Deposit
Deposit typeVEIN
Model119: Placer Au-PGE273: Low-sulfide Au-quartz vein
Deposit sizeS
Ore controlVEIN SWARMS 1.5 KM NORTH AND PARALLEL TO AXIAL TRACE OF DOUBLY-PLUNGING ANTIFORM. THESE FORM SOUTH-DIPPING SADDLE REEFS IN COMBINATION WITH CONJUGATE AND BEDDING-PARALLEL, NORTH-DIPPING VEINS. THESE ARE ALL CUT BY NW-TRENDING, CONJUGATE VEIN SWARMS LOCALIZED AT AN INFLEXION OF ONE MAIN VEIN SYSTEM
Geology
AlterationWALLROCK ALTERATION IN MAIN VEIN SYSTEM CONSISTS OF WELL-DEVELOPED HYDROMUSCOVITE, KAOLIN, AND ARSENOPYRITE. ELSEWHERE VEINS HAVE NARROW (< 0.8 M WIDE) SERICITE ALTERATION ENVELOPES WITH LITTLE OR NO PYRITE OR ARSENOPYRITE.
Economic & production
Development statusProducer
Discovery year1688
Identification
Deposit ID60000179
MRDS IDBL30167
RegionSA
Data scoreC
Coordinates-13.60418, -62.07497
References
LITHERLAND AND OTHERS (1986) P. 107-109.GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIA.PITFIELD, P.E.J. AND OTHERS, 1987, MAPA GEOLOGICO DEL AREA DE PUERTO VILLAZON: BRITISH GEOLOGICAL SURVEY, 1:250,000.LITHERLAND, M., 1986, THE GEOLOGY AND MINERAL RESOURCES OF THE BOLIVIAN PRECAMBRIAN SHIELD: BRITISH GEOLOGICAL SURVEY OVERSEAS MEMOIR 9, 153 P.