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Little Thirty-Eight Mine

Past Producer in Brewster county in Texas, United States with commodity Mercury
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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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Mineral rights holdings
  16. Land status
  17. Ownership information
  18. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. General comments
  23. Reporter information

Geologic information

Identification information

Deposit ID 10040386
MRDS ID M055136
MAS/MILS ID 480430024
Record type Site
Current site name Little Thirty-Eight Mine
Alternate or previous names Tarrant, Waldron's 38, Little 38 Mine

Geographic coordinates

Point of reference Approximate
Geographic coordinates: -103.655, 29.31984 (WGS84)
Elevation 975
Location accuracy 500(meters)
Relative position 3 MI W OF TERLINGUA. Location estimated from pl. 1 of PP-312.

Site location context

Political divisions (FIPS codes)

Brewster(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Amarilla Mountain(quadrangle 1:24,000 scale)

Chisos Mountains(quadrangle 1:100,000 scale)

Emory Peak(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Terlingua(hydrologic unit)

Rio Grande-Amistad(hydrologic accounting unit)

Rio Grande-Amistad(hydrologic subregion)

Rio Grande(hydrologic region)

Geographic areas

Country State County
United States Texas Brewster

Comments on the location information

  • SEC 38 AND 39, BLK G-12. THE LITTLE THIRTY-EIGHT MINE LIES IN SECTION 38; PROPERTIES IN SECTION 39 WERE WORKED BY TARRANT MINING CO. IN 1933-34.
  • Two mine symbols shown on topo are unlabeled. A.B. Wilson was unable to determine if either the open pit or shaft symbols are workings on this property. Coordinates appear to be for a ground disturbance on the east side of the Villa Delamina Road (Google Earth imagery, Oct. 2012)

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Metacinnabar Ore
Barite Gangue
Calcite Gangue
Clay Gangue
Fluorite Gangue
Pyrite Gangue

Alteration

  • (Local) Kaolinization Of Del Rio Shale

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Santa Elena ;Santa Elena
    Rock description Santa Elena ;Santa Elena

Nearby scientific data

Approximate (1) -103.655, 29.31984
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Asymmetrical Terlingua Anticline

Ore body information

  • General form IRREGULAR

Controls for ore emplacement

  • Solution Collapse Along Limestone-Shale Contact

Comments on the geologic information

  • CRET. LIMESTONE AND SHALE IS CUT BY N-W TRENDING NORMAL FAULTS.
  • CINNABAR LODE IN NORTHEASTERLY FISSURE IN CRET DEVILS RIVER LIMESTONE

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1933

Mining district

District name Terlingua

Mineral rights holdings

Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Unknown
    Owner Tarrant Mining Co.
    Year 1965
  • Type Owner-Operator
    Owner Terlingua Minng Co. Tarrant Mining Co.
    First year 1901
    Last year 1906

Production statistics

  • Year 1960
    Period To 1960
    Material HG
    Accuracy Estimate
    Description Cp_Grade: ^13 Lb/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Mercury Mercury 5873g/mt

Workings at the site

  • Type of workings Underground
    Length 1066.8M
    Overall depth 76.2M
  • Type of workings Underground
    Name of workings 250 ft. shaft, 2,000 ft of drifts,

Comments on development

  • ECON.COM: TERLINGUA MINING CO. INSTALLED A 50 TPD SCOTT FURNACE AROUND 1901. TARRANT MINING CO. INSTALLED A 10 TPD ROTARY FURNACE ON ITS SECTION 38 PROPERTY IN 1933.

Reference information

Bibliographic references

  • Deposit

    BAILEY, E.H., USGS, PERSONAL FILES

  • Deposit

    CHESTER, J.W., 1965, MERCURY IN TEXAS: USBM IC 8252

  • Deposit

    TX BEG MRC-73, P. 23.

  • Deposit

    Yates and Johnson, 1959, USGS PP-312, 114 p.

  • Deposit

    FIELD WORK BY C.P. ROSS AND OTHERS 193

  • Other Database

    CIMRI

  • Production

    USBM DATA

General comments

Subject category Comment text
Deposit INCLUDES INFORMATION FROM DUPLICATE RECORD M055141 BY JOEL R. BERGQUIST (73 11) WHICH HAS BEEN DELETED.
Deposit MINERALIZATION ALONG ZONES TRENDING N45-60E, N10-30W, N40W

Reporter information

Type Date Name Affiliation Comment
Reporter 1973-11-01 Bergquist, Joel R. U.S. Geological Survey
Updater 1992-10-01 Long, Keith R. U.S. Geological Survey
Editor 2012-10-31 Wilson, Anna B U.S. Geological Survey merged and deleted duplicate record 10227462
Reporter 1983-11-18 Garner U.S. Bureau of Mines MS 0480430024 = 10227462

Beyond USGS

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

External references

Maps centered on this site