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  3. Mineral Resource Data System (MRDS)

Aztec Mine Group

Producer in Santa Cruz county in Arizona, United States with commodities Copper, Silver, Gold
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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. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10048354
MRDS ID M899945
Record type Site
Current site name Aztec Mine Group
Alternate or previous names Andes Group
Related records 10161874

Geographic coordinates

Geographic coordinates: -110.74985, 31.51014 (WGS84)
Elevation 1478
Relative position 2 MILES SOUTH OF PATAGONIA

Site location context

Political divisions (FIPS codes)

Santa Cruz(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Hughes(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Santa Cruz(hydrologic unit)

Santa Cruz(hydrologic accounting unit)

Middle Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

Coronado 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 Arizona Santa Cruz

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 022S 016E 19 N OF CENTER Arizona

Comments on the location information

  • LOCATED ON NW SLOPE OF RED MOUNTAIN, IN UPPER PART OF AZTEC GULCH, A NE TRIBUTARY OF ALUM CANYON ; INFO FROM LAND.ST :(1979)

Commodities

Commodity Importance
Copper Primary
Silver Tertiary
Gold Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Malachite Ore
Pyrite Ore
Feldspar Gangue
Limonite Gangue
Muscovite Gangue
Quartz Gangue

Alteration

  • (Local) Highly Altered Rhyolite; Surface Oxidation To Unknown Depths

Analytical data

Result EARLY 1900'S ASSAY VALUES AVERAGED 7% CU, 5 OZ/TON AG

Host and associated rocks

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

Nearby scientific data

(1) -110.74985, 31.51014
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description E-W And N-S Trending Faults
Type of structure Local
Structure description Thick-Bedded Very Fine-Grained Volcanics Associated With Red Mountain

Ore body information

  • General form LENSES
    Strike N-S
    Dip 75 SE
    Length 609.6M
    Width 15.24M
  • General form LENSES
    Dip 75 SE

Controls for ore emplacement

  • Strongly Sericitized Fracture Zones In Cret-Tert. Volcanics; Enriched In Places By System Of Cross Fractures

Comments on the geologic information

  • RHYOLITE IS VAGUELY BANDED AND BEDDED IN SOME PLACES; SOME OF THE ORE IS BANDED OR CONSISTS OF SHOOTS OF RELATIVELY PURE SECONDARY CHALCOCITE AND CHALCOPYRITE ONE INCH IN MAXIMUM WIDTH

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1925
Discoverer R.R. Richardson And Associates
Year of first production 1916

Mining district

District name Harshaw District

Land status

Ownership category National Forest

Comments on the production information

  • A FEW TENS OF TONS OF 7% CU ORE PRODUCED IN THE EARLY 1900'S

Workings at the site

  • Type of workings Surface/Underground
    Length 676.66M
    Overall depth 182.88M

Comments on the workings information

  • DEVELOPMENTS INCLUDED A 30 FT OPEN CUT; 90 FT INCLINED SHAFT; 1500 FT TUNNEL; 600 FT OF DRIFTS, CROSSCUTS, AND RAISES; ANDES MINE OF AZTEC MINE GROUP LOCATED ON ANDES VEIN

Comments on development

  • PROPERTY COMPRISES 34 CLAIMS; OPERATERS AND OWNERS INCLUDED R.R. RICHARDSON (EARLY 1900'S), SANDERS AND HARRISON, ED BOLLINGER

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit ORE MINERALS ARE PARTICULARLY CONCENTRATED AS SECONDARY REPLACEMENT DEPOSITS IN A 12-FT LODE OR ORE BED; ORE ALSO DISSEMINATED THROUGH COUNTRY ROCK
Deposit Discovery Year: EARLY 1900'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1982 Calder, Susan R. Arizona Bureau of Geology and Mineral Technology

Beyond USGS

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

External references

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.