1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Merrimac Mine

Past Producer in Cochise county in Arizona, United States with commodities Silver, Gold
Map
XML
JSON
KML
B
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. 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 10026966
MRDS ID M001411
Record type Site
Current site name Merrimac Mine
Related records 10137183

Geographic coordinates

Geographic coordinates: -110.10455, 31.70485 (WGS84)
Relative position 2 MI. SW OF TOMBSTONE

Site location context

Political divisions (FIPS codes)

Cochise(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tombstone(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper San Pedro(hydrologic unit)

San Pedro-Willcox(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Geographic areas

Country State County
United States Arizona Cochise

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 20S 22E 09 Arizona

Comments on the location information

  • NEAR S BOUNDARY, CENTER OF SEC 9 ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Silver Primary
Gold Primary

Materials information

Materials Type of material
Gold Ore
Silver Ore

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Chronological age 72

Nearby scientific data

(1) -110.10455, 31.70485
ListMap

Economic information

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Fault Fissures, N25e To N50e, Dip 35 To 70 Nw

Comments on the geologic information

  • ORE ALONG AN OXIDIZED AND ALTERED FAULT FISSURE CUTTING QUARTZ LATITE PORPHYRY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Tombstone District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Tombstone Silver Fields Co.

Comments on the production information

  • SOME PRODUCTION OF THE MERRIMAC MINE IS INCLUDED UNDER FREE COINAGE

Comments on the workings information

  • FOUR SHAFTS; ON TOMBSTONE QUAD

Reference information

Bibliographic references

  • Deposit

    ARIZ. B. OF M. BULL. 143, 1938, P. 100, PL. 3

  • Deposit

    KEITH, S.B., 1973, ARIZONA BUREAU OF MINES BULLETIN 187, P. 77.

  • Deposit

    MARVIN, STERN, CREASEY, AND MEHNERT, 1973, USGS BULL 1379

  • Production

    KEITH, 1973, ARIZ. BUR. OF MINES BULL. 187.

General comments

Subject category Comment text
Deposit ORE ALONG AN OXIDIZED AND LATERED FAULT FISSURE CUTTING QUARTZ LATITE PORPHYRY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Gere, W. Arizona Bureau of Geology and Mineral Technology
Updater 01-NOV-1981 Gest, Don E. 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

Authoritative Arizona resources

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