Baldry Mountain Prospect, Rampart Mining District, Yukon-Koyukuk Census Area, Alaska, USAi
| Regional Level Types | |
|---|---|
| Baldry Mountain Prospect | Prospect |
| Rampart Mining District | Mining District |
| Yukon-Koyukuk Census Area | Census Area |
| Alaska | State |
| USA | Country |
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Latitude & Longitude (WGS84):
65° 18' 19'' North , 150° 20' 27'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Location: This manganese lode occurrence is about 1.1 miles west of the top of Baldry Mountain. The site is at an elevation of 2,500 feet, just north of the center of section 36, T. 6 N., R. 14 W., of the Fairbanks Meridian. The site corresponds to location 10 of Cobb (1972), and roughly to the U.S. Bureau of Land Management site for Baldry Mountain (MAS number 0020480008). The location is accurate within 2 miles.
Geology: This lode occurrence is near the axis of a northeast-trending, overturned syncline mainly of gray, finely laminated, recrystallized sericitic chert and siliceous argillite, commonly with phyllitic argillite partings (Reifenstuhl and others, 1997 [PDF 97-15a]). The rocks are assigned an early Paleozoic or Proterozoic age based on tentative correlation with the Livengood Dome Chert. The chert and argillite are cut by northeast-trending thrust faults. Burand and Saunders (1966) reported some exploration of a manganese (psilomelane) deposit west of Baldry Mountain.
Workings: Burand and Saunders (1966) reported some exploration of a manganese (psilomelane) deposit west of Baldry Mountain.
Commodities (Major) - Mn
Development Status: None
Deposit Model: Epithermal Mn (Cox and Singer, 1986; model 25g) or Replacement Mn (Cox and Sing
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
Detailed Mineral List:
| ⓘ 'Psilomelane' |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Unclassified | |||
|---|---|---|---|
| ⓘ | 'Psilomelane' | - | |
List of minerals for each chemical element
Other Databases
| Link to USGS - Alaska: | TN048 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Arctic AlaskaPassive Margin
- Wickersham DomainDomain
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