燕山带中生代主要构造事件与板块构造背景问题
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P542.4 P551

基金项目:

中国国家自然科学基金(编号49872072),美国科学基金(编号EAR-9627909和EAR-8904985)


Major Mesozoic Tectonic Events in the Yanshan Belt and the Plate Tectonic Setting
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    摘要:

    对冀北、辽西火成岩体和火山岩的定年与野外构造的研究揭示,燕山地区主要缩短变形期为:①前中侏罗期(180Ma);②晚侏罗期(161~148Ma);③早白垩期(143~127Ma→117Ma)。前中侏罗期为SN向缩短可能与蒙古弧-华北板块沿索伦缝合带拼合有关。晚侏罗世-早白垩世的缩短变形可能是西伯利亚与蒙古-华北拼合板块沿其北1000~1800km外,蒙古-鄂霍茨克缝合带碰撞的板内响应。我国东部NNE

    Abstract:

    Our field work and geochronologic studies in northern Hebei and western Liaoning areas indicate that the major Mesozoic contractional events in the Yanshan belt are of (1) pre-Middle Jurassic (Indosinian?) , (2) Late Jurassic and (3) Early Cretaceous age.

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郑亚东 Davis, GA.2000.燕山带中生代主要构造事件与板块构造背景问题[J].地质学报,74(4).
Zheng Yadong G. A. Davis Wang Cong B. J. Darby Zhang Changhou Dept. of Geology, Peking University, Beijing, China, Dept. of Earth Sciences, University of Southern California, Los Angeles AC, USA, China University of Geosciences, Beijing, China.2000. Major Mesozoic Tectonic Events in the Yanshan Belt and the Plate Tectonic Setting[J]. Acta Geologica Sinica,74(4).

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