| Deposit ID | 10042983 |
|---|---|
| MRDS ID | M061386 |
| Record type | Site |
| Current site name | Shamrock |
| Alternate or previous names | Chisholm Copper |
| Related records | 10249569 |
| Geographic coordinates: | -122.97697, 42.60121 (WGS84) |
|---|---|
| Elevation | 549 |
| Relative position | 8 MI WEST OF SHADY COVE |
Political divisions (FIPS codes)
Jackson(county)
Oregon(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Boswell Mountain(quadrangle 1:24,000 scale)
Crater Lake(quadrangle 1:100,000 scale)
Medford(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Middle Rogue(hydrologic unit)
Southern Oregon Coastal(hydrologic accounting unit)
Oregon-Washington Coastal(hydrologic subregion)
Pacific Northwest(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management OR)
Bureau of Land Management OR BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Oregon | Jackson |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| Willamette | 034S | 002W | 19,20 | CENTER OF E4 (19) | Oregon |
| Commodity | Importance |
|---|---|
| Copper | Primary |
| Nickel Critical | Primary |
| Cobalt Critical | Tertiary |
| Platinum Critical | Tertiary |
| Materials | Type of material |
|---|---|
| Chalcopyrite | Ore |
| Pentlandite | Ore |
| Calcite | Gangue |
| Graphite | Gangue |
| Zoisite | Gangue |
| Result | APPROX. AVERAGE GRADE REPORTED FROM A 10-KG USBM SAMPLE OF REPRESENTATIVE ORE CONTAINS 1.3% NI, 1.1% CU, 0.07% CO, AND 0.03 OZ/TON PT. USBM SAMPLE (SHELTON) GAVE 2.2% NI, 0.78% CU, 0.01% CO. 660 PPB PD, 23 PPB PT, 48 PPB RH IN SULFIDE-RICH SAMPLE. SAMPLE OF CLAY GOUGE YIELDED 310 PPB AU, 616 PPB AG, 6.81 PPM BI, 240 PPM CO, 2000 PPM CR, 6524 PPM CU, 9.45 PPM MO, 4760 PPM NI, 9.5 PPM SE, 1.7 PPM TE, 370 PPM ZN (WILEY AND HLADKY, 1991) |
|---|
| Model code | 13 |
|---|---|
| USGS model code | 7a |
| Deposit model name | Synorogenic-synvolcanic Ni-Cu |
| Mark3 model number | 19 |
| Host or associated | Host |
|---|---|
| Rock type | Metamorphic Rock > Schist > Mica Schist |
| Rock unit name | May Creek Schist; |
| Rock description | May Creek Schist; |
| (1) | -122.97697, 42.60121 |
|---|
| General form | DISSEMINATED, BLEBS, VEINLETS, MASSES |
|---|---|
| Strike | N60E |
| Dip | 55SE |
| Length | 30.48M |
| Width | 7.62M |
| Depth to bottom | 30.48M |
| Development status | Occurrence |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1900 |
| Discoverer | W.P. Chisholm |
| Ownership category | Private |
|---|
| Type | Operator |
|---|---|
| Owner | Freeport And Boise Cascade |
| First year | 1988 |
| Type of workings | Surface/Underground |
|---|---|
| Length | 457.2M |
| Overall length | 502.92M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | M061386 | |
| U.S. Bureau of Mines | Minerals Availability System | MAS | 0410290059 |
HUNDHAUSEN, R.J., 1952, INVESTIGATION OF SHAMROCK COPPER-NICKEL MINE, JACKSON COUNTY, OREGON: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 4895, P. 1-8.
SHELTON, J.E., 1956, BENEFICIATION STUDIES OF NICKELIFEROUS ORES FROM THE SHAMROCK MINE, JACKSON COUNTY, OREG., AND THE CONGRESS MINE, FERRY COUNTY, WASH.: U.S. BUREAU OF MINES REPORT OF INVESTIGATIONS 5261, P. 6-8.
RAMP, LEN, 1978, INVESTIGATIONS OF NICKEL IN OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES MISCELLANEOUS PAPER NO. 20, P. 7, 57-58.
ASHLEY, R.P., AND PETERSON, J.A., 1991, U.S. GEOLOGICAL SURVEY, FIELD EXAM.
FERNS, M.L., 1989, MINING ACTIVITY AND EXPLORATION IN OREGON, 1988: OREGON GEOLOGY, V. 51, NO. 2, P. 29.
WILEY, T.J., AND HLADKY, F.R., 1991, GEOLOGY AND MINERAL RESOURCES MAP OF THE BOSWELL MOUNTAIN QUADRANGLE, JACKSON COUNTY, OREGON: OREGON DEPARTMENT OF GEOLOGY AND MINERAL INDUSTRIES GEOLOGICAL MAP SERIES GMS-70, SCALE 1:24,000.
1949 DIREXPL HUNDHAUSEN, USB
| Subject category | Comment text |
|---|---|
| Deposit | TWO ORE BODIES; MINE ORE BODY (DATA ABOVE) AND SURFACE ORE BODY (200 X 200 X 38 FT). ORE BODY TERMINATED AT EITHER END BY FAULTS |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-MAY-1976 | Johnson, Maureen G. | U.S. Geological Survey | |
| Updater | 01-APR-1979 | Bradley, Robin (Walker, George W.) | U.S. Geological Survey | |
| Updater | 01-JUL-1991 | Peterson, Jocelyn A. | U.S. Geological Survey |
Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.