Silver Cloud Mine

Past Producer in Elko county in Nevada, United States with commodity Mercury
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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10045519
MRDS ID M233285
Record type Site
Current site name Silver Cloud Mine

Geographic coordinates

Geographic coordinates: -116.62705, 41.05323 (WGS84)

Site location context

Political divisions (FIPS codes)

Elko(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rock Creek Ranch(quadrangle 1:24,000 scale)

Tuscarora(quadrangle 1:100,000 scale)

McDermitt(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rock(hydrologic unit)

Humboldt(hydrologic accounting unit)

Black Rock Desert-Humboldt(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 Elko

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 037N 047E 25,26 Nevada

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore

Alteration

  • (Local) Silica Replacement-Formation Of S Opalite

Mineral occurrence model information

Model code 177
USGS model code 27a
Deposit model name Hot-spring Hg

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Glassy Rock > Obsidian
    Stratigraphic age (youngest) Miocene
    Stratigraphic age (youngest) Miocene

Nearby scientific data

(1) -116.62705, 41.05323

Economic information

Geologic structures

Type of structure Local
Structure description Deposit Along Trough Of N. Trending Syncline.

Ore body information

  • General form BLANKET
    Thickness 3.05M
    Length 457.2M

Controls for ore emplacement

  • Favorable Permeable Bed

Comments on the geologic information

  • THE ROCKS OF THE AREA CONSIST OF RHYOLITIC OBSIDIAN, ALTERRED TO A DENSE WHITE CHALCEDONIC ROCK, AND THE OVERLYING ASH IS LARGELY OPALIZED FROM THE CONTACT UPWARD FOR ABOUT 10 FT. CINNABAR IMPREGNATES THE LOWER 4 FT. OF THE OPALIZED ZONE IN SUFFICIENT AMOUNT TO FORM A BLANKET ORE, AND IT LOCALLY OCCURS DISSEMINATED IN LESSER AMOUNTS IN THE OVERLYING ASH. THE MINERALIZED BLANKET LIES IN THE TROUGH OF A NORTHERLY TRENDING SYNCLINE ABOUT 1,500 IN WIDTH.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Large
Significant No
Discovery year 1931
Year of first production 1931

Mining district

District name Ivanhoe

Comments on the workings information

  • SMALL OPEN PIT WITH A FEW DRIFTS AND STOPES IN THE DEEPER PORTIONS

Reference information

Bibliographic references

  • Deposit

    SMITH, R. M. (1976-56) MINERAL RESOURCES OF ELKO CO. NEV., USGS OPEN-FILE REPORT

  • Deposit

    BAILEY & PHOENIX (1944) QUICKSILVER DEPOSITS IN NEVADA, NEV. BUREAU OF MINES BULL 41

  • Deposit

    NELSON J. M. (1941) GEOLOGIC AND MINE MAPS OF THE SILVER CLOUD PROPERTY. N.B. OF M. MINING DIST. FILES

General comments

Subject category Comment text
Deposit CINNABAR OCCURS IN A BED OF RHYOLITIC OBSIDIAN ALTERRED TO A DENSE WHITE CHALCEDONIC ROCK AND OVERLYING ASH OPALIZED FROM THE CONTACT UPWARD FOR ABOUT 10 FEET. BLANKET ORE, AND IT LOCALLY OCCURS DISSEMINATED IN LESSER AMOUNTS IN OVERLYING ASH.
Deposit DISCOVERED IN 1931. THE BLANKET TYPE DEPOSIT WAS MINED BY A SMALL OPEN PIT. WITH A FEW DRIFTS AND STOPES IN THE DEEPER PORTIONS. A SERIES OF MINE MAPS AND GEOLOGIC MAPS OF THE PROPERTY ARE ON FILE W/ THE NEV. BUREAU OF MINES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1979 Kirkham, Richard A. Nevada Bureau of Mines and Geology

Beyond USGS

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

External references

Authoritative Nevada resources

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