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Project
The Coffee Dome project is an early-stage exploration project with high-grade Au-Te-Bi-As veins at surface which represent proximal mineralization in intrusive-related gold system more analogous to the Pogo Mine style mineralization than to the Fort Knox Mine style.
Location & Access
The property lies 37km north of the town of Fairbanks Pop. 80,000 and is located on State of Alaska claims and University of Alaska land. Year-round access to the site is on State maintained highways and secondary roads. Fort Knox Mine and Mill is 15km south.
Ownership
International Tower Hill Mines ("ITH") controls 100% of the of 65 State of Alaska claims staked from 2004 to 2006 and the University of Alaska lease acquired in 2007 covering at total of 4,145 hectares (10,260 acres) of land.
Figure 1: Coffee Dome Project land holdings map, note sections are one square mile.
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Property Background
The Coffee Dome property was acquired based on strongly anomalous Au-Te-Bi and a number of high-grade gold veins from surface sampling. This geochemical signature closely resembles the Pogo Mine style of mineralization. ITH has completed the initial phase of exploration at Coffee Dome and has now moved into the trenching and drilling phase of the project, which will be the first time the project has had rigorous surface exploration or drilling.
Mineralization
Gold mineralization is primarily hosted in high-grade quartz veins similar in character to those in the Pogo and Fort Knox deposits which occur along regional fault structures with in the Tintina Gold Belt.
Locally, banded quartz veins with scorodite and occasional arsenopyrite are generally 10-30cm wide and consistently return assays of 10-20g/t Au with individual samples up to 96g/t Au (Table 1, Figure 2). Highly anomalous concentrations of Bi and Te associated with the Au. This suggests that the mineralization is relatively proximal to the causative intrusive, a positive result as this is the Pogo Mine mineralization model.
Table 1: Rock geochemistry from Coffee Dome high-grade samples
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Figure 2: Top ten highest rock assays from the Coffee Dome Project lie in the southern most target area. |
At present the full extent of the system is not well constrained. Stream sediment and soil sampling shows that the area of mineralization is open to the north (Figure 3).
Figure 3: Coffee Dome Project geochemical (2004 to 2006 results) and target map.
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