摘要
构造域是岩石圈划分中最大一级构造分区,一般将大洋岩石圈及与相邻大陆相互作用的构造带归为同一构造域,其实质是强调以大洋岩石圈为主导动力源.在梳理青藏高原北部造山带、天山-兴蒙造山带数十条蛇绿构造混杂岩带时代、性质的基础上,结合古生代古地理编图研究成果,提出中华古陆(地)块群在古生代时期为介于古亚洲洋和特提斯洋间的陆链.现今的天山-兴蒙造山带是古亚洲洋与不同性质陆块相互作用的结果,属古亚洲构造域组成部分,秦、祁、昆造山带是特提斯洋与中华古陆(地)块群相互作用结果,属特提斯构造域有机组成部分.
Tectonic domain is considered to be the highest tectonic unit in construction division of lithosphere. Generally, ocean plate and related continent plate and the tectonic belt between them are classified to be the same tectonic domain,which emphasized oceanic lithosphere is the leading power source in essence. Based on combing out the ages and properties of dozens of ophiolite melange belts in northern Qinghai-Tibet Plateau and Tianshan-Xing＇an-Mongolian orogenic belts, we propose that China landmass group is a land chain which distribute between Paleo-Asia Ocean and Tethys during Paleozoic combined with the study on the restoration of Paleozoic paleogeography. Today＇s Tianshan - Xing＇an -Mongolian orogenic belt is the result of interaction of Paleo - Asian Ocean and landmasses with different characteristics, a part of Paleo-Asian tectonic domain. Qinling - Qilian - Kunlun orogenic belt is the product of interaction of Tethys and China ancient landmass group, belong to Tethys tectonic domain.
出处
《新疆地质》
CAS
CSCD
北大核心
2011年第3期247-250,共4页
Xinjiang Geology
基金
中国地质调查局青藏高原前寒武纪地质和古生代构造-古地理综合研究(1212010610102)项目资助
关键词
构造域
岩石圈
古亚洲洋
特提斯
古陆琏
Tectonic domain
Lithosphere
Paleo-Asian Ocean
Tethys
Ancient land chain
