Diagenesis of the Palaeogene Clastic Rocks in the Raoyang Depression
详细信息
- 责任者：Xu Lili (College of Geo-Resources and Information ; China University of Petroleum ; Qingdao 266555 ; China) ; Guo Jingxing
- 刊名：Sedimentary Geology and Tethyan Geology
- 出版年：2010
- 卷期：30(2)
- 关键词：古近纪 ; Paleogene Period ; 成岩作用 ; diagenesis ; 冀中坳陷 ; Jizhong Depression
- 页码：p.26-31
- 图表：8 illus., 12 refs.
- 分类号：0803
- issnNo：ISSN1009-3850
- isbnNo：CN51-1593/P
摘要
The present paper deals with lithology, diagenesis and diagenetic facies of the Palaeogene clastic rocks in the Raoyang Depression. The sandstone reservoirs have low compositional and textural maturity and moderate roundness and sorting, and consist dominantly of feldspar sandstone and lithic feldspar sandstone. The diagenesis comprises compaction, cementation, metasomatic alteration and dissolution. The diagenetic facies associations from the sandstone reservoirs in the middle and deeper parts may be grouped into four types: cementation-dissolution, cementation, compaction-cementation and cementation- dissolution- metasomatism.