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Last Chance Deposit

Past Producer in Grant county in New Mexico, United States with commodity Fluorine-Fluorite
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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. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  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. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10013581
MRDS ID D009962
Record type Site
Current site name Last Chance Deposit
Related records 10126464

Geographic coordinates

Geographic coordinates: -108.49756, 33.07649 (WGS84)
Elevation 1494
Location accuracy 250(meters)
Relative position 10 MI N35E OF CLIFF, NM., To Within 750 Ft, To Within 750 Ft, To Within 750 Ft

Site location context

Political divisions (FIPS codes)

Grant(county)

New Mexico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Canyon Hill(quadrangle 1:24,000 scale)

Mogollon Mountains(quadrangle 1:100,000 scale)

Clifton(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gila(hydrologic unit)

Upper Gila(hydrologic accounting unit)

Upper Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Gila 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 New Mexico Grant

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 014S 016W 21 NE New Mexico

Comments on the location information

  • THE DEPOSIT IS ACROSS THE GILA RIVER FROM THE WATSON MOUNTAIN DEPOSIT. ; INFO FROM LAND.ST :(1978)

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Fluorite Ore
Quartz Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

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

Nearby scientific data

(1) -108.49756, 33.07649
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description 150 Ft Wide Fault/Breccia Zone Trending N25w

Ore body information

  • General form IRREGULAR, TABULAR
    Strike FAULT ZONE, N25W
    Dip FAULT ZONE, 75 SW

Controls for ore emplacement

  • Breccia Zones And Oblique Tensional Faults Within A Fault Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No
Discovery year 1942
Discoverer Clarence And Lola Simpson, And Floyd And Opal Evans
Year of first production 1943
Year of last production 1943

Mining district

District name Gila Mining District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Brown-Johnson Corp.
    First year 1943
  • Type Owner
    Owner Clarene And Lola Simpson, And Floyd And Opal Evans
    First year 1942

Comments on the production information

  • SAMPLE OF FIRST 11 TON ORE SHIPMENT CONTAINED 46.7% CAFZ; SAMPLE OF SECOND 11 TON ORE SHIPMENT CONTAINED 37.6% CAFZ, THESE ORE SHIPMENTS WERE HAND-SORTED.

Workings at the site

  • Type of workings Surface/Underground
    Length 91.44M

Comments on the workings information

  • THE WORKINGS CONSIST OF A 300 FT ADIT AND SEVERAL SMALL CROSSCUTTING TRENCHES.

Comments on development

  • IN 1943 THE USBM TRENCHED AND SAMPLED THE DEPOSIT

Reference information

Bibliographic references

  • Deposit

    WILLIAMS, FE, 1966, USBM INF CIRC 8307, P. 46.

  • Deposit

    ROTHROCK, HE, ET AL, 1946, NMBMMR BULL 21, P. 88-89.

  • Production

    ROTHROCK, HE, 1946, P. 89

General comments

Subject category Comment text
Deposit FLUORSPAR OCCURS AS CEMENTING MATERIAL IN BRECCIA ZONES, AND AS VEINS AND VEINLETS ALONG NE TRENDING TENSIONAL OBLIQUE FRACTURES WITHIN A NW TRENDING FAULT/BRECCIA ZONE 150 FT WIDE. VEINS RANGE FROM LESS THAN AN INCH TO OVER 8 IN WIDE. WHERE EXPOSED IN OPEN SPACES ALONG THE FISSURES, FLUORITE IS PALE GREEN AND COARSELY CRYSTALLINE, SHOWING EXCELLENT CUBES AND OCTAHEDRONS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-83 Haug, Jerry L. (Worl, Ronald G.) 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