| Deposit ID | 10093948 |
|---|---|
| MRDS ID | A010416 |
| Record type | Site |
| Current site name | Jensen Prospect |
| Alternate or previous names | Glacier Island, Claims: Portsmouth, Scotia Bell |
| Related records | 10113036 |
| Geographic coordinates: | -147.10172, 60.88764 (WGS84) |
|---|---|
| Location accuracy | 500(meters) |
Political divisions (FIPS codes)
Valdez-Cordova(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Seward D-1(quadrangle 1:63,360 scale)
Seward NE(quadrangle 1:100,000 scale)
Seward(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Eastern Prince William Sound(hydrologic unit)
Prince William Sound(hydrologic accounting unit)
South Central Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Chugach National Forest(National Forest)
National Forest FS(Type of land area)
FS(Federal land areas administered by FS)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Gold | Secondary |
| Silver | Secondary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Epidote | Gangue |
| Quartz | Gangue |
| Result | ASSAYS SHOW TRACE OF GOLD AND SILVER |
|---|
| Host or associated | Associated | ||||||
|---|---|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt | ||||||
| |||||||
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt |
| Rock unit name | Orla Group |
| Rock description | Orla Group |
| Strike | N20E-N5W |
|---|---|
| Dip | 65-70W |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discoverer | Jens Jensen |
| Type of workings | Surface/Underground |
|---|---|
| Name of workings | TUNNEL |
| Length | 152.4M |
| Type of workings | Surface/Underground |
|---|---|
| Name of workings | TUNNEL |
| Length | 76.2M |
| Type of workings | Surface/Underground |
|---|---|
| Name of workings | TUNNEL |
| Length | 91.44M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A010416 |
USGS BULLETIN 692, P. 146-147
USGS BULLETIN 963-B, P. 75-76
USGS MISCELLANEOUS FIELD STUDIES 880-A, LOCATION 189
USGS OPEN FILE 80-621, P. 118
| Subject category | Comment text |
|---|---|
| Deposit | SEVERAL SHOWINGS OF WHAT APPEARS TO BE THE SAME SHEAR ZONE IN A PRONOUNCED GULLY. THE ZONE CONSISTS OF SHATTERED GREENSTONE RECEMENTED BY QUARTZ AND SULFIDES. THE ZONE AVERAGES 4 FEET IN WIDTH, THOUGH THE MINERALIZED PORTION AVERAGES 5 TO 12 INCHES. ONE BODY OF SOLID CUPIFEROUS PYRITE IS 10 FEET WIDE AND A STREAK OF SOLID CHALCOPYRITE ALONG THE HANGING WALL IS 3 INCHES THICK. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1984 | Hirschmann, M. M. (Elliott, R. L.) | U.S. Geological Survey | |
| Editor | 30-MAY-1995 | Waller, Nichelle (Mosier, Dan) | U.S. Geological Survey | PARSED DATA INTO ORE BODY MULTIVALUED FIELDS |
| Editor | 30-MAY-1995 | Waller, Nichelle (Mosier, Dan) | U.S. Geological Survey | PARSED DATA INTO WORKINGS MULTIVALUED FIELDS |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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