New Evidences of Early Silurian Tongzi Uplift from Southern Upper Yangtze Sea
详细信息
- 责任者：Wang Yi (State Key Laboratory of Palaeobiology and Stratigraphy ; Nanjing Institute of Geology and Palaeontology ; CAS ; Nanjing 210008 ; China) ; Rong Jiayu
- 刊名：Journal of Stratigraphy
- 出版年：2013
- 卷期：37(2)
- 关键词：石牛栏阶 ; Shiniulanian Stage ; 事件地层学 ; event stratigraphy ; 贵州 ; Guizhou Province
- 页码：p.129-138
- 图表：illus., 1 table, 21 refs.
- 分类号：1200
- issnNo：ISSN0253-4959
- isbnNo：CN32-1187/P
摘要
New evidences of Early Silurian Tongzi Uplift have been found at four new sections in the Zheng’an and Wuchuan area in Guizhou Province. Tongzi Uplift occurred as several pulses in late Aeronian, mostly expressed as the development of unconformity (including the uneven boundary between the two formations above, paleokarst), weathering crust, and mud cracks. The Tongzi Uplift resulted in the northward migration of the shoreline of the Qianzhong Oldland. The magnitude of this uplift varies, with stronger uplift in southern areas than in northern areas. The Tongzi Uplift is significant for regional stratigraphic correlation. It is a regional event controlled by tectonic movement of South China. The horizontal process was converted to vertical movement, which led to an uneven uplift in the border regions of Sichuan, Chongqing and Guizhou provinces.