Seasonal/Interannual Variation and Controlling Factors for Oxygen and Carbon Isotopes of Ostracod Shells Collected From a Time-Series Sediment Trap in Lake Qinghai
文献类型：期刊论文
| 作者 | Jin, Zhangdong1,2; Zhang, Fei2,3; Li, Xiangzhong4; Wang, Jin2,3; Jin, Chenyu5 |
| 刊名 | FRONTIERS IN EARTH SCIENCE
 |
| 出版日期 | 2021-08-11 |
| 卷号 | 9页码:12 |
| 关键词 | ostracod shell abundance stable O-C isotopes seasonal variation controlling factor Lake Qinghai |
| DOI | 10.3389/feart.2021.727330 |
| 通讯作者 | Jin, Zhangdong(zhdjin@ieecas.cn) |
| 英文摘要 | 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. |
| WOS关键词 | TIBET PLATEAU ; GEOCHEMISTRY ; FRACTIONATION ; RECORD ; STRONTIUM ; HOLOCENE ; CALCITE ; CHINA |
| 资助项目 | National Natural Science Foundation of China[41773149] ; CAS Strategic Priority Research Program[XDB40020100] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000685120800001 |
| 出版者 | FRONTIERS MEDIA SA |
| 资助机构 | National Natural Science Foundation of China ; CAS Strategic Priority Research Program |
| 源URL | [http://ir.ieecas.cn/handle/361006/16930]  |
| 专题 | 地球环境研究所_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. |
入库方式： OAI收割
来源：地球环境研究所
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