Research of the Mixed Model and Developmental Characteristic of the Clastic-carbonatite Diamictite Facies in the Middle of Yangzi Area

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  • 1.Geoscience Research Institute,Shengli Oilfield Company,SINOPEC,Dongying 257015,China; 2.Resources and Information Institute,University of Petroleum China,Qingdao 266555, China

Received date: 2012-07-11

  Revised date: 2012-09-21

  Online published: 2013-04-10

Abstract

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.

Cite this article

ZHANG Peng-fei,CHEN Shi-yue,YANG Huai-yu,MA Shi-kun . Research of the Mixed Model and Developmental Characteristic of the Clastic-carbonatite Diamictite Facies in the Middle of Yangzi Area[J]. Natural Gas Geoscience, 2013 , 24(2) : 365 -371 . DOI: 10.11764/j.issn.1672-1926.2013.02.365

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