Extreme weathering/erosion during the Miocene Climatic Optimum: Evidence from sediment record in the South China Sea
文献类型：期刊论文
| 作者 | Wan, Shiming1,2; Kurschner, Wolfram M.3; Clift, Peter D.4; Li, Anchun1; Li, Tiegang1 |
| 刊名 | GEOPHYSICAL RESEARCH LETTERS
 |
| 出版日期 | 2009-10-06 |
| 卷号 | 36 |
| ISSN号 | 0094-8276 |
| DOI | 10.1029/2009GL040279 |
| 文献子类 | Article |
| 英文摘要 | Investigating the interplay between continental weathering and erosion, climate, and atmospheric CO(2) concentrations is significant in understanding the mechanisms that force the Cenozoic global cooling and predicting the future climatic and environmental response to increasing temperature and CO(2) levels. The Miocene represents an ideal test case as it encompasses two distinct extreme climate periods, the Miocene Climatic Optimum (MCO) with the warmest time since 35 Ma in Earth's history and the transition to the Late Cenozoic icehouse mode with the establishment of the east Antarctic ice sheet. However the precise role of continental weathering during this period of major climate change is poorly understood. Here we show changes in the rates of Miocene continental chemical weathering and physical erosion, which we tracked using the chemical index of alteration ( CIA) and mass accumulation rate ( MAR) respectively from Ocean Drilling Program (ODP) Site 1146 and 1148 in the South China Sea. We found significantly increased CIA values and terrigenous MARs during the MCO (ca. 17-15 Ma) compared to earlier and later periods suggests extreme continental weathering and erosion at that time. Similar high rates were revealed in the early-middle Miocene of Asia, the European Alps, and offshore Angola. This suggests that rapid sedimentation during the MCO was a global erosion event triggered by climate rather than regional tectonic activity. The close coherence of our records with high temperature, strong precipitation, increased burial of organic carbon and elevated atmospheric CO(2) concentration during the MCO argues for long-term, close coupling between continental silicate weathering, erosion, climate and atmospheric CO(2) during the Miocene. Citation: Wan, S., W. M. Kurschner, P. D. Clift, A. Li, and T. Li (2009), Extreme weathering/ erosion during the Miocene Climatic Optimum: Evidence from sediment record in the South China Sea, Geophys. Res. Lett., 36, L19706, doi: 10.1029/2009GL040279. |
| WOS关键词 | ATMOSPHERIC CARBON-DIOXIDE ; LATE CENOZOIC UPLIFT ; HIMALAYAN EROSION ; 20 MA ; EVOLUTION ; BURIAL ; RATES ; ASIA ; VEGETATION ; PALEOSOLS |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000270696200006 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China(40706025) ; National Natural Science Foundation of China(40706025) ; National Basic Research Program(2007CB411703) ; National Basic Research Program(2007CB411703) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Netherlands Research School of Sedimentary Geology(20090802) ; Netherlands Research School of Sedimentary Geology(20090802) ; National Natural Science Foundation of China(40706025) ; National Natural Science Foundation of China(40706025) ; National Basic Research Program(2007CB411703) ; National Basic Research Program(2007CB411703) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Netherlands Research School of Sedimentary Geology(20090802) ; Netherlands Research School of Sedimentary Geology(20090802) ; National Natural Science Foundation of China(40706025) ; National Natural Science Foundation of China(40706025) ; National Basic Research Program(2007CB411703) ; National Basic Research Program(2007CB411703) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Netherlands Research School of Sedimentary Geology(20090802) ; Netherlands Research School of Sedimentary Geology(20090802) ; National Natural Science Foundation of China(40706025) ; National Natural Science Foundation of China(40706025) ; National Basic Research Program(2007CB411703) ; National Basic Research Program(2007CB411703) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; Knowledge Innovation Program of CAS(KZCX2-YW-229) ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Netherlands Research School of Sedimentary Geology(20090802) ; Netherlands Research School of Sedimentary Geology(20090802) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/71951]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Wan, Shiming |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 3.Univ Utrecht, Dept Palaeoecol, Inst Environm Biol, NL-3584 CD Utrecht, Netherlands 4.Univ Aberdeen, Sch Geosci, Kings Coll, Aberdeen AB24 3UE, Scotland |
| 推荐引用方式 GB/T 7714 | Wan, Shiming,Kurschner, Wolfram M.,Clift, Peter D.,et al. Extreme weathering/erosion during the Miocene Climatic Optimum: Evidence from sediment record in the South China Sea[J]. GEOPHYSICAL RESEARCH LETTERS,2009,36. |
| APA | Wan, Shiming,Kurschner, Wolfram M.,Clift, Peter D.,Li, Anchun,&Li, Tiegang.(2009).Extreme weathering/erosion during the Miocene Climatic Optimum: Evidence from sediment record in the South China Sea.GEOPHYSICAL RESEARCH LETTERS,36. |
| MLA | Wan, Shiming,et al."Extreme weathering/erosion during the Miocene Climatic Optimum: Evidence from sediment record in the South China Sea".GEOPHYSICAL RESEARCH LETTERS 36(2009). |
入库方式： OAI收割
来源：地质与地球物理研究所
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