Curve Creek Prospect, Port Clarence Mining District, Nome Census Area, Alaska, USAi
Regional Level Types | |
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Curve Creek Prospect | Prospect |
Port Clarence Mining District | Mining District |
Nome Census Area | Census Area |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
65° 27' 0'' North , 167° 13' 26'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Mindat Locality ID:
197124
Long-form identifier:
mindat:1:2:197124:1
GUID (UUID V4):
6f2c66e3-9ce9-43f4-a1bc-4384fbf48f0d
Location: Curve Creek is the second tributary entering Lost River from the west, 3 miles upstream from the mouth of Lost River on Bering Sea. It is a southeast-flowing stream draining Ordovician limestones of the York Mountains. The Curve Creek prospect is located on the south side of a small west tributary between elevations of 500 and 1,000 feet. This is locality 4 of Cobb and Sainsbury (1972). Cobb (1975) summarized relevant references under the name 'Curve Cr.'.
Geology: Fluorite and some beryllium (up to 0.15% BeO) mineralization is localized along mafic dikes and fractured Lower Orodvician limestone in the footwall of the Rapid River fault. Sainsbury (1969; 1972) maps the Rapid River fault as a 12-mile long east-west trending thrust fault in the southern part of the York Mountains although stratigraphic relations across the fault suggest normal displacement. Mineralization here is apparently present over about 4,000 feet of east-west strike.
Workings: Surface observations and sampling reported by Sainsbury (1969, p. 77-78).
Age: The age of the mineralization is assumed to be related to the development of tin systems in the Lost River area and therefore Late Cretaceous, the age of the tin-mineralizing granites there (Hudson and Arth, 1983).
Alteration: Mass balance calculations show significant SiO2, Al2O3, alkali, and fluorine enrichment with mineralization (Sainsbury, 1968, p. 1567).
Reserves: Not defined
Commodities (Major) - Fluorite; (Minor) - Be
Development Status: None
Deposit Model: Fluorite- and beryllium-bearing veins and replacements in Ordovician limestone
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:
ⓘ Diaspore Formula: AlO(OH) |
ⓘ Fluorite Formula: CaF2 |
ⓘ Pyrite Formula: FeS2 |
ⓘ 'Silica' |
ⓘ Stibnite Formula: Sb2S3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 3 - Halides | |||
ⓘ | Fluorite | 3.AB.25 | CaF2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Diaspore | 4.FD.10 | AlO(OH) |
Unclassified | |||
ⓘ | 'Silica' | - |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Diaspore | AlO(OH) |
O | Oxygen | |
O | ⓘ Diaspore | AlO(OH) |
F | Fluorine | |
F | ⓘ Fluorite | CaF2 |
Al | Aluminium | |
Al | ⓘ Diaspore | AlO(OH) |
S | Sulfur | |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Stibnite | Sb2S3 |
Ca | Calcium | |
Ca | ⓘ Fluorite | CaF2 |
Fe | Iron | |
Fe | ⓘ Pyrite | FeS2 |
Sb | Antimony | |
Sb | ⓘ Stibnite | Sb2S3 |
Other Databases
Link to USGS - Alaska: | TE037 |
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Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
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