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《Progress In Precambrian Research》 2001-01
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Study Advances of Neoarchaean-Paleoproterozoic Tectonic Evolution in the North China Craton

ZHAI Ming guo, GUO Jing hui, ZHAO Tai ping (Institute of Geology & Geophysics, Chinese Academy of Sciences, Beijing, 100029)  
The one of most important advances of earth sciences in China is early formation and evolution of North China continental block in last two decades.The representative advances in the first decade in clude understanding of layered rock sequences and massive rock sequences,division of greenstone belts and high grade metamorphic regions,tectonic styles and structural analyses,metamorphic history and dynamics,geochronology and significant geological events.The representative advances in the second decade include distinguishing old continental micro blocks and terrenes,remnant ancient ocean crust and junior continent crust,composition and texture of Precambrian lower crust,amalgmation and break up of supercontinent,early Precambrian plate tectonics and plume tectonics.The most important contribution should be the discovery of high pressure granulites and eclogites,which greatly improves study on some geological prospects,especially in tectonic mechanism of old continent formation and evolution. A lot of study indicate that the main growth period of the North China craton is during 2.9~2.7 Ga, however the most intensive and significant tectonic events took place during 2.6~2.45 Ga and 1.9~1.75 Ga, for which more geological evidence seem support a supercontinental tectonic model to understand.
【Fund】: 国家基金!委项目 ( 4 9832 0 0 3、4 9872 0 64、4 0 0 72 0 61);; 中科院重大创新项目! (KZCX1- 0 7)
【CateGory Index】: P542
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