South China's Gondwana connection in the Paleozoic:Paleomagnetic evidence  

作　　者：ZHANGShihong 

机构地区：[1]SchoolofEarthSciencesandResources,ChinaUniversityofGeosciences,Beijing100083,China

出　　处：《Progress in Natural Science:Materials International》2004年第1期85-90,共6页自然科学进展·国际材料（英文版）

基　　金：SupportedbytheNationalNaturalScienceFoundationofChina (GrantNos.40 0 3 2 0 10Bandthe 40 3 11130064)andtheMinistryofGeologyandMineralResourcesofChina(GrantNo .95 0 110 5 )

摘　　要：The reconstruction in which the South China Block (SCB) lies along the Great India Australia region of Gondwana margin is tested by using existing Paleozoic paleomagnetic data. Under the proposed reconstruction, all six high quality paleopoles from the SCB between the Early Cambrian and late Early Devonian (～400 Ma) are in good agreement with coeval paleopoles from Gondwana. Thereafter, the apparent polar wander paths for the SCB and Gondwana diverge markedly. This indicates that the SCB had been part of Gondwana and the connection was intact from at least Early Cambrian until late Early Devonian, but they began to separate by late Middle Devonian (～375 Ma).The reconstruction in which the South China Block (SCB) lies along the Great India Australia region of Gondwana margin is tested by using existing Paleozoic paleomagnetic data. Under the proposed reconstruction, all six high quality paleopoles from the SCB between the Early Cambrian and late Early Devonian (～400 Ma) are in good agreement with coeval paleopoles from Gondwana. Thereafter, the apparent polar wander paths for the SCB and Gondwana diverge markedly. This indicates that the SCB had been part of Gondwana and the connection was intact from at least Early Cambrian until late Early Devonian, but they began to separate by late Middle Devonian (～375 Ma).

关 键 词：South China block GONDWANA PALEOMAGNETISM reconstruction 

分 类 号：P548[天文地球—构造地质学]