- 责任者：Sun Linhua (School of Earth Science and Engineering ; Suzhou University ; Suzhou 234000 ; China) ; Gui Herong
- 刊名：Acta Geoscientica Sinica
- 出版年：2011
- 卷期：32(5)
- 关键词：构造环境 ; tectonic setting ; 碎屑岩 ; clastic rocks ; 岩石地球化学 ; lithogeochemistry ; 安徽 ; Anhui Province
- 页码：p.523-532
- 图表：4 illus., 1 table, 30 refs.
- 分类号：0300
- 出版序号：1565
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
///Based on a geochemical analysis of sandstones of Neoproterozoic Shijia Formation in Suzhou of northern Anhui Province, in combination with previously published geochemical data of shales of Neoproterozoic Liulaobei Formation, the authors made a comparatively study of the provenance and tectonic setting of these two suites of clastic rocks. The results indicate that the shales of Liulaobei Formation might have originated from the first cycle of intermediate-felsic volcanic rocks with intense weathering, whereas sandstones of Shijia Formation were probably generated by low-intense weathering of the recycled old crust material. These data imply that they were deposited in different settings. In combination with previous studies of the Neoproterozoic evolution in northern Anhui Province, these results demonstrate that the tectonic background of the southeast margin of North China Craton underwent transition from active to passive during Neoproterozoic.