Posts Tagged nickel

PLANS FOR NI-CU-PGE PROJECT IN SOUTHWEST GREENLAND

Posted by AP on Tuesday, 28 May, 2013

North American Nickel Inc. announces that it has finalized the 2013 exploration plan for its 100% owned Maniitsoq project. The program, which is scheduled to commence in mid-June, will consist of a minimum of 3,000 meters of diamond drilling to follow-up on 2012 discoveries and test new geological, geophysical and geochemical targets identified from a review of exploration datasets. Surface pulse time domain electromagnetic (PEM) surveys and 550 line-km of helicopter time domain, electromagnetic and magnetic surveying will also be undertaken in areas not covered in 2011 and 2012.

NAN CEO, Rick Mark states: “We expect this to be a busy, exciting and productive year at Maniitsoq. Our experience on the project for the last two years and particularly our camp/drilling experience last year has allowed us to ramp up for our planned $5,500,000 2013 program smoothly and efficiently. Chief Geologist John Pattison has been full time on the project since we left Greenland last September. COO Neil Richardson will accompany our expanded ground team to Maniitsoq in early June with drilling expected to begin on, or around, June 21, 2013. Target identification has been very successful, as we now have identified more than 100 targets for consideration at Maniitsoq.”

Key elements and objectives of the 2013 Maniitsoq program are as follows:

DIAMOND DRILLING

  • To explore along strike and down plunge of the high grade mineralized zones intersected by NAN in 2012 at Spotty Hill and Imiak Hill.(e.g.123.94 m @ 0.81% Ni, 0.21% Cu, 0.03% Co and 0.26 g/t PGM including 24.20 m @ 1.75% Ni, 0.34% Cu, 0.06% Co and 0.52 g/t PGM at Spotty Hill and 26.98 m @ 0.98% Ni, 0.44% Cu and 0.04% Co including 16.64 m @1.36% Ni, 0.52% Cu and 0.05% Co at Imiak Hill). For example, the attached longitudinal section (Figure 1) shows the planned pierce points for three holes designed to test the interpreted down plunge extension of intersections in holes MQ-12-001 and -002 at Imiak Hill last year.
  • To test new, high priority conductors identified by helicopter-borne time domain electromagnetic surveys flown by NAN in 2011 and 2012. Priority will be given to high conductivity targets associated with mafic-ultramafic rocks such as target P-63 (see NAN press release dated March 20, 2013 for details).
  • Three-component bore hole electromagnetic (BHEM) surveys will be undertaken to increase the effective search radius of the hole. In cases where a hole has intersected conductive mineralization, the BHEM data can help determine its orientation. In cases where a hole fails to intersect a target conductor, the BHEM data can often provide more precise information on the direction to the conductor which allows the geologist to design a more accurate follow-up hole to intersect the target.

FIELD CHECKING OF POTENTIAL DRILL TARGETS

  • Over the winter NAN’s exploration team combed through all available exploration data from the project area. As a result, the inventory of potential targets has increased to over one hundred (Figure 2). To date less than 40 of these have been checked in the field. This year a four person team will be dedicated to checking as many of the other targets as possible.
  • The field checking will consist of prospecting, rock sampling and in some cases channel sampling and/or geological mapping.

SURFACE PULSE TIME DOMAIN ELECTROMAGNETIC (PEM) SURVEYS

  • Focused PEM surveys will be done over selected targets where further detail is required. The PEM system may also be used to test geophysical and geological hypotheses prior to drilling.

HELICOPTER TIME DOMAIN ELECTROMAGNETIC AND MAGNETIC SURVEYS

  • The surveys will be flown over several small blocks that cover areas of geological interest outside the main Greenland Norite Belt and in areas recently acquired by North American Nickel.

The 2013 exploration program will be conducted from a field camp situated within the project area. The camp logistics will be supplied by Xploration Services Greenland ApS of Nuuk who will also provide general expediting and support to the project. Westcore Drilling Ltd of Salmo, British Columbia will perform the diamond drilling and Crone Geophysics & Exploration Ltd. of Mississauga, Ontario will conduct the BHEM and surface PEM surveys. All of these contractors are experts in their respective fields.

To view the maps associated with this release, please visit the following link: http://media3.marketwire.com/docs/n528nan1.pdf.


Ni-Cu sulphide exploration target in a recent airborne EM in Australia

Posted by AP on Thursday, 11 April, 2013

Cassini Resources (ASX: CZI) has defined a large scale high priority nickel-copper sulphide exploration target in a recent versatile time domain electromagnetic (VTEM) geophysical survey over its West Musgrave Project in Western Australia. Source..


The company believes the West Musgrave Project has the potential to host another large nickel-copper sulphide deposit such as BHP Billiton’s nearby 1.66 million tonne copper equivalent Nebo‐Babel deposit.

The target at West Musgrave is defined by a strong electromagnetic anomaly occurring over a strike length of about 600 metres.

The electromagnetic anomaly coincides with a dipolar total magnetic intensity anomaly.

Magmatic nickel sulphide deposits are usually highly conductive, and are often hosted by mafic and ultramafic rocks containing the magnetic iron oxide mineral, magnetite.

Cassini has begun planning and permitting for an on‐ground electromagnetic survey which will assist in defining higher order conductors and help to prioritise subsequent drill program targets.

The Musgrave is a poorly explored province currently experiencing aggressive exploration expenditure following the discovery of BHPB’s Nebo and Babel nickel-copper-PGE sulphide deposits. Beadell Resources’ “Handpump” project has seen the first intersections of economic gold mineralisation in the Musgrave.

The tenements are prospective for nickel, copper, Platinum Group Element’s (PGE), gold and iron.

Many of the gravity and magnetic anomalies identified by majors BHP Billiton and Anglo Australian are located on the project. None of these have been tested by drilling. Cassini looks forward to commencing exploration or partnership opportunities on successful grant of the tenements.


The new discovery on Sugar Zone Property (Ontario)

Posted by AP on Monday, 1 April, 2013

HARTE GOLD CORP. provides an update of current operations at the Sugar Zone Property.

VTEM Target Drilling

Harte Gold has completed a four hole diamond drill program on the Ni-Cu VTEM anomaly located at the north end of the Dayhossarah lake on Harte Gold’s Sugar Zone Property.

The drilling discovered a broad zone of semi massive to massive sulphides in Komatiites with intersections up to 160 metres in thickness with primarily pyrite and pyrrhotite.

Assays of the drill core contained minor amounts of nickel, copper, platinum and palladium. Some higher grade intersections of magnesium were discovered running up to 11% Mg and were associated with biotite schists. No further work will be done on this target at this time.

“The VTEM Survey clearly outlined an area of massive sulphides that was proven with the drilling,” said Stephen G. Roman, Harte Gold’s President & CEO. “Now we need to test the other VTEM targets we have generated with our 2012 survey, to potentially discover new areas of economic mineralization on the Sugar Zone Property.”

Sugar Zone Deposit Bulk Sample Update

Harte Gold is pleased to announce the Ministry of Northern Development and Mines has accepted and filed its Closure Plan for the 70,000 tonne bulk sample. Harte Gold is proceeding with other permitting work associated with site preparation and underground development and looks forward to moving forward with this project.

Harte Gold is currently conducting a 1,500 metre seven (7) diamond drill hole program to establish 35 metre pierce points and confirm the grade in the bulk sample area. Assay results will follow.

http://www.hartegold.com/wpress/wp-content/uploads/2013/03/2013-02-27-March-2013-Final.pdf


Down Hole Geophysics Confirms Significant Conductor at New Morning in Western Australia

Posted by AP on Saturday, 2 February, 2013

Western Areas Ltd provides an update from ongoing exploration activities at the new high grade discovery at New Morning, within the company’s

flagship Forrestania Nickel Operation.

Highlights

  • Assays have confirmed and extended the high grade discovery increasing the initial Niton estimate of 2.7m at 5.5% nickel to 3.0m at 6.3% nickel, including 2.4m at 7.6% nickel;
  • A down hole electro-magnetics survey (DHEM) has confirmed the company’s initial expectation that the high grade discovery hole has only intersected the edge of the mineralised zone with initial modelling indicating a plate approximately 150m x 250m wide; and
  • Forward work program being rapidly defined – initial steps to expand the discovery will see an immediate second drill hole commenced from the parent hole, targeted towards the centre of the modelled DHEM plate, followed by further DHEM tests to further refine targeting.

Western Areas Managing Director, Dan Lougher, said the Company was eager to follow up the recent geophysics and high grade assays with a sustained drilling program.

“We have previously stated that we believe the 6km between our two high grade mines of Spotted Quoll and Flying Fox are the most prospective for identifying a new high grade nickel deposit. Whilst drilling is still at an early stage, it is pleasing for the entire team to see the strategy starting to deliver results,” said Mr Lougher.

“The Forrestania Nickel Operation is a fully developed brownfields site, with power, water, roads and associated infrastructure all located along the prospective 6km belt meaning that any new deposit can be turned into an operating mine quicker and cheaper than any new greenfield discovery.

“We look forward to providing the market with updates as we continue drilling at New Morning,” said Mr Lougher.

Assays

Assays have now been received and have confirmed the high grade nature of the intercept, with improved intersection length and grade from the Niton measurements previously announced. NMD177 now measures 3.0m at 6.3% nickel, including 2.4m at 7.6% nickel. Deleterious elements (principally arsenic) are very low, and similar to the levels seen at Flying Fox.

Down Hole Electro-Magnetics

A DHEM test has been conducted on the lower portion of NMD177 with Newexco implementing the geophysical survey. The initial interpretation of the data by Western Areas’ exploration staff and Newexco indicates that a significant off-hole conductor exists to the south and slightly higher than the intersection announced. Whilst it is difficult to define the extent of the conductor from one hole, modelling of the DHEM data indicates a plate of approximately 150m by 250m. The DHEM data also indicates the current drill hole has not intersected the central portion of the plate, confirming our expectation that we may have only intersected the edge of this discovery.

The New Morning deposit is a medium grade nickel deposit, lying between the high grade Flying Fox and Spotted Quoll deposits.

The company believes that the potential for further Flying Fox or Spotted Quoll style mineralisation in this area is high, and significant exploration resources have been devoted to testing this area.


High-Grade Massive Sulphide Intervals at Ntaka Hill in Tanzania

Posted by AP on Thursday, 20 December, 2012

IMX Resources Limited -

Highlights from drilling at Sleeping Giant at the Ntaka Hill Nickel Sulphide Project

  • Significant new intersections on Sleeping Giant zone, including:
    • 50m at 1.10% Ni and 0.22% Cu from 340m, including 11.45m at 2.87% Ni and 0.52% Cu from 378.55m and 1.25m at 16.30% Ni and 2.92% copper from 378.55m
    • 17m at 1.25% Ni and 0.21% Cu from 303m
    • 50m at 0.57% Ni and 0.10% Cu from 376m
    • 33.7m at 0.61% Ni and 0.12% Cu from 21.3m
  • Additional wide near surface disseminated hanging wall mineralisation intersections, including:
    • 101m at 0.40% Ni and 0.09% Cu from 24m
    • 59m at 0.49% Ni and 0.11% Cu from 169m
  • Significant new footwall intersections, including:
    • 23m at 1.35% Ni and 0.24% Cu from 235m
    • 18m at 1.17% Ni and 0.27% Cu from 293m including 11m at 1.71% Ni and 0.40% Cu from 299m
  • North-end of Sleeping Giant zone now interpreted to connect with L Zone with a new intersection of 33.7m at 0.61% Ni and 0.12% Cu from 21.3m, as above.

In September 2012 IMX Resources Limited reports the identification of twenty-five new high priority VTEM anomalies from the recently completed airborne magnetic and versatile time-domain electromagnetic (VTEM) survey over selected areas within the Nachingwea Nickel-Copper JV Project located in southeast Tanzania.

More..

Ntaka Details: http://www.imxresources.com.au/_content/documents/1246.pdf


Airborne and borehole geophysics in Greenland

Posted by AP on Friday, 21 September, 2012

North American Nickel Inc. reports that it has completed its first drill campaign at its 100% owned Maniitsoq project. Drilling commenced on August 26 and was completed on September 16. Nine diamond drill holes totalling 1,550 metres were drilled.

All nine holes have been logged and all mineralized intersections have been sampled. A total of 531 samples have been collected for assay. The samples are now on their way to Activation Laboratories for analysis and results are expected in four to eight weeks.

The holes tested electromagnetic (EM) anomalies associated with noritic rocks and nickel sulphide showings. The anomalies were outlined by SkyTEM and VTEM helicopter-borne, time domain, EM surveys flown by the company in 2011 and 2012. Crone Geophysics Ltd of Mississauga, Ontario surveyed eight of the holes with their 3-component borehole pulse EM (BHEM) system. Preliminary analysis has been completed and final analysis will be done before assay results are received.

Results from the drilling and BHEM surveys will be merged with the Company’s existing exploration database which will allow the NAN geological team to finalize its plans for the 2013 drill season at Maniitsoq.

The Maniitsoq property in Greenland is a district scale project. It comprises a 4,983 square km mineral exploration licence covering numerous high-grade nickel-copper sulphide occurrences associated with norite and other mafic-ultramafic intrusions. The 70km plus long belt is situated along, and near, the southwest coast of Greenland, which is ice free year round. The Maniitsoq area is underlain predominantly by highly deformed and metamorphosed Archean gneisses. Supracrustal rocks comprise about 10% of the area and consist mainly of amphibolite (metamorphosed and deformed volcano-sedimentary sequences). Most of the nickel discovered to date is associated with younger, undeformed norite intrusions that are concentrated in (but not restricted to) a 15 km wide by 75 km long “J”-shaped belt, referred to as the Greenland Norite Belt (GNB), that rims a large, complex known as the Finnefjeld gneiss complex.


Airborne EM Anomalies Confirmed by Drilling in Western Australia

Posted by AP on Friday, 7 September, 2012
Rox Resources Limited reports the results from Rotary Air Blast (RAB) and Aircore (AC) drilling completed in July 2012 at the Mt Fisher gold-nickel project, 220km north of Leonora in Western Australia.
The 6,517m drilling program, consisting of 85 RAB and 48 AC holes, was designed to test a combination of regional structural and geophysical targets under cover, as well as some strong geochemical gold anomalies.
Rox Managing Director, Mr Ian Mulholland commented on the results, saying that it was encouraging to extend the Dam and Dirks anomalies further, and to also identify a strong nickel sulphide target where there had been no previous drilling.
AC drilling at Fisher East targeted both gold and nickel mineralisation on the NW-SE trending, east-dipping mafic-ultramafic greenstone belt. This included two 1km and 1.7km traverses of 80m spaced angled drill holes across the entire width of the belt where no drilling had been completed previously.
This drilling successfully confirmed prospective ultramafic margins and located several nickel-copper geochemical anomalies. One of the anomalies corresponds with a VTEM conductor and presents a strong target for nickel sulphide mineralisation at depth to be tested with RC drilling.
“We’ve got a number of strong gold targets still to follow up at Mt Fisher, and our belief that the Mt Fisher Greenstone belt has the potential to host at least a million ounces is still strong. In addition, the nickel sulphide target is intriguing, with the geochemical anomaly lying over the VTEM anomaly in a good geological position”, Mr Mulholland said.
AC drilling at the Dirks Prospect intersected mineralisation in MFAC001 (4m @ 0.54g/t Au from 54m, and 5m @ 0.25g/t from 76m to EOH) and MFAC004 (8m @ 0.40g/t from 48m). This line of infill drilling is located approximately 180m north of mineralisation in MFA254 (2m @ 13.7g/t Au from 54m). The results show that mineralisation at Dirks is continuous along strike, and RC drilling is being designed to test this anomaly at depth.

RAB drilling at Dam South was designed to broadly test a series of VTEM anomalies situated along strike from mineralisation to the north. Significant gold assays returned included 12m @ 0.24g/t Au from 44m in hole MFRB037, and 4m @ 0.27g/t Au from 16m in hole MFRB043. These results confirm the potential source of the VTEM anomaly and warrant further drill testing.

Read more..

Mt Fisher Gold Project (100%)
Rox has acquired a 615 km2 tenement package which dominates the highly prospective Mt Fisher Greenstone Belt, 40km to the east of the prolific Yandal greenstone belt and 100km east of the main Wiluna greenstone belt.
Rox has an Option to acquire a further area of 170 km2, including the Mt Fisher gold mine which has previously produced 30,000 ounces of gold, and shares similar geological characteristics with neighbouring greenstone belts that host several multi-million ounce gold deposits. Much of the Mt Fisher Greenstone Belt remains significantly under-explored and Rox is focusing on a number of options to establish near-term gold production at Mt Fisher.

The New Potential Ni-Cu targets in Tanzania

Posted by AP on Friday, 7 September, 2012
IMX Resources Limited reports the identification of twenty-five new high priority VTEM anomalies from the recently completed airborne magnetic and versatile time-domain electromagnetic (VTEM) survey over selected areas within the Nachingwea Nickel-Copper JV Project located in southeast Tanzania.
The delineation of multiple late time EM anomalies further enhances the regional prospectivity of the Nachingwea JV property. Of potential significance is the identification of a high amplitude late time EM anomaly coincident with the Hog gold prospect, where surface gossan sampling returned values of up to 4.96 g/t Au and 0.64% Cu (ASX: May 28, 2012).
Patricia Tirschmann, VP Exploration, commented: “We are pleased to have completed another successful regional VTEM survey and are very encouraged by the number of high quality targets generated. The identification of an EM anomaly coincident with the Hog gold prospect further enhances the exploration potential of this target and we look forward to drill testing it and other high priority targets beginning in September.”
The airborne geophysical survey was carried out by Geotech Limited of South Africa employing the Versatile Time-Domain Electromagnetic (VTEM) geophysical system. The survey ran from July 29th to August 11th and a total of 2,409 kilometers were flown in five flight blocks.
The flight blocks comprising the 2012 airborne VTEM survey were selected by prioritizing areas based on results of the 2010 airborne magnetic and radiometric survey in combination with results of geochemical sampling and geological mapping. Preliminary data from the new VTEM survey is currently being evaluated, and targets are being selected for ground follow-up in order to help prioritize anomalies for drill testing later in the year.
Analysis of the preliminary VTEM data indicates that EM anomalies have been detected on each of the five flight blocks and approximately twenty-five of these represent high priority anomalies with late channel responses. Of potential significance is a high amplitude late time EM anomaly detected on three 200 metre spaced flight lines which is coincident with the Hog gold prospect where surface gossan grab samples returned values of up to 4.96 g/t gold and 0.64% copper (May 25, 2012 Press Release). Several other VTEM anomalies are also confirmed to have coincident copper and/or nickel in soil anomalies.
The Company plans to carry out 1,500-2,000 metres of reverse circulation drilling to test selected high priority regional VTEM and geochemical anomalies including the Hog gold prospect. This drilling is currently expected to begin in mid-September.

Exploration activity at Nachingwea has identified several zones of nickel sulphide mineralisation, at Ntaka Hill, where a combined Measured and Indicated Resource of 12.79 million tonnes (Mt) grading 1.21% Ni (using a 0.2% Ni cut-off) has been announced. The resource equates to an estimated 154,700 tonnes of contained nickel.

In addition, an Inferred Mineral Resource of 45.04Mt @ 0.3% Ni (using a 0.2% Ni cut-off) has been identified at Ntaka Hill.

A positive scoping study for an open pit mining operation means that the Nachingwea project is now advancing towards a potential production commencement date in 2015.

Read more..


Maniitsoq Ni-Cu-PGE Project, Southwest Greenland

Posted by AP on Tuesday, 26 June, 2012

North American Nickel Inc.  announces that field operations have now begun at its 100% owned Maniitsoq project in southwest Greenland.

A helicopter-borne, Versatile Time-Domain EM (VTEM) survey commenced last week and is being conducted by Geotech Ltd. of Aurora, Ontario. The survey is focused on the highly prospective Greenland Norite Belt (GNB) where historical drilling intersected high grade nickel sulphide mineralization (e.g. 9.85 m of sulphide mineralization averaging 2.67% Ni and 0.60% Cu in drill hole Im-9).

North American Nickel CEO, Rick Mark, states, “I am very pleased to see exploration begin at Maniitsoq. We have experienced some delays this month due to logistic and technical issues, but, the helicopter is now on the job. Our flying program last year showed that modern technology works in the GNB. We are all looking forward to more targets being defined and starting our initial drill campaign later this summer.”

The survey will total over 3,000 line-kilometres and, together with last year’s SkyTEM survey, will provide near complete helicopter TEM coverage of the entire GNB within the company’s land holdings. Surveying will also be done over selected targets outside the main GNB.

Electromagnetic anomalies detected by the 2012 VTEM survey together with those identified by last fall’s SkyTEM survey will be field checked and the highest priority ones will be drilled later this summer. Drilling is now expected to begin in mid-August.

More details on Maniitsoq, and other North American Nickel projects, may be found on the company’s website www.northamericannickel.com.

Qualified Person


Ground Gravity Survey on Butler in the Ring of Fire

Posted by AP on Saturday, 18 February, 2012

MacDonald Mines Exploration Ltd. announces the mobilization of a geophysical crew to begin a ground gravity survey over the Company’s VMS, Ni and Cr targets on the Butler Property in the Ring of Fire.

The recently released Ontario Geological Survey (“OGS”) and Geological Survey of Canada (“GSC”) gravity gradiometer data over the Ring of Fire has been the catalyst for the Company’s renewed interest in the gravity technique as a proven exploration tool for identifying density variations associated with mineralization such as VMS, Ni and Cr.  The conclusion of the OGS/GSC gravity gradiometer survey was that it was probable that gravity highs were defining the package of mafic and ultramafic intrusive and volcanic rocks which host the chromite mineralization.

The measurement of gravity is an effective technique for defining geometry, structure, and a proven tool in mapping intrusions in sedimentary and volcanic terrains. Alteration can also be mapped where geological units of different density are offset and/or altered. The use of ground gravity surveys, have historical success in the  search for volcanogenic massive sulphide (VMS) deposits and has been attributed to the discovery of the Sunridge Gold Embra Derho deposit in early 2007 (Approx 62.5 m/tonnes) as well as satellite discoveries at Nevsun’s Bisha  (Approx 40 m/tonnes) both in Eritea.

The Company initiated a detailed interpretation of the available public data over the known economic discoveries in the Ring a Fire (Cliffs Natural Resources, Noront Resources, etc.).  Part of this process was the development of models for chrome and nickel. The models consist of geochemical, lithological and geophysical signatures. The attributes of the known discoveries in the area were compared to targets both on both our Butler and Sanderson properties with strong correlations.

The gravity data collected over the Butler property by the OGS – GSC gravity survey confirmed the Company’s interpretation of a large mafic – ultramafic package exists along the eastern portion of the property.  The Company has drilled through and into some of the magmatic features to corroborate this interpretation.   In 2011 drill hole V05 drilled through a mafic sill consisting of an upper portion made up of magnetite gabbros, magnetiites,  and troctolites  passing downward into Fe-rich peridotites with high background chrome concentrations. The hole was terminated in peridotites so the proportion of ultramafic materials in these sills is at least equal to or greater than the mafic material. Dr. Hulbert concludes that “The observed footwall ultramafic association to the overlying gabbroic rocks and the property wide distribution of these gabbroic bodies suggests property wide favorability for ultramafic bodies which host Ni-Cu-PGE and chrome deposits.“


Butler Project – Exploration Overview with Geophysics

Posted by AP on Tuesday, 14 February, 2012

MacDonald Mines Exploration Ltd. provides an exploration update in the mineral-rich Ring of Fire region of the James Bay Lowlands.

MacDonald began exploring in the Ring of Fire starting in 2003, shortly after the first volcanogenic massive sulphide (VMS) discovery at McFaulds Lake by Spider Resources and KWG Resources. The McFaulds VMS discovery is characterized by very high-grade intersections of VMS mineralization (McF-04-57 intersected 18.8 meters of 8.02% Copper (Cu), Mc-03-18 averaged 4.83% Zinc (Zn) over 25.75 meters) and at 250 meter-plus depths.

Exploration in the James Bay Lowlands is challenging due to the area being almost entirely a wetland. As a result, there is minimal outcrop, helicopter support is required and exploration time lines are longer. Over $18 million dollars has been spent to date on the Butler property and we have discovered six zones of multi-element mineralization with copper-zinc VMS systems, vandiferous titano-magnetite and magmatic nickel sulphide. This was accomplished through comprehensive exploration programs including geophysics, diamond drill holes and geochemistry.

Magnetic map (TF) of the Butler Property showing the location of identified multi-element, mineralized zones.

The lack of outcrop requires that a significant amount of attention and detail has to be paid to the geophysical techniques used in the area. Historically the programs focused on shallow targets; however down-hole surveys, ground magnetic and gravity surveys have indicated that the potential deposit(s) of interest lies deeper in the structural sequence.

A comprehensive suite of geophysical tools has applied at Butler:

Airborne EM, Magnetics & Gravity

  • 2004 VTEM – 2138.9 line kilometers of data were collected
  • 2008 VTEM – 1325.6 line kilometers of data were collected
  • 2010 AeroTEM IV – 261 line kilometers of data were collected
  • 2011 HeliGeoTEM – 261 line kilometers of data were collected
  • OGS/GSC Airborne Gravity Gradiometer

Surface EM

  • Butler 1 – 13 line kilometers of data were collected
  • Butler 3 – 39.3 line kilometers of data were collected
  • Butler 5 – 12.5 line kilometers of data were collected
  • Butler 3, 5, 6, and 7 – 30.17 line kilometers of data were collected

Surface Magnetics

  • 7 Ground Magnetic surveys completed in 2011 covering 81.1 line kilometers

Down hole EM

  • 64 diamond drill holes probed and modeled

The Company is currently enhancing the geophysical model to include the geochemistry data results. Collectively, all of the above geophysical results have consistently shown that an electrically conductive unit with magnetic properties and high density lies below those prospective zones.  These are the characteristics expected from a sulphide rich zone.

Magnetic map (TF) of the Butler 3 area showing the location of the EM target and magnetic susceptibility anomaly

MacDonald’s upcoming drill program will focus on the Butler property: Prior to drilling, the targets will first be refined using a deep penetrating geophysical method, similar to that used to detect the HudBay – Lalor deposit at Snow Lake, Manitoba.


Three High Priority EM Targets on Greenland project

Posted by AP on Tuesday, 31 January, 2012

North American Nickel Inc. announce that the three-dimensional modelling of SkyTEM helicopter time domain electromagnetic (EM) data collected last fall over parts of its Maniitsoq project in southwest Greenland is complete and has identified three high priority targets for follow-up this summer. Details on each are discussed in the sections below.

Highlights:

  • Target B1-L – modeled as a 330 x 100 m flat-lying conductor located 160 m below surface within a norite intrusion. The conductor is untested but past shallow drilling 100 to 150 m above the conductor intersected weakly disseminated, nickeliferous sulphides grading up to 0.52% Ni and 0.26% Cu over 12.94 m, demonstrating that mineralizing processes were at work in the intrusion.
  • Target B1-B – 700 m long, untested, near surface conductive zone. The characteristics and orientation of the conductor vary considerably along strike suggesting it is not formational. Magnetic data suggests that it is hosted in a large (2.5 x 1.0 km) norite body.
  • Target B1-J – 170 m long by 16 m wide conductor that comes to surface and is directly coincident with the Imiak Hill showing, the most significant nickel occurrence discovered to date in our Maniitsoq licence area. The model shows that the Imiak Hill mineralization strikes parallel to most of the historical drilling and therefore has not been properly tested. The model has very limited dip extent (21 m), but the best intersection on the showing (9.85 m averaging 2.67% Ni and 0.60% Cu) occurs 130 m below surface indicating that strong mineralization at surface is masking mineralization at depth.

North American Nickel CEO Rick Mark states: “The Maniitsoq project is progressing remarkably well. Our primary objective in 2011 was to employ today’s airborne EM survey technology in this highly prospective nickel belt. Fifteen years ago Falconbridge and Cominco used fixed wing aircraft and the technology of the day searching for conductive bodies to indicate drill targets. It simply didn’t work. After flying only 8% of our Maniitsoq license, we have proven that modern helicopter EM is much more effective than previous techniques used in this 75 km long belt of nickeliferous norites. Today’s release describes, in detail, the first three targets we have identified in this potential nickel camp.”

Background

As described in NAN news releases dated December 6 and 8, 2011, SkyTEM helicopter EM and magnetic surveys flown over two flight blocks covering approximately 8% of the 4,841 km2 Maniitsoq project, detected twenty five anomalous target zones. The location of the project and the flight blocks are shown in figures 1 and 2.

The purpose of the EM modeling discussed in this news release was to determine the characteristics of the anomalies in three dimensions in preparation for follow-up prospecting and drilling. All three high priority targets are located within flight block 1.

Target B1-L

The target corresponds to the Spotty Hill showing, which consists of weak (<1 to 2%) disseminated sulphide mineralization in a lenticular exposure of norite roughly 400 m long and 150 m wide. It was discovered in the early 1960′s by Kyrolitselskabet Øresund A/S who tested it with five very shallow (<60 m long) holes. All five intersected norite with weak, disseminated, nickeliferous sulphide mineralization. The best intersection was 12.94 m averaging 0.52% Ni and 0.26% Cu in norite containing about 5% sulphide.

The SkyTEM survey detected a moderate strength EM anomaly directly over the showing. Modeling indicates that the anomaly is produced by a flat-lying conductor, approximately 330 m long by 100 m wide, located at a depth of 160 m below surface, which is over 100 m below the deepest hole on the showing (figures 4 and 5).

Target B1-B

This target was modeled as a series of six conductive plates ranging in thickness from 9 to 43 m that occur over a distance of about 700 m. In Figure 6 it can be seen that the strike and dip of the plates vary considerably along the length of the target suggesting that it is not a simple stratigraphic conductor. It should be noted that the plates in Figure 6 have been truncated along their strike length in order to show their orientations more clearly. In most cases the plates actually overlap along strike; although the large gap in the middle of the target does appear to be real.

The target is situated within a 2.5 km by 1.0 km magnetic feature interpreted to be a norite intrusion. Some of the model plates come very close to surface and it may be possible to determine the source of the anomaly through surface prospecting which will be carried out this season.

Target B1-J

This target corresponds to the Imiak Hill showing and models as a 172 m long by 16 m thick plate that comes to surface and has a depth extent of just 21 m (figures 7 and 8). Clearly, the mineralization continues well below 21 m as evidenced by hole Im-9, which intersected 9.85 m of massive to semi-massive sulphide averaging 2.67% Ni and 0.60% Cu at a depth of 130 m vertically below surface. It therefore appears that highly conductive material at surface is masking responses from deeper mineralization, which is to be expected. The modeling results are significant, however, in that they show that most of previous drilling at Imiak was oriented parallel to strike and that, despite the numerous shallow drill holes, many of which intersected significant mineralization (see table in Figure 8), the zone has not been properly tested. Two or three holes oriented perpendicular to strike followed by down-hole 3-component EM surveying is required to get a better interpretation of the potential of this zone.

http://media3.marketwire.com/docs/NAN_figures.pdf


New discovery of sulphides at St. Stephen project

Posted by AP on Sunday, 29 January, 2012

St. Stephen Ni project in New Brunswick, Canada: discovered new nickel-copper sulphide zones while drill testing EM anomalies.

Continental Nickel Limited announces the assay results from its 2011 drilling program on the St. Stephen Nickel-Copper project in New Brunswick which have confirmed the discovery of new nickel-copper sulphide mineralization. Highlights include: 2.35% nickel and 1.06% copper over 5.45 metres from drill hole SSD11-013 at the new Hanson Brook target, and 0.68% nickel and 0.41% copper over 58.2 metres, including 0.85% nickel and 0.48% copper over 20.8 metres from drill hole SSD11-011 at G zone.

The Company commenced a diamond drilling program in early December to test new electromagnetic (“EM”) targets identified in the 2011 airborne EM survey and to further test nickel-copper mineralization intersected in 2010 in the St. Stephen intrusion. Five drill holes totalling 772 metres were completed in December and borehole electromagnetic surveys (“BHEM”) were also carried out in each of the holes. The drilling program was suspended on December 15th due to wet ground conditions and resumed on January 17th. Assay results are reported herein for the five completed holes (see Table I below). A location figure may be viewed using the link provided with this release.

Patricia Tirschmann, VP Exploration of Continental Nickel Limited, commented “We are very encouraged by the recent drilling results, particularly the new nickel-copper sulphide discovery at Hanson Brook and the expansion of mineralization at G zone, both located along the western side of the St. Stephen intrusion. EM geophysical surveys and drilling are proving very effective at identifying new mineralization and we look forward to both evaluating the new discoveries and to testing additional new targets. St Stephen is shaping up to be a high quality exploration project which complements our flagship Nachingwea Project in Tanzania.”

In 2010, the Company reported the discovery of new nickel-copper sulphide zones while drill testing EM anomalies at the Triple J and G targets.

Hanson Brook Target

One hole, SSD11-013, was drilled to test a new airborne EM anomaly located 350 metres northwest of SSD10-003 (G Zone). SSD11-013 intersected a zone of massive sulphides grading 2.35% nickel and 1.06% copper over 5.45 metres from 45.5 to 50.95 metres. The sulphides are hosted in metasedimentary rocks and are interpreted to be remobilized from the mafic rocks of the St. Stephen intrusion. BHEM data indicates that the conductor was intersected near its southern edge and additional drilling is planned to further test the Hanson Brook Target.

Todd Mountain Target

Two holes, SSD11-014 and SSD11-015, were drilled to test a new, >1 kilometre long airborne EM anomaly located in the south-western portion of the St. Stephen intrusion where no previous drilling has been carried out. SSD11-014 was drilled near the southern extent of the airborne EM anomaly and hole SSD11-015 was drilled near the northern extent. Both holes intersected intrusive gabbroic rocks but failed to intersect an EM conductor and did not return any significant assays. Borehole EM surveys were conducted and strong off-hole anomalies were detected in the immediate vicinity of both holes. The BHEM results indicate the presence of multiple conductors and complex geometry when compared to the airborne EM data. Additional drilling is planned to more fully test the Todd Mountain target.

http://media3.marketwire.com/docs/CNI2501map.pdf

Canadian Mining Journal


Ring of Fire – continued exploration

Posted by AP on Wednesday, 18 January, 2012

Bold Ventures Inc.  announces that a National Instrument 43-101 (“NI-43-101″) Technical Report (the “Bold Technical Report”) has been completed for Bold’s Ring of Fire Claims located in the northeastern portion of the Ring of Fire Area, northeast of Webequie, Ontario. The Bold Technical Report was completed by John C. Archibald, B.Sc. (Hons.) Geol., P.Geo. (“Archibald”) of Toronto, Ontario. .

Bold holds 46 claims (five groups of claims being 52, 53, 54, 55 and 56, totalling 677 claim units comprising approx. 10,832 ha.) covering high-potential airborne geophysical anomalies. The project area lies west of the Hudson Bay Paleozoic platform covering the eastern edge of the Oxford Stull Domain of the North Caribou Superterrane in the Attawapiskat First Nations (“AFN”) and Kasabonika Lake First Nations (“KLFN”) area of Ontario within the Mining Districts of Porcupine and Thunder Bay. The Bold claims are strategically located to the northeast of the main Ring of Fire structure that hosts a number of Ni-Cu-PGE MMS deposits, Cu-Zn-Pb VMS deposits as well as Cr and Fe-Ti-V magmatic oxide deposits. Prior to staking properties in this area, Bold evaluated public domain airborne Magnetic and Electromagnetic surveys that had been conducted within the main Ring of Fire structure. Since it appeared that the regional geology as defined by airborne magnetic interpretation extended as a large acuate structure and some of these structures may have influence beyond the actual Ring of Fire, Bold’s management determined this ground had potential for hosting VMS and MMS sulphide deposits. The idea was to follow-up on airborne anomalies such as that done on the Noront Resources Ltd. ground around the Ring of Fire and drill-test a number of conductors that showed high magnetic responses as well as coincident electromagnetic conductances mirroring the targets that were found at the Eagle-One, AT-12 Ni-Cu and Black Thor style chromite deposits found by Freewest Resources Canada Inc. Bold commissioned Geotech Ltd. to fly a number of their claim groups using airborne geophysics (Magnetic and VTEM-Electromagnetics).

Scott Hogg & Associates Ltd. analyzed the airborne survey results provided by Geotech Ltd., and selected at least 23 high priority anomalies on the five groups of claims. Dr. James Mungall’s two Interpretive Reports recommended diamond drilling on 12 of these anomalies for 1,760 meters to determine if the anomalies represent bedrock conductors caused by sulphide bodies that might indicate VMS or MMS type mineralized deposits.

Based on the interpretations by Scott Hogg & Associates Ltd. and Dr. James Mungall, a Phase 1 and 2 diamond drill program is recommended to test the top-12 geophysical anomalies on the five claim groups located in the KLFN and AFN Territories. The anticipated cost for this program which includes 12 drill-holes for 1,760 meters of diamond drilling is $1,833,740. Phase 1 comprised of 400 meters of drilling at a cost of $377,906 should be commenced first since an Exploration Agreement with the KLFN is in place (see Press Release dated October 27, 2011). Once an exploration agreement has been signed with the AFN, Phase 2 can proceed. Phase 2 is comprised of 1,360 meters of drilling at a cost of $1,455,834. These two programs are not dependant on one another since they are separate, discrete programs located in two unique areas of the Ring of Fire in Ontario.


Testing geophysical anomalies in north-eastern Ontario

Posted by AP on Thursday, 20 October, 2011

Zenyatta Ventures Ltd.  provides an update on the Phase II drill program at the Albany Project near Hearst in north-eastern Ontario which started on September 1.

Three (3) drill holes, testing three separate geophysical anomalies, have been completed for a total meterage of 1400 with approximately 450 samples sent to ALS Chemex for analysis. A fourth drill hole was started today to test a strong magnetic anomaly with an associated EM conductor. The program will continue until Christmas break to test several high priority Magnetic and Electromagnetic geophysical targets identified by Geotech’s VTEM 35 airborne system in 2010. It is anticipated that 10 of greater than 30 geophysical targets will be tested by year-end.

In one of the recent drill holes four separate and extensive brecciated zones have been intersected consisting, predominantly, of variably sized granite gneiss clasts set in a fine grained black matrix of, among other minerals, graphite with trace to 1% pyrite and pyrrhotite locally. A full chemical and petrographic analysis will be completed to determine the economic significance of these newly discovered breccia zones. Breccia pipe formations are often associated with mineral deposit of varying types around the world.

Another hole, just completed, intersected a coarse grained layered mafic-ultramafic intrusion (norite-gabbro) containing 1-3% pyrrhotite and trace amounts of local chalcopyrite. The observed cumulate textures and mineralization is encouraging given that Zenyatta is targeting new magmatic sources of nickel, copper, and platinum group metals related to the Mid-Continent Rifting. This validates the original theory upon which the Albany Project was based.

The Albany Project is believed to represent a deep seated Proterozoic structure that may be related to the 1.1 Billion year old Mid-Continent Rifting. The Mid-Continent Rift is a known deep seated structural environment that hosts a number of significant mineral deposits around Lake Superior, including the recently discovered Rio Tinto’s Eagle and Tamarack Cu-Ni deposits and Magma’s TBN PGM deposit. Rifting environments around the world are host to many large mineral deposits due to a tapping of the copper-nickel rich mantle by way of the structural conduits and traps for metal transport and deposit.

The Albany Project consists of approximately 300,000 acres in 28 separate claim blocks in an area highly prospective for copper, nickel, PGM’s and other mineral deposit types of magmatic origin. The 2010 airborne system identified greater than thirty anomalies on the various claim blocks. The majority of the high priority geophysical targets are to be drill tested during this Phase II program. The Phase I drilling, from March to June, encountered very encouraging results from previously unidentified sulphide bearing intrusions, favourable ultramafic rocks and a new iron discovery as noted in the news release dated June 28.


Testing EM targets in Sudbury, Ontario

Posted by AP on Tuesday, 18 October, 2011

North American Nickel Inc.  announces that the 1,500 m drill program targeting modeled plates derived from a ground EM (“InfiniTEM”) survey undertaken by Abitibi Geophysics that was initiated September 14, 2011 was completed October 8, 2011.  Drilling was done by Chenier Drilling Services.

The targets tested are associated with the CJ Structure, a belt of partial melt and quartz diorite-dominated breccias with less than 5 percent pyrrhotite, chalcopyrite and pyrite in outcrop. The breccia has been interpreted as one component of a previously unrecognized embayment structure, host to significant nickel-copper-platinum group metal ore deposits in the Sudbury mining camp.

Drill holes PC-14, -15 and -16 were designed to test EM targets within the CJ Structure breccias, PC-17 to serve as a geophysics platform, PC-18 and -19 for stratigraphy and down-hole geophysics and PC-20 to test a weak ground EM anomaly at the southern boundary of the property but on-trend with the Whistle Offset Structure, host to the currently producing Podolsky nickel-copper-PGM mine.

Drill core has been logged, cut with a diamond saw and sampled for assay. Assays will be undertaken by AGAT Laboratories, an ISO-certified laboratory. Full results are expected within five weeks.

To date, three drill holes have been surveyed with a down-hole pulsed EM system by Lamontagne Geophysical Services. Three drill holes are scheduled for the survey and will be completed within 10 days.


Expanding Disseminated and Stockwork Mineralization with ground EM survey

Posted by AP on Friday, 16 September, 2011

North American Nickel Inc. announces that ongoing field work on its Post Creek and Halcyon properties has resulted in the expansion of the recently discovered Footwall Embayment Structure.

President and C.O.O., Mark Fedikow, states, “Our newly interpreted Footwall Embayment Structure and the area of associated stockwork and disseminated mineralization at Post Creek/Halcyon is expanding as our field work continues. The embayment now measures approximately 600 x 300 metres, and we have adjusted our 1,500 metre drill program accordingly. The drill program is now underway.”

Post Creek Embayment Structure and Associated Stockwork Zone

North American Nickel’s ongoing exploration program in the vicinity of the CJ#1 and CJ#2 zones, recently interpreted as a zone of stockwork and disseminated mineralization associated with a possible Footwall Embayment Structure, has been enlarged due to beep mat and general prospecting activities. The zone of brecciation characterized by fragments and inclusions of quartz diorite and partial melt material and mineralized with disseminated pyrrhotite and chalcopyrite, has now been observed in outcrop, historic trenches and in float material for a distance of 600 metres in an east-west direction and 300 metres in a north south orientation.

The general configuration of this zone has evolved from two distinctive linear features (CJ#1 and CJ#2) to an ovoid-shaped area of mineralized breccia that abuts, and partially encapsulates, ground electromagnetic anomalies defined by a recently completed InfiniTEM ground EM survey. In its survey, Abitibi Geophysics have interpreted the CJ#1 and CJ#2 anomalies as “massive to near-massive sulphide mineralization at approximately 55 metres below surface”. These anomalies are targets in the current drill program. See http://explorationgeophysics.info/?p=1821.

To view “Figure 1. The extent of the Footwall Embayment associated zone of stockwork and disseminated mineralization on the Post Creek and Halcyon properties, the CJ#1 and CJ#2 zones and location of proposed drill holes“, please visit the following link:http://northamericannickel.com/Theme/NAN/files/Maps/POS%20QD%20Locations%20on%20GE_v001_r1y0o4.JPG.

The Halcyon property is located 35 kilometres north-northeast of Sudbury in the SE corner of Parkin Twp. at latitude 46º 48′ N and Longitude 80º 50′W. It consists of 46 unpatented mining claim units and is readily accessible by paved, all-weather gravel and bush roads. The property is situated approximately 2 kilometres north and along trend from Quadra-FNX’s, currently producing copper-nickel-PGE Podolsky Mine and is adjacent to the Post Creek property. The property is underlain by a suite of Huronian aged sedimentary rocks in uncomfortable contact with an older Archean volcanic assemblage that includes mafic and felsic volcanic rocks and iron formation. Only minimal exploration has been undertaken, although results have documented I.P., electromagnetic and magnetic geophysical targets with associated and coincident geochemical anomalies for Ni, Cu, Co, Au and Zn.

The Post Creek project is located 35 km east of Sudbury in Norman and Parkin townships and consists of 35 contiguous unpatented mining claims and one isolated claim covering an area of 688 hectares. The property is strategically located adjacent to the producing Podolsky North and Podolsky copper-nickel-platinum group metal deposit of FNX Mining. The property lies along the north-east extension of the Whistle Offset Dyke Structure which is a major geological control for Ni-Cu-PGM mineralization.