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Saganaga Property


Summary

The Saganaga/Q9 properties consist of 55 claims totaling 369 claim units that cover a number of high grade gold occurrences within a 20 km segment of the south-western section of the Shebandowan Greenstone belt. The property is located approximately 120 km west of Thunder Bay and accessed by a well maintained logging road. New access has recently been provided to the centre of property due to the creation of logging roads for the forestry industry.

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Property
Highlights

Au Lithogeochemical
Highlights

Geology

The Saganaga/Q9 properties are located in the south-western extension of the Shebandewan Greenstone belt which is approximately 5km wide, has a northeast orientation, is bounded by the north, east and south by granitoid complexes and to the southeast by the older Northern Lights metagneiss. The south-eastern section of the Shebandowan belt is cut by two major NE-SW oriented faults; the Greenwater Lake and Knife Lake faults. The Greenwater Lake fault cuts the Saganaga property with left lateral displacement along the fault system. These structures and related splays likely provide conduits for gold-bearing fluids in the region.

The lithological assemblage is a north younging volcanic arc like assemblage dominated by mafic to intermediate volcanic rocks with minor amounts of felsic volcanics, interflow sediments (including banded iron formation) and ultramafic sequences. Regionally, geological units grade greenschist facies and are trending NE-SW dipping steeply to the south.

From a property scale, the Saganaga Lake property geology consists mainly of pillowed mafic flows and massive mafic volcanics intruded by a gabbro plug. In the eastern section of the property the mafic units are commonly interlayered with sedimentary sequences which include volcaniclastics and chemical sediments composed of magnetite-chert banded iron formation. In localized areas, particularly in the eastern portion of the property quartz-feldspar porphyry (QFP) dykes are found to cut the mafic volcanics.

Exploration & Mineralisation

The Saganaga property contains four historical showing areas; the Powell Zone, Beaver Pond Zone, Minnow Pond Zone and the Starr Zone. With the exception of the Powell Zone, most gold showings occur along the western contact of the gabbro plug.

In 2006, Teck Cominco completed a 2003 metre (11 hole) drill program on the Saganaga property (focused on the Starr zone) and found that highly anomalous gold values (up to 5.36 g/t over 20m) were returned from areas where the host rock is strongly albitized with high percentages of clotted pyrite. The results of this program indicated a strong correlation between anomalous gold values and areas of weak to strong albite alteration. The Q9 property contains the historical Lake Shore showing, and now a new showing called the Megan zone which was recently trenched with channel samples assaying up to 8.16 g/t Au and 124.85 g/t Ag. Trenching in the vicinity of the Megan zone also uncovered an altered quartz vein that assayed 61.2 g/t Au over 0.25 metres. The quartz vein was encountered again approximately 50 metres to the south-west and channel samples here assayed up to 4.4 g/t over 2.5 metres.

Gold mineralisation at the Saganaga and Q9 properties ranges from iron formation hosted gold in the south-west to pyrite-albite alteration zones and quartz veins with chalcopyrite in the central part and quartz veins hosting high grade gold and silver to the north-east.

Hydrothermal alteration was primarily observed in host rocks that were in close proximity to silica +/- carbonate veins. Typically these veins are sub-mm to metre in scale and are spatially associated with shear zones and/or QFP intrusions which also occasionally showed pyritization. Silicification is commonly evident around the Powell Zone, and the Starr showing. In these areas the silica veins for irregularly oriented commonly low angle sheetlike veins. Typically the host rock proximal to these veins is mafic and has undergone varying degrees of hydrothermal alteration (i.e. chloritized, carbonitized and pyritized).
 

Early in 2012, Benton Completed a 2654m drill program at Saganaga (see BTC PR May 18, 2012) and the results of this campaign are as follows:

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