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

Margaret D Mine

Past Producer in Brewster county in Texas, United States with commodity Mercury
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. Host and associated rocks
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Mining district
  11. Land status
  12. Ownership information
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10040134
MRDS ID M054804
Record type Site
Current site name Margaret D Mine
Alternate or previous names Maggie D

Comments on the site identification

  • Do not confuse Margaret D (which is also known as Maggie D) with the Maggie Sink (which is the same as Bobs Mine).

Geographic coordinates

Geographic coordinates: -103.70167, 29.32139 (WGS84)
Elevation 991

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)

Black Hills-Fresno(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

  • IN SEC 40, 41, BLK G-12, AND SEC 58, BLOCK G-12.

Commodities

Commodity Importance
Mercury Primary

Materials information

Materials Type of material
Cinnabar Ore
Barite Gangue
Clay Gangue
Fluorite Gangue

Host and associated rocks

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

Nearby scientific data

(1) -103.70167, 29.32139
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: ALONG LIMESTONE-CLAY CONTACT

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Terlingua

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Texas Chisos Mining Co.

Comments on the production information

  • NO PRODUCTION DATA

Workings at the site

  • Type of workings Surface/Underground
    Name of workings shallow workings

Comments on the workings information

  • MANY TRENCHES (UP TO A FEW 100 FT LONG, 10 FT WIDE, AND 30 FT DEEP), PITS, SHAFTS (30-100 FT DEEP), AND A FEW SMALL UNDERGROUND STOPES.

Comments on development

  • MAINLY WORKED BEFORE 1905.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit VEIN ALONG FRACTURE ENLARGED BY SOLUTIONING OF LIMESTONE.

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-09-01 Peterson, Jocelyn A. U.S. Geological Survey
Updater 1992-08-01 Long, Keith R. U.S. Geological Survey
Editor 2012-11-02 Wilson, Anna B U.S. Geological Survey clarified Margaret D = Maggie D. But Maggie Sink = Bobs. Maggie Sink and Maggie D are not the same thing.

Beyond USGS

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

Maps centered on this site