres, its center being at elevation -2,000 metres (below sea level), It is considered to be a moderate to good conductive zone with apparent resistivity values ranging from 32 to 8.9 Ohm-m
  2. On the North Line, two kilometres east of the first anomaly, a 1.0 x 2.0 kilometres anomaly with maximum thickness of 600 metres, centered at elevation -1,300 metres with apparent resistivity between 32 Ohm-m and 15.1 Ohm-m
  3. On the South and East Lines, three weaker anomalies (80 to 45 Ohm-m), with dimensions of 1.0×1.0-3.0 kilometres between elevations -1,000 to -2,400 metres.

The extent, depth, conductivity and the geological setting of the three MT anomalies on the North line fit the metallogenic exploration models Darnley Bay is exploring for: either a copper-nickel magmatic model (example: Sudbury in Ontario or Noril’sk in Russia) or an Iron Oxide Copper Gold model (example: Olympic Dam in Australia).

“I am pleased by these latest results,” says Jamie Levy, President of Darnley Bay, “we now see two new conductive magneto-telluric (MT) anomalies, along with our previously announced anomaly, on the North line. In addition, three less conductive MT anomalies have been interpreted on the East and South lines. We believe the north line has identified priority drill targets with favourable geological and geophysical settings.

The Darnley Bay Property covers a total of 456,000 hectares with a series of mineral concessions and prospecting permits obtained from the Inuvialuit Regional Corporation and the Canadian Government. The Property encompasses what is considered one of the largest and strongest coincident regional gravity and magnetic anomalies in the world with dimensions of 80 x 100 kilometers. The regional gravity anomaly has absolute amplitude of 132 mGal (milli-gals), while the magnetism reaches 1,350 nT (nano-teslas). Darnley Bay staff believes the source of this anomaly is a large and deep mafic-ultramafic intrusion, the type underlying other base metal mining camps, with the potential for mineralization being at shallower depth than the main intrusion itself. It is thought that it was formed during the regional Franklin or the Mackenzie magmatic events, both Proterozoic in age (720 million years and 1,270 million years respectively).

Magneto-tellurics is a geophysical method of imaging the Earth’s subsurface by measuring natural variations of electrical and magnetic fields at the Earth’s surface. In the 1990′s, MT was successfully used to locate mineral deposits as deep at 1,750 metres in the Sudbury nickel mining camp. In the last 10 years, the technique has seen many improvements, particularly with the development of modern 3D inversion. In the oil industry, it is now routinely used, in conjunction with seismic, to better define deep drilling targets.

At the Voisey’s Bay nickel mine, magneto-telluric survey data detected the nickel-copper mineralization at depth, with apparent resistivities between 10 and 25 Ohm-m (http://www.cemi.utah.edu/appls/mt/) similar to the range of values of the three MT anomalies detected on the North line last August on Darnley Bay Property. Resistivity from the Darnley Bay MT anomalous zones may decrease once the final processing of additional low frequency data is completed. Readers are cautioned that the similarity of the survey results is not necessarily indicative of mineralization on the Property. The magneto-telluric method only measures variations in resistivity in the earth and MT anomalies can also be caused by variations in resistivity due to large scale variations in lithology, structure, and/or conductivity of disseminated minerals or pore fluids as in sedimentary rocks. However, the fact that all the anomalies detected so far are closely related to gravity anomalies (http://www.darnleybay.com/news/Figure_1.html and http://www.darnleybay.com/news/Figure_2.html) suggests that the MT anomalies could be produced by denser material than the surrounding rocks; metal-rich lithologies and/or alteration zones being possible sources.

Darnley Bay is waiting for more results from EMpulse; particularly the processing and inversion of the extended bandwidth time series (to 1Hz) that should provide information to depth of 3 to 5 kilometres. Darnley Bay is planning to do more detailed MT surveying on each side of the North line, in order to better define the attitude and orientation of the anomalies for an eventual drilling program. Darnley Bay is also planning more MT surveying over other selected areas on the Property.

The 2013 MT survey on the Darnley Bay Property was performed by EMpulse Geophysics Ltd, from Dalmeny, Saskatchewan (http://www.empulse.ca/). The technique used for this survey is Transient Audio-Magneto-Telluric, with proprietary SFERIC II instrumentation and Adaptive Polarization Stacking algorithm. David Goldak, M.Sc. (Physics), President of EMpulse Geophysics, was in charge of the survey in the field and responsible for the 3D-inversion and the data processing. The technical information of this Press Release has been prepared, reviewed and approved by Mr. J. Gauthier, P. Eng., P. Geo., the Qualified Person as defined by National Instrument 43-101.

The Company is very pleased to announce the hiring of Alan King as a senior technical adviser. Mr. King is a geophysicist who most recently served as the Chief Geophysicist for Vale’s global exploration operations. Alan holds a B.Sc. in geology from the University of Toronto and a M.Sc. in geophysics from Macquarie University. Mr. King has worked as a geophysicist in exploration and resource development globally, including in Canada, Australia, and Brazil, since 1976. Mr. King has been involved in the application of geophysics in mining, oil sands development and environmental applications for a variety of commodities. Mr. King currently acts as a geophysical consultant through Geoscience North.