【摘 要】
：
The Qinling-Dabie-Sulu orogen was formed by the joining of the North and South China blocks,but the exact timing of the closure of the Paleo-Tethys ocean is still a matter of debate.Along with the con
【机 构】
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State Key Laboratory of Geological Processes and Mineral Resources,School of Earth Sciences and Reso
【出 处】
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The International Conference on Continental Dynamics(2014年大陆
论文部分内容阅读
The Qinling-Dabie-Sulu orogen was formed by the joining of the North and South China blocks,but the exact timing of the closure of the Paleo-Tethys ocean is still a matter of debate.Along with the convergence and amalgamation of the Qinling microblock and the Yangtze plate,large quantities of Triassic granites that were commonly associated with abundant mafic mi-crogranular enclaves (MMEs) were emplaced in the Qinling terrane,thereby providing valuable insights into the interaction process among dis-tinct magmas in different stages of the evolution of the Qinling terrane.This paper presents the field observation,petrography,geochronology and geochemistry of the MMEs and their host granites from the Dewulu pluton in West Qinling.The granites composed of granodiorite and a small amount of granodioritic porphyry are mainly metaluminous and high-K calc-alkaline.
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