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2013, 32(2) 359-365 DOI:
ISSN: 1004-5589 CN: 22-1111/P |
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Seismic-sedimentary facies analysis and evolution of sedimentary environment in Shenhu Area��South China Sea |
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MA Jun-Ming-1, XUE Lin-Fu-1, FU Shao-Ying-2, ZHAO Cong-Li-3, LI Wen-Bo-1 |
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1�� College of Earth Sciences��Jilin University��Changchun 130061��China; 2�� Guangzhou Marine Geological Survey��Guangzhou 510760��China; 3�� Department of Common Required Courses��Tianjin University of Traditional Chinese Medicine��Tianjin 300193��China |
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Abstract��
Based on the partition of second sequence��the sequence can be divided into seven third-order sequences by applying high resolution sequence stratigraphy in Shenhu area of northern slope of South China Sea�� where gas hydrate is more valued�� Under the control of third-order sequence��five seismic facies including sheet�� wedge shape��lenticular��mound��filling��and sixteen seismic subfacies can be distinguished in the Shenhu waters�� Sedimentary facies development is given priority to the turbidity current and mud flow�� The overall features of sedimentary environment evolution of Shenhu area is sea level falling��with development of the strata of bathyal-deep facies to shallow facies from sequence C to A�� The bathyal-deep facies are from up continental slope down�� |
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Keywords��
South China Sea
Shenhu Area
sequence stratigraphy
seismic facies
sedimentary facies
sedimentary environment evolution
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