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Pacific Mine

Past Producer in Grant county in New Mexico, United States with commodities Gold, Silver, Copper, Zinc, Lead
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10013471
MRDS ID D009780
Record type Site
Current site name Pacific Mine
Alternate or previous names Hearst Shaft, Gillett Shaft, Thayer Shaft: Patented Claims, Pacific, South Extension Pacific, Pacific No. 2,
Related records 10247407

Geographic coordinates

Geographic coordinates: -108.24256, 32.85094 (WGS84)
Elevation 2225
Relative position ABOUT 6 MILES N 27 E OF SILVER CITY.

Site location context

Political divisions (FIPS codes)

Grant(county)

New Mexico(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fort Bayard(quadrangle 1:24,000 scale)

Silver City(quadrangle 1:100,000 scale)

Silver City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mimbres(hydrologic unit)

Mimbres(hydrologic accounting unit)

Rio Grande-Mimbres(hydrologic subregion)

Rio Grande(hydrologic region)

Geographic areas

Country State County
United States New Mexico Grant

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 017S 014W 01,12 SE (01); NE (12) New Mexico

Comments on the location information

  • ACCURATE LOCATION IS FOR THE MAIN SHAFT ON THE PACIFIC NO. 2 CLAIM AS SHOWN ON USGS GEOLOGIC MAP GQ-865.

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary
Zinc Critical Secondary
Lead Secondary

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Galena Ore
Gold Ore
Sphalerite Ore
Barite Gangue
Calcite Gangue
Pyrite Gangue
Quartz Gangue
Rhodochrosite Gangue

Alteration

  • (Local) Propylitization, Sericitization

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Monzonite
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -108.24256, 32.85094
ListMap

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike N 10 TO 60 E
    Dip 75 NW
    Thickness 1.83M
    Length 1200M

Controls for ore emplacement

  • Mineralization Localized In Fissures And Fractures Adjacent To A Monzonite Stock.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1860
Year of first production 1865
Year of last production 1955

Mining district

District name Pinos Altos District

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Savannah Copper Co.
    Home office Silver City, N.M.
    First year 1940

Comments on the production information

  • PRODUCED MORE THAN $1,000,000 IN ORE BY 1905. ORE RANGED FROM $22 TO $10 PER TON IN AU AND AG; WITH AS MUCH AS 2.5% CU FOUND ON THE LOWER LEVELS OF THE MINE.

Workings at the site

  • Type of workings Underground
    Overall depth 213.36M

Comments on the workings information

  • WORKINGS REPORTED IN 1910 CONSISTED OF THE HEARST AND GILLETT SHAFTS, A SHORT TUNNEL AND DRIFTS CONNECTING THE TWO SHAFTS. MINE DEVELOPED TO A DEPTH OF 180 M WITH EXTENSIVE WORKINGS ON 9 LEVELS. THE TWO SHAFTS HAVE EXTENSIVE STOPING.

Comments on development

  • FIRST DEPOSIT MINED IN THE AREA.

Reference information

Bibliographic references

  • Deposit

    LINDGREN, W., GRATON, L. C., AND GORDON, C. H., 1910 USGS PP 68, P. 297-299

  • Deposit

    PAIGE, S., 1911 USGS BULL 470, P. 109-118

  • Deposit

    BUSH, F. V., 1915 MINING AND ENGINEERING WORLD, VOL 42, NO 4, P. 165-168

  • Deposit

    ANDERSON, E. C., 1957 NMBMMR BULL 39, P. 70-71

  • Deposit

    JONES, W. R., MOORE, S. L., AND PRATT, W. P., 1970 USGS GEOLOGIC MAP, GQ-865

  • Deposit

    NMBMMR GENERAL FILE DATA

General comments

Subject category Comment text
Deposit THREE PATENTED CLAIMS MINERAL SURVEY NUMBERS 63, 64 AND 1566 COVERING 19.815 ACRES. VEIN (N25-46E, STEEP NW) IN DIORITE PORPHYRY TO NORTH AND ANDESITE BRECCIAS TO SOUTH. VEIN ABOUT 1200 M LONG. LINDGREN ET AL REPORTS THAT VEIN STRIKES N60E, DIPS 75NW, AND IS .8 M WIDE.
Deposit THIS RECORD INCLUDES DATA FROM RECORD D011730 BY RON WORL HAS BEEN DELETED FORM MRDS. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-82 Menzie, David New Mexico Bureau of Mines and Mineral Resources
Updater 01-AUG-84 Seanor, Clint E. (Worl, Ron) New Mexico Bureau of Mines and Mineral Resources
Updater 01-FEB-90 Bolm, Karen 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