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Cretaceous transportation of Eastern Sichuan arcuate fold belt in three dimensions: Insights from AFT analysis
Author(s): WANG Ping, LIU Shao-Feng, GAO Tang-Jun, WANG Kai
Pages: 1662-
1673
Year: 2012
Issue:
5
Journal: Chinese Journal of Geophysics
Abstract: 对川东弧形褶皱带北段、中段和南段的三条剖面,进行了7件样品的磷灰石裂变径迹(AFT)测试,结合前人已发表的4件样品,分析模拟了主要背斜的隆升—剥露热历史.结果表明川东弧形带主体构造变形时间为135→65 Ma,即早白垩世早期到晚白垩世晚期.进而建立并对比了三条剖面的构造变形时序,揭示出川东弧形带的三维构造扩展历史:(1)平行于构造线走向,表现为从中心向两翼的构造扩展,弧形带中段的构造变形最早,起始...
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