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

Fazendinha

Prospect in Amazonas, Brazil with commodity Potassium
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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. Ownership information
  12. Reserves and resources
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10182678
MAS/MILS ID 3510070006
Record type Site
Current site name Fazendinha

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -59.28263, -3.9649 (WGS84)
Location accuracy 1000(meters)

Site location context

Political divisions (FIPS codes)

Amazonas(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Amazonas

Commodities

Commodity Importance
Potassium Primary

Materials information

Materials Type of material
Anhydrite Unknown
Halite Unknown
Sylvanite Unknown

Nearby scientific data

Ore Body (1) -59.28263, -3.9649
ListMap

Economic information

Ore body information

  • Thickness 2.8M
    Depth to top 1250M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin EVAPORATION
    Primary Ore Control BEDDING
    Degree of Wallrock Alter. NONE
    Minimum Depth to Top 1000
    Date of Last Modification 850108
  • Area 13500HA
    Field Value
    Total Surface Area (HA) 13500
    Date of Last Modification 910418

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Non-metallic
Significant No
Discovery year 1979
Mining method Open Stope - Room and Pillar
Milling method Flotation

Mining district

District name Amazonas State

Ownership information

  • Type Owner-Operator
    Owner Petromisa (Subsid. Of Petrobras Mineracao S. A.)
    Interest 100
    Home office Brazil
    Year 1982

Comments on the ownership information

  • PETROMISA IS A STATE-OWNED SUBSIDIARY OF PETROLEO BRASILEIRO S.A.

Comments on the production information

  • ALL OF THE PRODUCT WILL BE CONSUMED IN THE DOMESTIC MARKET, THEREFORE SALES ARE ASSUMED TO BE F.O.B. MINE.

Reserves and resources

  • Type In-situ
    Estimate year 1983
    Indicated 560000000mt ore
    Demonstrated 560000000mt ore
    Total resources 560000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Potassium K2o 17.7 wt-pct Potassium Major 1983

Comments on the reserve resource information

  • ESTIMATED INSITU ORE RESOURCES USED IN THE 1984 ECONOMIC EVALUATION OF THIS PROPERTY. DATA WAS PROVIDED BY THE CONTRACTOR FROM PUBLISHED SOURCES. SEE THE "R" BIBL. SET.

Workings at the site

  • Type of workings Underground
    Overall depth 1000M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method ROOM AND PILLAR 10-34
    Percent Recovery 31
    Hardness of Rock UNKNOWN
    Rock Characteristics UNKNOWN
    Rock Support Chars. UNKNOWN
    Mine Support Chars. UNKNOWN
    Number of Shafts 1
    1st Condition of Workings UNKNOWN
    Capacity 6667
    Capacity Units MT ORE/DAY
    Operating Days per Year 300
    Operating Shifts per Day 3
    Year of Information 1982

Comments on other economic factors

  • DEVELOPMENT OF THE FAZENDINHA DEPOSIT IS BEING COORDINATED BY PETROMISA WITH THE CONSTRUCTION OF THE TAQUARI-VASSOURAS POTASH FACILITY IN SERGIPE STATE. IT IS EXPECTED THAT ULTIMATELY PROCESSES AND METHODS WILL CLOSELY RESEMBLE THOSE PLANNED FOR SERGIPE.

Reference information

Bibliographic references

  • Reserve-Resource

    MINING JOURNAL (LONDON), APRIL 15, 1983, P. 248-249.

  • Deposit

    PETROMINAS ANNUAL BULLETIN, AUGUST 1981.

  • Deposit

    A CONSTRUCAO, NO.116, JANUARY 1983.

  • Deposit

    CONSTRUCAO PESADA, NO.148, JUNE 1983.

  • Deposit

    BENAVIDES, VICTOR,"SALINE DEPOSITS OF SOUTH AMERICA",

  • Deposit

    INTERNATIONAL PETROLEUM COMPANY, LTD., LIMA, PERU.

  • Deposit

    WARDLAW, N.C.,"UNUSUAL MARINE EVAPORITES WITH SALTS OF

  • Deposit

    CALCIUM AND MAGNESIUM CHLORIDE IN CRETACEOUS BASINS OF SER-

  • Deposit

    GIPE, BRAZIL", ECONOMIC GEOLOGY, VOL. 67, 1972.

  • Deposit

    SZATMARI, CARVALNO AND SIMOES,"A COMPARISION OF EVAPORITE

  • Deposit

    FACIES IN THE LATE PALEOZOIC AMAZON AND THE MIDDLE CRETAC-

  • Deposit

    EOUS SOUTH ATLANTIC BASINS", ECONOMIC GEOLOGY, VOL. 74, 1979

  • Deposit

    GREEN MARKETS, NOV.1,1982.

  • Deposit

    PETROMISA TELEX, 16 DEC. 1983.

Reporter information

Type Date Name Affiliation Comment
Reporter 03-JAN-1995 Michael, Mark R. 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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