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Las Animas Placers

Producer in Sierra county in New Mexico, United States with commodities Gold, Silver, Osmium, Iridium, Platinum
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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. Geologic structures
  13. Ore body information
  14. Controls for ore emplacement
  15. Economic information about the deposit and operations
  16. Mining district
  17. Land status
  18. Ownership information
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10038244
MRDS ID M045549
Record type Site
Current site name Las Animas Placers
Alternate or previous names Luxemburg Placers: Occurrences, Grayback Gulch, Hunkidori Gulch, Greenhorn Gulch, Slapjack Hill, Jones Hill, Gold Dust Placers: Occurrences, Gold Run Gulch, Little Gold Run Gulch: Other Occurrences, Dutch Gulch, Wicks Gulch, Rattlesnake Gulch, Bonanza Gulch

Geographic coordinates

Geographic coordinates: -107.50199, 32.9515 (WGS84)
Elevation 1585
Location accuracy 1000(meters)
Relative position 3 MI NORTHEAST OF HILLSBORO ADJACENT TO ANIMAS HILLS, Within A Radius Of 3,000 Ft

Site location context

Political divisions (FIPS codes)

Sierra(county)

New Mexico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hillsboro(quadrangle 1:24,000 scale)

Hatch(quadrangle 1:100,000 scale)

Las Cruces(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Caballo(hydrologic unit)

Rio Grande-Caballo(hydrologic accounting unit)

Rio Grande-Mimbres(hydrologic subregion)

Rio Grande(hydrologic region)

Geographic areas

Country State County
United States New Mexico Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 015S;015S;016S;016S 006W;007W;006W;007W 29,30,31,32,33;25,36;04,05,06,07,08,18;01 New Mexico

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Osmium Tertiary
Iridium Critical Tertiary
Platinum Critical Tertiary

Materials information

Materials Type of material
Gold Ore
Iridosmine Ore
Silver Ore
Limonite Gangue
Magnetite Gangue
Pyrite Gangue

Alteration

  • (Local) Oxidation Of Auriferous Pyrite To Pseudomorphs Of Limonite Which Retain Gold Gives The Black Sand Concentrates A Commercial Value For Smelter Treatment.

Analytical data

Result AU FINENESS 900, 927

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Pleistocene
    Stratigraphic age (youngest) Pleistocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Latite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Rock unit name Santa Fe
    Rock description Santa Fe

Nearby scientific data

(1) -107.50199, 32.9515
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Fault With About 2,000 Ft Displacement
Type of structure Local
Structure description Quartz Monzonite Porphyry And Mineralized Veins Occur 2 Mi East And Upstream From Placer Sites. A Caliche Layer Separates Gold-Bearing Gravels From Barren Gravels.

Ore body information

  • General form STREAM SEDIMENT DEPOSITS

Controls for ore emplacement

  • Caliche Horizon Usually Separates Upper Part Of Fan Containing Andesite, Latite, Monzonite, And Gold Fragments From Lower Barren Part Of Fan Containing Rhyolite Fragments.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Medium
Significant No
Year of first production 1877
Year of last production 1975

Mining district

District name Hillsboro District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner El Oro Mining Ltd And Quintana Minerals Corp.
    First year 1975
  • Type Owner
    Owner Pague, William R.
    First year 1975

Workings at the site

  • Type of workings Surface/Underground
    Area 1295.04HA

Reference information

Bibliographic references

  • Deposit

    NORTHROP, S.A., 1959, MINERALS OF NEW MEXICO, REVISED EDITION: ALBUQUERQUE, UNIVERSITY OF NEW MEXICO PRESS, P. 300.

  • Deposit

    JONES, F.A., 1904, NEW MEXICO MINES AND MINERALS (WORLD'S FAIR ED.): SANTA FE, NEW MEXICO PRINTING CO., P. 349.

  • Deposit

    JOHNSON, M.G., 1972, PLACER GOLD DEPOSITS OF NEW MEXICO: U.S. GEOLOGICAL SURVEY BULLETIN 1348, P. 25-26.

  • Deposit

    HARLEY, G.T., 1934, THE GEOLOGY AND ORE DEPOSITS OF SIERRA COUNTY, NEW MEXICO: NEW MEXICO BUREAU OF MINES AND MINERAL RESOURCES BULLETIN 10, P. 166-169.

  • Deposit

    LINDGREN, WALDEMAR, GRATON, L.C., AND GORDON, C.H., 1910, THE ORE DEPOSITS OF NEW MEXICO: U.S. GEOLOGICAL SURVEY PROFESSIONAL PAPER 68, P. 272-276.

  • Production

    HARLEY, 1934, P. 141

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-75 Blair, Will N. U.S. Geological Survey
Updater 01-FEB-81 Menzie, David New Mexico Bureau of Mines and Mineral Resources
Updater 01-NOV-90 Peterson, Jocelyn A. 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