| Deposit ID | 10002635 |
|---|---|
| MRDS ID | A015073 |
| Record type | Site |
| Current site name | Otter Creek |
| Geographic coordinates: | -157.93571, 62.45023 (WGS84) |
|---|---|
| Relative position | SEE LOCATION COMMENTS |
Political divisions (FIPS codes)
Yukon-Koyukuk(Census area)
Alaska(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Iditarod B-4(quadrangle 1:63,360 scale)
Iditarod SW(quadrangle 1:100,000 scale)
Iditarod C(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Alaska(hydrologic region)
Federal lands
BLM(Federal land areas administered by BLM)
| Country | State |
|---|---|
| United States | Alaska |
| Commodity | Importance |
|---|---|
| Gold | Primary |
| Silver | Secondary |
| Mercury | Tertiary |
| Antimony Critical | Tertiary |
| Chromium Critical | Tertiary |
| Tungsten Critical | Tertiary |
| Tin Critical | Tertiary |
| Lead | Tertiary |
| Materials | Type of material |
|---|---|
| Gold | Ore |
| Garnet | Gangue |
| Ilmenite | Gangue |
| Magnetite | Gangue |
| Pyrite | Gangue |
| Cassiterite | Unknown |
| Chromite | Unknown |
| Cinnabar | Unknown |
| Galena | Unknown |
| Scheelite | Unknown |
| Stibnite | Unknown |
| Host or associated | Associated | ||
|---|---|---|---|
| Rock type | Plutonic Rock > Granitoid > Monzonite | ||
| |||
| Host or associated | Host |
|---|---|
| Rock type | Unconsolidated Deposit > Gravel |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Shale |
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Clastic Sedimentary Rock > Sandstone |
| Host or associated | Host |
|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Mafic Volcanic Rock > Basalt |
| (1) | -157.93571, 62.45023 |
|---|
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1908 |
| Year of first production | 1909 |
| Year of last production | 1966 |
| District name | Iditarod |
|---|
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | A015073 | |
| USGS | Alaska Resource Data File | ARDF | ID111 | |
| USGS | Mineral Resources Data System | MRDS | D002701 | |
| USGS | Mineral Resources Data System | MRDS | A010752 |
MERTIE, J.B., JR., 1936, MINERAL DEPOSITS OF THE RUBY-KUSKOKWIM REGION, ALASKA: U.S. GEOLOGICAL SURVEY BULLETIN 864-C, 115-245.
MALONEY, R.P., 1962, TRENCHING AND SAMPLING OF THE RHYOLITE MERCURY PROSPECT, KUSKOKWIM RIVER BASIN, ALASKA: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 6141, 43 P.
COBB, E.H., COMPILER, 1972, METALLIC MINERAL RESOURCES MAP OF THE IDITAROD QUADRANGLE, ALASKA: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-363, SCALE 1:250,000.
COBB, E.H., 1976, SUMMARY OF REFERENCES TO MINERAL OCCURRENCES (OTHER THAN MINERAL FUELS AND CONSTRUCTION MATERIAL) IN THE IDITAROD AND OPHIR QUADRANGLES, ALASKA: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 76-576, 101 P.
USBM REPT. INV. 5991, P. 8, 17, 21.
BAG-MF-363-31
| Subject category | Comment text |
|---|---|
| Deposit | GOLD IS DEPOSITED IN BOTH TERRACE AND MODERN STREAM CHANNELS FROM GRANITE CREEK ABOUT 5 MILES TO FLAT. MOST COARSE GOLD IS DEPOSITED ON AND IN CRACKS IN MONZONITE BEDROCK NEAR DISCOVERY. GOLD LOWERS IN GRADE PROGRESSIVELY DOWNSTREAM. OVERBURDEN IS 10-18 FT. THICK; 2-6 FT. OF GRAVEL OVERLAIN BY 4-12 FT. OF FROZEN MUCK. TOP 2-6 FT OF BEDROCK WAS TAKEN UP TO RECOVER GOLD IN CREVICES. |
| Deposit | STREAM GRADIENT UNDER 100 FT. PER MILE. GLEN GULCH PLACERS INCLUDED WITH OTTER CREEK. |
| 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-MAR-1987 | Powers, M.T. (Huber, D.F.) | U.S. Geological Survey | ARDF AND MRDS MERGED RECORD |
| Updater | 01-MAY-1994 | Powers, M.T. (Huber, D.F.) | U.S. Geological Survey | |
| Editor | 06-MAR-1998 | Mason, George | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.
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