Normal>Contemporaneous Deformed Structures in Ordovician Wufeng Formation in Southern Chongqing and Northern Guizhou, and Its Geological Significances

• 责任者：Zhao Mingsheng (School of Resources and Environments ; Guizhou University ; Guiyang 550003 ; China) ; Wang Yue
• 刊名：Geological Review
• 出版年：2010
• 卷期：56(2)
• 关键词：构造变形 ; tectonic deformation ; 重庆 ; Chongqing ; 贵州 ; Guizhou Province
• 页码：p.174-179
• 图表：2 illus., 1 plate, 30 refs.
• 分类号：0300
• issnNo：ISSN0371-5736
• isbnNo：CN11-1952/P

Normal>The contemporaneous deformed structures, which were formed between post-deposition and pre-diagenesis, are found in the black shales in the Wufeng Formation of the Ordovician at Qijiang, southern Chongqing and Tongzi, northern Guizhou. The contemporaneous deformed structures in the lower-middle Wufeng Formation from Qijiang is composed of graded-faults and small-sized folds and is overlaid and underlain the normal sedimentary black shales; and it can be re-divided into three structural layers. The contemporaneous deformed structures in the Wufeng Formation indicated that the basin might be an uneven paleogeography during the Late Ordovician in the Chongqing-Guizhou area, and happened multistage tectogenesis that possibly associate with volcanic activities.