Baby Creek Mines, Southeast Fairbanks Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Baby Creek Mines | Group of Mines |
| Southeast Fairbanks Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
64° 8' 24'' North , 141° 10' 19'' West
Latitude & Longitude (decimal):
Type:
Group of Mines
Köppen climate type:
Location: Baby Creek is a small south tributary of Squaw Gulch (see EA147). Placer workings extend for the lower mile of Baby Creek. The coordinates are the approximate midpoint of the placer workings, in section 7, T. 27 N., R. 22 E., of the Copper River Meridian. The location is accurate. Baby Creek is locality 105 of Burleigh and Lear (1994).
Geology: The rocks in the vicinity of Baby Creek are Paleozoic amphibolite-facies gneiss, orthogneiss, schist, amphibolite, quartzite, and marble (Foster, 1969). Tertiary conglomerate with sparse interbedded sandstone occurs along the lower mile of Baby Creek. Gravel in Baby Creek and Squaw Gulch (see EA147) is subrounded to angular; some boulders of well-rounded quartz are as much as 1.6 feet in diameter (Yeend, 1996). Three to ten feet of gravel are generally present on top of fractured, somewhat weathered, clay-rich bedrock. Values of $4 per cubic yard of gravel were recovered during mining on Baby Creek in 1991, mostly from the lower 1.6 feet of gravel (Yeend, 1996). Small-scale mining occurred on a bench above Baby Creek in 1912 (Ellsworth and Davenport, 1913). A small open-cut operation has been active at the intersection of Squaw Gulch (see EA147) and Baby Creek from 1980 through 2000 (Bundtzen and others, 1992; Swainbank and others, 1993; Norm LaFramboise, Boundary Explorations, Inc., written commun., 2000).
Workings: Small-scale mining occurred on a bench above Baby Creek in 1912 (Ellsworth and Davenport, 1913). A small open-cut operation has been active at the intersection of Squaw Gulch (see EA147) and Baby Creek from 1980 through 2000 (Bundtzen and others, 1992; Swainbank and others, 1993; Norm LaFramboise, Boundary Explorations, Inc., written commun., 2000).
Age: Quaternary.
Production: Values of $4 per cubic yard of gravel were recovered during mining on Baby Creek in 1991, mostly from the lower 1.6 feet of gravel (Yeend, 1996).
Commodities (Major) - Au
Development Status: Yes; small
Deposit Model: Placer Au (Cox and Singer, 1986; model 39a).
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
1 valid mineral.
Detailed Mineral List:
| ⓘ Native Gold Formula: Au |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
List of minerals for each chemical element
| Au | Gold | |
|---|---|---|
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS - Alaska: | EA148 |
|---|
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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