High-Resolution Sequence Research in Fan-delta Sedimentary System

ZHAO Jun-qing; JI You-liang; XIN Bin; ZHANG Shan-wen; LIU Bao-ming

This paper discusses high-resolution sequence in fan-delta sedmentary system, exemplifying T76 fan-delta of the fourth upper member of Shhejie formation in Shengbei fault's downthrown side of Dongying depression.Research shows that the high resolution sequence stratigraphic units are divided into parasequence set,parasequence,bed set and bed in fan-delta. The authors particularly study types and comparative methods of parasequence and bed set. The type of bed set is divided into Fu,Cu and Cu-Fu types, and parasequence into Fu-Fu,Cu-Fu and Cu-Cu types. We have summrized two comparative methods of parasequence and bed set which are facies change paralleling to source area and incisement perpendicular to the source area.

1. Laboratory of Marginal Sea Geology, Guangzhou Institute of Geochemistry & South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510640;

2. Institute of Earth and Ocean Science, Tongji University, Shanghai 200092;

3. Shengli Oil field Limited Corporation, SINOPEC, Dongying Shandong 257015

Received Date: 2003-02-10

Rev Recd Date: 2003-06-26

Publish Date: 2004-06-10

Key words:

fan-delta /
high-resolution sequence stratigraphy /
parasequence /
bed set /
comparative method /
the fourth up 2 per member of Shahejie Formation.

Abstract: This paper discusses high-resolution sequence in fan-delta sedmentary system, exemplifying T76 fan-delta of the fourth upper member of Shhejie formation in Shengbei fault's downthrown side of Dongying depression.Research shows that the high resolution sequence stratigraphic units are divided into parasequence set,parasequence,bed set and bed in fan-delta. The authors particularly study types and comparative methods of parasequence and bed set. The type of bed set is divided into Fu,Cu and Cu-Fu types, and parasequence into Fu-Fu,Cu-Fu and Cu-Cu types. We have summrized two comparative methods of parasequence and bed set which are facies change paralleling to source area and incisement perpendicular to the source area.

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Reference (15)

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High-Resolution Sequence Research in Fan-delta Sedimentary System

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