西秦岭新生代以来地质构造过程对青藏高原隆升与变形的约束.pdfVIP

第 16 卷 第 6 期 ( ( ) ) 地学前缘 中国地质大学 北京 ; 北京大学 Vol . 16 No . 6 2009 年 11 月 ( ( ) ) Eart h Science Frontier s China U niver sit y of Geo sciences Beij ing ; Peking U niver sit y Nov . 2009 西秦岭新生代以来地质构造过程对青藏高原隆升和 变形的约束 郭进京 , 　韩文峰 , 　李雪峰 天津城市建设学院 土木工程系 , 天津 300384 Guo J inj in g , 　Han Wenf en g , 　Li Xuef en g D ep art ment of Ci v i l Eng i neeri ng , Ti anj i n I ns t it ute of Urban Cons t ruct ion , Ti anj i n 300384 , Chi na Guo Jinj ing , Han Wenfeng , Li Xuefeng. The Cenozoic tectonic evolution of the west Qinling : Constraints on the uplif t and de f ormation of the Tibetan Plateau. Ea r t h Science F r ont ier s ,2009 , 16( 6) :215225 Abstract : The Cenozoic t ectonic and geomorp holo gical p rocesses of t he west Qinling as a p art of QinghaiTibet an p lat eau could p rovide some con st raint s on t he up lift and deformation mo del of t he QinghaiTibet an p lat eau . Ba sed on t he analysi s of t he Cenozoic sediment ary st rat a and it s deformation feat ures , regional fault f ramework and it s kinematics , and geomorp hological recor ds , we could reach t he following p reliminary under st anding . ( 1) Ba sed on t heir rock compo sition , sp atial di st ribution and t ectonic deformation charact eri stics , we can di vide t he L at e MesozoicCenozoic red bed sediment ary st rat a in t he west Qinling into t he L at e J ura ssicEarly Cret aceou s , t he L at e Cret aceou sPaleogene and t he Neo gene t hree t ectonic st