Research of the Mixed Model and Developmental Characteristic of the Clastic-Carbonatite Diamictite Facies in the Middle of Yangzi Area
详细信息
- 责任者：Zhang Pengfei (Geoscience Research Institute ; Shengli Oilfield Company ; SINOPEC ; Dongying 257015 ; China) ; Chen Shiyue
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(2)
- 关键词：碎屑岩储集层 ; clastic reservoirs ; 碳酸盐岩储集层 ; carbonate reservoirs ; 扬子地区 ; Yangtze Region
- 页码：p.365-371
- 图表：illus., 13 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
The mixed sedimentation was a new research field for the sedimentology.In the study area,the Paleozoic sedimentary rocks have various types.The clastic rock and carbonatite were alternately developed,and it provided a good case study for the research of mixed sedimentation.Based on the research of the Paleozoic depositional framework,we analyzed the depositional pattern and sedimentary evolution of the study area.Two mixed sedimentary facies were proposed for the study area,i.e.,clastic-carbonatite mixed platform facies in the late Ordovician and early Silurian,and the clastic-carbonatite mixed continental shelf in early Cambrian.The clastic-carbonatite mixed platform facies was developed in the transitional area among the terrigenous clastic offshore,arenaceous pelitic tidal flat and carbonatite slope or platform.The mixed sedimentary continental shelf was a kind of continental shelf developed with the clastic rock and carbonatite.In the study area,the mixed sedimentation was mainly developed in the early Paleozoic carbonatite platform with edges-undercompensation basin combination,and the Devonian-Permian clastic tidal flat-carbonatite platform combination.
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