Codemin Mine

Producer in Goias, Brazil with commodities Nickel, Iron
Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Ownership information
  13. Reserves and resources
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10024501
MRDS ID ISM0223
Record type Site
Current site name Codemin Mine

Geographic coordinates

Geographic coordinates: -48.3824, -14.5477 (WGS84)
Elevation 1000
Relative position ORE BODY; UNKNOWN

Site location context

Political divisions (FIPS codes)

Goias(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Goias

Comments on the location information

  • LOMA PEGUERA IS AT 18-53-13N, AND 70-18-48W, 11 KM SE OF BONAO; LOMA CARIBE IS AT 18-58-08N, 70-23-09W, 4 KM NE OF BONAO
  • SUMMITS OF SERRA DA MANTIQUIERA

Commodities

Commodity Importance
Nickel Critical Primary
Iron Primary

Comments on the commodity information

  • THE NICKEL PRODUCTION IS CLASSIFIED EITHER AS CLASS I OR CLASS II METAL. CLASS I COMPRISES MAINLY PURE ELECTROLYTIC NICKEL IN THE FORM OF PELLETS OR BRIQUETTES, CLASS II COMPRISES FERRONICKEL OR NICKEL OXIDE SINTER.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Rock unit name S. Jose Dos Tocantins Complex;S. Jose Dos Tocantins Complex
    Rock description S. Jose Dos Tocantins Complex;S. Jose Dos Tocantins Complex

Nearby scientific data

(1) -48.3824, -14.5477

Economic information

Geologic structures

Type of structure Regional
Structure description Tropical Weathering

Ore body information

  • Depth to top 0M

Comments on the geologic information

  • ; GRNR; PYTT; PNLD; PYRT; LMON; THE DISCONTINUOUS NICKEL DEPOSITS ARE REMNANTS OF A ONCE MORE-EXTENSIVE NICKEL-BEARING LATERITE MANTLE OVERLYING T-HE TOCANTINS IGNEOUS COMPLEX, WHICH COVERS 750 SQ KM AND COMPR-ISES A VARIETY OF LAYERED BASIC AND ULTRABASIC ROCKS. THE MIN-ERALIZED ZONE AVERAGES 1400 M LENGTH, 450 M WIDTH, AND 15 M TH-ICKNESS.
  • UPLIFT AND BLOCK FAULTING; CENO; GRNR + SRPN; LMON; SPNL; DEPOSIT OCCURS IN IRREGULAR POCKETS AND BLANKETS 2-40 M THICK. SERPENTINITE CONTAINS 0.2 TO 0.3% NI, WHILE THE OR-E CONTAINS 1.53% NI. THE DEPOSIT BELT IS ABOUT 90 KM LONG AND- 2-5 KM WIDE. ULTRAMAFIC ROCKS EMPLACED IN EO; LATERIZATION O-CCURED IN PLEIS. ULTRAMAFIC COMPLEX EMPLACED IN EOCENE; WEST BOUNDARY IS FAULT DIPPING EAST AT 75-80 DEGREES, EAST BOUNDARY IS FAULT DIPPING WEST AT 50-65 DEGREES.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1908
Year of first production 1982

Mining district

District name Niquelandia District

Ownership information

  • Type Owner-Operator
    Owner Empresa De Desenvolvimento De Recursos Minerais S.A. (Codemin)

Comments on the production information

  • LESS THAN 60%OPERATIONS SHUT DOWN IN JAN 82 AND RE-OPENED AT LESS THAN HALF CAPACITY LATER THAT YEAR. PRODUCTION CAPACITY IS 3-0,000 MT/YR. CURRENTLY (JAN 83) OPERATING ONLY ONE OF TWO PRODUCTION LINES. CALCULATED RECOVERY RATE IS ABOUT 75%. ORE PRODUCTION CAPACITY BETWEEN 1 AND 3 MILLION TONNES/YEAR. FERRONICKEL CONTENT 30-40% NI, ABOUT 60% FE, MAX. 1% CO, MAX. 0.5% SI, 0.1% C, 0.1% S, 0.02% P. MINING BLOCK F-24 ON LOMA FRASER FIRST TO PRODUCT AND PRODUCED 2.8 MILLION DRY ST ORE AT 1.64% NI.
  • UNKNOWN UNKNOWNMINE IS DESIGNED TO PRODUCE 5000 TO 5900 MT OF NICKEL PER YEAR CONTAINED IN FERRONICKEL.

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 1000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.4 wt-pct Nickel Major 1982
  • Type In-situ
    Estimate year 1983
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.45 wt-pct Nickel Major 1983

Comments on the reserve resource information

  • UPPER STRIPPING CUT-OFF LIMIT IS 1.05%, BOTTOM CUT-OFF IS 1.2%. ORE (1) PROVEN RESERVES
  • RESERVES ARE SUFFICIENT FOR A 20-YEAR LIFE AT THE PLANNED LEVEL OF PRODUCTION.

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). DEVELOPMENT(YES); EXPLORATION(YES); OVERALL NICKEL RECOVERY WILL BE ABOUT 85%.
  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ( X; NICKEL PRICE AND DEMAND.). DEVELOPMENT(YES); ASSESSMENT(AT END OF 1981 PROJECT HAD 9 MILLION DOLLAR DEFICIT DUE PRIMARILY TO HIGH COST OF IMPORTED ENERGY.); SIX ORE BODIES BEING MINED. FERRONICKEL WITH 30-40% NI, 60% FE AND 1% CO PRODUCED. PLANT BEGAN OPERATION IN EARLY 1970 AND REACHED FULL PRODUCTION IN 1973.

Reference information

Bibliographic references

  • Deposit

    MINING JOURNAL, 1982, CODEMIN'S NEW NI MINE COMMISSIONED: MINING JOURNAL, V. 299, NO. 7688 (DEC. 24), P. 443. (G-13, PA8, RR1, RR8)

  • Deposit

    MINING ANNUAL REVIEW, 1983, CENTRAL AND SOUTH AMERICA--BRAZIL: LONDON, MINING ANNUAL REVIEW, MINING JOURNAL LTD.,- P. 311-316. (G2B, G3B, RR2)

  • Production

    PA8: RF1

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). SURFACE REFINED. FLACONBRIDGE DOMINICANA MINE AND SMELTER STARTED OPERATIONS MAY 1972 AT DESIGN CAPACITY 29,000 M.T.P.Y. OF NICKEL. DEPOSITS ARE ON A 300 SQUARE MILE AREA NEAR BONAO. ORE RESERVES SHOULD LAST 20+ YEARS. FERRONICKEL PRODUCED 1974 WAS 80,000 TONNES, WITH NICKEL CONTENT OF SOME 30,000 TONNES. RECORDS W002781 BY GLENN L. SHAFFER, UPDATED BY GRETA ORRIS, W029675 BY H.G. SAAM, AND W700673 BY DELILAH J. BEOUGHER (GREGORY T. SPANSKI) HAVE BEEN INCORPORATED INTO THIS RECORD.
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). SURFACE 0 M REFINED
Deposit OVER ALL AREA 49 HA; BELT IS 9 KM LONG AND 2 TO 5 WIDE; LOMA PEGUERA IS AN OVAL AREA 3.4 KM BY 2 KM. THREE TYPES OF ORE: LIMONITE ORE, SOFT SAPROLITE ORE, AND ROCKY ORE. LIMONITE ORE ACCOUNTS FOR 25% OF RESERVES WITH 1.42% NI, 36.4% FE; SAPROLITE ORE FOR 35% WITH 1.70% NI, 14.2% FE; ROCKY ORE FOR 40% WITH 1.74% NI, 8.3% FE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1983 Foose, Michael P. U.S. Geological Survey

Beyond USGS

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