Structural Evolution of Dabashan Mountain
详细信息
- 责任者：Cheng Wanqiang (Key Laboratory of Tectonics and Petroleum Resources ; Ministry of Education ; China University of Geosciences ; Wuhan 430074 ; China) ; Yang Kunguang
- 刊名：Earth Science Frontiers
- 出版年：2009
- 卷期：16(3)
- 关键词：构造演化 ; structural evolution ; ESR定年 ; ESR dating ; 大巴山 ; Daba Mountains
- 页码：p.197-206
- 图表：3 illus., 2 tables, 29 refs.
- 分类号：0300
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Fifty eight samples from tectogenetic α quartz veins in Dabashan Mountain North Dabashan Mountain (N. DBS) since the Mesozoic can be divided into three stages: 243.7~201.5 Ma(the Late Triassic), 165.6~91.2 Ma(the Late Jurassic to the Early Cretaceous) and 68.6 Ma-present (the Cenozoic), while the South Dabashan Mountain (S. DBS) can be divided into another correspondent three stages: 170~160 Ma (the Bajocian to the Callovian), 147.3~94.1 Ma(the end of the Late Jurassic to the Early Cretaceous)and 66.7 Ma-present (the Cenozoic). Thus, the S. DBS is closely related to the N. DBS in structural evolution. The ESR dating results are consistent with other geochronology evidences very well.
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