Holocene Diatom Assemblages, Chronology and Palaeoenvironment of the Borehole CH19 in the Northwestern Bohai Bay, China

• 责任者：Shang Zhiwen (School of Graduates ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Tian Lizhu
• 刊名：Geological Bulletin of China
• 出版年：2010
• 卷期：29(5)
• 关键词：全新世 ; Holocene ; 硅藻门 ; Bacillariophyta ; 渤海湾盆地 ; Bohaiwan Basin
• 页码：p.675-681
• 图表：2 illus., 1 table, 31 refs.
• 分类号：1400
• issnNo：ISSN1671-2552
• isbnNo：CN11-4648/P

The diatoms of borehole CH19, located at the shallow sea area, northwestern Bohai Bay, have been systematically studied and, totally, 36 species in 17 genera were identified. Consequently, Ⅰ—Ⅶ diatom zones have been divided according to the characteristics of the diatom assemblages, the sediments and the OSL and AMS ¹⁴C chronological framework of the borehole as well. The diatom and chronostratigraphical results reveal that the study area was changed from the lacustrine to marine environment in Holocene.