1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Medley Mine

Past Producer in Jeff Davis county in Texas, United States with commodity Kaolin
Map
XML
JSON
KML
B
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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10100559
MRDS ID W701387
Record type Site
Current site name Medley Mine
Alternate or previous names Medley's Prospect, White Mountain Prospect

Geographic coordinates

Geographic coordinates: -104.16327, 30.55769 (WGS84)
Relative position 16 MI (26 KM) W OF FORT DAVIS

Site location context

Political divisions (FIPS codes)

Jeff Davis(county)

Texas(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Paradise Mountain(quadrangle 1:24,000 scale)

Mount Livermore(quadrangle 1:100,000 scale)

Marfa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Alamito(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 Jeff Davis

Commodities

Commodity Importance
Kaolin Primary

Materials information

Materials Type of material
Kaolinite Ore
Alunite Gangue
Quartz Gangue

Alteration

  • (Local) Kaolinitization, Silicification, Alunitization. Alteration Zones Dip 30sw. A Kaolinite-Alunite Zone Overlies An Opalized Zone Which Overlies A Kaolinite Zone.

Analytical data

Result CLAY: 51.60% SIO2, 36.75% AL2O3, 0.75% FE2O3, 10.90% H20. CLAY IS FINE GRAINED, HOMOGENOUS, AND SLIGHTLY PLASTIC
Result LINEAR DRYING SHRINKAGE IS 5% OF PLASTIC LENGTH
Result SOFTENING POINT IS ORTON PYROMETRIC CONE NO. 34 AT ABOUT 1760 DEG CENTIGRADE
Result CLAY BURNS TO A CLEAR WHITE COLOR AT CONES NO. 12, 14, AND 19, SHOWING A BURNING SHRINKAGE OF RESPECTIVELY 10.1%, 12.8%, AND 16.2%.

Mineral occurrence model information

Model code 164
USGS model code 25l.2
Deposit model name Hydrothermal kaolin

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Ash-Flow Tuff
    Rock unit name Wild Cherry Formation
    Rock description Wild Cherry Formation
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Pyroclastic Rock > Tuff > Ash-Flow Tuff
    Rock unit name Wild Cherry
    Rock description Wild Cherry

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Significant No

Mining district

District name Davis Mountains

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Oscar Medley

Comments on the production information

  • SMALL TEST SHIPMENTS MADE TO D'HANIS HOLLOW TILE AND BRICK PLANT, MEDINA CO. TX, AND TO THE MICOLITHIC PLANT IN HOUSTON.

Comments on the workings information

  • SHALLOW PITS

Comments on development

  • PROSPECT. DATES OF ACTIVITY: PRE-1917 INTERMITTENTLY THROUGH 1970'S.

Reference information

Bibliographic references

  • Deposit

    PRICE, J. G., HENRY, C. D., AND STANDEN, A. R., 1983, ANNOTATED BIBLIOGRAPHY OF MINERAL DEPOSITS IN TRANS-PECOS TEXAS: BUREAU OF ECONOMIC GEOLOGY (TEXAS), MINERAL RESOURCE CIRCULAR NO. 73, 108 P.

  • Deposit

    UNIV TEX PUB 3401, V. 2, P. 287-288.

  • Other Database

    CIMRI

  • Production

    UTEX PUB 3401, V. 2, P. 287.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1991 Paidakovich, Matthew E. U.S. Geological Survey
Updater 01-AUG-1992 Long, Keith R. 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