| Location: | El Beni, Bolivia, South America |
| Lat / long: | -13.60418, -62.07497 |
| dep_id: | 60000179 |
| mrds_id: | BL30167 |
| Commodity type: | metallic |
| Major mineral: | Arsenic, Gold |
| Operation type: | Unknown |
| Deposit type: | VEIN |
| Production size: | Small ammount of material produced |
| Development status: | Producer |
| model: | {119: Placer Au-PGE}{273: Low-sulfide Au-quartz vein} |
| alteration: | WALLROCK 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. |
| ore_ctrl: | VEIN 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 |
| Reporter: | LONG, KEITH R. |
| dy_ba: | < |
| disc_yr: | 1688 |
| discr: | Jesuits(?) |
| References: |
- Deposit:: LITHERLAND AND OTHERS (1986) P. 107-109.
- Deposit:: GUSTAVSON ASSOC., 1992, COMPENDIUM OF THE ECONOMIC GEOLOGY OF BOLIVIA.
- Deposit:: PITFIELD, P.E.J. AND OTHERS, 1987, MAPA GEOLOGICO DEL AREA DE PUERTO VILLAZON: BRITISH GEOLOGICAL SURVEY, 1:250,000.
- Deposit:: LITHERLAND, M., 1986, THE GEOLOGY AND MINERAL RESOURCES OF THE BOLIVIAN PRECAMBRIAN SHIELD: BRITISH GEOLOGICAL SURVEY OVERSEAS MEMOIR 9, 153 P.
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