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Curtis Claim

Past Producer in Pima county in Arizona, United States with commodities Silver, Copper, 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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10039404
MRDS ID M050035
Record type Site
Current site name Curtis Claim
Related records 10234693

Geographic coordinates

Geographic coordinates: -110.77374, 31.84457 (WGS84)
Elevation 1494
Relative position 28 MILES SE OF TUCSON.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Helvetia(quadrangle 1:24,000 scale)

Fort Huachuca(quadrangle 1:100,000 scale)

Nogales(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rillito(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 Pima

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 18S 15E 26 Arizona

Commodities

Commodity Importance
Silver Primary
Copper Secondary
Lead Secondary

Comments on the commodity information

  • MALACHITE-AZURITE-CUPRITE ARE SECONDARY VEIN=DRUSY BANDED QUARTZ.

Materials information

Materials Type of material
Argentite Ore
Chalcopyrite Ore
Cuprite Ore
Galena Ore

Analytical data

Result ORE AVERAGED 6% PB, 8% CU, 86 OZ AG/TON.

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Granodiorite Porph Precambrian 1450+-10my Granodiorite.;Granodiorite Porph 54+-2my Granodiorite
    Rock description Granodiorite Porph Precambrian 1450+-10my Granodiorite.;Granodiorite Porph 54+-2my Granodiorite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Paleocene
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -110.77374, 31.84457
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Homoclinal ; Reg.Trends: Tilting And Broad Open Folds In S. And Extensive Faulting In N.
Type of structure Local
Structure description Thrust And Normal Faulting - Fracture Zones

Ore body information

  • General form TABULAR
    Dip 15 SE
    Thickness 0.38M

Comments on the geologic information

  • ORE GEN IN LIME -SILICATE ZONES CONTROLLED BY FAULTS AND FRACTURES. ; GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE THAT OF THE GRANODIORITE INTRUSIVE OF DREWES -1971. ; REG.COM: STRUCTURE IN DISTRICT IS THRUST FAULTING - HIGH ANGLE NORMAL FAULTING AND FOLDING.

Economic information about the deposit and operations

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

Mining district

District name Helvetia-Rosemont District

Land status

Ownership category National Forest

Comments on the production information

  • UNKNOWN PRODUCTION.

Workings at the site

  • Type of workings Underground
    Length 64.01M

Comments on the workings information

  • DISTRICT IS POSSIBLY NEW PORPH. COPPER DEPOSIT.

Comments on development

  • ANACONDA REPORTS ROSEMONT-HELVETIA INTRUSIVE QUARTZ LATITE AS POTENTIAL PORPH. COPPER DEPOSIT IN 1971.

Reference information

Bibliographic references

  • Deposit

    SCHRADER, F.C., 1915 USGS BULL. 582

  • Deposit

    ARIZONA BUREAU OF MINES 1971 FIELDNOTES V. 1 NO. 2

  • Deposit

    DREWES, H. 1971 USGS MAP I-613 (SAHUARITA QUAD)

  • Deposit

    1909 RECON F. C. SCHRADER U.S.G.S. BULL. 582

  • Deposit

    1971 DIREXPL ANACONDA-POSSIBLE NEW PORPH. COPPER DEPOSIT.

  • Deposit

    1971 GEOLMAP H. DREWES U.S.G.S. MAP I-613

  • Production

    SCHRADER.

General comments

Subject category Comment text
Deposit VEIN PARALLEL TO SHEETING IN GRANITE SCHRADER-1915.
Deposit THE STRATIGRAPHIC UNITS USED ARE THOSE OF H. DREWES - 1971 USGS MAP I-613. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Keith, William J. 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.