Description
Johnston, W.D, And Vasconcellos, F.M.
Commodities
PrimaryTungsten
SecondaryMolybdenum
Commodity typeM
Deposit
Model42: W skarn
Deposit sizeY
WorkingsUnderground
Orebody formIRREGULAR AND LINEAR
Ore controlTactite Ore Located Pt Contact Of Gneiss Or Schist Within Plunging Syncline, Southern End
Materials
Ore mineralsMolybdenite, Scheelite
GangueBismuth, Calcite, Feldspar, Fluorite, Pyrite, Wollastonite, Zoisite
Geology
Host rockSchist,Gneiss,Skarn (Tactite)
Associated rockGranite
StructureOpen Syncline Plunging South 5 Degrees, North-Trending Fault
Tectonic settingPrecambrian B Shield
Economic & production
Development statusProducer
First production1943
Discovery year1942
Identification
Deposit ID10068859
MRDS IDW002128
Alternate namesMina Brejui, Barra Verde, Boca De Laje
RegionSA
Data scoreB
Coordinates-6.31472, -36.58221
References
WHITE, M.G., 1973, TIN AND TUNGSTEN RESOURCES OF BRAZIL.CESAR, P. DE A.B., 1984, PRINCIPAIS DEPOSITOS MINERAIS: CONCEITOS, METODOLOGIA, E LISTAGEM, CAPITULO IX, IN GEOLOGIA DO BRASIL, EDS., C. SCHOBBENHAUS, D. DE A. CAMPOS, G.R. DERZE, AND H.E. ASMUS: DEPARTAMENTO NACIONAL DA PRODUCAO MINERAL, PP. 359-419.1945 GEOLMAP W.D. JOHNSTON1969 COMPILE R.H. NAGELL1972 DIREXPL BARBOSA (DNPM)1973 DIREXPL PORTO (DNPM)CIMRIWHITE, M.G., 1973, TIN AND TUNG. RESOUR. OF BRAZ, CESAR (1984).WHITE, M.G., 1973, TIN AND TUNGSTEN RESOURCES OF BRAZIL, CESAR (1984).