Late Pleistocene-Holocene seismic stratigraphy of Nha Trang shelf, central Vietnam.

Dung, B. V., Stattegger, Karl, Thanh, N. T., Van Phach, P., Dung, T. T. and Thong, B. X. (2014) Late Pleistocene-Holocene seismic stratigraphy of Nha Trang shelf, central Vietnam. Marine and Petroleum Geology, 58 . pp. 789-800. DOI 10.1016/j.marpetgeo.2014.05.017.

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Abstract

The late Pleistocene Holocene stratigraphic architecture on the steep and narrow shelf off Nha Trang, central Vietnam has been explored by high resolution seismic profiles integrated with sediment core data. Sequence stratigraphic results reveal five major seismic units and three bounding surfaces which are composed of two distinctive sequences. Those sequences are bounded by two regional unconformities (SB1, SB2) which have been formed in respond to different sea-level regimes. The revealed relict beach ridge deposits at water depth of about similar to 130 m below the present water depth indicate that the Last Glacial Lowstand (LGM) sea-level in this area was lower than in neighboring areas and it probably resulted from subsidence due to high sedimentation rate and/or neotectonic movements of the East Vietnam Fault System. The late Pleistocene high amplitude of sea-level change during a long fourthorder and superimposed by shorter fifth-order cycle is the principal factor in reorganizing the formation of the Nha Trang continental shelf sequence. Other local controlling factors as fluctuations in sediment supply, morphological variations of the LGM surface, subsidence rate and hydrodynamic conditions provided the distinctive features of the Nha Trang shelf sequence stratigraphic model in comparison with neighboring other areas. (C) 2014 Elsevier Ltd. All rights reserved.

Document Type: Article
Additional Information: Times Cited: 0 Dung, Bui Viet Stattegger, Karl Nguyen Trung Thanh Phung Van Phach Tran Tuan Dung Thong, Bui Xuan B
Keywords: Nha Trang, Seismic stratigraphy, Sea level, Sediment supply
Research affiliation: OceanRep > The Future Ocean - Cluster of Excellence > FO-R06
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1016/j.marpetgeo.2014.05.017
ISSN: 0264-8172
Projects: Future Ocean
Date Deposited: 30 Jan 2017 10:27
Last Modified: 23 Aug 2019 08:38
URI: http://oceanrep.geomar.de/id/eprint/35589

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