New advance in oceanic island basalts of ophiolitic mélange from the West Junggar and implications for tectonic evolution of the Central Asian Orogenic Belt
作者单位：Earth Science & Resources College of Chang′an University
会议名称：《2014年中国地球科学联合学术年会——专题45：中亚-兴蒙造山带》
会议日期：2014年
学科分类：070904[理学-构造地质学] 0709[理学-地质学] 07[理学] 070901[理学-矿物学、岩石学、矿床学]
基 金：financially supported by the National Nature Science Foundation of China (41303027) Special Fund for Basic Scientific Research of Central Colleges, Chang’an University (2014G1271058)
摘 要：Origin study of ocean island basalts(OIB)is one of fundamental issues in petrology and geochemistry of solid Earth at present,usually it was considered driving from the plume(Williams and Garnero,1996).Wilson(1963)first suggested that the Hawaiian Chain of Islands was produced by oceanic lithosphere moving over a stationary‘hot spot’in the mantle,and Morgan(1971)first suggested the existence of plumes in the Earth’s *** of the key rocks to test the role of plumes is alkaline basalts provide significant information on mantle magma sources and geodynamic *** Central Asian Orogenic Belt(CAOB)is situated among the Siberia,East European,Tarim and North