The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
SU-WAN BLOCK: AN INDEPENDENT TECTONIC UNIT DURING PERIOD OF TETHYAN EVOLUTION
Author(s): 
Pages: 77-87
Year: Issue:  2
Journal: JOURNAL OF PALAEOGEOGRAPHY

Keyword:  苏皖地块建造-变形特征特提斯苏鲁洋;
Abstract: 基于苏皖地区的基底性质、晚元古代-中生代特征的沉积-火成建造、区域成矿和构造专属性,结合古地磁资料,提出了苏皖地块是特提斯演化阶段独立的构造单元的观点.它以苏鲁洋与华北克拉通间隔.震旦纪-早古生代的建造及变形特征与扬子克拉通有差异.石炭纪末和早二叠世的沉积和生物群表明它当时是古特提斯洋域里的一个中间地块,此时它已独立于扬子克拉通之外.三叠纪时苏鲁洋发生过大规模的消减但未闭合,因而苏皖地块的晚三叠世植物群与扬子克拉通有较明显区别.苏皖地块与华北克拉通(指胶辽地块)碰撞可能发生在早白垩世,该地区超高压变质岩的折返与之有关.之后,苏皖地块成为亚洲大陆雏形的一部分.
Related Articles
No related articles found