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Seven Troughs Royal Group ?

Occurrence in Pershing county in Nevada, United States with commodities Gold, Silver, Barium-Barite, Arsenic
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10047327
MRDS ID M242612
Record type Site
Current site name Seven Troughs Royal Group ?
Alternate or previous names NBMG Sample Site 1492
Related records 10232500

Geographic coordinates

Geographic coordinates: -118.73099, 40.53906 (WGS84)
Elevation 1610

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rocky Canyon(quadrangle 1:24,000 scale)

Eugene Mountains(quadrangle 1:100,000 scale)

Lovelock(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Granite Springs Valley(hydrologic unit)

Truckee(hydrologic accounting unit)

Central Lahontan(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)

Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 031N 029E 21 CENTER Nevada

Comments on the location information

  • INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Gold Primary
Silver Primary
Barium-Barite Critical Tertiary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Gold Ore

Alteration

  • (Local) Kaolinization Of Rhyolite; Opalization Near Contact

Analytical data

Result SAMPLE 1492 CONTAINS 2% FE, 0.2% MG, 1.5% CA, 0.15% TI, 100 PPM MN, 0.5 PPM AG, 2000 PPM AS, 50 PPM B, 5000 PPM BA, 5 PPM BE, 10 PPM CR, 15 PPM CU, 70 PPM LA, 15 PPM MO, 5 PPM NI, 70 PPM PB, 100 PPM SB, 7 PPM SC, 150 PPM SR, 5 PPM V, 50 PPM Y, 200 PPM ZR

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -118.73099, 40.53906
ListMap

Economic information

Ore body information

  • General form TABULAR
    Strike N 65 W
    Dip 90

Controls for ore emplacement

  • Shear Zone N 65 W, 90

Economic information about the deposit and operations

Development status Occurrence
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Farrell District; Stone House District; Seven Troughs District (Northern Part)

Land status

Ownership category BLM Administrative Area

Comments on the workings information

  • OLD SHAFT; OTHER WORKINGS ON HILL TO SOUTH

Comments on development

  • INACTIVE IN 1984

Reference information

Bibliographic references

  • Deposit

    TINGLEY, J.V., 1984, NBMG FIELD EXAMINATION 7 JUN 84, AND SAMPLE ANALYSIS.

  • Deposit

    JOHNSON, M.G., 1977, NBMG BULL 89, PL. I.

  • Deposit

    SHAMBERGER, H.A., 1972, HISTORIC MINING CAMPS OF NEVADA-SEVEN TROUGHS; NEVADA HISTORICAL PRESS.

General comments

Subject category Comment text
Deposit SHAFT SUNK ON SHEAR ZONE IN KAOLINIZED RHYOLITE. WIDE ZONE WITH FE-OXIDE STAIN, (NO QUARTZ SEEN); FE OXIDE STRINGERS 2-3 IN THICK ALONG SHEAR ZONE. WORKINGS ON HILL TO SOUTH EXPOSE CONTACT BETWEEN TWO RHYOLITE FLOWS; BASE FLOW IS BRECCIATED, MODERATELY OPALIZED NEAR CONTACT. FE OXIDE STAINED UPPER FLOW IS BANDED, FRIABLE, MORE EVEN-TEXTURED-NO SIGNS OF MINERALIZATION.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1985 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site

Authoritative Nevada resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.