Proterozoic copper metaliogenic framework and geochemistry steep zone in central Yunnan Province  

作　　者：CHANG Xiangyang, ZHU Bingquan and DONG Yunpeng Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, 510640, China 

出　　处：《Chinese Science Bulletin》1999年第S2期163-164,共2页

摘　　要：THE wildly horizontal and vertical chemical heterogeneties, which result from the inchoate core-mantledifferentiation of the globe and the spatio-temporal difference of various regions in the globe, bring on themantle and crust from different landmass and oceans with markedly elemental and isotopic signatures.Wherefore these signatures could be used to differentiate the attribute from various landmass or oceans andrecover the scent of kinematics and chemical geodynamics process. It is a quantificational method compared with the division by geotectonics facies and paleontologic fauna. Based on the geochemistry mapping of elements and multi-isotopic systematics of rocks derived frommantle and crust and combined with the studies on geophysical tomographic image, four type geochemicalprovinces can be distinguished. They are: (i) the Pacific (such as N-Pacific, N-Atlantic, the

关 键 词：PROTEROZOIC COPPER METALLOGENESIS GEOCHEMICAL STEEP ZONE Yunnan. 

分 类 号：P618.41[天文地球—矿床学]