Miller Peak Occurrence, Glacier Bay Mining District, Juneau Mining District, Alaska, USAi
Regional Level Types | |
---|---|
Miller Peak Occurrence | Occurrence |
Glacier Bay Mining District | - not defined - |
Juneau Mining District | Mining District |
Alaska | State |
USA | Country |
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Latitude & Longitude (WGS84):
58° 43' 24'' North , 135° 54' 14'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Gustavus | 434 (2017) | 35.8km |
Mindat Locality ID:
198885
Long-form identifier:
mindat:1:2:198885:0
GUID (UUID V4):
6113286d-6c39-4e98-b2d9-dda48592124d
This occurrence is in Glacier Bay National Park and Reserve.
Location: This occurrence is at an elevation of approximately 3,000 feet, on the northwest flank of Miller Peak, 2.5 miles east of Sandy Cove in Glacier Bay. It is in the NE1/4 section 28, T. 36 S., R. 57 E. of the Copper River Meridian. The location is accurate.
Geology: The general area is underlain by deformed and metamorphosed Silurian or Devonian carbonate, clastic and volcanic clastic rocks that have been intruded by Upper Jurassic and Lower Cretaceous granitic and dioritic rocks (Brew and others, 1992). This occurrence was discovered in 1976 by the U.S. Geological Survey (Brew and others, 1978). It consists of widely-spaced quartz veins parallel to the bedding in limestone. A series of sills and ankerite layers up to 10-feet-thick also appear to be parallel to the bedding. One vein is in the footwall of an andesite sill; others are in the limestone. The veins contain ankerite, biotite, chlorite, albite-orthoclase, sericite, calcite, pyrite, chalcopyrite, and malachite. The veins can be traced for hundreds of feet. Channel samples of the veins contained 0.42 to 1.5 percent copper and traces of silver (Brew and others, 1978).
Workings: Surface samples only.
Alteration: Local oxidation of copper minerals.
Commodities (Major) - Ag, Cu
Development Status: No
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
6 valid minerals.
Detailed Mineral List:
ⓘ Ankerite Formula: Ca(Fe2+,Mg)(CO3)2 |
ⓘ Calcite Formula: CaCO3 |
ⓘ Chalcopyrite Formula: CuFeS2 |
ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
ⓘ Pyrite Formula: FeS2 |
ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
ⓘ | Ankerite | 5.AB.10 | Ca(Fe2+,Mg)(CO3)2 |
ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Malachite | Cu2(CO3)(OH)2 |
C | Carbon | |
C | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
C | ⓘ Calcite | CaCO3 |
C | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | Oxygen | |
O | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Malachite | Cu2(CO3)(OH)2 |
O | ⓘ Quartz | SiO2 |
Mg | Magnesium | |
Mg | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
S | Sulfur | |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Pyrite | FeS2 |
Ca | Calcium | |
Ca | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Ca | ⓘ Calcite | CaCO3 |
Fe | Iron | |
Fe | ⓘ Ankerite | Ca(Fe2+,Mg)(CO3)2 |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Pyrite | FeS2 |
Cu | Copper | |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
Link to USGS - Alaska: | JU064 |
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Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Alexander DomainDomain
USA
- Alaska
- Juneau Mining DistrictMining District
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