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  3. Mineral Resource Data System (MRDS)

La Montosa

Past Producer in Sonora, Mexico with commodity 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. Mineral occurrence model information
  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. Mining district
  13. Ownership information
  14. Production statistics
  15. Reserves and resources
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10098748
MRDS ID MX00527
Record type Site
Current site name La Montosa
Alternate or previous names El Mirador, San Francisco No. 1, San Francisco No. 2, San Jose, San Alejandro
Related records 10183273

Geographic coordinates

Geographic coordinates: -109.82703, 29.59048 (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

  • ESTIMATED TO WITHIN 1 KM.

Commodities

Commodity Importance
Manganese Critical Primary

Mineral occurrence model information

Model code 156
USGS model code 25g
Deposit model name Epithermal Mn

Host and associated rocks

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

Nearby scientific data

(1) -109.82703, 29.59048
ListMap

Economic information

Ore body information

  • Strike N 35-70 W
    Dip 60 NE - 65 SW
    Thickness 1.3M
    Length 390M
    Width 65M
    Depth to bottom 65M

Controls for ore emplacement

  • Fault Controlled.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Moctezuma

Ownership information

  • Type Owner
    Owner Cia. Minera De Sonora, S. De R. L. Y C. V.
    First year 1960

Production statistics

  • Year 1960
    Period -1960
    Material ORE MN
    Accuracy Estimate
    Description Cp_Grade: ^40% Mn
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Ore Manganese Manganese 40wt-pct

Comments on the production information

  • TOTAL PRE-1960 PRODUCTION. PRODUCTION RATE (1960): 10 TPD OF MATERIAL GRADING 40% MN.

Reserves and resources

  • Type In-situ
    Estimate year 1960
    Total resources 57000mt ore
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 28 wt-pct Manganese Major 1960
  • Type In-situ
    Estimate year 1960
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 32 wt-pct Manganese Major 1960
  • Type In-situ
    Estimate year 1960
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 29 wt-pct Manganese Major 1960
  • Type In-situ
    Estimate year 1960
    Commodity Subtype Grade units Group Importance Year
    Manganese Mn 25 wt-pct Manganese Major 1960

Comments on the reserve resource information

  • ITEM 1: POSITIVE ORE. ITEM 2: PROBABLE ORE. ITEM 3: POSSIBLE ORE.

Workings at the site

  • Type of workings Surface/Underground
    Area 282HA
    Overall depth 40M

Comments on the workings information

  • MOST WORKINGS ONLY 2 - 8 METERS DEEP.

Reference information

Bibliographic references

  • Deposit

    AYUB M., A.R., 1960, MINERALES DE MANGANESO EN LOS ESTADOS DE SONORA, DURANGO, ZACATECAS Y SAN LUIS POTOSI: CRNNR BOLETIN 49, P. 35-64, TABLAS I-III

  • Production

    AYUB, 1960.

General comments

Subject category Comment text
Deposit FIVE SUBPARALLEL MN VEINS, TRACEABLE FOR UP TO 4 KM ALONG STRIKE. AVE. WIDTHS: 0.30-1.30 M. LENGTHS: 50-390 M. ESTIMATED TOTAL DEPTHS: 15-65M.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1988 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.

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