Posts Tagged Geophysics GPR

2011 Quebec North Shore exploration with Helimager+VLF

Posted by on Tuesday, 25 January, 2011
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St-Georges Platinum and Base Metals Ltd. announces the start of its 2011 North Shore exploration campaign. The Company plans to conduct a significant amount of drilling in its 2011 Phases 1 and 2 campaigns on the Julie and Isukoustouc projects located, respectively, south of the Outarde IV hydroelectric reservoir and North East of the Manic III electric dam. The properties are approximately 70 miles north of the Quebec North Shore deep-seaport town of Baie-Comeau.

An extensive 6,075 kilometres of Airborne Geophysical survey has been commissioned with GPR Geophysics and is due to start in the next few days. 3,735 km will be conducted on the Julie block and 2,345 km on the Isoukustouc block . The survey will use the Helimager — which is a towed bird system configured as a horizontal magnetic gradiometer with two cesium vapour magnetometers installed at each end of the lateral arm, six meters apart, and a Totem-2A VLF receiver on the lower arm. The radar altimeter and a DGPS system are mounted on the central body of the Helimager system. The property will be surveyed with 100-metre line spacing and 1,000-metre tie-line spacing. Mr. Rejean Paul, Sr. Eng., P. Geo. will be the manager of the project, Mr. Marc Rousseau, Phys. will be the field manager and Mr. Olivier Letourneau, Phys. will be responsible for data processing.

Read more: http://www.digitaljournal.com/pr/206628#ixzz1C6uPcdRB


AIRBORNE GEOPHYSICAL SURVEY ON MOUCHALAGANE PROPERTY

Posted by on Tuesday, 25 January, 2011

Argex Mining Inc. has completed and received the final reports for a recently flown airborne geophysical survey completed on its 100% owned Mouchalagane property. Results from the survey demonstrate a magnetic anomaly of more than 40 km in length that corresponds with iron formations that have previously been mapped and from drilling on the property as well as two outlying magnetic anomalies that also correspond with previous work that demonstrated iron formations running 2 km long and 3 km long.

Argex continues to review the results of the recently completed airborne geophysical survey and will announce its future plans for the property shortly.

The survey was completed by Geophysics GPR International Inc. The survey reported magnetic and EM-VLF results. The survey consisted of one large block covering a minimum coverage of 2447 line kilometers. The survey used the Helimager™ which is a towed bird system configured as a horizontal magnetic gradiometer with two caesium vapour magnetometers installed at each end of the lateral arm, 6 metres apart, and a Totem-2A VLF receiver on the lower arm. The radar altimeter and a DGPS system were mounted on the central body of the HelimagerTM system. The property was survey with 100 metre line spacing and 1000 metre tie-line spacing.

The Mouchalagane property is 145 km North-Northwest of Manic Dam 5, just Northwest of Rene-Levasseur Island. The Mouchalagane property is also 185 km Southwest of Consolidated Thompson’s Bloom Lake property, and 275km north of the City of Baie-Comeau. A map showing the location of Mouchalagane is attached in this release as Figure 1 (also available on the companies website at www.argex.ca and www.sedar.com).

The Mouchalagane Property is located in the North Shore region of Quebec, part of the Grenville Geological Province. The Grenville extends from more than 2,000 kilometres in length and skirts the North Shore of the St-Lawrence River. Its width varies from 300 kilometres to 600 kilometres and forms the south east segment of the Canadian Shield. The Archean rocks of the Superior Province and the Proterozoic rocks of the Otish Basin are separated from the Grenville Province by the Grenville Front.

The Grenville consists of gneiss domes and basins with complex and irregular structural patterns, and intrusive rocks of variable composition, from gabbros to alkaline rocks. The circular shaped Manicouagan Structure is located in proximity to the Mouchalagane.

The first map of the region dates from 1955 which shows several iron formation occurrences (Mount South, Mount Barn, Parr North Lake, Crazy Lake and Everett Lake) These iron formations were discovered by the Oliver Iron Mining Company in 1954 following the publication of an aeromagnetic survey completed by Canadian Aero Service in 1952.

In 1957 Consolidated Morrison Exploration undertook geological and magnetic surveys on the Moore Claims. The then named Lake La Roque Property covered four separate zones of iron formation. The iron mineralization was described as being of two types: mineralized quartzite with hematite and magnetite; and iron formation containing magnetite and iron silicates. Gravity and magnetic surveys were performed in 1960 by Sulmac Exploration Services over the same area.

Geological mapping, a magnetic survey and 11 holes were drilled, as well as metallurgical tests were performed in 1957 and 1958 on the Moore Claims. Additional metallurgical tests were completed in 1960 on more than 12 sites in the same area.

The region was mapped by Berard of the MRNFQ in the early 1960′s. Berard describes all the geological units and the iron mineralization styles of the region.

Hanna Mining Co and Matonipi Mines were also very active on the Moore Claims in 1962 and 1963. They completed geological, magnetic and gravimetric surveys and metallurgical testing.

In 1975 Matonipi Mines completed additional metallurgical testing on six difference type samples: The Mount South quartzite-oxide, Mount South magnetite-silicates, Parr Lake quartzite-oxide, Parr Lake magnetite-silicates, Mount Barn magnetite-silicates and Crazu Lake magnetite-silicates.

The property was inactive until 2006 when Fancamp Exploration and Sheridan Platinum Group resumed mineral exploration in the region. A magnetic and radiometric survey were completed over part of the current Mouchalagane property.


Geophysical program on the Duquesne-Ottoman property in Quebec

Posted by on Thursday, 2 December, 2010

Xmet Inc. reports that both airborne and ground geophysics surveys will be completed on the Duquesne-Ottoman property during the month of December. A detailed helicopter airborne geophysics survey will be completed by Geophysics GPR International Inc of Longueuil, Quebec using a GPS controlled flight line spacing of 100 meters across the entire property. This survey will be flown in conjunction with a larger, more regional survey being flown by Osisko Mining Corporation (TSX-OSK) and its partner Clifton Star Resources (TSXV-CFO). The survey will utilize the advanced TDEM EMosquito II high resolution time domain transient electromagnetic system that will provide deep penetration. A Geometrics high resolution caesium magnetometer will also be utilized to provide detailed magnetic coverage. Final products will be generated by experienced geophysicists. This survey is meant to provide refined direct detection of gold-bearing conductive sulphide zones and will improve geological and structural interpretations of known gold deposits along the Porcupine-Destor Fault.

The airborne survey will be followed by a detailed ground geophysics survey targeting high grade gold mineralization associated with disseminated sulphides at Xmet’s Nip Zone (see Xmet news release dated September 24, 2010). A hole to hole 3-D IP survey will be completed by Abitibi Geophysics of Val D’Or, targeting gold mineralization surrounding drill holes DQ-09-09 (5.25 g/t Au over 16.5m), DQ-10-17 (2.95 g/t Au over 17.0 meters), DQ-02-09 (9.00 g/t Au over 3.00m) and DQ10-18 (5.60 g/t Au over 3.00 m). The down-hole IP survey targets a radius of up to 400m around the mineralization as well as beyond the end of the hole. Future drill holes planned at the Nip zone will test all major IP targets generated by this survey.


Airborne Magnetic and TDEM Survey on St-Victor Property in Quebec

Posted by on Saturday, 27 November, 2010

BOWMORE Exploration Ltd. announces that it has contracted Geophysics GPR International Inc. of Montreal Quebec, to conduct a helicopter-borne geophysical survey on its 100% owned “St-Victor” property located within the Appalachians of southern Quebec. The property that is within an extensive belt of sedimentary rocks was targeted for near-surface, bulk-tonnage type deposit. The survey will consist of magnetic and (TDEM) time-domain electromagnetic survey covering an area of over 27,000 hectares for a total of 2410 km flown. The high resolution aeromagnetic survey was designed to identify major structures, geological contacts and potential conductors related to the previously identified gold mineralized zones (c.f. October 12th, press release). The survey will commence today and should be completed within 4 to 6 days.

Bowmore will integrate the new data with existing geological mapping and exploration results to generate an interpretation that will be used to determine the drill program that is planned for January 2011.

Mr. Paul Dumas, President of Bowmore, stated “we are pleased to move quickly with the airborne survey prior to the holidays. Taking into account the size of our property and the area we need to cover, the survey will help us to establish our drill program that is planned for early 2011″.

The region that was targeted is located within the St-Victor Synclinorium, an extensive belt of sedimentary rocks located within the Appalachians of southern Quebec. It comprises 1183 registered map-staked-claims (CDC) covering a total of 69,160 Hectares. Access to the entire property is easily made through a network of paved roads complemented by local private trails. Local resources include abundant electricity, water supply, work force and the mining facilities in the cities of Asbestos and Thetford Mines approximately 20 km to the north of the three main anomalous Gold zones. The property covers the central part of the Humber Zone part of the Appalachians. It consists in a sedimentary package dominated by shale, mudstone and greywacke of the Magog Group and the St-Daniel mélange. The gold mineralization is found as fine disseminations through the sediments. The geological context of the property is found to be favorable for large bulk-tonnage, low-grade gold deposits, similar to the world known deposits: Sukkhoi Log (Russia) and Paracatu (Brazil) containing 32 Moz Au and 18 Moz Au in fine–grained sediments respectively.


Airborne survey in the Lac Lablache

Posted by on Sunday, 14 February, 2010

Argex Silver Capital Inc.  reports that it has completed an airborne geophysical survey of its titanium, vanadium and iron ore properties in the Lac Lablache region on the North Shore of Quebec. A total of 418.5 kilometers was covered in this survey, comprising all of the Company’s claims in this region. The combined survey consisted of Magnetic, Electromagnetic and gamma-ray spectrometric surveys. This information will be integrated into the upcoming drilling campaign in the Lac Lablache area. The survey was completed by Geophysics GPR International Inc. a pioneer in applied geophysics in Canada, of Longueuil, Quebec.