Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data
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Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data
Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data
海洋湖沼学报(英文)2002年20卷第3期 页码:270-276
Affiliations:
1. Institute of Oceanology Chinese Academy of Sciences
2. Institute of Biogeochemistry and Marine Chemistry
Author bio:
Funds:
Financial support for this research was provided by the Ministry of Science & Technology project (G200046704) and the Fund of the Director of the Chinese Academy of Sciences (20010302).
Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data[J]. 海洋湖沼学报(英文), 2002,20(3):270-276.
Shi-guo, W., Wong, H.K. Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data., Chin. J. Ocean. Limnol. 20, 270–276 (2002). https://doi.org/10.1007/BF02848858
Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data[J]. 海洋湖沼学报(英文), 2002,20(3):270-276. DOI: 10.1007/BF02848858.
Shi-guo, W., Wong, H.K. Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data., Chin. J. Ocean. Limnol. 20, 270–276 (2002). https://doi.org/10.1007/BF02848858DOI:
Late quaternary seismic sequences and sedimentation along the coast off Taishan, Guangdong, as revealed by high resolution seismic data
摘要
Abstract
Seismic stratigraphic analysis of 150 km of high-resolution seismic profiles (GEOPULSE and 3.5 kHz) obtained along the muddy coast off Taishan
Guangdong provided valuable information on the offshore Quaternary stratigraphy
tectonics
sedimentary evolution
and environmental and engineering geology of this area. The following late Quaternary stratigraphic sequences were mapped. (1) Pleistocene alluvial sitty sand and shallow marine clay; (2) coarse fluvial channel sand; (3) nearshore and bay clayey sediments. The incision of fluvial channels occurred in two stages: during the Late Pleistocene and at the beginning of the Holocene. The Pleistocene fluvial channels have been filled by coarse sand overlain by more than 10 m of late Pleistocene clay and 20–30 m of Holocene clay. The coastal area is dissected by two major fault systems: the first group strikes ENE-WSW and controls the evolution of the adjacent Quaternary basin
while the second one trends NNE-SSW. These fault systems must be taken into account in any coastal engineering considerations. In addition
both granitic and metamorphic basements were recognized.
关键词
Keywords
references
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