West Pogo; ER Prospect, Goodpaster Mining District, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| West Pogo; ER Prospect | Prospect |
| Goodpaster Mining District | Mining District |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 26' 54'' North , 145° 5' 13'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: The West Pogo prospect consists of 17 square kilometers of State of Alaska claims. The coordinates are at about the center of the claims, about 5.1 miles west-southwest of the junction of the Goodpaster River and Indian Creek. The prospect adjoins the claims of the Rainbow prospect (BD054).
Geology: The West Pogo prospect is held by International Tower Hill Mines, Inc. (2008, Pogo); they acquired it from from AngloGold Ashanti (USA) Exploration, Inc. The rocks in the area are similar to those at the Pogo Mine (BD033) about 5 miles to the east. That is biotite-quartz feldspar orthogneiss intruded by plutons and the center of the prospect is a 100-ma-old, Cretaceous diorite. The prospect is marked by aneast-west trending gold anomaly in the soils which is also the strike of the fault zone, the dominant structure. One hole was drilled near the western margin of the pluton. The hole missed its intended target and remained in the pluton for its entire length; the best interval in the hole was 2 meters that contained 0.3 gram of gold per ton. The geochemistry suggests that the best mineralization is west of the hole. As at the Pogo mine, the mineralization consists of high temperature quartz veins. The best sample collected at the surface contained 11 grams of gold per ton with high bismuth and tellurium.
Workings: Surface sampling, geologic mapping, and soil geochemistry; one drill hole.
Age: Probably related to the 100-ma-old intrusion at the center of the prospect.
Alteration: No data.
Reserves: None.
Commodities (Major) - Au, Bi, Te
Development Status: None
Deposit Model: Similar to the Pogo mine just to the east, high temperature gold-quartz veins t
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
2 valid minerals.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | BD055 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- North America PlatformPassive Margin
- Yukon-Tanana lower DomainDomain
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