DISTRIBUTION OF BENTHIC FORAMINIFERA IN SURFACE SEDIMENTS IN THE JUNCTION OF BOHAI SEA AND YELLOW SEA AND ENVIRONMENTAL CONSTRAINTS

LI Rihui; SUN Rongtao; XU Zhaokai; WANG Zhongbo

doi:10.3724/SP.J.1140.2014.03093

2014 Vol. 34, No. 3

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Article navigation > Marine Geology & Quaternary Geology > 2014 > 34(3): 93-103

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LI Rihui, SUN Rongtao, XU Zhaokai, WANG Zhongbo. DISTRIBUTION OF BENTHIC FORAMINIFERA IN SURFACE SEDIMENTS IN THE JUNCTION OF BOHAI SEA AND YELLOW SEA AND ENVIRONMENTAL CONSTRAINTS[J]. Marine Geology & Quaternary Geology, 2014, 34(3): 93-103. doi: 10.3724/SP.J.1140.2014.03093

Citation:

LI Rihui, SUN Rongtao, XU Zhaokai, WANG Zhongbo. DISTRIBUTION OF BENTHIC FORAMINIFERA IN SURFACE SEDIMENTS IN THE JUNCTION OF BOHAI SEA AND YELLOW SEA AND ENVIRONMENTAL CONSTRAINTS[J]. Marine Geology & Quaternary Geology, 2014, 34(3): 93-103. doi: 10.3724/SP.J.1140.2014.03093

DISTRIBUTION OF BENTHIC FORAMINIFERA IN SURFACE SEDIMENTS IN THE JUNCTION OF BOHAI SEA AND YELLOW SEA AND ENVIRONMENTAL CONSTRAINTS

1. Key Laboratory of Marine Hydrocarbon Resources and Environmental Geology, Ministry of Land and Resources, Qingdao 266071, China;
2. Qingdao Institute of Marine Geology, Qingdao 266071, China;
3. School of Resources and Environment Engineering, Shandong University of Technology, Zibo 255049, China;
4. Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences, Qingdao 266071, China

Received Date: 26 January 2014

Revised Date: 07 March 2014

Abstract

Abstract

144 surficial samples acquired from the northwestern Yellow Sea and the eastern Bohai Sea in 2008 and 2009 were selected to study the distribution pattern of benthic foraminifera and its relationships with modern marine environment. The benthic foraminiferal fauna are mainly composed of the species with high tolerances to low temperature and low salinity. Moreover, 78 species/genera with relatively higher abundance were chosen to carry out a Q-mode factor analysis, and 5 varimax factors corresponding to 5 foraminiferal assemblages were obtained. Correlations between the assemblages and environmental parameters suggest that:1. Protelphidium turberculatum (d'Orbigny) assemblage be constrained by the water temperature and the grain size of sediment; 2. Buccella frigida (Cushman)-Buccella tunicata (Ho,Hu et Wang)-Elphidium advenum (Cushman) assemblage be constrained by the cold water masses; 3.Cribrononion subincertum (Asano)-Cribrononion porisuturalis (Zheng) -Elphidium advenum (Cushman) assemblage be constrained by water depth and salinity; 4. Eggerella advena (Cushman)-Proteonina atlantica (Cushman)-Haplophragmoides canariensis (d'Orbigny) assemblage be constrained by the grain size of sediment; 5. Elphidium advenum (Cushman)-Ammonia becarii (Linné) -Ammonia compressiuscula (Brady) assemblage be constrained by temperature, salinity and grain size of sediment. In general, water depth shows no distinct influence on the distribution pattern of foraminifera. However, the topography of the sea floor has great influences on the distribution of benthic foraminifera.
- benthic foraminifera /
- marine environment /
- Yellow Sea /
- Bohai Sea /

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References

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