Stratigraphic Division of the Late Quaternary Strata along the Coast of Bohai Bay
详细信息
- 责任者：Xu Qinmian (Tianjin Institute of Geology and Mineral Resources ; Tianjin 300170 ; China) ; Yuan Guibang
- 刊名：Acta Geologica Sinica
- 出版年：2011
- 卷期：85(8)
- 关键词：晚第四纪 ; Late Quaternary ; 地层划分 ; stratigraphic classification ; 渤海湾 ; Bohai Bay
- 页码：p.1352-1367
- 图表：7 illus., 3 tables, 76 refs.
- 分类号：1400
- 出版序号：1948
- issnNo：ISSN0001-5717
- isbnNo：CN11-1951/P
摘要
This paper, taking four drilling holes cutting through the upper Pleistocene as an example to classify the late quaternary strata along the coast of Bohai Bay, discussed lithofacies paleogeography and neotectonic characteristics, based on lithology and sedimentary structures, 14C ages of peat and humus mud, micropaleontology and palynology, and the theory of climatic stratigraphy and sequence stratigraphy. The coast of Bohai Bay was characterized by differential subsidence during Late Quaternary. The differential subsidence rate between southern Huanghua depression and Chengning uplift reached 0.16 mm/a, while the rate of the northern and middle sections of the Huanghua depression reached 0.31 mm/a.