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Gravel Pit

Producer in Tamaulipas, Mexico with commodity Sand and Gravel, Construction
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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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10050540
MRDS ID MX25148
Record type Site
Current site name Gravel Pit

Geographic coordinates

Geographic coordinates: -98.54004, 26.12175 (WGS84)
Location accuracy 100(meters)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Los Ebanos(quadrangle 1:63,360 scale)

McAllen(quadrangle 1:100,000 scale)

McAllen(quadrangle 1:250,000 scale)

Geographic areas

Country State
Mexico Tamaulipas

Comments on the location information

  • AT MIGUEL HIDALGO

Commodities

Commodity Importance
Sand and Gravel, Construction Primary

Comments on the commodity information

  • CINNABAR IN A MATRIX OF CALCITE AND GYPSUM

Materials information

Materials Type of material
Gravel Ore

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Gravel
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -98.54004, 26.12175
ListMap

Economic information

Comments on the geologic information

  • POST COMPRESSIVE FAULTING, PRE-NORMAL FAULTING

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No

Comments on the production information

  • INTERMITTENT PRODUCER
  • THE LARGEST MEXICAN HG PRODUCER IN WWII. SECOND LARGEST WWII PRODUCER IN ALLIED WORLD, AFTER PINCHI LAKE, CANADA.

Comments on the reserve resource information

  • IT IS PROBABLE THAT LARGE AMOUNTS OF ORE REMAIN.

Comments on the workings information

  • IN 1942, THERE WERE AT LEAST 25 ACTIVE SHAFTS AND 300 PITS. THE SAN ISIDRO MINE WAS DEVELOPED OVER THE DISCOVERY. IT HAD THE LARGEST PRODUCTION AND POTENTIAL. IT WAS IN TWO BRECCIA ZONES, MINERALIZED THROUGHOUT, NEAR THE BOUNDARY FAULT, WHICH IS ITSELF BARREN. EACH BRECCIA ZONE WAS ABOUT 20 M WIDE, AT LEAST 60 M LONG, AND DEEPEST WORKINGS REACHED 40 M IN 1943 WITHOUT DROP IN GRADE. THE TRENDS OF THE ZONES ARE N 70 E AND N 30 W. AT LEAST FOUR PARALLEL ANTICLINES ON UNEXPLORED, PROMISING GROUND REMAINED IN 1943. THE DEEPEST WORKINGS IN THE DISTRICT BY 1959 REACHED 170 M, WITH A DROP IN GRADE AT THE BOTTOM.

Reference information

Bibliographic references

  • Deposit

    DATA FROM 1:50,000 TOPO (1975)

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit THERE ARE 5 TYPES OF DEPOSIT: 1) MIN. ANTICLINE AXES, 2) MIN. N 70 E FRACTURES, 3) N 30 E FRACTURES, 4) INTERSECTIONS, 5) WIDE BRECCIA ZONES. RICHEST DEPOSITS AT INTERSECTION OF ANTICLINES AND FRACTURES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1994 Long, Keith 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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