Planktonic Foraminifera in the surface sediments of the southern Okinawa Trough and its geological significance

Chen Ronghua; Jian Zhimin; Zheng Yulong

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Chen Ronghua, Jian Zhimin, Zheng Yulong. Planktonic Foraminifera in the surface sediments of the southern Okinawa Trough and its geological significance[J]. Haiyang Xuebao, 1999, 21(5): 78-86.

Citation:

Chen Ronghua, Jian Zhimin, Zheng Yulong. Planktonic Foraminifera in the surface sediments of the southern Okinawa Trough and its geological significance[J]. Haiyang Xuebao, 1999, 21(5): 78-86.

Chen Ronghua, Jian Zhimin, Zheng Yulong. Planktonic Foraminifera in the surface sediments of the southern Okinawa Trough and its geological significance[J]. Haiyang Xuebao, 1999, 21(5): 78-86.

Citation:

Chen Ronghua, Jian Zhimin, Zheng Yulong. Planktonic Foraminifera in the surface sediments of the southern Okinawa Trough and its geological significance[J]. Haiyang Xuebao, 1999, 21(5): 78-86.

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Planktonic Foraminifera in the surface sediments of the southern Okinawa Trough and its geological significance

1.
Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012
2.
Laboratory of Marine Geology, Tongji University, Shanghai 200092

Received Date: 1998-08-25
Rev Recd Date: 1999-02-12

Abstract

Abstract

Systematical identifying and quantitative counting of planktonic Foratninifera(>0.154 mm) have been carried out for 53 surface sediment samples in the southern Okinawa Trough,The distributional characteristics of each species and assemblage of planktonic Foraminifera are obtained using Q-mode factor analysis,N,dutertrei-P,oblzquiloculata assemblage is mainly distributed in the sea area near The Mainland and Taiwan,China,while G.glutznata-G,Tuber assemblage is distributed in the central part and the Ryūkyū-gunto side of the Okinawa Trough,Moreover,it is found that the distribution and variation of planktonic foraminiferal abundance,assemblage and fragmentation are mainly controlled by the environmental factors such as water depth,carbonate lysocline,thermocline and water masses.
- Planktonic Foraminifera,
- surface sediment,
- environmental factors,
- Okinawa Trough

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References(8)

References

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