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Tapian Main Copper-Gold Prospects
Geology consists of greenschist overthrust by ultramafics, unconformably overlain by limestone and intruded by multiple intermediate porphyry intrusions. High-level epithermal gold mineralization occurs as veins, stockworks and breccias at contacts between green-schist, ultramafic, limestone and intrusives.
The Rosario Zone is about 500 meters by 200 meters and open to the north. It includes extensive pre-World War Two underground development of a vein system, which reportedly had a 100 ton per day mill. The workings are inaccessible and production is unknown. Very incomplete records suggest the average grade was 8.3 g/t gold. The adjacent Samson Zone is about 600 meters by 200 meters. Encouraging gold values from rock sampling were obtained over widespread areas in this zone. Copper soil anomalies greater than 150 ppm and up to 1,192 ppm are associated with both the Rosario and Samson zones.
A strong chargeability anomaly, coincident with intrusives, soil geochemical anomalies and alteration, extending over an area of 1.4 kilometers by 600 meters, covers the Rosario and Sampson Zones, and is open to the south. Planned work includes further evaluation of the epithermal gold potential by trenching, extension of the geophysical survey to fully define the anomalies, and drilling, if warranted.
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