Cenozoic Tectono-stratigraphic sequences of the Shelf Rift Basin, East China Sea
Conference
·
· AAPG Bulletin (American Association of Petroleum Geologists); (United States)
OSTI ID:6750198
- Mobil Oil Corp., Dallas, TX (United States)
- Chevron Overseas Petroleum Inc., San Ramon, CA (United States)
The Tertiary section of the Jiaojiang, Qiantang, and Fushi depressions of the East China Sea Basin consists of at least eight rift-related depositional sequences identified seismically by regional onlap and truncation surfaces. Delineation of these sequences is based on interpretation of multifold seismic reflection profile data calibrated with several wells, including the Wenzhou 6-1-1 well. Upper Cretaceous( ) to Eocene synrift graben-restricted strata consist of two tectonically enhanced unconformity bounded sequences as evidenced by large angular discontinuities between each sequence. Discontinuous inclined-reflection seismic facies adjacent to the hanging wall correlate with nonmarine conglomeratic sandstone and are interpreted as possible alluvial fan facies. High-amplitude parallel reflections within the graben axes correlate with coaly siltstone strata and are interpreted as coastal plain and possibly lacustrine facies with source rock potential. Clinoform seismic facies prograding from the northwest footwall correlate with nonmarine to marginal marine conglomerate, sandstone, and siltstone, and are interpreted as possible delta or fan-delta facies with reservoir potential.
- OSTI ID:
- 6750198
- Report Number(s):
- CONF-940803--
- Conference Information:
- Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 78:7
- Country of Publication:
- United States
- Language:
- English
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