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 Home to several of the world's largest and most profitable gold mines, the Tintina Gold Belt has become a hotbed of activity in recent years, as major mining companies move to lock-up prospective projects in a gold region with historic/present deposits in excess of 50 million ounces.
Guinness Exploration has acquired an advanced gold project (the Nantawa Project) covering more than 8,000 acres in a zone with significant recent production and extensive drill data. Management of Guinness Exploration considers the Nantawa Project to have the potential to host a world-class discovery, and is rapidly moving forward to advance the project through extensive data analysis, fieldwork, and drilling.
The Mount Nansen & Tawa Properties - Click here for images of project developments
The Mount Nansen and Tawa properties consist of 203 full or fractional claims with a total area of 3692.75 hectare located in the Mount Nansen area of Yukon. Geographically, the properties are situated approximately 180 km northwest of Whitehorse and 60 km west of Carmacks in the Yukon Territory. Topographically, the properties have an average elevation of ~1,200 m with rolling hills broken up with broad stream valleys. Geologically, the Mount Nansen District is in the Dawson Range of the Yukon Tanana Terrane. The properties are mild and dry.
In 2008, a geophysical survey was conducted covering both Mount Nansen property and Tawa property with the aim of locating and evaluating the extent and nature of the mineralization in the district. Results show that the Mount Nansen porphyry is associated with a magnetic high, a large syenite mass occupying the northeast part of the survey is associated with a moderate magnetic high and localized magnetic highs, and a series of porphyry bodies trending northwest through the Brown-McDade mine area are associated with a series of northwest trending magnetic highs.
Based on results of the geophysical survey, voluminous technical data from the years of exploration, mine development and operation that are available for Mount Nansen property and Tawa property and on the Middleton’s examination of the properties, he concluded that Mount Nansen property and Tawa property have exploration potential.
Geology and the late time response of the 2008 geophysical survey in the Mount Nansen area. (below)
EXPLORATION HISTORY OF THE MOUNT NANSEN PROPERTY AREA
Placer gold was discovered in Nansen Creek by Captain Henry Seymour back in 1899 (Lecuyer, 1997). In 1943, the first lode deposit discovery was made by prospectors A Brown and G McDade and subsequently, Brown-McDade Mines Ltd was formed and the company undertook underground development and drilling on Brown-McDade deposit in 1946. During the same period, the Webber and Huestis deposit to the west of the Brown-McDade deposit was identified. After this initial activity, only sporadic exploration was conducted until 1963.
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Mineralized Zones in the Mount Nansen Property (below)
The Mount Nansen property hosts four distinct gold and silver mineralized zones (the Brown-McDade zone, the Webber zone, the Huestis zone, and the Flex zone). Significant exploration and development work has been conducted in these zones, but as none of these programs were 43-101 compliant they can not be included in any resource estimates on the property. Accordingly one of the first priorities is to undertake confirmation drilling on many of the holes where high grade AU and AG values were encountered. In addition, testing of the fact that grades may be open to depth below 200 – 400 m is also encouraging.
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EXPLORATION HISTORY ON THE TAWA PROPERTY
In 1980, BRX Mining and Petroleum Corp re-staked 24 claims on the property and conducted an exploration program including a soil geochemical survey, some trenching and 447.3 m of diamond drilling in seven holes in the zone now referred as the BRX zone. In 1986, Chevron Minerals acquired an option on the Tawa property from BRX Mining and Petroleum Corp. Over the next two years, three mineralized zones (BRX, Klaza and BYG), as well as subsidiary systems, were identified.
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Mineralized Zones in the Tawa Property (below)
Three mineralized zones have been defined on the Tawa property: BRX, Klaza and BYG. These three zones are similar to the veins on the Mount Nansen property and occur within the northwest striking fault zones. The fault zones commonly consist of one to 10 m of gouge, containing pitted, light green quartz bands up to three meters wide. Locally, there are sulphides, massive pyrite, arsenopyrite, galena and sphalerite, within or adjacent to the quartz.
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Tables
Vein Ore Shoots Huestis and Webber Deposits
Summary Diamond Drill Hole Assays
Figures and Maps of Geology
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