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

San Francisco

Producer in Ancash, Peru with commodities Lead, Silver
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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. Nearby scientific data
  8. Ore body information
  9. Economic information about the deposit and operations
  10. Mining district
  11. Mineral rights holdings
  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 10230935
MRDS ID W031412
MAS/MILS ID 3330030071
Record type Site
Current site name San Francisco
Related records 10080298

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -77.14975, -9.49797 (WGS84)
Elevation 4585
Location accuracy 5000(meters)

Site location context

Political divisions (FIPS codes)

Ancash(province)

Peru(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Peru Ancash

Commodities

Commodity Importance
Lead Tertiary
Silver Tertiary

Materials information

Materials Type of material
Calcite Unknown
Galena Unknown
Pyrite Unknown

Nearby scientific data

Ore Body (1) -77.14975, -9.49797
ListMap

Economic information

Ore body information

  • Strike N20W
    Dip 90N
    Thickness 0.1M
    Length 20M
    Width 50M
    Area 5HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Shape of Orebody #2 LENTICULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control FAULTING
    Secondary Ore Control IGNEOUS
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 PYRITIZATION
    Type of Wallrock Alter. #2 SERICITIC
    Type of Wallrock Alter. #3 INTERM ARGILLIC
    Strike And Dip N20W:90N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 5
    Date of Last Modification 780213

Economic information about the deposit and operations

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

Mining district

District name Antamina Mining District

Mineral rights holdings

Type of mineral rights State Lease
Type of mineral rights Minerals Only

Workings at the site

  • Type of workings Underground
    Length 100M
    Overall depth 0M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OVERHAND 10-38
    Percent Waste Rock 90
    Hardness of Rock HARDROCK FISSURED WITH MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. SUPPORTING MAY BACK SLAB
    Mine Support Chars. POST, HEADBOARD, CAPS, ROOF BOLTS
    Length of Inclines (m) 0
    Slope of Inclines 0
    Avg. Length of Adits (m) 20
    Number of Adits 3
    1st Condition of Workings OPEN
    Capacity 2
    Capacity Units MT ORE/DAY
    Unit Production Cost 10
    Units of Production $/MT ORE
    Operating Days per Year 200
    Operating Shifts per Day 1
    Year of Information 1975

Reference information

Bibliographic references

  • Deposit

    BODENLOS, A., ERICKSEN, G., 1955, LEAD-ZINC DEPOSITS OF CORD

  • Deposit

    BLANCA AND N. CORD. HUAYHUASH, PERU: USGS BULL. 1017, 166 PG

General comments

Subject category Comment text
Deposit NO EXPLORATION IN ADVANCE OF MINING, NO RESERVES.

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Ljb U.S. Bureau of Mines

Beyond USGS

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

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