Tóm tắt:

The San Xay-Attapeu area has a rather complex geological síructure, and strong magma-tectonic activation is an important tactor in the íormation of endogenous ores, including gold mineralization. Gold mineralization scatters in the transition zone of earlỵ Neo-Proterozoic-Cambrìan terrigenous tọrrnations (NP-01). The minera! ore consists mainiy of pyrite, chalcopyrite, rutile, pyrotine, magneiite, hematite and goid. The geoloaical íacíors controlling the ore in the area are crack in the sub-longitude. The ores are located mainly in the broken zones, cracked slots of longitude and sub-Ị longitude developed in the metamorphic sedimentary rocks that are sericitized, chloritated, etc. The ores are quartz-sulfur and gold. Seif-produced, pyrethrum-free gold has a peer-to-peer relationship with pyrite, chalcopyrite dĩsseminated in thermally-derived quartz related to the intiusicn of middle Triassic age (T2). Based on the relnted geological tactors and the control of the ore (found antecedents and signs), have delineated the areas of different prospects (ỉeve! A, leveỉ B and level C). Research results show that the area of San Xay-Attapeu - in the South of The Lao People's Democratic Republic is very promising area of original gold.