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Pegaso

Producer in Oaxaca, Mexico with commodities Asbestos, Talc-Soapstone, Magnesite, Manganese
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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. Mineral occurrence model information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10106755
MRDS ID I002005
Record type Site
Current site name Pegaso

Geographic coordinates

Geographic coordinates: -96.86693, 17.8507 (WGS84)
Elevation 1750

Site location context

Political divisions (FIPS codes)

Pima(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

Geographic areas

Country State
Mexico Oaxaca

Comments on the location information

  • N OF OAXACA.

Commodities

Commodity Importance
Asbestos Primary
Talc-Soapstone Tertiary
Magnesite Tertiary
Manganese Critical Tertiary

Comments on the commodity information

  • CHRYSOTILE OCCURS AS SLIP FIBER, AND LESS OFTEN, AS CROSS -FIBER VEINLETS.

Materials information

Materials Type of material
Brucite Ore
Chrysotile Ore
Pyrolusite Ore
Aragonite Gangue
Calcite Gangue
Cordierite Gangue
Garnierite Gangue
Magnetite Gangue
Pectolite Gangue
Talc Gangue
Tremolite Gangue

Mineral occurrence model information

Model code 18
USGS model code 8d
Deposit model name Serpentine-hosted asbestos

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite > Diabase
    Stratigraphic age (youngest) Late Permian
    Stratigraphic age (youngest) Late Permian
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name Acatlan Formation
    Rock description Acatlan Formation

Nearby scientific data

(1) -96.86693, 17.8507
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Nw-Trending Fracturing

Ore body information

  • Depth to top 0M

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Deposit size Medium
Significant No

Ownership information

  • Type Operator
    Owner Cia. Minera Pegaso, S. A.

Reference information

Bibliographic references

  • Deposit

    RAMIREZL., J.C., 1991, GEOLOGY OF THE PEGASO ASBESTOS DEPOSIT, CONCEPCION, PAPALO, SUICATLAN, OAXACA, IN SALAS, G.P., ED., ECONOMIC GEOLOGY, MEXICO: BOULDER, COLORADO, GEOLOGICAL SOCIETY OF AMERICA, THE GEOLOGY OF NORTH AMERICA, V. P-3, P. 343-347

  • Other Database

    CIMRI

General comments

Subject category Comment text
Deposit DEPOSIT CONSISTS OF TWO MINERALIZED ZONES SEPARATED BY COLLUVIUM. THE SOUTHERN ZONE HAS 16 HECTARES OF EXPOSED ORE THAT HAS IRREGULAR CONTACTS WITH SURROUNDING METAMORPHIC ROCKS OF THE ACATLAN FM. THE SERPENTINITE OCCURS AS SEMIROUNDED BLOCKS OF VARYING SIZES. ALTERATION OF THE SOUTH ZONE LARGELY CONSISTS OF ARAGONITE VEINLETS AND DISSEMINATED MAGNETITE AND TALC. SERPENTINITE IN THE NORTH ZONE COVERS 12 HECTARES. METAGRANITE PARTIALLY INTRUDES THE SERPENTINITE HERE AND THE SERPENTINITE FORMS SEMIROUNDED FRAGMENTS OF VARIOUS SIZES. ALTERATION OF THE NORTH ZONE INCLUDES DISSEMINATED MAGNETITE AND PECTOLITE AND MAGNESITE VEINLETS.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-NOV-1992 Orris, Greta 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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