Unnamed Occurrence (ARDF - SR026; on Donaldson Creek), Hope Mining District, Kenai Peninsula Borough, Alaska, USAi
| Regional Level Types | |
|---|---|
| Unnamed Occurrence (ARDF - SR026; on Donaldson Creek) | - not defined - |
| Hope Mining District | Mining District |
| Kenai Peninsula Borough | Borough |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
60° 46' 7'' North , 149° 29' 41'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Hope | 192 (2017) | 18.3km |
| Girdwood | 2,250 (2017) | 26.3km |
| Moose Pass | 219 (2014) | 32.0km |
| Cooper Landing | 289 (2017) | 35.9km |
| Primrose | 111 (2006) | 44.4km |
Location: This occurrence on Donaldson Creek is at an elevation of 1,800 feet. It is in the SW1/4 section 20, T. 8 N., R. 1 W., of the Seward Meridian. The location is accurate to within a quarter of a mile. This is location 13 of Cobb and Richter (1972), location 12 of MacKevett and Holloway (1977), location 28 of Cobb and Tysdal (1980), and location S-277 of Jansons and others (1984).
Geology: This occurrence consists of a slightly mineralized felsic dike that cuts slate and graywacke of the Valdez Group of Late Cretaceous age (Tuck,1933; Nelson and others, 1985). The dike strikes N30E, dips vertically, and ranges in width from 8 to 10.5 feet. It is similar to, and could be a continuation of, the Gilpatrick dike (Martin and others, 1915). The highest gold assay value reported is $1.08 per ton (gold at $20.67 per ounce)(Johnson, 1915).
Workings: Martin and others (1915) reported open cuts showing sparse mineralization. The highest gold assay value reported is $1.08 per ton (gold at $20.67 per ounce).
Age: Cretaceous or younger; the felsic dikes cut rocks of the Valdez Group of Late Cretaceous age.
Commodities (Major) - Au
Development Status: None
Deposit Model: Low-sulfide Au-quartz vein (Cox and Singer, 1986; model 36a)
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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.
Gallery:
Other Databases
| Link to USGS - Alaska: | SR026 |
|---|
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