Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records | |
Zhao JingTao1,2,3; Li TieGang1; Li Jun2; Hu BangQi2,3; Li, TG (reprint author), Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China. | |
2012-10-01 | |
发表期刊 | CHINESE SCIENCE BULLETIN |
ISSN | 1001-6538 |
卷号 | 57期号:30页码:3917-3922 |
文章类型 | Article |
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. |
关键词 | Middle Holocene The souThern Okinawa Trough Primary Productivity Calcareous Nannofossil |
学科领域 | Multidisciplinary Sciences |
DOI | 10.1007/s11434-012-5276-y |
URL | 查看原文 |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000309350000015 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qdio.ac.cn/handle/337002/12512 |
专题 | 海洋地质与环境重点实验室 |
通讯作者 | Li, TG (reprint author), Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China. |
作者单位 | 1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China 2.Qingdao Inst Marine Geol, Key Lab Marine Hydrocarbon Resource & Geol, Minist Land & Resources, Qingdao 266071, Peoples R China 3.Chinese Acad Sci, Key Lab Marginal Sea Geol, S China Sea Inst Oceanol, Guangzhou 510301, Guangdong, Peoples R China |
第一作者单位 | 中国科学院海洋研究所 |
推荐引用方式 GB/T 7714 | Zhao JingTao,Li TieGang,Li Jun,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 JingTao,Li TieGang,Li Jun,Hu BangQi,&Li, TG .(2012).Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records.CHINESE SCIENCE BULLETIN,57(30),3917-3922. |
MLA | Zhao JingTao,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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