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Cerro San Gilberto

Producer in Durango, Mexico with commodities Mercury, Manganese, Copper, Fluorine-Fluorite
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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. Alteration
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Production statistics
  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 10100761
MRDS ID MX09000
Record type Site
Current site name Cerro San Gilberto
Alternate or previous names Cerro Prieto, Mina El Cua

Geographic coordinates

Geographic coordinates: -103.66712, 25.80035 (WGS84)
Elevation 1200

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Durango

Comments on the location information

  • SAN GILBERTO IS THE HIGHEST OF 3 SMALL HILLS LYING IN A NS LINE IN THE GREAT DRY LAKE BASIN. DRIVE 9 1/4 KM W OF BERMEJILLO, TURN S ON DUSTY TRACK FOR 8 KM. IT IS 2-3 KM NE OF THE RUGGED MOUNTAINS.

Commodities

Commodity Importance
Mercury Primary
Manganese Critical Tertiary
Copper Tertiary
Fluorine-Fluorite Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Cinnabar Ore
Malachite Ore

Alteration

  • (Local) Local Silicification Of Limestone

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -103.66712, 25.80035
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Deposit Is On Nw Side Of Anticline. There, The Beds Strike N10w, Dip Ssw. Ns Fractures Dip E.

Controls for ore emplacement

  • Localized Below Shale Bed. No Strong Structural Control, Apparently. A Small N40w Fault Dipping 55 Ne May Influence Location.

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Torreon Or Ojuela District

Production statistics

  • Year 1943
    Period Thru 1943
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^0.9 - 31 Kg/T Hg
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 31900g/mt

Comments on the production information

  • REMAINING ORE IS LOW GRADE AFTER CAREFUL HAND SORTING. PROBABLY NO BETTER THAN 2 KG/T HG.

Workings at the site

  • Type of workings Unknown
    Overall depth 20M

Comments on the workings information

  • MINA EL CUA IS A SMALL GAMBUSINO WORKING, PROBABLY LESS THAN 20 M DEEP, WANDERING IRREGULARLY DOWN DIP OF LIMESTONE BEDS. ORE IS ON FOOTWALL SIDE OF 6 FT SHALE BED.

Reference information

Bibliographic references

  • Deposit

    GALLAGHER, D., 1943, MEMORANDUM TO MR. HEWITT: THE MERCURY DEPOSIT AT CERRO SAN GILBERTO, DURANGO

  • Production

    GALLAGHER, 1943

General comments

Subject category Comment text
Deposit ORIGINALLY IT WAS EXPLORED FOR SILVER, GOLD, AND COPPER, UNSUCCESSFULLY. IT LIES 10 KM E OF OLD OJUELA PB-AG MINE. DEPOSIT THOUGHT TO BE WORTHLESS. ; INFO.SRC : 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1979 Slagle, Letha P. (Rytuba, J.) U.S. Geological Survey

Beyond USGS

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

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