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Ambatovy-Analamay, Madagascar

Occurrence in Madagascar with commodities Nickel, Cobalt, Chromium, Titanium, Metal
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Economic information about the deposit and operations
  11. Mining district
  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 10096538
MRDS ID W029619
Record type Site
Current site name Ambatovy-Analamay, Madagascar

Geographic coordinates

Geographic coordinates: 48.1844, -18.78019 (WGS84)
Relative position 15 KM NE MORAMANGA,ABOUT 60 MEILES FROM TANANARITE

Site location context

Political divisions (FIPS codes)

Madagascar(country)

Africa(continent)

Land(continent)

Geographic areas

Country
Madagascar

Commodities

Commodity Importance
Nickel Critical Primary
Cobalt Critical Secondary
Chromium Critical Secondary
Titanium, Metal Critical Secondary

Alteration

  • (Local) Serpentinisation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock
    Rock unit name Peridotite, Dunite, Foresterite, Chrysolite
    Rock description Peridotite, Dunite, Foresterite, Chrysolite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite
  • Host or associated Associated
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Pyroxenite

Nearby scientific data

(1) 48.1844, -18.78019
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Systeme Du Graphite

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1960
Discoverer Rantoanina

Mining district

District name Moramanga (East Central Region)

Ownership information

  • Type Joint Venture Owner
    Owner Ugine-Kuhlman
    Interest 41
  • Type Joint Venture Owner
    Owner Penarroya
    Interest 21.5
  • Type Joint Venture Owner
    Owner Cofimer
    Interest 12.5
  • Type Joint Venture Owner
    Owner Government Of Madag.
    Interest 10
  • Type Joint Venture Owner
    Owner Omnium Des Mines
    Interest 7.5
  • Type Joint Venture Owner
    Owner Anglo-American Corp.
    Interest 7.5
  • Type Operator
    Owner Soc. Le Nickel De Madagascar (Sonimad)

Reserves and resources

  • Type In-situ
    Estimate year 1966
    Total resources 25000000mt ore
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 1.5 wt-pct Nickel Major 1966

Comments on the reserve resource information

  • H1, H2) AMBATOVY, CERTAIN RESERVES; H3, H4) ANALAMAY, CERTAIN RESERVES, H5) AMBATOVY + ANALAMAY, CERTAIN + POSSIBLE RESERVES.

Workings at the site

  • Type of workings Surface
    Area 800HA

Comments on the workings information

  • AMBATOVY COVERS AN AREA OF 4.5 KM2 ANALAMAY 3.5 KM2

Reference information

Bibliographic references

  • Deposit

    BESAIRE, HENRI: GITES MINERAUX DE MADAGASCAR (1966)

  • Deposit

    MURDOCK, TH.G.: MINERAL RECOURCES OF THE MALAGASY REPUBLIC (1963)

General comments

Subject category Comment text
Deposit THE NICKELIFEROUS LATERITES ARE FOUND BENEATH UPPER FERRUGINOUS CRUST OF THE SHEALDS, OVERLYING THE SERPENTIMIZED PERIDOTITE
Deposit ELIPTIC INTUSION 12 KM X 6 KM; THE NOT ALTERATED PERIDOTITE CONTAINS 0.3 TOCONTAINS 0.7 UP TO TO 1.2 % NI.THE ALTERATED ZONE OF PERIDOTITE HAS A THICKNESS OF ONLY 2 METER. THE FERRUGIUS SHIELDES THEMSELVES HAVE A LOW NICKEL CONTENT; AMBATOVY AVERAGE 0.17 % NI, ANALAMY AVERAGE 0.20 % NI.THE HIGHER VALUES ARE FOUND IN THE LATERITIC LAYER IMMEDIATELY OVERLYING THE BASAL PERIDOTITES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1977 Saam, Henning G. U.S. Geological Survey

Beyond USGS

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

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