Response of eolian quartz flux and grain size in the Parece Vela Basin sediment to the mid-Pleistocene transition

doi:10.1016/j.jseaes.2022.105332

IOCAS-IR > 海洋地质与环境重点实验室

	Response of eolian quartz flux and grain size in the Parece Vela Basin sediment to the mid-Pleistocene transition
	Yan, Yu 1,3; Jiang, Fuqing 1,2,3,4; Zeng, Zhigang 1,2,3,4; Zhang, Zhaohui 5; Zheng, Hao1,3
	2022-09-15
发表期刊	JOURNAL OF ASIAN EARTH SCIENCES
ISSN	1367-9120
卷号	236 页码:9
通讯作者	Jiang, Fuqing(fqjiang@qdio.ac.cn) ; Zeng, Zhigang(zgzeng@qdio.ac.cn)
摘要	The most significant climate changes in the Quaternary occurred in the mid-Pleistocene transition (MPT). However, as the main component of eolian dust, it remains unknown how the fluxes and components of quartz responded to the MPT. We recovered a sediment core from the Parece Vela Basin (PVB), which dated back to 2.1 Ma, and quantitatively separated quartz from the sediments in order to track source area and transport mechanism. The grain size compositions, morphological characteristics, oxygen isotope compositions, and crystallinity indices of quartz showed that quartz minerals in the sediments were composed of fine-grained endmembers (EM1) with a mode grain size at 3.2 mu m, and coarse-grained endmembers (EM2) with a mode grain size at 9.5 mu m. The EM1 quartz mainly came from the Mongolian Gobi and Taklimakan Desert, and the EM2 quartz was predominantly derived from volcanic island arc. By fitting the grain size composition with the Weibull function, we were able to quantitatively separated EM1 and EM2 quartz fractions, and calculated the contents and mass accumulation rates (MARs) of eolian quartz. The mode grain sizes of eolian quartz increased at 1.2 Ma, but fluctuated during the mid-Pleistocene. The MARs of the eolian quartz have increased significantly since the midPleistocene, most likely due to enhanced aridity in the Asia interior. Our study demonstrates that eolian quartz in the northwest Pacific can be used to trace the long-term paleoclimate change in the Asia continent.
关键词	Mid -Pleistocene transition Source Quartz Parece Vela Basin
DOI	10.1016/j.jseaes.2022.105332
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[42076049] ; National Natural Science Foundation of China[41776065] ; National Natural Science Foundation of China[91958213] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2020KG15] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB42000000]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000861855000002
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/180709
专题	海洋地质与环境重点实验室
通讯作者	Jiang, Fuqing; Zeng, Zhigang
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Geol & Environm, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Qingdao 266061, Peoples R China 5.Zhejiang Univ, Ocean Coll, Inst Marine Chem & Environm, 1 Zheda Rd, Zhoushan 316021, Peoples R China
第一作者单位	中国科学院海洋研究所
通讯作者单位	中国科学院海洋研究所; 中国科学院海洋大科学研究中心
推荐引用方式 GB/T 7714	Yan, Yu,Jiang, Fuqing,Zeng, Zhigang,et al. Response of eolian quartz flux and grain size in the Parece Vela Basin sediment to the mid-Pleistocene transition[J]. JOURNAL OF ASIAN EARTH SCIENCES,2022,236:9.
APA	Yan, Yu,Jiang, Fuqing,Zeng, Zhigang,Zhang, Zhaohui,&Zheng, Hao.(2022).Response of eolian quartz flux and grain size in the Parece Vela Basin sediment to the mid-Pleistocene transition.JOURNAL OF ASIAN EARTH SCIENCES,236,9.
MLA	Yan, Yu,et al."Response of eolian quartz flux and grain size in the Parece Vela Basin sediment to the mid-Pleistocene transition".JOURNAL OF ASIAN EARTH SCIENCES 236(2022):9.