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Itanhem

Producer in Bahia, Brazil with commodity Graphite
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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. Geologic structures
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10024367
MRDS ID ISM0077
Record type Site
Current site name Itanhem

Geographic coordinates

Geographic coordinates: -40.3489, -17.09757 (WGS84)

Site location context

Political divisions (FIPS codes)

Bahia(province)

Brazil(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Brazil Bahia

Comments on the location information

  • CENTER OF AN AREA LIMITED BY COORDINATES 48 DEG 54' AND 49 DEG 17'E AND 18 DEG 00' AND 18 DEG 43'S. AMBATOMITAMBA IS SITUATED NEAR THE CENTER OF THE RECTANGLE. WORKING MINES: AMBATOMITAMBA/SMGI (18 DEG 19'S; 49 DEG 03'E); ANTSIRAKAMBO/GALLOIS (18 DEG 28'S; 49 DEG 13'E); SAHANAVO (AMBALORONDRO)/SMGI (18 DE G 27'S; 48 DEG 59'E) = AMBOLOJATSY; SAHAMAMY/ROSTAING (18 DEG 35'S; 48 DEG 59'E). MAJOR OCCURRENCES DEPOSI TS: AMPITABE (18 DEG 25'S; 49 DEG 0 7'E), MANAMBOLO (18 DEG 23'S; 49 DE G 15'E), AMBAKOANA (18 DEG 26'S; 48 DEG 54'E), AMPISAKA (18 DEG 13'S; 4 9 DEG 03'E), ANTSIRABE (18 DEG 18'S ; 49 DEG 07'E), TROMOINA (18 DEG 18 'S; 49 DEG 03'E, PART OF AMBATOMITAMBA), TOLONGOINA (18 DEG 09'S; 48 D EG 56'E)

Commodities

Commodity Importance
Graphite Critical Primary

Comments on the commodity information

  • GRAPHITE, CRYSTALLINE, FLAKES

Materials information

Materials Type of material
Graphite Ore

Nearby scientific data

(1) -40.3489, -17.09757
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Metamorphism

Comments on the geologic information

  • ; QUARTZ, MICAS, GARNET, SILLIMANITE, GRAPHITE; MINOR: PYROXENE AND AMPHIBOLE IN LATERITIZED ORES: IRON HYDROXIDES, AL-HYDROXIDES, SOMETIMES NONTRONITE; METEORIC ALTERATION ABOUT 20 M DEEP. MINERALIZED ZONE SOMETIMES DISPLAYS THICKNESS OVER 30 M; SEAMS OF GRAPPHITE-QUARTZITES, GRAPHITIC GNEISSES AND KHONDALITES GENERALLY STRIKING NNW OR NW. OTHER NAMES BEING USED INSTEAD OF "MANAMPOTSY-GROUP": SYSTEME DU GRAPHITE, AMBATOLAMPY-GROUP, AMPANIHY-GROUP

Economic information about the deposit and operations

Development status Producer
Commodity type Non-metallic
Significant No
Year of last production 1985

Ownership information

  • Type Operator
    Owner Minerios Brasileiros Mineracao E Industria Ltda.

Comments on the production information

  • SMGI OPERATES 3 PITS IN THE AREA, TOTAL CAPACITY 5800 TPY PRODUCT. PRODUCTS: SPECIAL EXTRA BIG FLAKE; BIG FLAKE (GP); MEDIUM FLAKE; FINE FLAKE; POWDER. COMBINED CAPACITY OF GALLOIS-INCLUDING MAROVINTSY IS ABOUT 8000 TPY PLANS TO RAISE CAPACITY FROM 450 TO 600 TPM; DEVELOPMENT OF A NEW (4.) SURFACE OPERATION AND SOME BENEFICIATION FACILITIESPRESUMABLY 85 % C PRODUCTS

Reserves and resources

  • Type In-situ
    Estimate year 1982
    Total resources 1000mt ore
    Commodity Subtype Grade units Group Importance Year
    Graphite Fc 40 wt-pct Graphite Major 1982

Comments on the reserve resource information

  • NO DETAILED FIGURES AVAILABLE EXCEPT BESAIRIES STATEMENTS 1966

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. (). DEVELOPMENT(UNKNOWN); EXPLORATION(UNKNOWN); GENERAL CONSTRAINTS FOR GRAPHITE MINING IN MADAGASCAR AT PRESENT: ROM-ORE SHOULD CONTAIN MORE THAN 5 %FIXED CARBON; DEPOSIT SHOULD LIE ON TOP OF A HILL; DEEP WEATHERING OF ORES BUT ONLY LITTLE OVERBURDEN; AVAILABILITY OF WATER (8-12 CUBIC METERS OF WATER ARE REQUIRED TO TREAT 1 CUBICMETER ROM-ORE); FAVORABLE TRANSPORT CONNECTION TO TAMATAVE-PORT

Reference information

Bibliographic references

  • Deposit

    ANUARIO MINERAL BRASILEIRO, 1981-1983, BRASILIA.

  • Deposit

    SUMARIO MINERAL, 1982, BRASILIA, V. 2, P. 56-57.

  • Deposit

    GUIMARES, M.A., 1973, PERFIL ANALITICO DA GRAFITA, D.N.P.M., BOLETIM NO. 16, RIO DE JANEIRO.

  • Production

    PA1-PA6) ANUARIO MINERAL BRASILEIRO, 1979-1983

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 GRINDING, WASHING, DESLIMING, FLOTATION, HEAT TREATMENT RESOURCE FIGURES FROM BESAIRIE (1966): AMBATOMITAMBA: 45000 TONNES ROM-ORE (7 % C), SMALLER DEPOSITS: 8000 TONNES (7 % C), TROMOINA: BIG POTENTIAL, AMPANGADIANTANY: BIG POTENTIAL, SAHANAVO: BIG POTENTIAL. COORDINATES OF DEPOSITS ORIGINALLY IN X-Y-COUNTRY COORDINATES IN BESAIRIE, TRANSFORMED TO GREENWICH SYSTEM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1985 Krauss, Ulrich H. Bundesanstalt Fuer Geowissenschaften und Rohstoffee (Germany)

Beyond USGS

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

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