Middle to late Miocene surface water history in the northern South China Sea (SCS): Relationship to the East Asian Monsoon (EAM) evolution and variability

南海北部（SCS）中新世中晚期地表水历史：与东亚季风（EAM）演化和变化的关系

• 批准号: 28668931
• 负责人: Professor Dr. Stephan Steinke
• 金额: --
• 依托单位: State Key Laboratory of Marine Environmental Science
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2009-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/28668931?language=en
• 关键词: Middle; late; Miocene; surface; water

The proposed study intends to investigate the evolution and variability of the East Asian Monsoon (EAM) for the middle to late Miocene (-15 Ma to 6 Ma), a period of drastic reorganization of global climate. To this end, sediment samples of Ocean Drilling Program (OOP) Leg 184 (Site 1146, 19°27.40 N, 116 16.37 E; water depth of 2092 m; northern South China Sea, SCS) will be analysed for planktonic foraminiferal Mg/Ca ratios (temperature proxy) and stabile oxygen isotopes (proxy of temperature, salinity, and global ice-volume). This integrated approach is a promising method to investigate the thermal and Hydrographie history of the northern SCS surface waters in order to understand the evolution and variability of the EAM during the middle to late Miocene. The objectives of this study are (a) to test hypotheses about the middle to late Miocene intensification of the East Asian summer monsoon, (b) to provide more detailed marine evidence for the evolution and variability of the EAM, and (c) to document the response of the northern SCS surface waters to the Neogene global cooling.

拟议的研究旨在研究中新世中期至晚期的东亚季风（EAM）（-15 mA至6 MA）的演变和变异性，这是全球气候的急剧重组时期。 To this end, sediment samples of Ocean Drilling Program (OOP) Leg 184 (Site 1146, 19°27.40 N, 116 16.37 E; water depth of 2092 m; northern South China Sea, SCS) will be analyzed for planktonic foraminiferal Mg/Ca ratios (temperature proxy) and stabile oxygen isotopes (proxy of temperature, salinity, and global ice-volume).这种综合方法是研究North SCS地表水的热和水文历史的有前途的方法，以了解中新世中期至晚期EAM的演变和变异性。这项研究的目的是（a）测试有关东亚夏季中期中期至晚期强化的假设，（b）提供了更详细的海洋证据，证明了EAM的演变和变异性，以及（c）记录北部SCS SCS地表水对Neogene全球冷却的反应。