Geochemical characteristics and sediment provenance of Core SO-50 sediments in the Beibu Gulf

Zhang Aimei; Chen Min; Gan Huayang; Chen Qiuming; Lan Binbin; Fang Qi

doi:10.3969/j.issn.0253-4193.2018.05.009

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Article Navigation > Haiyang Xuebao > 2018 > 40(5): 107-117

Zhang Aimei, Chen Min, Gan Huayang, Chen Qiuming, Lan Binbin, Fang Qi. Geochemical characteristics and sediment provenance of Core SO-50 sediments in the Beibu Gulf[J]. Haiyang Xuebao, 2018, 40(5): 107-117. doi: 10.3969/j.issn.0253-4193.2018.05.009

Citation:

Zhang Aimei, Chen Min, Gan Huayang, Chen Qiuming, Lan Binbin, Fang Qi. Geochemical characteristics and sediment provenance of Core SO-50 sediments in the Beibu Gulf[J]. Haiyang Xuebao, 2018, 40(5): 107-117. doi: 10.3969/j.issn.0253-4193.2018.05.009

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Geochemical characteristics and sediment provenance of Core SO-50 sediments in the Beibu Gulf

doi: 10.3969/j.issn.0253-4193.2018.05.009

1.
The Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China
2.
Guangzhou Marine Geological Survey, Guangzhou 510760, China

Received Date: 2017-07-24
Rev Recd Date: 2017-10-09

Abstract

Abstract

The provenance of Core SO-50 sediments were discussed in this paper based on grain-size, Sr-Nd isotopes, major and trace elements and AMS¹⁴C dating. Results showed that Core SO-50 could be divided into two sedimentary units:(1) the upper unit(0-540 cm,0-3.0 ka BP), (2) the lower unit(540-571 cm,3.0-3.3 ka BP). Compared with the upper unit, the sand content increased and the content of major elements (excepting SiO₂) and REE decreased. In addition to the abnormal value, the trends of ⁸⁷Sr/⁸⁶Sr and ε_Nd were relatively stable. The results suggested that Core SO-50 sediments were mainly derived from the eastern Qiongzhou Strait, Taiwan islands and the surrounding coastal. In the lower unit were primarily a mixture of the eastern Qiongzhou Strait and Taiwan islands, and in the upper unit, in addition to the contribution of the eastern Qiongzhou Strait and Taiwan islands, the supply of the surrounding coastal was increased. Therefore, the contribution of Taiwan islands to the Beibu Gulf area should be paid more attention in the future studies.
- Beibu Gulf,
- core sediments,
- REE,
- Sr-Nd isotope,
- sediment provenance

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References(33)

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