Mina Rocha

Producer in Parana, Brazil with commodities Lead, Silver
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. Ownership information
  13. Reserves and resources
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10305333
MAS/MILS ID 3510290002
Record type Site
Current site name Mina Rocha
Alternate or previous names Rocha 5, Rocha Bassetti, Rocha 1

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -48.99901, -24.9474 (WGS84)
Elevation 900

Site location context

Political divisions (FIPS codes)

Parana(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Parana

Commodities

Commodity Importance
Lead Tertiary
Silver Tertiary

Materials information

Materials Type of material
Calcite Unknown
Chalcopyrite Unknown
Galena Unknown
Pyrite Unknown
Pyrrhotite Unknown
Sphalerite Unknown

Nearby scientific data

Ore Body (1) -48.99901, -24.9474

Economic information

Ore body information

  • Field Value
    Type of Orebody #1 FISSURE VEIN
    Shape of Orebody #1 TABULAR
    Primary mode of Origin HYDROTHERMAL
    Primary Ore Control UNKNOWN
    Degree of Wallrock Alter. UNKNOWN
    Type of Wallrock Alter. #1 UNKNOWN
    Minimum Depth to Top 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Underground
Development status Producer
Commodity type Metallic
Significant No
Year of first production 1961

Mining district

District name Ribeira

Mineral rights holdings

Type of mineral rights Private Lease

Ownership information

  • Type Owner-Operator
    Owner Plumbum,S. A.
    Interest 100
    Home office Brazil
    Year 1975

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Measured 332000mt ore
    Demonstrated 332000mt ore
    Total resources 332000mt ore
    Commodity Subtype Grade units Group Importance Year
    Lead Pb 4.4 wt-pct Lead Trace 1975
    Silver Ag 75.5 g/mt Silver Trace 1975

Workings at the site

  • Type of workings Underground
    Field Value
    MAS Development Schedule # 1
    Mining Record # 2
    Status of Mining Method ESTIMATE
    Mining Method SHRINKAGE METHODS
    Capacity 130
    Capacity Units MT ORE/DAY
    Units of Production $/MT ORE
    Year of Information 1975

Reference information

Bibliographic references

  • Deposit

    LEFOND, S.J., 1973, BRAZILIAN MINING: RELAXED GOV T ATTITUDE

  • Deposit

    THE WAY FOR EXPLOITING CRITICAL RESERVES: MIN. ENG. V.25

  • Deposit

    PG.31-45.

  • Deposit

    ROCHA, A.J.D., 1973, PERFIL ANALITICO DO CHUMBO: DNPM BOLETI

  • Deposit

    RIO DE JANEIRO, 76P.

  • Deposit

    AUGUST 25, 1975: DOURADO ROCHA, A.O., 1973, ANALYTICAL PROFI

  • Deposit

    LEAD [PORT]: D.N.P.M., MIN. MIN. ENER., BOL. NO. B, 74 P.

  • Deposit

    BASIC DOCUMENT, 1970, CONTRIBUTIONS TO THE GEO-ECONOMIC DEVE

  • Deposit

    OF SAO PAOLO AND PARANA [PORT.]: D.N.P.M., MIN. MIN. ENER, P

  • Deposit

    ESP. NO. 10, 111 P. (AUTHORY PINTO COELHO, FRANCISCO DAS CHA

General comments

Subject category Comment text
Deposit 75-RCD 011 MINA ROCHA INCLUDES THE 3 ADDITIONAL NAMES GIVEN 75-RCD 020 OPERATOR UNKNOWN PROBABLY SUBSIDIARY OF PLUMBUM, 75-RCD 060 OTHER REL TO ORE IS "PRESENT IN SECTION, NOT IN C 75-RCD 061 OTHER REL TO ORE IS "WITHIN 7 KM OF ORE" 75-RCD 080 DEP IS NEAR VERTICAL FISSURE VEIN, DETAILS NOT AV 75-RCD 101 RESERVE DATA FROM ROCHA, 1973 75-RCD 140 DEST IS MILL, SMELTER, REFINERY AT PANELAS, 93512 75-RCD 152 2MTPM AG PLUS SOME CU,AU RECOVERED FROM REFINERY AUGUST 25, 1975: THE MINE IS MADE UP OF THE FOLLOWING CONCES ROCHA I, ROCHA V, AND ROCHA BASSETTI. ACCORDING TO BASIC DOCUMENT (SEE BIB.), THE LEAD CONTENT IS BY WEIGHT AND THE RESERVES ARE 130,000 M.T. OF ORE.

Reporter information

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

Beyond USGS

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