CHARACTRISTICS OF SESMIC SEQUENCES IN THE EAST CHINA SEA SHELF BASIN AND THEIR GEOLOGICAL ATTRIBUTES

WANG Wenjuan; LI Gang; YANG Changqing; YANG Chuansheng

doi:10.3724/SP.J.1140.2013.03117

2013 Vol. 33, No. 3

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Article navigation > Marine Geology & Quaternary Geology > 2013 > 33(3): 117-122

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WANG Wenjuan, LI Gang, YANG Changqing, YANG Chuansheng. CHARACTRISTICS OF SESMIC SEQUENCES IN THE EAST CHINA SEA SHELF BASIN AND THEIR GEOLOGICAL ATTRIBUTES[J]. Marine Geology & Quaternary Geology, 2013, 33(3): 117-122. doi: 10.3724/SP.J.1140.2013.03117

Citation:

WANG Wenjuan, LI Gang, YANG Changqing, YANG Chuansheng. CHARACTRISTICS OF SESMIC SEQUENCES IN THE EAST CHINA SEA SHELF BASIN AND THEIR GEOLOGICAL ATTRIBUTES[J]. Marine Geology & Quaternary Geology, 2013, 33(3): 117-122. doi: 10.3724/SP.J.1140.2013.03117

CHARACTRISTICS OF SESMIC SEQUENCES IN THE EAST CHINA SEA SHELF BASIN AND THEIR GEOLOGICAL ATTRIBUTES

1. Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, MLR, Qingdao 266071;
2. Qingdao Institute of Marine Geology, Qingdao 266071

Received Date: 12 July 2012

Revised Date: 25 November 2012

Abstract

Abstract

High resolution multi-channel seismic survey is a cost-efficient technique for geological exploration. We conducted high resolution multi-channel seismic survey with the SYNTRAK-480, and studied the stratigraphical sequences in the East China Sea Basin. Based on the characteristics of seismic reflection records retrieved from the multi-channel seismic data, 6 reflectors marked as T20,T30,T40,T50,T60 and Tg are recognized and 6 seismic sequences established by correlation. From the top to the bottom, they are Ⅰ(sea floor-T20), Ⅱ(T20-T50), Ⅲ(T50-T60), Ⅳ(T60-Tg) andⅤ(Tg-below), and the second sequence can be further divided to two subsequences, Ⅱ1 and Ⅱ2. Compared with the data from the adjacent sea and land areas, these seismic sequences are Q+N,E3+E2+ E1,K,J and Pre-Mesozoic respectively in age. The Mesozoic deposit is a favorable oil and gas exploration target in this area, especially in the Minjiang sag and Keelung sag.
- high resolution seismic exploration /
- seismic sequence /
- geological attributes /
- Mesozoic deposit /
- the East China Sea Shelf Basin

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References

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