Description of Cretaceous Sedimentary Sequence of the Second and Third Member of the Qingshankou Formation Recovered by CCSD-SK-Is Borehole in oft-com:office:smarttags" />
详细信息
- 责任者：Wang Pujun (College of Earth Sciences ; Jilin University ; Changchun 130061 ; China) ; Gao Youfeng
- 刊名：Earth Science Frontiers
- 出版年：2009
- 卷期：16(2)
- 关键词：沉积序列 ; sedimentary sequence ; 晚白垩世 ; Upper Cretaceous ; 松辽平原 ; Songliao Plain
- 页码：p.288-313
- 图表：2 illus., 1 plate, 18 refs.
- 分类号：1200
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
The second and third member of the Qingshankou Formation recovered by CCSD-SK-Is borehole (China Cretaceous Continental Scientific Drilling-Songke-I-the south borehole) is oft-com:office:smarttags" />415.61 m long and 100% of cores recovery. The age of the member corresponds approximately to the Coniacian. The sequence and process of lithology-lithofacies and cyclic stratigraphy were revealed by a detailed core description. Twelve rock types and two kinds of sedimentary subfacies including deep lake and shallow lake were recognized from the drilling core of the second and third member of the Qingshankou Formation. Ten sedimentary microfacies are present, including dolostone, marl, limestone, oil shale, deep lake turbidite , volcanic ash, seismite, deep lake mudstone, and shallow lake mudstone and shallow lake turbidite