Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai

doi:10.3389/feart.2021.727330

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	Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai
	Jin, Zhangdong 1,2; Zhang, Fei 2,3; Li, Xiangzhong 4; Wang, Jin 2,3; Jin, Chenyu 5
通讯作者	Jin, Zhangdong(zhdjin@ieecas.cn)
	2021-08-11
发表期刊	FRONTIERS IN EARTH SCIENCE
卷号	9 页码:12
摘要	Because the shell substance of an ostracod is derived entirely from the water body where it lives, its chemical compositions are sensitive to aquatic environment and thus have been used to reconstruct past climatic and environmental changes. However, there is controversy about the controlling factors for the different compositions of ostracod shells from various water bodies. In this study, seasonal and interannual variations in daily flux and stable oxygen-carbon isotopic compositions (delta O-18, delta C-13) for two species of ostracod shells (Limnocythere inopinata and Eucypris mareotica) and their controlling factors are discussed, based on ostracod shell samples collected from a time-series sediment trap from July 2010 through September 2012 and from surface sediments in Lake Qinghai, which were correlated with the state-of-the-art sensing data of the lake water. The results show that the daily flux of L. inopinata shells is an order of magnitude higher than that of E. mareotica. The delta O-18 and delta C-13 of both L. inopinata and E. mareotica shells have distinctly interannual and seasonal variations, with species differences. Interannual differences of delta O-18 for the two species of ostracod shells directly reflect the systematic differences of the summer water temperature between 2010 and 2012. We propose that seasonal variations of both delta O-18 and delta C-13 for the two species are affected by the precipitation of authigenic carbonates in microenvironment induced by high water temperature in summers, highlighting their environmental implications in Lake Qinghai.
关键词	ostracod shell abundance stable O-C isotopes seasonal variation controlling factor Lake Qinghai
DOI	10.3389/feart.2021.727330
关键词[WOS]	TIBET PLATEAU ; GEOCHEMISTRY ; FRACTIONATION ; RECORD ; STRONTIUM ; HOLOCENE ; CALCITE ; CHINA
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41773149] ; CAS Strategic Priority Research Program[XDB40020100]
WOS研究方向	Geology
项目资助者	National Natural Science Foundation of China ; CAS Strategic Priority Research Program
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000685120800001
出版者	FRONTIERS MEDIA SA
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.ieecas.cn/handle/361006/16931
专题	加速器质谱中心
通讯作者	Jin, Zhangdong
作者单位	1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, SKLLQG, Xian, Peoples R China 3.Changan Univ, Sch Land Engn, Xian, Peoples R China 4.Yunnan Univ, Yunnan Key Lab Earth Syst Sci, Kunming, Yunnan, Peoples R China 5.Shanxi Agr Univ, Coll Grassland Sci, Taigu, Peoples R China
推荐引用方式 GB/T 7714	Jin, Zhangdong,Zhang, Fei,Li, Xiangzhong,et al. Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai[J]. FRONTIERS IN EARTH SCIENCE,2021,9:12.
APA	Jin, Zhangdong,Zhang, Fei,Li, Xiangzhong,Wang, Jin,&Jin, Chenyu.(2021).Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai.FRONTIERS IN EARTH SCIENCE,9,12.
MLA	Jin, Zhangdong,et al."Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai".FRONTIERS IN EARTH SCIENCE 9(2021):12.