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Pickwick Prospect

Past Producer in Pima county in Arizona, United States with commodities Copper, Silver
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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. Production statistics
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10039492
MRDS ID M050162
Record type Site
Current site name Pickwick Prospect
Alternate or previous names Sweet Group
Related records 10162018

Geographic coordinates

Geographic coordinates: -110.75957, 31.83096 (WGS84)
Elevation 1597
Relative position 28 MILES S.E. 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 36 Arizona

Comments on the location information

  • NE 1/4 SECTION 36.

Commodities

Commodity Importance
Copper Primary
Silver Secondary

Materials information

Materials Type of material
Chalcocite Ore
Cuprite Ore
Malachite Ore

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Quartz Latite
    Rock unit name Quartz Latite 56+-2my-Quartz Latite
    Rock description Quartz Latite 56+-2my-Quartz Latite
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Paleocene
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Willow Canyon Formation Cretaceous-Conglomerate And Siltstone
    Rock description Willow Canyon Form. Cretaceous-Conglomerate And Siltstone

Nearby scientific data

(1) -110.75957, 31.83096
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 80 NW
    Width 1.22M

Controls for ore emplacement

  • Along Fault Contacts An In Fault Zones.

Comments on the geologic information

  • ORE GEN. IN LIME-SILICATE ZONES CONTROLLED BY FAULTS AND FRACTURES ; MAJOR.UNITS: BASIN AND RANGE ; GEOL.DESC: AGE OF MINERALIZATION BELIEVED TO BE THAT OF THE QUARTZ LATITE INTRUSIVE OF DREWES - 1971 ; REG.COM: STRUCTURE IN DISTRICT IS THRUST FAULTING AND 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
Discovery year 1915
Year of first production 1915
Year of last production 1929

Mining district

District name Helvetia-Rosemont District

Land status

Ownership category National Forest

Production statistics

  • Year 1919
    Period 1915-1919
    Material ORE CU AG
    Accuracy Estimate
    Description Cp_Grade: ^8% Cu, 6 Oz Ag/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Silver Silver 17g/mt
    Major Ore Copper Copper 8wt-pct

Comments on the production information

  • PRODUCTION IN LATE 1910'S.

Comments on the workings information

  • DISTRICT IS POSSIBLY NEW PORPH. COPPER DEPOSIT PHYSICAL DIMENSIONS NOT AVAILABLESHAFT AND TUNNEL WORKINGS.

Comments on development

  • OPERATORS INCLUDED MINERALS & METALS, SOUTHERN ARIZONA DEVELOPMENT CO., A. ARIZONA E

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

    KEITH,S.B.,1974,INDEX OF MINING PROPERTIES IN PIMA COUNTY,ARIZONA:ARIZONA BUREAU OF MINES BULLETIN 189,P.128.

  • Deposit

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

  • Deposit

    1971 DIREXPL ANACONDA-POSSIBLE NEW PORPH CU.

  • Deposit

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

  • Production

    KEITH,S.B.,1974,P.128

General comments

Subject category Comment text
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-JUL-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.