Tan Creek Ridge

Prospects, Active

Commodities and mineralogy

Main commodities Au
Ore minerals gold

Geographic location

Quadrangle map, 1:250,000-scale BD
Quadrangle map, 1:63,360-scale B-2
Latitude 64.402
Longitude -144.703
Nearby scientific data Find additional scientific data near this location
Location and accuracy The Tan Creek Ridge prospect is located on a ridge above the eastern tributary of Sonora Creek, a tributary of Central Creek (BD011). The prospect is part of a 72-square-mile claim block that includes the Pogo deposit (BD033) and parts of Central Creek. The approximate center of the prospect is in SW1/4SE1/4 section 11, T. 6 S., R. 15 E., of the Fairbanks Meridian. A winter trail from Big Delta on the Richardson Highway provides access up the Goodpaster River. A 1,500-foot airstrip is also located at the mouth of Pogo Creek, about 7 miles northwest. Tan Creek Ridge was not identified as a separate location by Cobb (1972; MF-388) or by Cobb and Eberlein (1980).

Geologic setting

Geologic description

The Tan Creek Ridge prospect is part of a 72-square-mile claim block that includes the Pogo deposit (BD033) and parts of Central Creek (BD011). The regional bedrock is composed of high grade gneisses intruded by Cretaceous granitic bodies. The area is predominantly cut by northwest-trending, high-angle faults. However, there are other high-angle faults with various orientations (Smith, 1998). To the north, the region is intruded by the Cretaceous Goodpaster Batholith (Teck Resources Inc., unpublished report, 1998).
A regional stream-sediment sampling program identified gold, arsenic, and tungsten anomalies of nearby Liese Creek and Pogo Creek in 1981. From 1991 to 1998, exploration of the claim block has included a total of 171,859 feet of drilling and collected 9,641 core samples and 5,508 geochemistry samples (M. Smith, oral communication, 1999). Two rock samples collected during the 1998 field season from Tan Creek Ridge contained 13 ounces/ton Au and 28 ounces/ton Au. Exploration of the claim block identified an 8-mile-long trend of anomalous soil geochemistry extending from the Pogo deposit to the southeast (Teck Resources Inc., unpublished report, 1998).
Geologic map unit (-144.705339974396, 64.4016236792368)
Mineral deposit model Plutonic-related mesothermal.

Production and reserves

Workings or exploration A regional stream-sediment sampling program identified gold, arsenic, and tungsten anomalies in the nearby Liese Creek and Pogo Creek in 1981. From 1991 to 1998, exploration of the claim block has included a total of 171,859 feet of drilling and collected 9,641 core samples and 5,508 geochemistry samples (M. Smith, oral communication, 1999). Two rock samples collected during the 1998 field season from Tan Creek Ridge contained 13 ounces/ton Au and 28 ounces/ton Au. The exploration program of the claim block identified an 8-mile-long trend of anomalous soil geochemistry extending from the Pogo deposit to the southeast (Teck Resources Inc., unpublished report, 1998).
Indication of production None

Additional comments

Tan Creek Ridge is part of the Pogo project, a joint venture of Teck Corporation, Sumitomo Metal Mining, and Sumitomo Corporation. The Teck Corporation is the principal operator of the project and can earn a 40 percent interest in the property.

References

MRDS Number 10307240

References

Teck Resources Inc., 1998, Pogo project advanced exploration program, Stage II application and plan of operations: Teck Resources Inc. report, 75 p.
Reporters Cameron S. Rombach (ADDGS)
Last report date 4/26/1999