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

La Fortuna Prospect

Occurrence in Guanajuato, Mexico with commodity Mercury
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. Alteration
  7. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  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 10095850
MRDS ID MX10001
Record type Site
Current site name La Fortuna Prospect
Alternate or previous names Trancas

Geographic coordinates

Geographic coordinates: -101.16704, 21.33387 (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 Guanajuato

Comments on the location information

  • MIDWAY FROM DOLORES, HIDALDO, TO GUANAJUATO, A POOR DIRT ROAD BREAKS OFF TO N AND RUNS 20 KM TO PROPERTY.

Commodities

Commodity Importance
Mercury Primary

Alteration

  • (Local) Rhyolite Altered To Clay And Opaline Quartz

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -101.16704, 21.33387
ListMap

Economic information

Ore body information

  • Strike N 30 W
    Dip 90
    Width 2M

Controls for ore emplacement

  • Fault Or Fracture? Shoots Probably At Vein Intersections

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Owner
    Owner Licencio Pastor Yanez, Tepetalpa 120, Guanajuato, Guanajuato
    First year 1942

Comments on the production information

  • PROSPECT STAGE. ABOUT 15-20 TONS OF 3 1/2 - 4 1/2 KG/T ORE HAVE BEEN CALCINED. SEVERAL RICH SHOOTS OF 5-10% HG HAD NOT BEEN MINED OUT IN 1942. AVERAGE GRADE WAS LOW.

Workings at the site

  • Type of workings Unknown
    Overall depth 12M

Comments on the workings information

  • A FEW CAVED IN WORKINGS EXIST AND GAMBUSINOS HAVE DONE HAND MINING: THERE ARE A SERIES OF CUTS 10-12 M DEEP.

Reference information

Bibliographic references

  • Deposit

    STORM, L., 1942, RECON. REPORT ON THE LA FORTUNA HG PROSPECT, USGS (J. RYTUBA'S FILE)

  • Production

    STORM, 1942.

General comments

Subject category Comment text
Deposit GOOD FOR SMALL INVESTOR. PRODUCTION MIGHT AVERAGE 5-10 T/DAY OF 5 KG/T. ; INFO.SRC : 2 UNPUB REPT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1979 Slagle, Letha P. (Rytuba, 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