| Deposit ID | 10002413 |
|---|---|
| MRDS ID | A013333 |
| Record type | Site |
| Current site name | Point Astley Silver-Zinc-Lead-Copper Prospect |
| Alternate or previous names | Oceanic Group, Point Astley, Alaska Ventures, Lucky Venture, Smudge, Lucky Star Claims |
| Related records | 10283086 |
| Geographic coordinates: | -133.63223, 57.70919 (WGS84) |
|---|---|
| Relative position | 0.7 MI. SE OF VABM HOLK |
Political divisions (FIPS codes)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Sumdum C-5 NW(quadrangle 1:24,000 scale)
Sitka NE(quadrangle 1:100,000 scale)
Sumdum(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Central Southeast Alaska(hydrologic accounting unit)
Southeast Alaska(hydrologic subregion)
Alaska(hydrologic region)
Federal lands
Tongass 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 |
|---|---|
| Zinc Critical | Primary |
| Silver | Primary |
| Lead | Secondary |
| Copper | Secondary |
| Gold | Tertiary |
| Materials | Type of material |
|---|---|
| Bornite | Ore |
| Chalcocite | Ore |
| Chalcopyrite | Ore |
| Covellite | Ore |
| Gold | Ore |
| Malachite | Ore |
| Silver | Ore |
| Sphalerite | Ore |
| Tetrahedrite | Ore |
| Pyrite | Gangue |
| Pyrrhotite | Gangue |
| Quartz | Gangue |
| Result | SAMPLES CONTAINED UP TO 9.0% ZN, 159.1 PPM (4.614 OZ/TON) AG, 1.1% PB, 0.58% CU, 0.17 OZ/TON AU. SAMPLES FROM 10 FT. SECTION OF WAVE-CUT BENCH AVERAGED 0.48% CU, 0.11% PB, 1.65% ZN, 0.2 OZ/TON AG. SAMPLES IN AND NEAR ADIT NO. 1 OVER 30 FT. SECTION AVERAGED 1.72% ZN, 0.18 OZ/TON AG, 0.07% CU. DATA FROM USGS B 1525, P. 117-118, TABLE 13. |
|---|
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist |
| (1) | -133.63223, 57.70919 |
|---|
| General form | LENS |
|---|---|
| Length | 411.48M |
| Development status | Prospect |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1897 |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A013333 |
USGS B 1525, P. 116-120, FIG. 24, 25, TABLE 13, PLATE 1 (1984)
USGS OF 78-698, P. 18-20 (1978)
USBM OFR 91-86, P. 66 (1986)
BAG-B-1525-FIG-24
| Subject category | Comment text |
|---|---|
| Deposit | DISSEMINATED SULFIDES AND MASSIVE SULFIDE LENSES UP TO 1 FT. WIDE AND 3 FT. LONG PARALLEL TO FOLIATION IN CHLORITE PHYLLITE AND SCHIST. SULFIDES MOSTLY PYRITE AND SPHALERITE WITH LESSER AMOUNTS OF GALENA, CHALCOPYRITE, BORNITE, TETRAHEDRITE, SECONDARY CHALCOCITE AND COVELLITE, TRACES OF MALACHITE, NATIVE SILVER, AND GOLD. TWO ZONES OF MINERALIZATION, ONE IN VICINITY OF ADITS NO. 1 AND 2, THE OTHER TO THE NW IN VICINITY OF INCLINED AND VERITICAL SHAFTS, ARE SEPARATED BY 700 FT. OF BEACH BARREN OF MINERALIZATION. QUARTZ VEINS UP TO 20 FT. WIDE ARE COMPOSED OF QUARTZ STRINGERS UP TO SEVERAL IN. WIDE WITH INTERVENING SCHIST LAYERS. DISSEMINATED SULFIDES OCCUR IN THE SCHIST LAYERS. |
| Deposit | PROSPECT STAKED BY GEORGE SIEFFART AND KEN MANNING IN 1983, WITH WINKIE DRILLING AND BLASTING DONE IN 1984-85. ; INFO.SRC : 1 PUB LIT |
| Deposit | THIS SITE NAME WAS CREATED BY THE REPORTER OR OTHER USGS EMPLOYEE BASED ON PROXIMITY TO SOME MAJOR GEOGRAPHIC FEATURE. |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-JUN-1987 | Leonard, Kenneth R. (Huber, Donald F.) | U.S. Geological Survey | |
| Editor | 14-SEP-1994 | Waller, Nichelle (Mosier, Dan) | U.S. Geological Survey | PARSED OUT HOST ROCK AND ASSOCIATED ROCK TYPES, AGES, UNIT NAMES, AND UNIT AGES. |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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