Black Top Claims

Occurrence in Humboldt county in Nevada, United States with commodities Manganese, Iron
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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10045122
MRDS ID M232789
Record type Site
Current site name Black Top Claims

Geographic coordinates

Geographic coordinates: -117.51485, 40.73934 (WGS84)
Relative position ABOUT 17 MILES SOUTH OF GOLCONDA

Site location context

Political divisions (FIPS codes)

Humboldt(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sheep Ranch Canyon(quadrangle 1:24,000 scale)

Winnemucca(quadrangle 1:100,000 scale)

Winnemucca(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Humboldt(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 Humboldt

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N 041E 08 N2 Nevada

Comments on the location information

  • ON NW SIDE OF BUFFALO MOUNTAIN ON EAST SIDE OF A SMALL GULCH FROM BLACK HAWK CLAIMS. UTM IS TO ONE CENTRAL PIT OF -SEVERAL SCATTERED OVER A 800-FT RADIUS

Commodities

Commodity Importance
Manganese Critical Primary
Iron Secondary

Analytical data

Result ASSAY RESULT: 14.6% MN, 1.3% FE, 2.1% AL2 O3

Mineral occurrence model information

Model code 74
USGS model code 19b
Deposit model name Replacement Mn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Havallah Formation
    Rock description Havallah Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert

Nearby scientific data

(1) -117.51485, 40.73934

Economic information

Ore body information

  • General form BLANKET, PODS
    Strike N20-45W
    Dip 40-85NE
    Thickness 2.13M
    Length 12.19M

Controls for ore emplacement

  • Sedimentary Beds

Comments on the geologic information

  • ORE OCCURS IN A 7-FT THICK BED OF INTERMIXED MN-OXIDES AND SILICATE. MN ORE IS IN PODS 2-7 FT. THICK AND UP TO 40 FT. LONG, PARALLEL TO BEDDING.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Buffalo Mountain Mining Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Knight, Edward H.
    First year 1959

Comments on the workings information

  • 3 PITS AND SEVERAL TRENCHES

Reference information

Bibliographic references

  • Deposit

    SHIBLER, B.K. & WELLS R.R., 1951, CONCENTRATION OF OXIDE AND SILICATE MANGANESE ORES FROM THE VICINITY OF GOLCONDA, NEVADA: U.S.B.M. REPORT OF INVESTIGATIONS 4754., P. 1, 6-8

  • Deposit

    TRENGROVE, R.R., 1959, RECONNAISSANCE OF NEVADA MANGANESE DEPOSITS: U.S.B.M. REPT. OF INV. 5446., P. 17-18

  • Deposit

    SOUTHERN PACIFIC CO, 1964, MINERALS FOR INDUSTRY, P. 96.

  • Deposit

    USBM, 1983 MILS DATA.

General comments

Subject category Comment text
Deposit LENSES OF MN ORE DEPOSITED CONTEMPORANEOUSLY WITH THE ENCLOSING SEDIMENTARY BEDS.. THIS PROSPECT IS OFTEN LISTED WITH THE MN DEPOSITS OF THE BLACK DIABLO DISTRICT IN PERSHING COUNTY, ACROSS PUMPE-RNICKEL VALLEY TO THE SOUTHWEST. THE DEPOSITS ARE SIMILAR IN N-ATURE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1981 La Pointe, D. D. Nevada Bureau of Mines and Geology
Updater 01-SEP-1994 Li, Zhiping (Peters, S.) U.S. Geological Survey

Beyond USGS

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

Authoritative Nevada resources

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