South Liberty Prospect, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| South Liberty Prospect | Prospect |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 29' 8'' North , 141° 11' 49'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
The South Liberty prospect is located within Doyon, Ltd. selected or conveyed land. For more information contact Doyon, Ltd., Fairbanks, Alaska.
Location: The South Liberty prospect is located in a road cut one-half mile south of the settlement of Liberty along the Taylor Highway. The coordinates are the approximate location of the road cut, in section 16, T. 5 S., R. 33 E., of the Fairbanks Meridian. The location is accurate. The South Liberty prospect is located within Doyon, Ltd. selected or conveyed land.
Geology: The South Liberty prospect is in Paleozoic greenstone, Paleozoic or Mesozoic serpentinite, and Permian quartzite and argillite (Foster, 1976). The prospect consists of iron-stained quartz-carbonate veins that cut greenstone and quartz-muscovite schist (WGM Inc., 1998 [DLR 98-12]). Soil samples were collected by WGM Inc. in 1990 (WGM Inc., 1998 [DLR 98-12]). One soil sample contains 7,517 ppb gold, 27.1 ppm silver, 2,000 ppm arsenic, 277 ppm antimony, and 176 ppb mercury; an adjacent soil sample contains 2,130 ppb gold, 9.8 ppm silver, greater than 10,000 ppm arsenic, 420 ppm barium, and 64 ppm antimony. Rock samples contain as much as 2,780 ppb gold, 8.8 ppm silver, greater than 10,000 ppm arsenic, and 104 ppm antimony. The South Liberty prospect is within a northeast-trending group of magnetic anomalies that extends for about 15 miles (WGM Inc., 1998 [DLR 98-12]). The magnetic anomaly indicates a southwest trend to greenstone and suggests a relation to the Howard prospect (EA072), three-quarters of a mile to the north. Three strong EM conductors are parallel to faults adjacent to the magnetic anomalies. The prospect may be a Cyprus-type massive sulfide deposit or a greenstone-related, Mother Lode-type-gold deposit (WGM Inc., 1998 [DLR 98-12]).
Workings: Soil samples were collected by WGM Inc. in 1990 at the South Liberty prospect (WGM Inc., 1998 [DLR 98-12]).
Age: Paleozoic or younger.
Commodities (Major) - Ag, Au, Hg, Sb; (Minor) - As, Ba
Development Status: None
Deposit Model: Possibly Cyprus massive sulfide or low-sulfide gold-quartz veins (Cox and Singe
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.
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
Other Databases
| Link to USGS - Alaska: | EA073 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Yukon-TananaVolcanic Arc
- Yukon-Tanana upper DomainDomain
USA
- Alaska
- Fortymile Mining DistrictMining District
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