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  3. Mineral Resource Data System (MRDS)

Unnamed Mine

Past Producer in Washoe county in Nevada, United States with commodities Gold, Copper
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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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10050787
MRDS ID N000106
Record type Site
Current site name Unnamed Mine
Alternate or previous names NBMG Sample Site # 4140, #4141, #4142

Geographic coordinates

Geographic coordinates: -119.97934, 39.62683 (WGS84)

Site location context

Political divisions (FIPS codes)

Washoe(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Reno NW(quadrangle 1:24,000 scale)

Reno(quadrangle 1:100,000 scale)

Reno(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Honey-Eagle Lakes(hydrologic unit)

North Lahontan(hydrologic accounting unit)

North Lahontan(hydrologic subregion)

California(hydrologic region)

Federal lands

Humboldt-Toiyabe National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Nevada Washoe

Public Land Survey System information

Meridian Township Range Section Fraction State
20N 18E 04,05 Nevada

Commodities

Commodity Importance
Gold Primary
Copper Primary

Materials information

Materials Type of material
Tourmaline Ore

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Welded Tuff
    Rock unit name Peavine Sequence
    Rock description Peavine Sequence

Nearby scientific data

(1) -119.97934, 39.62683
ListMap

Economic information

Comments on the geologic information

  • THE WELDED TUFFS ARE MEDIUM PURPLISH GRAY WEATHERING DARK GRAY ROCKS WHICH REPRESENT METAMORPHOSED (GREEN SCHIST FACIES) RHYODACITE IGNIMBRITES. THE IGNIMBRITES HAVE A LIGHT-COLORED SILICIC MATRIX WITH PHENOCRYSTS OF PINK TO WHITE ALBITIZED PLAGIOCLASE, AND PROBABLY ORIGINALLY BIOTITE. NO PHENOCRYSTIC QUARTZ WAS OBSERVED. THE TUFFS GENERALLY CONTAIN COMPACTED PUMICE AND LITHIC FRAGMENTS, AND ARE MODERATELY CRYSTAL-RICH. LITHIC CONTENT VARIES FROM LOW TO HIGH, AND CONSISTS MAINLY OF FRAGMENTS OF ANDESITE AND RELATED INTERMEDIATE-COMPOSITION VOLCANIC ROCKS; QUARTZ PHENOCRYSTS ARE GENERALLY ABSENT IN THE LITHIC FRAGMENTS AS WELL. LITHICS ARE GENERALLY ABOUT 1 CM IN AVERAGE SIZE, LOCALLY PUMICE IS UP TO 15 CM LONG AND 2 CM THICK; USUALLY IT IS 1-2 CM LONG. AT SAMPLE SITE 4140 A QUARTZ TOURMALINE VEIN WITH SPARSE COPPER MINERALIZATION IS EXPOSED. ALTHOUGH NO VEIN ATTITUDE CAN BE DETERMINED BECAUSE OF POOR OUTCROP THE WORKINGS TREND TOWARD SITE 4142 (A N35E TREND) WHEN SIMILAR VEIN
  • MINERALIZATION IS OBSERVED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Peavine

Comments on the workings information

  • FOUR SHORT ADITS ( 3 AT SITE 4140, ONE POSSIBLY 50M) ALL CAVED AT PORTAL, NUMEROUS PROSPECT PITS. ONE ADIT IS AT SITE 4142. BULLDOZER CUTS AT SITE 4141. ONLY BULLDOZER CUTS ARE SHOWN ON THE TOPOGRAPHIC MAP.

Reference information

Bibliographic references

  • Deposit

    UNNAMED MINE, PEAVINE DISTRICT, WASHOE COUNTY, GARSIDE, L.J., SAMPLE SITE VISIT 7/7/89, NBMG UNPUBLISHED MINING DISTRICT FILES (TINGLEY FILES)

General comments

Subject category Comment text
Deposit SAMPLES #4140, #4141 AND #4142 ARE OF SELECT QUARTZ-TOURMALINE VEIN MATTER FROM SEVERAL VEINS IN A MINERALIZED AREA OF ABOUT 0.25 SQUARE KM. OXIDE COPPER MINERALS OCCUR IN SOME SAMPLES, AS WELL AS IRON AND MANGANESE OXIDE MINERALS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1989 Garside, L. J. Nevada Bureau of Mines and Geology
Updater 01-DEC-1991 Moyer, Lorre A. (Marcus, S.M.) U.S. Geological Survey

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.