Andesite Creek; Lava Lake Occurrence, Kougarok Mining District, Nome Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Andesite Creek; Lava Lake Occurrence | Occurrence |
| Kougarok Mining District | Mining District |
| Nome Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 34' 11'' North , 163° 55' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: Hopkins (1963) discribes three exposures of diatomite in the upper valley of Andesite Creek, the northeasternmost exposure being due south of Lava Lake. The terminal parts of Lost Jim lava flow cover parts of the diatomite deposit. This location is approximate, probably within 1 mile.
Geology: Diatomite was deposited in a former lake formed when a Quaternary lava flow dammed Andesite Creek. The diatomite, as observed in three areas of exposure by Hopkins (1963,) is progressively more contaminated with darker-colored organic material to the southwest. The northeasternmost exposure is nearly pure diatomite covering an area of at least 2,500 feet by 1,000 feet. Diatomitet thicknesses of 4 to 10 feet have been observed in stream and lake banks and the base is not exposed. These diatomaceous lake deposits are locally overlain by terminal parts of the Holocene Lost Jim lava flow (Hopkins, 1963).
Workings: None.
Commodities (Major) - Diatomite
Development Status: No
Deposit Model: Lacustrine sedimentary deposits
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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.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
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Alphabetical List Tree DiagramGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Opal | SiO2 · nH2O |
| O | Oxygen | |
| O | ⓘ Opal | SiO2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Opal | SiO2 · nH2O |
Other Databases
| Link to USGS - Alaska: | BN111 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Brooks-Seward DomainDomain
- Nome ComplexAccretionary Complex
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