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Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records
Zhao, JT; Li, TG; Li, J; Hu, BQ; tgli@ms.qdio.ac.cn
2012
发表期刊CHINESE SCIENCE BULLETIN
ISSN1001-6538
卷号57期号:30页码:3917-3922
摘要Based on 17 AMS(14)C age data, we reconstructed high-resolution records of sea surface primary productivity (PP) in the southern Okinawa Trough (MD05-2908) over the last 6.8 ka BP using the calcareous nannofossil carbon isotope and the relative percentage contents of Florisphaera profunda indexes. The underlying mechanism controlling the sea surface PP was then discussed. The sea surface PP, indicated by the coccolith delta C-13 and %Fp conversional equations, decreased with some fluctuations since 6.8 ka BP. This decrease may be connected to the decreased terrigenous input resulting from the reduced East Asian Summer Monsoon (EASM) precipitation. Both the periods of 4-2 ka BP (PME) and 6.8-4.8 ka BP were characterized by relatively higher PP. The former was mainly controlled by the weakening of the Kuroshio Current, whereas the latter mainly resulted from the greater terrigenous input associated with the stronger EASM.
部门归属[Zhao JingTao; Li TieGang] Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China; [Zhao JingTao; Li Jun; Hu BangQi] Qingdao Inst Marine Geol, Key Lab Marine Hydrocarbon Resource & Geol, Minist Land & Resources, Qingdao 266071, Peoples R China; [Zhao JingTao; Hu BangQi] Chinese Acad Sci, Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China
关键词Middle Holocene The souThern Okinawa Trough Primary Productivity Calcareous Nannofossil
学科领域Multidisciplinary Sciences
语种英语
资助项目海洋地质
WOS记录号WOS:000309350000015
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被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/10307
专题中科院边缘海地质重点实验室
通讯作者tgli@ms.qdio.ac.cn
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GB/T 7714
Zhao, JT,Li, TG,Li, J,et al. Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records[J]. CHINESE SCIENCE BULLETIN,2012,57(30):3917-3922.
APA Zhao, JT,Li, TG,Li, J,Hu, BQ,&tgli@ms.qdio.ac.cn.(2012).Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records.CHINESE SCIENCE BULLETIN,57(30),3917-3922.
MLA Zhao, JT,et al."Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records".CHINESE SCIENCE BULLETIN 57.30(2012):3917-3922.
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