STEPPED-COMBUSTION C-14 DATING IN LOESS-PALEOSOL SEDIMENT | |
Cheng, Peng1,2,3,4,5,6; Fu, Yunchong1,2,3,5,6 | |
刊名 | RADIOCARBON
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2020-10-01 | |
卷号 | 62期号:5页码:1209-1220 |
关键词 | C-14 loess-paleosol stepped-combustion delta C-13 |
ISSN号 | 0033-8222 |
DOI | 10.1017/RDC.2020.25 |
通讯作者 | Cheng, Peng(chp@ieecas.cn) |
英文摘要 | In this study, low temperature (room temperature, 400 degrees C LT) and high temperature (400-900 degrees C HT) of bulk organic carbon samples were dated from two loess and paleosol profiles. The results showed that radiocarbon (C-14) dates of the LT were younger than HT fractions, indicating effect of younger contamination from overlying layers. The delta C-13 variation of the HT fraction appears to respond much more sensitively to climate change, and C-14 ages of HT fraction can produce reasonable C-14 ages from a younger layer, but it is very difficult to obtain reliable C-14 ages from older layer as a result of uncomplete removal of young carbon. |
资助项目 | National Natural Science Foundation of China[NSFC41730108] ; Chinese Academy of Sciences[QYZDY-SSWDQC001] ; Chinese Academy of Sciences[ZDBS-SSW-DQC001] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105-02] ; State Key Laboratory of Loess and Quaternary Geology |
WOS关键词 | LATE QUATERNARY LOESS ; SOIL ORGANIC-MATTER ; RADIOCARBON AGE ; HIGH-RESOLUTION ; MONSOON RECORD ; ASIAN MONSOON ; AMS ; CARBON ; FRACTIONS ; PYROLYSIS |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | UNIV ARIZONA DEPT GEOSCIENCES |
WOS记录号 | WOS:000593989100008 |
资助机构 | National Natural Science Foundation of China ; Chinese Academy of Sciences ; National Research Program for Key Issues in Air Pollution Control ; State Key Laboratory of Loess and Quaternary Geology |
内容类型 | 期刊论文 |
源URL | [http://ir.ieecas.cn/handle/361006/15730] ![]() |
专题 | 地球环境研究所_加速器质谱中心 第四纪科学与全球变化卓越创新中心 |
通讯作者 | Cheng, Peng |
作者单位 | 1.Chinese Acad Sci, CAS Ctr Excellence Quaternary Sci & Global Change, Xian 710061, Peoples R China 2.Xian AMS Ctr IEECAS, Xian 710061, Peoples R China 3.Chinese Acad Sci IEECAS, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 4.Pilot Natl Lab Marine Sci & Technol Qingdao, Open Studio Ocean Continental Climate & Environm, Qingdao 266061, Peoples R China 5.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 6.Shaanxi Prov Key Lab Accelerator Mass Spectrometr, Xian 710061, Peoples R China |
推荐引用方式 GB/T 7714 | Cheng, Peng,Fu, Yunchong. STEPPED-COMBUSTION C-14 DATING IN LOESS-PALEOSOL SEDIMENT[J]. RADIOCARBON,2020,62(5):1209-1220. |
APA | Cheng, Peng,&Fu, Yunchong.(2020).STEPPED-COMBUSTION C-14 DATING IN LOESS-PALEOSOL SEDIMENT.RADIOCARBON,62(5),1209-1220. |
MLA | Cheng, Peng,et al."STEPPED-COMBUSTION C-14 DATING IN LOESS-PALEOSOL SEDIMENT".RADIOCARBON 62.5(2020):1209-1220. |
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