| Deposit ID | 10209786 |
|---|---|
| MAS/MILS ID | 0021110010 |
| Record type | Site |
| Current site name | North Shore Johns Hopkins Inlet |
| Alternate or previous names | Brew No. 28, Locality 64, Johns Hopkins Inlet North |
| Point of reference | Ore Body |
|---|---|
| Geographic coordinates: | -136.98273, 58.92472 (WGS84) |
| Location accuracy | 500(meters) |
Political divisions (FIPS codes)
Hoonah-Angoon(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Mount Fairweather D-3(quadrangle 1:63,360 scale)
Mount Fairweather NE(quadrangle 1:100,000 scale)
Mount Fairweather(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Glacier Bay(hydrologic unit)
Northern Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Glacier Bay National Park(National Park)
National Park NPS(Type of land area)
NPS(Federal land areas administered by NPS)
| Country | State |
|---|---|
| United States | Alaska |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Copper River | 034 S | 051 E | 18 | SWNWNW | Alaska |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Molybdenum | Tertiary |
| Silver | Tertiary |
| Materials | Type of material |
|---|---|
| Actinolite | Unknown |
| Albite | Unknown |
| Andesine | Unknown |
| Apatite | Unknown |
| Biotite | Unknown |
| Calcite | Unknown |
| Chalcopyrite | Unknown |
| Chlorite | Unknown |
| Epidote | Unknown |
| Garnet | Unknown |
| Goethite | Unknown |
| Hornblende | Unknown |
| Ilmenite | Unknown |
| Magnetite | Unknown |
| Muscovite | Unknown |
| Oligoclase | Unknown |
| Orthoclase | Unknown |
| Plagioclase | Unknown |
| Pyrite | Unknown |
| Pyrrhotite | Unknown |
| Quartz | Unknown |
| Sericite | Unknown |
| Sphalerite | Unknown |
| Sphene | Unknown |
| Zircon | Unknown |
| Ore Body (1) | -136.98273, 58.92472 |
|---|
| Area | 10HA | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||||||||
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Significant | No |
| Discovery year | 1937 |
| District name | Juneau District |
|---|
| Type of mineral rights | Minerals Only |
|---|
| Ownership category | National Park |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0021110010 |
| Subject category | Comment text |
|---|---|
| Deposit | DISC. 1938. NO CLAIMS. SEVERAL ALTERED & MINERALIZED ZONES WITHIN CONTACT ZONE OF PREDOMINANTLY DIORITIC TERRAIN AND GREENSTONE, PHYLLITE OR GRANODIORITE GENERALLY NEAR INTRUSIVE CONTACTS. A FEW ALTERED ZONES NEAR MAFIC DIKES. FEW SULFIDE LENSES PRESENT. BEST VALUES: 1000 PPM CU, TRACE OF MO & AG. SULFIDES: PYRITE & VERY LITTLE CHALCOPYRITE ZONES LARGE BUT TOO LOW GRADE TO ENCOURAGE EXPLORATION. NO ALASKA KARDEX. POINT TO INCLUDE COPPER MINERALIZATION FOR 2 MILES EAST AND WEST OF PLOTTED POINT. EQUIVALENT TO MACKEVETT LOCATION NUMBER 64 AND BREW LOCATION NUMBER 28. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 12-FEB-1988 | Wlg | U.S. Bureau of Mines |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
These are landing pages for further research — the state agencies don't currently expose per-mine deep links.