Observations made in different superlarge\|large gold deposits in Ailaoshan gold metallogenic belts, Yunnan Province, China, on the eastern margin of the Qingzang (Himalayas—Karakoram—Tibet) were investigated. Geote...Observations made in different superlarge\|large gold deposits in Ailaoshan gold metallogenic belts, Yunnan Province, China, on the eastern margin of the Qingzang (Himalayas—Karakoram—Tibet) were investigated. Geotectonically, the study area is situated in the conjoint between the Tethys and Himalayas tectonic domain, characterized by very complex geological structure, with strongly influenced by the Himalayas in late development.1\ Regional geology and gold deposits\;Ailaoshan gold metallogenic belts is localized between Ailaoshan super lithospheric faults and Jiujia—Anding brittle\|ductile shear zone, with NNW\|trending about 250km long. To southward, Zhenyuan supergiant gold deposits, Mojiang large gold deposits, and Daping giant gold deposits hosted in low metamorphic volcanic\|sedimentary rocks (D—C). Ore types include gold\|bearing quartz veins, gold\|bearing altered rocks, and the mixing of the two types. Most of gold orebodies took their positions in the substructures of the brittle\|ductile shear zone.展开更多
20150130Chen Di(Hunan Institute of Geological Survey,Changsha 410116,China);Chen Yanming Magma Mixing in the Xitian Pluton of Hunan Province:Evidence from Petrography,Geochemistry and Zircon U-Pb Age(Geology in China,...20150130Chen Di(Hunan Institute of Geological Survey,Changsha 410116,China);Chen Yanming Magma Mixing in the Xitian Pluton of Hunan Province:Evidence from Petrography,Geochemistry and Zircon U-Pb Age(Geology in China,ISSN1000-3657,CN11-1167/P,41(1),2014,p.61-78,14illus.,2tables,69refs.)Key words:biotite granite,monzogranite,U-Pb dating,Hunan Province The Xitian pluton area is located in the middle segment of the Nanling Mountains,展开更多
文摘Observations made in different superlarge\|large gold deposits in Ailaoshan gold metallogenic belts, Yunnan Province, China, on the eastern margin of the Qingzang (Himalayas—Karakoram—Tibet) were investigated. Geotectonically, the study area is situated in the conjoint between the Tethys and Himalayas tectonic domain, characterized by very complex geological structure, with strongly influenced by the Himalayas in late development.1\ Regional geology and gold deposits\;Ailaoshan gold metallogenic belts is localized between Ailaoshan super lithospheric faults and Jiujia—Anding brittle\|ductile shear zone, with NNW\|trending about 250km long. To southward, Zhenyuan supergiant gold deposits, Mojiang large gold deposits, and Daping giant gold deposits hosted in low metamorphic volcanic\|sedimentary rocks (D—C). Ore types include gold\|bearing quartz veins, gold\|bearing altered rocks, and the mixing of the two types. Most of gold orebodies took their positions in the substructures of the brittle\|ductile shear zone.
文摘20150130Chen Di(Hunan Institute of Geological Survey,Changsha 410116,China);Chen Yanming Magma Mixing in the Xitian Pluton of Hunan Province:Evidence from Petrography,Geochemistry and Zircon U-Pb Age(Geology in China,ISSN1000-3657,CN11-1167/P,41(1),2014,p.61-78,14illus.,2tables,69refs.)Key words:biotite granite,monzogranite,U-Pb dating,Hunan Province The Xitian pluton area is located in the middle segment of the Nanling Mountains,
