| Deposit ID | 10111483 |
|---|---|
| MRDS ID | N000431 |
| Record type | Site |
| Current site name | Afterthought |
| Alternate or previous names | Copper King, Quinn-Newman, Hunchback, Eureka, Riovista, Molalla |
| Related records | 10222506 |
| Geographic coordinates: | -118.7843, 39.16658 (WGS84) |
|---|---|
| Elevation | 1524 |
Political divisions (FIPS codes)
Churchill(county)
Nevada(state)
United States(country)
North America(continent)
Land(continent)
USGS map quadrangles
Russell Spit(quadrangle 1:24,000 scale)
Fallon(quadrangle 1:100,000 scale)
Reno(quadrangle 1:250,000 scale)
Hydrologic units (watersheds)
Gabbs Valley(hydrologic unit)
Central Nevada Desert Basins(hydrologic accounting unit)
Central Nevada Desert Basins(hydrologic subregion)
Great Basin(hydrologic region)
Federal lands
Bureau of Land Management(Bureau of Land Management NV)
Bureau of Land Management NV BLM(Type of land area)
BLM(Federal land areas administered by BLM)
| Country | State | County |
|---|---|---|
| United States | Nevada | Churchill |
| Meridian | Township | Range | Section | Fraction | State |
|---|---|---|---|---|---|
| 014N | 028E | 11,12,13,14 | Nevada |
| Commodity | Importance |
|---|---|
| Iron | Primary |
| Copper | Primary |
| Gold | Primary |
| Zinc Critical | Primary |
| Lead | Primary |
| Molybdenum | Primary |
| Materials | Type of material |
|---|---|
| Argentite | Ore |
| Calcite | Ore |
| Cerargyrite | Ore |
| Chalcopyrite | Ore |
| Gold | Ore |
| Graphite | Ore |
| Hematite | Ore |
| Limonite | Ore |
| Malachite | Ore |
| Molybdenite | Ore |
| Pyrite | Ore |
| Quartz | Ore |
| Silver | Ore |
| Stilbite | Ore |
| Tourmaline | Ore |
| Result | DRILL RESULTS GIVEN IN DETAIL IN SATKOSKI AND OTHERS. MAXIMUM VALUES WERE 951 PPM CU AND 46 PPM MO BETWEEN 40-70' IN HOLE AF-18, QUARTZ VEIN SAMPLE (WR-10) RETURNED 64 PPM AG (1.87 OZ/TON). THE CERT STUDY (1984) MENTIONS ANOMALOUS AU, BI, PB, AG, ZN, AS, CU, AND V VALUES. |
|---|
| Model code | 62 |
|---|---|
| USGS model code | 18d |
| Deposit model name | Skarn Fe |
| Host or associated | Associated | ||||
|---|---|---|---|---|---|
| Rock type | Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite | ||||
| |||||
| Host or associated | Host |
|---|---|
| Rock type | Sedimentary Rock > Carbonate > Limestone |
| (1) | -118.7843, 39.16658 |
|---|
| Type of structure | Regional |
|---|---|
| Structure description | Walker Lane, In An Area With Right Lateral N20w To N40w Faults Which Correlate With Other Areas Of Possible Mineralization (Boulder, Hottentot, Calico) (Satkoski, P. 78). Nw Faults Offset In Places By Ne Faults. |
| Type of structure | Local |
| Structure description | Shearing. Fault Trending N50e Separates Quartz Monzonite From More Massive Granodionite. Later Quartz Veins. |
| Strike | NE |
|---|---|
| Dip | S |
| Development status | Past Producer |
|---|---|
| Commodity type | Metallic |
| Deposit size | Small |
| Significant | No |
| Discovery year | 1963 |
| Type of workings | Surface/Underground |
|---|---|
| Overall depth | 100.58M |
| Overall length | 3218.6M |
| Overall width | 2413.95M |
| Agency | Database name | Acronym | Record ID | Notes |
|---|---|---|---|---|
| USGS | Mineral Resources Data System | MRDS | N000431 |
JOHN, D.A., AND SHERLOCK, M.G., 1991, MAP SHOWING MINES AND PROSPECTS IN THE RENO 1 X 2 QUAD, NV AND CA, USGS MF 2154B, SYMBOL T6.
SATKOWSKI, J.J., LAMBETH, R.H., WHITE, W.W., AND DUNN, M.D., 1985, FIELD INVENTORY OF THE MINERAL RESOURCES AND COMPILATION OF EXPLORATION DATA, WALKER RIVER INDIAN RESERVATION, NV., USBM, BIA REPORT 21-11.
COUNCIL OF ENERGY RESOURCE TRIBES, 1984, AN ASSESSMENT OF HYDROTHERMAL SYSTEMS ON PORTIONS OF THE WALKER RIVER RESERVATION, AS RELATED TO THE FORMATION OF ENERGY AND METAL ACCUMULATIONS, UNPUBLISHED REPORT 07-36-38-557.
BENWAY DISTRICT, LYON COUNTY, UNPUBLISHED MINING DISTRICT FILES (TINGLEY), NBMG.
SCHRADER, F.C., 1947, CARSON SINK AREA, NEVADA, USGS, UNPUBLISHED REPORT BASED ON FIELD WORK 1911-1920, IN NBMG FILES.
LAWRENCE, E.F., 1969, GEOLOGICAL AND GEOPHYSICAL INVESTIGATIONS OF THE MINERAL DEPOSITS OF THE CALICO AREA, MINERAL COUNTY, NV, UNIVERSITY OF CALIFORNIA, PH. D. DISSERTATION.
| Subject category | Comment text |
|---|---|
| Deposit | SERIES OF 10 OR MORE VEINS THAT STRIKE N75E AND DIP STEEPLY S. A FEW VEINS IN THE SOUTHERN PART OF THE AREA DIP N. VEINS ARE 3-20 FT. WIDE AND MAY EXTEND FOR 1 MILE. COPPER KING VEIN IS 4 FT. WIDE, DIPS 70 S, REPORTEDLY CONTAINED 10% CU, 30 OZ. AG, AND $2.00 AU/TON (SCHRADER, P. 294). EUREKA LODE IN A SHEAR ZONE, STIKES N60E, DIPS 80S. IT IS LONGER THAN 3,000 FT. AND 60 FT. WIDE IN PLACES. A 10-12 IN. WIDTH OF VEIN REPORTEDLY AVERAGED "50 PERCENT AND 22 OUNCES OF AG AND $3.40 IN GOLD"/TON. TIOVISTA REPORTEDLY CARRIED ORE AVERAGING $6.50 (AU)/TON (SCHRADER). |
| Deposit | AFTERTHOUGHT IS A BLIND PROSPECT. APPARENTLY BENEATH DEPOSITS DESCRIBED BY SCHRADER IP/RESISTIVITY SURVEYS FOUND ANOMALIES IN THIS AREA. THE SPECIFIC LOCATIONS OF COPPER KING, QUINN-NEWMAN, HUNCHBACK, EUREKA, RIOVISTA, MOLALLA ARE NOT KNOWN. THEY ARE INCLUDED HERE ALONG WITH INFORMATION FROM SCHRADER BECAUSE THEY APPEAR TO LIE WITHIN THE MORE RECENTLY IDENTIFIED AFTERTHOUGHT PROSPECT. ; INFO.SRC : 1 PUB LIT |
| Type | Date | Name | Affiliation | Comment |
|---|---|---|---|---|
| Reporter | 01-APR-1991 | Doebrich, J.L. | U.S. Geological Survey | |
| Updater | 01-JAN-1992 | Marcus, S. | U.S. Geological Survey |
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.