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THE APPLICATION OF MICROPALEONTOLOGY IN HIGH-RESOLUTION SEQUENCE STRATIGRAPHY AND PALEOENVIRONMENTAL RECONSTRUCTION:A CASE STUDY OF THE YINGGEHAI-QIONGDONGNAN BASIN

HE Wei-ju

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Abstract

We analyzed the sequence stratigraphy and biostratigraphy(based on the abundance of foraminifers and calcareous nannofossils)of 27 drill cores in the Yinggehai-Qiongdongnan Basin.Twenty third-order sequences were recognized in Oligocene TB1.1 to Quaternary TB3.9 strata.Based on the abundance and diversity of microfossils,assemblage characteristics,and estimated water depths,paleoenvironments were reconstructed for reservoir sandstones in S29-28 under thefault No.1zone.The study establishes a sequence stratigraphic framework and a sedimentary facies model for the Yinggehai-Qiongdongnan Basin.

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What this paper is about

We analyzed the sequence stratigraphy and biostratigraphy(based on the abundance of foraminifers and calcareous nannofossils)of 27 drill cores in the Yinggehai-Qiongdongnan Basin.Twenty third-order sequences were recognized in Oligocene TB1.1 to Quaternary TB3.9 strata.Based on the abundance and diversity of microfossils,assemblage characteristics,and estimated water depths,paleoenvironments were reconstructed for reservoir sandstones in S29-28 under thefault No.1zone.The study establishes a sequence stratigraphic framework and a sedimentary facies model for the Yinggehai-Qiongdongnan Basin.

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Available abstract

We analyzed the sequence stratigraphy and biostratigraphy(based on the abundance of foraminifers and calcareous nannofossils)of 27 drill cores in the Yinggehai-Qiongdongnan Basin.Twenty third-order sequences were recognized in Oligocene TB1.1 to Quaternary TB3.9 strata.Based on the abundance and diversity of microfossils,assemblage characteristics,and estimated water depths,paleoenvironments were reconstructed for reservoir sandstones in S29-28 under thefault No.1zone.The study establishes a sequence stratigraphic framework and a sedimentary facies model for the Yinggehai-Qiongdongnan Basin.

Key concepts: Geology, Paleontology, Biostratigraphy, Facies, Sequence stratigraphy, Stratigraphy, Structural basin, Sequence (biology)

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THE APPLICATION OF MICROPALEONTOLOGY IN HIGH-RESOLUTION SEQUENCE STRATIGRAPHY AND PALEOENVIRONMENTAL RECONSTRUCTION:A CASE STUDY OF THE YINGGEHAI-QIONGDONGNAN BASIN — Research Paper | ScholarLens