- 责任者：Chen Shiyue (College of Geo-Resources and Information ; CUP ; Qingdao 266555 ; China) ; Li Cong
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(5)
- 关键词：不整合 ; unconformities ; 扬子板块 ; Yangtze Plate ; 华夏地块 ; Cathaysia Massif
- 页码：p.1212-1219
- 图表：8 illus., 27 refs.
- 分类号：0300
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
///The tectonic nature of Jiangnan-Xuefeng orogenic belt is a controversial issue which has aroused great attention among geologists in China. The nature of the Caledonian and Indosinian unconformity in Xuefeng region reflects the sphere of influence in the two stages of orogeny. Based on field geological survey, the authors have found that Jing’an-Xupu-Jingzhou fault and Xiushui-Cili-Baojing-Sandu fault are boundaries of different types of unconformity and the limits of influence in Caledonian orogeny. In the vast area on the west side of Xiushui-Cili-Baojing-Sandu fault there is no obvious fold deformation, but vertical uplift is well developed, correspondingly forming parallel unconformity. The area between the two faults is a weak fold deformation zone with well developed slightly angular unconformity. The distribution of different types of unconformity in Indosinian period, which is bounded by Puqi-Cili-Baojing fault and Xianning-Hefeng-Longshan fault, has certain continuity relationship with the distribution of the Caledonian orogeny.