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

La Escondida

Occurrence in Sonora, Mexico with commodity Antimony
Map
XML
JSON
KML
C
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Mineral occurrence model information
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10049188
MRDS ID MX00440
Record type Site
Current site name La Escondida
Related records 10263667

Geographic coordinates

Geographic coordinates: -112.59211, 30.71154 (WGS84)

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Sonora

Comments on the location information

  • ESTIMATE TO WITHIN 0.5 KM.

Commodities

Commodity Importance
Antimony Critical Primary

Mineral occurrence model information

Model code 180
USGS model code 27d
Deposit model name Simple Sb (veins, pods, etc)

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Monos Formation
    Rock description Monos Formation
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -112.59211, 30.71154
ListMap

Economic information

Ore body information

  • Strike N 30-50 E
    Dip 49-62 NW
    Thickness 0.02M
    Length 70M

Comments on the geologic information

  • BEDDING OF SANDSTONE UNIT DIPS AT LOW TO MODERATE ANGLES.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name El Antimonio

Workings at the site

  • Type of workings Underground
    Overall depth 7M

Comments on the workings information

  • WORKINGS 7 M DEEP; ALL BUT THE UPPER 2-3 M FILLED WITH WASTE.

Comments on development

  • IN JUNE 1943, A VERTICAL SHAFT WAS BEING SUNK 10 M N OF THE OUTCROP.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit LA ESCONDIDA VEIN WAS ONCE COVERED BY 20-25 M OF OLD HIGH GRAVELS CHARACTERISTIC OF THE SOUTHERN PART OF EL ANTIMONIO DISTRICT. A NUMBER OF OTHER VEINS MAY LIE UNDISCOVERED BENEATH THE ALLUVIAL COVER. ; INFO.SRC : 1 PUB
Deposit VEIN 70 M LONG, AVERAGING 20 CM IN WIDTH, IN BROWN SANDSTONE. VEIN SPLITS NEAR ITS SOUTH END INTO TWO BRANCHES, EACH CONTAINING ANTIMONY IN COARSE-GRAINED QUARTZ GANGUE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1987 Leonard, Kenneth R. (Page, Norman J.) 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