Lower Dry Creek Mine, Nome Mining District, Nome Census Area, Alaska, USAi
Regional Level Types | |
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Lower Dry Creek Mine | Mine |
Nome Mining District | Mining District |
Nome Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
64° 31' 15'' North , 165° 20' 31'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Nome | 3,806 (2018) | 3.8km |
Mindat Locality ID:
198624
Long-form identifier:
mindat:1:2:198624:5
GUID (UUID V4):
df519c47-b6f7-4125-bd2e-ad5c01b2594b
Location: This gold placer mine is at an elevation of about 100 feet on lower Dry Creek about 2.5 miles upstream of its mouth. The map location is just east of the center of section 19, T. 11 S., R. 33 W., Kateel River Meridian. This is locality 127 of Cobb (1972 [MF 463], 1978 [OFR 78-93]).
Geology: Most of Dry Creek, starting about 1 mile upstream from its mouth, is auriferous. The placer deposit described in this record is the stretch from about Blind Gulch, where Dry Creek crosses the trend of Intermediate Beach (NM287), upstream to the mouth of Newton Gulch. Mining took place as early as 1900 and in most subsequent years to 1938 (Cobb, 1978 [OFR 78-93]). Most of the mining on the lower part of the creek was probably by open cut or dredging; dredges were reported to be operating on Dry Creek almost every year from 1920 to 1938. Dredging was resumed in this area in about 1975, and a dredge operated until 1994. The first deposits mined on lower Dry Creek were shallow and fairly small. A shallow pay streak about 1 mile upstream from the mouth was 150 feet wide and 3 to 5 feet thick on a clay bottom; it commonly ran a little more than 0.2 ounce of gold per cubic yard (Moffit, 1913, p. 90-91); concentrates included hematite, pyrite, and scheelite. These deposits were partly mined with dredges with digging capacity of 10 to 20 feet (Metcalfe and Tuck, 1942, p. 26). In later years, buried deposits were extensively mined along modern Dry Creek. These deposits include some related to Third Beach and Intermediate Beach; the eastern extension of Submarine Beach is probably near the mouth of Dry Creek (Moffit, 1913, p. 118). Dry Creek marks the eastern limit of the richest part of Third Beach (Metcalfe and Tuck, 1942). Dry Creek was an active drainage during Third Beach time, dumping gold-bearing alluvium directly into the Third Beach sea (Metcalfe and Tuck, 1942, p. 37). The deeper deposits below the Third Beach strandline and on abrasion platforms such as Intermediate Beach were mined until 1995 by dredges with as much as 80-foot digging capacity; locally, some of the deep deposits were naturally thawed.
Workings: Most of the mining on the lower part of Dry Creek was probably by open cut or dredging; dredges were reported to be operating on Dry Creek almost every year from 1920 to 1938. Mining took place up to at least 1995.
Age: Quaternary.
Commodities (Major) - Au; (Minor) - W
Development Status: Yes; medium
Deposit Model: Alluvial placer gold deposit (Cox and Singer, 1986; model 39a). Placer deposits
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
4 valid minerals.
Detailed Mineral List:
β Gold Formula: Au |
β Hematite Formula: Fe2O3 |
β Pyrite Formula: FeS2 |
β Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Gold | 1.AA.05 | Au |
Group 2 - Sulphides and Sulfosalts | |||
β | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
β | Hematite | 4.CB.05 | Fe2O3 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
β | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
O | Oxygen | |
---|---|---|
O | β Hematite | Fe2O3 |
O | β Scheelite | Ca(WO4) |
S | Sulfur | |
S | β Pyrite | FeS2 |
Ca | Calcium | |
Ca | β Scheelite | Ca(WO4) |
Fe | Iron | |
Fe | β Hematite | Fe2O3 |
Fe | β Pyrite | FeS2 |
W | Tungsten | |
W | β Scheelite | Ca(WO4) |
Au | Gold | |
Au | β Gold | Au |
Other Databases
Link to USGS - Alaska: | NM264 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
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