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Corte De Madera

Occurrence in Baja California, Mexico with commodity Tungsten
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Materials information
  7. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10049030
MRDS ID MX00240
Record type Site
Current site name Corte De Madera
Related records 10230393

Geographic coordinates

Geographic coordinates: -116.06749, 32.13287 (WGS84)
Relative position 250 M S OF CIENPIES.

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Diego(quadrangle 1:250,000 scale)

Geographic areas

Country State
Mexico Baja California

Comments on the location information

  • ESTIMATE TO WITHIN 1 KM

Commodities

Commodity Importance
Tungsten Critical Primary

Materials information

Materials Type of material
Scheelite Ore
Calcite Gangue
Diopside Gangue
Garnet Gangue
Quartz Gangue
Tremolite Gangue

Analytical data

Result OVERALL TENOR PROBABLY LESS THAN 0.2% WO3

Mineral occurrence model information

Model code 42
USGS model code 14a
Deposit model name W skarn

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Marble

Nearby scientific data

(1) -116.06749, 32.13287
ListMap

Economic information

Comments on the geologic information

  • DEPOSIT IS IN A SMALL PENDANT JUST E OF A LARGE BODY OF QUARTZ DIORITE. PENDANT CONSISTS MAINLY OF HORNFELS AND SCHIST, WITH TWO PARALLEL THIN BEDS OF MARBLE, STRIKING NW AND DIPPING 65 NE, ONE 5 M THICK AND THE OTHER 2 M THICK. ELEVEN M TO THE NW IS ANOTHER PENDANT, 16 M LONG AND 5 M WIDE, THAT CONTAINS THE SAME TWO MARBLE BEDS. MOST OF THE MARBLE HAS BEEN IRREGULARLY REPLACED BY TACTITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Los Gavilanes

Reference information

Bibliographic references

  • Deposit

    FRIES, CARL AND SCHMITTER, EDUARDO, 1945, SCHEELITE DEPOSITS IN THE NORTHERN PART OF SIERRA DE JUAREZ NORTHERN TERRITORY LOWER CALIFORNIA, MEXICO: USGS BULL 946-C, P. 73-101

General comments

Subject category Comment text
Deposit SCHEELITE OCCURS IN TACTITE ON THE SW SIDE OF 2 M THICK BED OF MARBLE AND IN TWO ZONES OF TACTITE WITHIN 5 M THICK MARBLE BED. TACTITE GANGUE CONSISTS MAINLY OF GARNET, TREMOLITE, DIOPSIDE, CALCITE, AND QUARTZ, SCHEELITE-BEARING ZONES ARE ONLY A FEW TENTHS OF A METER WIDE.
Deposit A FEW TONS OF ORE, PROBABLY AVERAGING LESS THAN 0.5% TUNGSTATE, SORTED BUT NOT MILLED IN 1943. ; INFO.SRC : 1 PUB

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1987 Staude, John-Mark G. (Page, Norman J.) U.S. Geological Survey
Updater 01-OCT-1987 Leonard, Kenneth R. U.S. Geological Survey

Beyond USGS

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

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