放射性碳年代测定
碳纤维
沉积岩
碳循环
总有机碳
中国
地质学
环境科学
自然地理学
矿物学
地球化学
环境化学
考古
地理
古生物学
化学
材料科学
生态学
生态系统
复合数
复合材料
生物
出处
期刊:Radiocarbon
[Cambridge University Press]
日期:2022-12-23
卷期号:65 (1): 299-304
摘要
ABSTRACT A MIni CArbon DAting System (MICADAS) has been recently installed at the Ocean University of China (OUC) mainly for determining the radiocarbon ( 14 C) ages for marine sedimentary organic carbon. In this study, we compared the data from a series of CO 2 samples measured independently by the MICADAS at OUC and ETH Zurich to assess whether the data from the OUC MICADAS meet our requirement for carbon cycle research. The measured samples covered a range of 14 C ages from 1229 to 12,287 yr, and size from 5 to 162 µg C. The data from the two instruments showed a good linear relationship with only small 14 C age offsets, meeting our research demands such as carbon source apportionment. Lastly, we propose that for MICADAS clients, such a cross-lab comparison of the size- and age-dependency of MICADAS using age-known samples is important for 14 C data integration.
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