Posts Tagged Geotech Ltd.

Flin Flon-Snow Lake VMS Belt under geophysical observation

Posted by AP on Sunday, 5 September, 2010

VMS Ventures Inc.  updates various activities related to its extensive property package in Manitoba, Canada.

Sails Lake

Although optioned as a VMS project, the Sails Lake property is also well known to host gold mineralization. A soil geochemical survey was undertaken in late July to follow up on prospecting and historical exploration that discovered gold mineralization at Sails Lake. In this particular area, surface rock chip samples have returned assays of up to 30 grams per tonne gold, but they have never been drilled or surveyed by ground geophysics. An IP ground geophysical survey is planned to cover the gold targets later this month. It will also test adjacent areas prospective for copper-zinc.

This project has already produced over 50 discrete drill targets. They are now being evaluated to select the best prospects for drilling. Permitting for the planned mid-October drill program is now in process.

Morton Lake

The Company originally staked the Morton Lake project, located 25 km west of Snow Lake, in part, because of its geological similarity to the rocks hosting the past producing Dickstone copper-zinc mine, only 500 metres to the west. In addition, historic drill holes, some as early as 1956, intersected copper and zinc mineralization with typical VMS-type alteration, indicative of a strong hydrothermal mineralizing system, capable of hosting significant VMS deposits.

The project moved up the VMS Ventures priority list this summer after Dr. Alan Bailes visited the Reed Lake Deposit and used high precision rock geochemistry to assist with geological interpretations. He discovered that the host rocks at the Reed Lake Deposit are connected to the same rock package hosting the Dickstone Mine and Morton Lake approximately 30 km north of Reed Lake.

As a result, the Company has doubled its land position in the area, including the prospective rock package to the south towards Reed Lake. The Morton Lake Project now is over 23 km in length and approximately 90 sq km in area.

VMS has previously surveyed the northern half of the property with the VTEM airborne system. In late July, VMS geologists began a program of MMI soil geochemistry over the VTEM anomalies. These prioritized VTEM targets occur along strike from, and at greater depths than, the prospective mineralized zones identified from historical data. These anomalies comprise the preliminary list of drill targets. Additional targets will be established following completion of ongoing field work and final review of the historical data base. An initial drill program is planned for winter 2011.

Copper Project

Advances in exploration technology have created new opportunities in old areas. The VMS discovery at Reed Lake indicates the prospectivity of the “covered” areas of the Snow Lake belt, and how using old data sets with new methodologies and insights can help the Company locate drill targets in areas that in the past may have been ignored, left behind, or missed completely.

Most of the 250 sq km Copper Project, located to the east of Snow Lake, is covered with a 25 to 40 metre thick dolomite rock layer. With no outcropping of the prospective volcanic rock, the team is effectively blind to the property’s geology. To rectify this, the team has analyzed and integrated data from over 200 drill holes’ historical records into the Copper Project database over the summer. These historical drill records provide a description of the underlying geology at this large, prospective property.

Other sources of information assisting the team in drill targeting include the VTEM airborne conductivity and magnetic geophysical surveys and soil geochemical sample surveys.

VMS plans to drill at the Copper Project in winter 2011.

About VMS Ventures Inc.

VMS Ventures Inc. is focused primarily on acquiring, exploring and developing copper-zinc-gold-silver massive sulphide deposits in the Flin Flon-Snow Lake VMS Belt of Manitoba. The Company’s VMS project property portfolio consists of the Reed Lake Project, Copper Project, McClarty Lake Project, Sails Lake Project, Puella Bay Project and Morton Lake Project. Outside of the Snow Lake camp, the Company holds massive sulphide prospective properties near the past producing Fox Lake and Ruttan copper-zinc mines, near the communities of Lynn Lake and Leaf Rapids in northern Manitoba. These properties are located in the mining friendly province of Manitoba, Canada. The Company also has optioned three properties in the Sudbury mining camp. They are Terra Incognita, Golden Pine and Black Creek.


MacDonald Mines Acquires Hornby Properties with promising geophysical data

Posted by AP on Tuesday, 17 August, 2010

MacDonald Mines Exploration Ltd.  announces that it has finalized an agreement to acquire 100% of the Hornby and Pender Properties, located in the “Ring of Fire” area of the James Bay Lowlands, with Temex Resources Corp. An exploration update follows the agreement details below.

The Hornby Property

MacDonald Mines Hornby Property is located contiguous to the KWG/Spider “Big Daddy” chromite deposit. The Company believes, based on a total review of its airborne survey and historical exploration data, that the Hornby Property has the potential to host the extension of the Big Daddy deposit.

The Property also exhibits prospective volcanogenic massive sulfide (VMS) (copper, zinc and lead) geophysical targets and is on same stratigraphy as Spider/KWG McFauld’s Lake VMS discovery. Historical drilling in the proximity of this prospective target intersected VMS mineralization.

Exploration Update

As detailed in the Company’s recent press releases, MacDonald Mines has several significant mineral opportunities across multiple properties in the James Bay Lowlands. The spring 2010 drill program consisting of 26 holes, 4,471 meters and focused on the McNugget Property and identified new VMS mineralization of substance on four fold limbs.

A summary of the highlighted drill holes reported were as follows;

Copper (Cu)

  • Hole MN10-102 intersected 1.03% over 15 metres
  • Hole MN10-111 intersected 1.04% over 5 metres
  • Hole MN10-90 intersected 1.11% over 5 metres

Zinc (Zn)

  • Hole MN10-104 intersected 3.3% over 9 metres
  • Hole MN10-106 intersected 2.55% over 4 metres
  • Hole MN10-110 intersected 2.82% over 5 metres
  • Hole MN10-102 intersected 2.5% over 3 metres
  • Hole MN10-104 intersected 2.00% Zn and 0.88% Cu over 6 metres

Silver (Ag)

  • Hole MN10-87 intersected 13.32 g/t over 5.3 metres
  • Hole MN10-94 intersected 16.56 g/t over 4 metres
  • Hole MN10-102 intersected 11.67 g/t over 3 metres
  • Hole MN10-104 intersected 11.97 g/t over 3 metres

Final assays from this last phase of drilling are pending and will be reported once they have been received and reviewed by the Company.

This large VMS system, which is open in all directions and yields VMS mineralization over a potential cumulative strike length of approximately 20 kilometres, was described by consulting geologist Hadyn R. Butler, P.Geo, as potentially being a new VMS camp.

Next Phase of Drilling to Commence Early September With 2 Drills

Crone Geophysics’ down-hole and surface EM system was employed in the previous phases of exploration, assisting in the discovery of the four VMS mineralized fold limbs, and will again be utilized for the upcoming drill program for drill target control.

The Company will continue to operate two drills for this upcoming drill program and will focus on the positive results from its successful spring 2010 drilling program on the McNugget Property.

Targeting Nickel and VMS on McNugget Property


VMS

The pyrrhotite-chalcopyrite-sphalerite-pyrite mineralization observed in the core of the McNugget property is indicative of VMS mineralization. The pattern of chlorite and sericite alteration, coupled with varying Cu/Zn ratios and alteration index plots from available geochemistry, indicates that there are at least three separate hydrothermal discharge vents/centres found within the same stratigraphic horizon of a large fold complex (McNugget).

Sulphide mineralization observed in drill core generally appears between footwall metasediments and hangingwall felsic volcanics, a lithologic sequence indicative of a Bimodal-Siliciclastic VMS environment.

Based on alteration mineralogy, geochemical vector analysis and 3-D geophysical modelling, it appears that the significant VMS mineralization intersected to date is peripheral to the volcanic centres (sources).

The Company’s current information is pointing to the Fold Nose found on the property as the most immediate prospective appreciable VMS mineralization. A surface and airborne electromagnetic (EM) survey are currently underway on the Fold Nose – and these results will direct the drilling program.

Nickel

The highest priority nickel target on the McNugget property remains to be in the vicinity of MN07-39. A completion of the airborne magnetic and EM, and Noront Resources’ recent image of the Eagles Nest indicates that the same magnetic horizon extends from the Noront discovery through the McNugget property – adjacent to MN07-39. Prior to further drilling, this area will be investigated further using the following geophysical techniques – VTEM and AeroTEM IV, magnetics, and Crone Geophysics surface and down-hole pulse EM system.



Continuation of EM targeting on Ring of Fire

Posted by AP on Tuesday, 6 July, 2010

MacDonald Mines Exploration Ltd. anounces that it has recommenced its 2010 exploration drilling program in the Ring of Fire, James Bay Lowlands.

The Company will be utilizing two drills for this phase of drilling and will focus on the results from its successful spring 2010 drilling program.

The spring 2010 drill program on its McNugget Property identified new volcanogenic massive sulfide (VMS) mineralization on four fold limbs.

Targeting Nickel and VMS on McNugget Property

“The McNugget Property has moderate to high potential for both Cu-Zn volcanogenic massive sulfide and Ni-Cu-PGE sulfide deposits.” – Dr. Tucker Barrie, P. Geo.
This phase of drilling will focus on five principal base metal occurrence areas: 1) Campbell (Cu-Zn, to northeast); 2) Campbell West (Cu-Zn, north central); the 3) Fold Nose (Cu-Zn, to northeast); 4) Southern (Cu-Zn and Ni-Cu, to south); and 5) Area 39 (Ni-Cu-PGE, to southeast. (Figures are available on MacDonald’s website at www.macdonaldmines.com). Initial drilling will be concentrated on the four VMS horizons identified through the previous drilling and geophysical investigations.

East Portion of McNugget Property on Same Stratigraphy as Noront’s Eagles Nest

Unlike Noront’s discovery, the EM conductors (2) in the vicinity of MN07-39 are greater than 300m in strike length (based on both VTEM and Crone PEM – surface and borehole) compared to the Eagles Nest 100-200m strike length.  Six DDH holes are targeted in this area to explain the EM anomalies during the current drill program.

Company Provides  Detailed Outline of  Voisey’s Bay-type Target on Hulbert-Salo Property

The Company has staked 14 mining claims covering an area of 3,140 hectares with magnetic and EM (VTEM survey) characteristics of an intact ultramafic-gabbroic intrusion.  Modelling of these data results in a spoon-shaped intrusion with multiple internal structures, similar in size and shape of the Voisey’s Bay complex which hosts numerous Ni-Cu deposits.

The VTEM/Mag conducted over the Property has identified an anomaly approximately 10.9 km long by greater than 3.3km wide at its widest.   Historical prospecting over the area identified both gabbroic and ultramafic rocks. An interpreted “feeder zone/dyke” exists to the west of the main intrusive.  The most prospective EM conductor - the primary nickel target – is located just above the throat of the feeder dyke, similar in position to the Ovoid at Voisey’s Bay. A 3D model of the magnetic data is available on our website.

“It is both unusual and highly prospective to find a system that appears to be so intact with EM anomalies identified in groups within the magnetic network/structures (cycles or influxes)”,  comments Quentin Yarie, P.Geo. Vice President of Exploration.   “The Voisey’s Bay mineralization has been explained in terms of a model calling for repeated influxes of magma and these characteristics are obvious in the Hulbert-Salo data.”

Current short term work plans include a Crone PEM ground survey over the most prospective Nickel targets (identified from the VTEM inversion).  Upon review of this data, a drill program will be defined.  Because the Hulbert-Salo property is in a  new area MacDonald will engage in consultation with both Webequie and Kasabonica First Nations and outline the proposed first phase of drilling.  This is in keeping with MacDonald Mines established protocols regarding exploration on historical lands used by First Nation communities.

The ground geophysical program has been used by MacDonald Mines on its McNugget Property resulting in significant success in identifying targets of interest for drilling.  Based on previous experience, the Company is confident that this process can be completed quickly and with minimal impact on the ground as it requires no line cutting (GPS positioning would be utilized).

MacDonald Mines in presenting this target of opportunity cautions that drilling will be required to confirm the sources of the EM conductors.


Drill program and upcoming Exploration of VMS Ventures Inc.

Posted by AP on Saturday, 3 July, 2010

VMS Ventures Inc. reports that the first round of drilling at the Copper project has been completed and that no significant economic mineralization was intercepted in the 5 holes drilled. All geophysical targets were explained by the drill program which intersected thick sections of conductive graphite-rich sedimentary rock units. The area of the first drill program is roughly 2 km by 3 km, and is a small portion of the 35 km by 11 km Copper Project.

This first drill program focused on targets that occur on the northeast section of the property in a geological environment dominated by chemical and clastic sedimentary rocks. In the Snow Lake area these rocks host zinc-rich base metal massive sulphide-type deposits, but are not the typical volcanic host rocks to the copper-zinc deposits mined in the Flin Flon – Snow Lake camp.

Dr. Mark Fedikow, VP Exploration states: “Although the geophysical conductors identified in airborne surveys were explained, none of the targets were mineralized or significantly altered as would be expected in a volcanogenic base metal massive sulphide-type mineralizing system.”

One of the results of this initial drill program is that the Company has converted one of its Mineral Exploration Licenses within the project to claims covering untested geophysical anomalies located to the south of the recent drilling.  This will reduce the holding cost of the land and allow previous work expenditures to be applied as assessment credits to the new claims. The Copper project is one of the largest land positions held by the Company in the Flin Flon – Snow Lake greenstone belt and with the conversion of this MEL to claims the land size is reduced by approximately 12% of its total area.

UPCOMING EXPLORATION

This summer and fall VMS exploration programs will focus on areas underlain by volcanic rocks that occur beneath the younger Paleozoic dolomite cover. These volcanic rocks typically host the base metal deposits being targeted. Company geologists are reviewing historical drill hole data for evidence in drill hole geology to compliment geophysical and geochemical survey information used to detect buried mineralization.

The Company has several exploration programs planned. These include drilling, prospecting, geochemical survey sampling and ground truthing of prospective airborne geophysical targets.

Sails Lake

Airborne VTEM geophysical anomalies have been detected on the property. These anomalies are associated with known mineralization and host rocks typically associated with base metal massive sulphide-type deposits in the area. A number of these anomalies have coincident Mobile Metal Ion soil geochemical anomalies with them and as such will be the prime focus of drill testing in the upcoming program.

Plate modeling of airborne geophysical anomalies is complete and preliminary drill targets are defined. Historical results report both precious and base metal mineralization on the property. Precious metal results of surface gold samples in prospecting trenches report grab samples grading as high as 64.29 g/t Au and 14.52 g/t Au. Targets indicative of gold mineralization such as fault-shear zone, or fold structures, alteration and soil geochemical signatures are still being evaluated.

Base metal occurrences in surface and drill core samples of copper-zinc mineralization include an intercept of 0.55m grading 7.2% Zn, 0.12% Cu, 10.54 g/t Ag and 0.34 g/t Au in a drill hole adjacent to one of the conductors planned for drill testing this summer, and elevated zinc values in stringer sulphide mineralization elsewhere on the same  conductor.

Geologists are in the field through the first part of this summer, to re-examine the host rocks as to base and precious metal targets developed from the compilation of historical data. Several base metal targets are near final stages in their evaluation. The gold targets present a more difficult challenge as this type of mineralization does not readily show itself in geophysical surveys and the property has only limited rock exposure on which to prospect this type of mineralization. Geologists will be looking closely at the soil geochemical survey results and their association with known gold occurrences on the property to assist in locating gold mineralization buried under soil overburden.

Drilling at Sails Lake is expected in August, pending approval of permits.

The Sails Lake property is located approximately 10 km east of the past-producing Osborne Lake copper-zinc-gold-silver deposit and approximately 30 km east of the mining community of Snow Lake.

Morton Lake

A program consisting of ground truthing airborne geophysical targets and detailed mapping of mineralized trenches and favorable host rocks to base metal mineralization will be undertaken at the Morton Lake property. Mobile Metal Ion soil geochemical surveys will also be conducted over buried geophysical targets.

The property is underlain by felsic and mafic volcanic rocks that are similar in tectonic environment and chemistry to the host rocks for the past-producing Dickstone copper-zinc deposit.

The Company has recently added to its land position to the east and south of the original Morton Lake claims and now has a land position roughly 20 km in length covering mafic and felsic volcanic rocks similar to the rocks that host the Reed Lake Discovery Zone.

Leak Lake

Airborne VTEM anomalies have been identified on the property and subsequent Mobile Metal Ion geochemical surveys completed over these conductors. The results of the two surveys are being merged to evaluate the targets for possible drill testing.

Puella East

Airborne VTEM surveys have been completed and anomalous responses analyzed by Condor Geophysics of Denver, Colorado. The area is mostly covered by swamp and overburden which precludes detailed geologic mapping. The property was mapped in 2009 on a reconnaissance scale and geophysical anomalies placed into their geologic context, where possible. A winter Mobile Metal Ion survey will assess these conductors in terms of metal content in preparation for diamond drill testing.

Farwell Lake

Like the Puella East project, the Farwell Lake project area is overlain by wet organic overburden and post-volcanic dolomite cover. Airborne VTEM anomalies have been identified and Mobile Metal Ions surveys recently completed. Samples have been submitted for analysis and results will be integrated with geophysics and historic geologic observations from previous exploration programs. Drill targets will be assigned on the basis of these integrated datasets.

VMS Ventures Inc. is focused primarily on acquiring, exploring and developing copper-zinc-gold-silver massive sulphide deposits in the Flin Flon-Snow Lake VMS Belt of Manitoba. The Company’s VMS project property portfolio consists of the Reed Lake Project, Copper Project, McClarty Lake Project, Sails Lake Project, Puella Bay Project and Morton Lake Project. Outside of the Snow Lake camp, the Company holds massive sulphide prospective properties near the past producing Fox Lake and Ruttan copper-zinc mines, near the communities of Lynn Lake and Leaf Rapids in northern Manitoba. All VMS Ventures Inc. properties are located in the mining friendly province of Manitoba, Canada.


VTEM SURVEY AT RING OF FIRE

Posted by AP on Friday, 4 June, 2010

Melkior Resources Inc.Melkior Resources Inc.  announces the completion of an airborne VTEM electromagnetic and magnetic survey of its 100% owned Broke Back and Riverbank claim groups in Northern Ontario.  A total of 1765 line kilometres were flown at a cost of approximately $300,000.  The Broke Back group adjoins the main Noront claim block, it is located 7 kilometres north of the Noront Eagle One nickel discovery and approximately 6 kilometres northeast of the chromite property of Cliffs Natural Resources Inc.  Once Melkior has received airborne data it will be interpreted and used to direct the next stage of exploration.

Melkior has previously survey a total of 3902 line kilometres of airborne electromagnetic and magnetic on its other properties in the “Ring of Fire” area namely the East Rim and the West Rim properties.  The previous data has been interpreted and locations have been selected for followup and drilling.


The new Matagami-type VMS Camp

Posted by AP on Monday, 31 May, 2010
MacDonald Mines Exploration  has announced today that the 2010 exploration drilling program on its McNugget Property has discovered new volcanogenic massive sulphide (VMS) mineralization of substance. Preliminary assays are reported below with follow-up full assays pending and will be reported when received. An analysis of technical data completed in February 2010 found magnetic and electromagnetic (“EM”) targets that were not previously explained. During the May portion of the 2010 drilling campaign, a Crone Geophysicsdown-hole EM system was used for drill target control – it has been established that McNugget VMS horizons show strongest conductivity where copper (Cu) content is highest.
A new VMS camp with characteristics similar to those seen at Matagami or Noranda in Quebec is now conceivable (i.e., larger VMS deposits with satellite deposits along strike).”
Massive sulphides were intersected in all May 2010 drill locations with widths varying from 2m to greater then 30m. One of the drill sites (two holes) on the McNugget Property intersected massive magnetite as well as associated ultra mafic materials. This location is characterized by a long magnetic high (magnetite) with an associated electromagnetic conductor (VTEM). These characteristics are very similar to those of the Freewest/Cliffs chromite discovery. The core from these two intersections is currently being tested for chromite. Additonal geophysics will be planned along this long trend (1.5 kilometres) to aid in interpreting the potential of this zone to host chromite.
Big Mac Property
MacDonald’s February 2010 re-interpretation created an initial program of 5 high-priority high-resolution ground gravity survey transects for both chromium (Cr) and nickel-copper (Ni-Cu) mineralization. Transect models were based directly on known mineralization signatures discovered within the “Ring of Fire”. The Company’s claim block contains both discrete and strike-extensive coincident airborne magnetic-VTEM and gravity anomalies within stratigraphically favorable geological packages with geophysical signatures similar to the significant Cr discoveries of Freewest and KWG-Spider near McFaulds Lake. Three gravity drill targets all exhibited anomalous densities coincident with local magnetic trends and have been interpreted to be steeply plunging dense bodies. Drilling was completed on one these targets in April 2010. Assays are pending. One of the gravity transects identified a density anomaly coincident with a discrete conductivity (VTEM) anomaly and offset magnetic feature that will be drill investigated for nickel.
Hulbert-Salo Property Exhibits Voisey’s Bay-type Targets
MacDonald is designing an exploration program for its highly prospective Hulbert-Salo Property which appears to host an intact intrusive complex with potential for Voisey’s Bay-type targets, as interpreted by Dr. Larry Hulbert. The Company’s airborne geophysical survey (VTEM) outlined very conductive, discrete targets within a layered magnetic structure. The high conductivities observed are typical of magmatic massive sulphides containing nickel. To optimize the Company’s chances of success, a surface time domain geophysical survey is being designed that will focus on the potential nickel targets. A Crone Geophysics‘ system will be used in the event that other more conductive (superconductors) and/or deeper targets were not detected by the airborne survey.
Exploration to Recommence June 2010
The next phase of exploration will commence in late June 2010. MacDonald believes that there is potential for its James Bay properties to host both Nickel and Chrome on the McNugget, Big Mac and Hulbert/Salo Properties.
As the assays become available, 3D target modeling will be based on assays, geology, magnetic susceptibility, conductance and so forth. Further drilling will provide greater detail on three selected VMS targets as well as the strongest potential Ni-Cu targets. It is anticipated that deeper drilling will be required to test the high conductance targets mapped by the geophysical programs used during May.

Magnus Copper-Gold project update

Posted by AP on Tuesday, 25 May, 2010
Alchemy Resources Limited advises that the first round of exploration drilling at its Magnus Copper‐Gold Project in Western Australia has produced promising results which highlight the potential for the area to host repeats of Sandfire Resources Ltd’s neighbouring DeGrussa discovery.
The drilling program at Magnus, which is located 130km north‐east of Meekatharra, comprised seven reverse circulation (RC) holes on seven high priority targets that were identified by a VTEM survey completed in December 2009 (http://explorationgeophysics.info/?p=607). The first seven RC holes were selected across the width of the Magnus project to conduct initial testing of the high priority conductors identified by the VTEM survey and to assist with targeting the drilling of the remaining 26 priority conductor targets.
The initial drilling at Magnus has:
successfully identified extensive stratigraphic horizons within the prospective Narracoota volcanic formation with the potential to host volcanogenic massive sulfide (VMS) deposits. The Narracoota volcanic formation hosts the rich DeGrussa copper‐gold deposit; and
identified minor disseminated sulfides, which in conjunction with geochemical tests being done on bedrock samples, may help to uncover VMS mineralisation.
Down‐hole electromagnetic (DHEM) surveys were carried out in five of the RC drill holes. DHEM surveys are used to identify the source of any conductors that were not intersected in the hole by drilling.
In four of the RC drill holes, which intersected dominantly mafic volcanic and intrusive rocks with minor interflow shales, the source of the VTEM anomaly remains unexplained and will be followed up with further drilling to determine the source of the conductor. In the other three drill holes, intersections of thick intervals of shale are believed to explain the original VTEM anomaly.
Re‐modelling of the VTEM and DHEM data was carried out to better determine the geometry and conductivity of the sources of anomalies. These results, in conjunction with ground electromagnetic surveys, will refine the location of modelled conductors prior to further drill testing.
Forward Program
Ongoing drilling at Magnus will test up to another 26 bedrock conductors identified by the VTEM survey.  Other activities will include targeted ground‐based EM surveys to complement the VTEM survey and identify exploration targets at depth.
“These results are very encouraging and provide Alchemy with more strong evidence that Magnus hosts the geology associated with world‐class VMS deposits such as the DeGrussa discovery,” Alchemy Managing Director Michael Hannington said. “We will now push full‐steam ahead with the next phase of drilling at Magnus to test this enormous exploration potential.”


Success on Wabassi/Max property

Posted by AP on Thursday, 13 May, 2010

Northern Shield Resources Inc. The Wabassi and Max properties are located in northwestern Ontario, 60 km south of the Highbank Lake project and 100 km south of the Ring of Fire Ni-Cu-PGE and Chromite deposits. The properties are being explored for reef-hosted PGE and massive sulphide Ni-Cu-PGE deposits.

The Wabassi and Wabassi North properties were staked by Northern Shield Resources Inc. in 2007 based on the geophysical pattern observed on the magnetic survey published by the Ontario Geological Survey (OGS) in the Fort Hope area, which suggests a layered intrusion. Now four mafic-ultramafic intrusions are known to exist within the two properties.

WABASSI LAYERED INTRUSION
This is a layered mafic-ultramafic intrusion composed of olivine-gabbronorites and norites in the upper (northern) portion. To date, very little exploration has been conducted on the southern portion but it is now believed to represent the lower, and most prospective, levels of the intrusion.

WABASSI LAYERED INTRUSION
This is a layered mafic-ultramafic intrusion composed of olivine-gabbronorites and norites in the upper (northern) portion. To date, very little exploration has been conducted on the southern portion but it is now believed to represent the lower, and most prospective, levels of the intrusion.

WABASSI NORTH INTRUSION
Other than one drill hole, no other exploration has been conducted to date on the Wabassi North Property. Drilling intersected a variety of gabbroic rocks which may, or may not be related to the main Wabassi layered intrusion or the Max peridotite intrusion. The geophysics suggest that this body may consist of composite phases of gabbroic and other mafic/ultramafic phases.

MAX PERIDOTITE INTRUSION
Five drill-holes were completed on this target by Northern Shield in 2007 as part of an option agreement to earn a 50% interest in the property. The body is composed mostly of peridotite (harzburgite) and comprises the most primitive rocks intersected to date within the two properties. The body has high background levels of Ni-Cu-PGE. Geophysics suggests a possible feeder conduit between the Max peridotite and Wabassi North gabbro.

GABBROIC INTRUSION
An intrusion in the southern portion of the Max property (see figure above) has been mapped by the OGS as a gabbroic body, but no exploration has taken place to date on this portion of the Property.

WABASSI LAYERED INTRUSION
The Wabassi intrusion is a well-layered mafic-ultramafic complex with similarities to the Stillwater Complex in Montana, where PGEs are mined from the J-M reef. Rock-types so far identified include, olivine gabbronorites, olivine norites and norites; these are all ideal lithologies in nickel and PGE bearing systems. The intrusion is being explored for Ni-Cu-PGE massive sulphides along the contacts and in feeders, and for disseminated mineralization hosted in “reefs”.

Based on geophysical interpretations and surface sampling, the Wabassi layered intrusion appears to be composed of two districts series, the Cyclic Series and the Layered Series.

Ongoing studies and interpretation of the Wabassi intrusion have isolated two layered sequences that will also be prospected for disseminated reef-type PGE mineralization and chromite. Disseminated mineralization and chromite are not usually detected by airborne EM surveys.

A VTEM survey completed over the Wabassi property has detected three distinct clusters of electromagnetic (EM) anomalies (WAbassi A, B & C.) The strength of the conductors range from moderate to very strong and correspond to magnetic highs. One of the clusters of VTEM anomalies can be traced intermittently along a magnetic feature that has strike length of 2000 meters. The location and geometry of this body suggests it may represent a feeder conduit into the main Wabassi Intrusion. Feeder conduits are ideal hosts for Ni-Cu-(PGE) mineralization. Fragments of nickel-bearing pyrrhotite and blebs of primary nickel-copper mineralization were observed in core from a drill-hole completed in 2008 adjacent to one of the VTEM conductors.

One of the VTEM anomalies at Wabassi.

May 2010.

At the A2 anomaly (see Wabassi Target map on Northern Shield’s website), drill-hole 10WA-07 intersected 2.25% zinc (Zn), 31.7 g/t silver (0.92 oz/ton) and 0.17% copper over 49.5 meters, including a higher grade section of 7.07% Zn over 7 meters. Three sample intervals from this drill-hole also contained over 100 g/t silver including a 0.7 meter interval grading
536 g/t silver (15.66 oz/ton) and three other intervals contained over 12% Zn. Drill-holes 10WA-05 and 06, targeting the A1 anomalies, intersected pyrrhotite-dominated massive, semi-massive and disseminated sulphides containing copper, silver, zinc and nickel mineralization. Eighty-five of the one hundred and thirty-four samples assayed from drill-hole 10WA-05 assayed greater than 5g/t silver. Drill-hole 10WA-07 intersected volcanic rocks and volcanogenic massive sulphide (VMS) zinc-silver-copper mineralization adjacent to the contact with the Wabassi Intrusive Complex. Drill-holes 10WA-04 to 10WA-06 intersected rock types predominantly consisting of mafic and ultramafic lithologies belonging to the Wabassi Intrusive Complex. Drill-hole 10WA-05 intersected pyrrhotite-dominated massive, semi-massive and net-textured sulphides with a chemical signature suggesting
that it may be a hybrid mixing of VMS and magmatic (nickel-copper) systems. Drill-hole10WA-06 intersected disseminated copper sulphide mineralization.
Ground and down-hole EM surveys have been running contemporaneously with the drill program to provide better resolution of the conductive bodies discovered from the airborne VTEM magnetic and electromagnetic survey. Preliminary results from the ground and down-hole pulse electromagnetic surveys suggest that drill-hole 10WA-07 (zincrich) apparently has only intersected the edge of the A2 anomaly and that this target may be more extensive than previously thought.
Michael Senn, Executive Vice President of Discovery Harbour comments: “From the instant we saw the compelling geophysical signatures from the Wabassi VTEM survey and the geological interpretation that was compiled by the Northern Shield technical staff during PDAC, Discovery Harbour was convinced of the strong probability of success in the drill testing of these exciting targets.

Kodiak with new geophysical programs

Posted by AP on Thursday, 13 May, 2010

the company has exploration programs in place for five targets areas: Kaby Lake, Brenbar, Wild Goose, West Geraldton and Shields. At Kaby Lake, line cutting is in progress for a planned IP/mag survey to refine targets for additional drilling. Detailed VTEM has been completed at Brenbar in anticipation of additional groundwork and drilling this summer. Fifty six line kilometres of grid have been completed on the western extension of the West Geraldton project, an area covered with glacial debris; magnetic and IP surveys will commence shortly. A similar grid had also
been finished at Wild Goose with drilling scheduled to commence in June. Prospecting and surface sampling is expected to begin at the Shields property later this month as well.

Darnley’s exploration plans in progress

Posted by AP on Tuesday, 20 April, 2010

Darnley Bay Resources releases preliminary results from the recently completed Geotech VTEM and Sander AirGRAV surveys over a large portion of its properties near Paulatuk, NT. Darnley, with the assistance of Paterson, Grant & Watson Limited, consulting geophysicists of Toronto, Canada, has prepared a series of images and commentary from the field data, which will be downloaded from the Company’s website under the “Current Activities” heading on the home page (www.darnleybay.com) by the end of April. We stress that this material was prepared from the field data. The final data will have several standard processes applied by the contractors to make corrections, improve data resolution and remove topographic effects, level errors and noise. From these final data, 2D and 3D models will be prepared, and drill targets located and prioritized.

About the exploration of Paulatuk gravity anomaly:  http://explorationgeophysics.info/?s=darnley