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Sedimentary Facies, Sedimentary Model and Evolution of Changxing Formation in space prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:place w:st="on"><st1:PlaceName w:st="on">Northeastst1:PlaceName> <st1:PlaceName w:st="on">Sichuanst1:PlaceName> <st1:PlaceType w:st="on">Basinst1:PlaceType>st1:place>
详细信息   
摘要

style="MARGIN: 0cm 0cm 0pt" class=MsoNormal>Changxing Formation in Northeast space prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" /><st1:State w:st="on"><st1:place w:st="on">Sichuanst1:place>st1:State> Basin is marine deposit which can be divided into platform margin organic reefs, platform margin shoals, open platform, limited platform, carbonate ramp, basinal facies and platform evaporite facies. Affected by second-grade sea level changes, the transgressive reef-beach bodies are well developed in Changxing Formation, forming two types of favorable reservoirs. The reef-beach facies migrated and uplifted in vertical direction and developed in zonal form on both sides of the basin are controlled by sedimentary facies. Based on detailed research on the characteristics of sedimentary facies, drilling data, outcrops, core and thin section observation, the authors have built the sedimentary model and evolution model of the study area and compiled the sedimentary facies distribution map.

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