中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 海洋研究所
  3. 中国科学院海洋研究所
  4. 海洋地质与环境重点实验室
Heavy mineral record from the east China sea inner shelf: Implications for provenance and climate changes over the past 1500 years

文献类型：期刊论文

作者Zhang, Kaidi1,3; Li, Anchun1,2,3; Liu, Xiting2,4; Chen, Min-Te5,6,7; Lu, Jian1,2,3; Zhang, Jin1,3; Wang, Hongli1
刊名CONTINENTAL SHELF RESEARCH
出版日期2021-09-01
卷号226页码:12
关键词Mud wedge Detrital mineral Sediment provenance Climatic change The East China Sea
ISSN号0278-4343
DOI10.1016/j.csr.2021.104488
通讯作者Li, Anchun(acli@qdio.ac.cn)
英文摘要The heavy mineral composition and sensitive grain size changes from core SS4 retrieved from the mud wedge on the East China Sea inner shelf have been studied for better understanding provenance variations in the sediment and climate changes during the last similar to 1500 yr. High dolomite content and occurrence of ubiquitous polysynthetic mica indicate that the sediments in core SS4 were mainly derived from the Yangtze River, while the relatively high epidote content represent the contribution of small local rivers from Zhejiang and Fujian provinces. The substantial decrease in the epidote/hornblende ratio since similar to 730 yr BP manifests a decline in the relative contribution of sediment from the small local rivers to the core. We propose that the changes in drought/flood conditions in response to the East Asian winter monsoon (EAWM) and human activities might have been mainly responsible for changes in sedimentary characteristics. During 1400-730 yr BP, the core sediments were characterized by relatively finer sensitive grain size and high epidote/hornblende ratio, due to a possibly weaker EAWM (i.e., less Yangtze River-derived sediment transported by the southward coast current). This time interval coincides with the Sui-Tang Warm Period (1400-1130 yr BP) in China and the Medieval Warm Period (1000-730 yr BP) on a broader regional scale. The prolonged warm periods were, however, interrupted by three short cold phases at 1350-1280 yr BP, 1130-1000 yr BP and 870-750 yr BP, characterized by coarse sensitive grain size and decreased epidote/hornblende ratio. Between 360 and 150 yr BP, the sensitive grain size significantly coarsened, which corresponded to the Little Ice Age. Our new findings suggest that sedimentation processes of mud wedge formation are responsive to natural environmental change and human activity.
资助项目National Natural Science Foundation of China[41806056] ; National Natural Science Foundation of China[41976053] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2018KG08]
WOS研究方向Oceanography
语种英语
WOS记录号WOS:000687195200005
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.qdio.ac.cn/handle/337002/176221]  
专题海洋研究所_海洋地质与环境重点实验室
通讯作者Li, Anchun
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
3.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China
4.Ocean Univ China, Coll Marine Geosci, Key Lab Submarine Geosci & Prospecting Technol, Qingdao 266100, Peoples R China
5.Natl Taiwan Ocean Univ, Inst Earth Sci, Keelung 202, Taiwan
6.Natl Taiwan Ocean Univ, Ctr Excellence Oceans, Keelung 202, Taiwan
7.Natl Taiwan Ocean Univ, Ctr Excellence Ocean Engn, Keelung 202, Taiwan
推荐引用方式
GB/T 7714		 Zhang, Kaidi,Li, Anchun,Liu, Xiting,et al. Heavy mineral record from the east China sea inner shelf: Implications for provenance and climate changes over the past 1500 years[J]. CONTINENTAL SHELF RESEARCH,2021,226:12.
APA Zhang, Kaidi.,Li, Anchun.,Liu, Xiting.,Chen, Min-Te.,Lu, Jian.,...&Wang, Hongli.(2021).Heavy mineral record from the east China sea inner shelf: Implications for provenance and climate changes over the past 1500 years.CONTINENTAL SHELF RESEARCH,226,12.
MLA Zhang, Kaidi,et al."Heavy mineral record from the east China sea inner shelf: Implications for provenance and climate changes over the past 1500 years".CONTINENTAL SHELF RESEARCH 226(2021):12.

入库方式： OAI收割

来源：海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。