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Horseshoe Basin

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

Geologic information

Identification information

Deposit ID 10042438
MRDS ID M060233
Record type Site
Current site name Horseshoe Basin
Alternate or previous names Horseshoe Basin Diatomite Mine, Eagle-Picher Diatomite Quarry, NBMG Sample Site 2728;
Related records 10295226

Geographic coordinates

Geographic coordinates: -118.73016, 40.28572 (WGS84)
Elevation 1634

Site location context

Political divisions (FIPS codes)

Pershing(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Trinity Pass(quadrangle 1:24,000 scale)

Lovelock(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)

Geographic areas

Country State County
United States Nevada Pershing

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 028N 029E 21 N Nevada

Comments on the location information

  • APPROXIMATELY 7 MILES WEST OF TRINITY PASS ON NORTH SIDE OF NEVADA RTE. 399. ACCESS IS VIA IMPROVED MINE ROAD. ; INFO FROM LAND.ST :(1972)

Commodities

Commodity Importance
Diatomite Primary

Materials information

Materials Type of material
Diatomite Ore

Alteration

  • (Local) High-Angle Faults Offset Bed 3 Feet

Analytical data

Result SAMPLE 2728 OF DIATOMITE CONTAINS 1 FE, 0.2 % MG, 0.2 % CA, 0.1 % TI, 100 PPM MN, 150 PPM B, 500 PPM BA, 5 PPM BE, 15 PPM CU, 50 PPM MO, 5 PPM NI, 300 PPM SR, 100 PPM V, AND 50 PPM ZR.

Mineral occurrence model information

Model code 222
USGS model code 31s
Deposit model name Lacustrine diatomite

Host and associated rocks

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

Nearby scientific data

(1) -118.73016, 40.28572
ListMap

Economic information

Ore body information

  • General form BLANKET
    Strike N-S
    Dip 5-10W
    Thickness 18.29M

Controls for ore emplacement

  • Stratagraphic

Comments on the geologic information

  • STRATIGRAPHIC SEQUENCE IN THE AREA, BOTTOM TO TOP IS: A) GRAY UNBEDDED FOOTWALL ASH, WITH SOME THIN INTERBEDS OF DIATOMITE; B) A LOWER DIATOMITE UNIT ABOUT 20 FEET THICK; C) ASH, GRIT, AND CLAYEY DIATOMITE 1.5-3.1 FEET THICK; D) MIDDLE DIATOMITE UNIT ABOUT 30 FEET THICK; E) ASH UNIT ABOUT 15 FEET THICK; F) UPPER DIATOMITE UNIT 15-25 FEET THICK, COMMONLY WITH UNDULATORY UPPER SURFACE; G) OVERLYING PYROCLASTIC ROCK WHICH CAPS THE RIDGE ABOVE AND WEST OF THE PIT. EXCEPT FOR THE UNDULATIONS, ALL CONTACTS ARE SHARP AND FAIRLY REGULAR. A FEW HIGH-ANGLE FAULTS WITH OFFSETS OF ABOUT 3 FEET CUT THE SEDIMENTARY ROCKS.

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Deposit size Large
Significant No

Mining district

District name Velvet District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Eagle-Picher Industries, Inc.
    First year 1984

Comments on the workings information

  • CURVED PIT FOLLOWING CONTOUR FOR LENGTH OF 1.2 MILES, AVERAGING 400 FT WIDE WITH PIT FACE WEST AVERAGING ABOUT 60 FT HIGH.

Comments on development

  • INTERMITTENTLY ACTIVE MINE ; MILL.CAP : .

Reference information

Bibliographic references

  • Deposit

    PAPKE, K.G., 1984, FIELD EXAMINATION AND SAMPLE ANALYSIS: NBMG UNPUBLISHED (TINGLEY) REPORT.

  • Deposit

    STAFF, 1985, A MINERAL INVENTORY OF THE PARADISE-DENIO AND SONOMA-GERLACH RESOURCE AREAS, WINNEMUCCA DISTRICT, NEVADA: NBMG OFR 85-3.

  • Deposit

    JOHNSON, M.G., 1977, GEOLOGY AND MINERAL DEPOSITS OF PERSHING COUNTY NEVADA: NBMG BULL. 89, P. 99-100, PL. 1.

  • Deposit

    INFO.SRC : 1 PUB LIT; 2 UNPUB REPT; 3 FIELD OBSER

General comments

Subject category Comment text
Deposit DIATOMITE UNITS ARE EXPOSED CONTINUOUSLY IN THE FACE OF THE PIT WHICH RUNS ROUGHLY N-S. STRATIGRAPHIC SEQUENCE IN THE AREA, BOTTOM TO TOP IS: A) GRAY UNBEDDED FOOTWALL ASH, WITH SOME THIN INTERBEDS OF DIATOMITE; B) A LOWER DIATOMITE UNIT ABOUT 20 FT THICK; C) ASH, GRIT, AND CLAYEY DIATOMITE 1.5-3.1 FT THICK; D) MIDDLE DIATOMITE UNIT ABOUT 30 FT THICK; E) ASH UNIT ABOUT 15 FT THICK; F) UPPER DIATOMITE UNIT 15-25 FT THICK, COMMONLY WITH UNDULATORY UPPER SURFACE; G) OVERLYING PYROCLASTIC ROCK WHICH CAPS THE RIDGE ABOVE AND WEST OF THE PIT. EXCEPT FOR THE UNDULATIONS, ALL CONTACTS ARE SHARP AND FAIRLY REGULAR. A FEW HIGH-ANGLE FAULTS WITH OFFSETS OF ABOUT 3 FT CUT THE SEDIMENTARY ROCKS. THE DIATOMITE IS INDISTINCTIVELY BEDDED BETWEEN BEDDING PLANES 0.5-4 FT APART. MOST OF THE DIATOMITE IS WHITE; VERY LOCALLY THIN POD-LIKE AREAS ARE SLIGHTLY IRON-STAINED. THE DIATOMITE IS OF GOOD QUALITY; MELOSIRA IS THE PRINCIPAL DIATOM PRESENT.
Deposit THIS RECORD HAS BEEN MERGED WITH M242882, WHICH HAS BEEN DELETED.
Deposit DIATOMITE UNITS ARE EXPOSED CONTINUOUSLY IN THE FACE OF THE PIT WHICH RUNS ROUGHLY NORTH-SOUTH. THE DIATOMITE IS INDISTINCTIVELY BEDDED BETWEEN BEDDING PLANES 0.5 TO 4 FEET APART. MOST OF THE DIATOMITE IS WHITE; VERY LOCALLY THIN POD-LIKE AREAS ARE SLIGHTLY IRON-STAINED. THE DIATOMITE IS OF GOOD QUALITY; MELOSIRA IS THE PRINCIPAL DIATOM PRESENT.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1973 Johnson, Maureen G. Nevada Bureau of Mines and Geology
Updater 01-MAR-1987 La Pointe, D.D. (Tingley, J.V.) Nevada Bureau of Mines and Geology
Updater 01-APR-1993 Phinisey, J. D. (Marcus, S.) U.S. Geological Survey
Updater 01-OCT-1993 Humphries, S. E. (Marcus, S.) U.S. Geological Survey

Beyond USGS

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

External references

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.