n-Alkan-2-one distributions in a northeastern China peat core spanning the last 16 kyr | |
Zheng,YH (Zheng, Yanhong)[1,2]; Zhou,WJ (Zhou, Weijian)[2,3]; Liu,XM (Liu, Xiaomin)[2]; Zhang,CLL (Zhang, Chuanlun L.)[4] | |
2011-01-30 | |
发表期刊 | ORGANIC GEOCHEMISTRY |
卷号 | 42期号:1页码:25-30 |
文章类型 | 期刊论文 |
摘要 | Most research on long chain methyl ketones has focused on their origins and distributions. Their application in paleoclimate studies is less common than that of other n-alkyl lipids. The goal of this research was to explore this potential by studying n-alkan-2-ones from the Hani peat sequence in northeastern China. They were identified using gas chromatography-mass spectrometry (GC-MS) and showed a distribution ranging from C(19) to C(31) with a strong odd/even predominance. This type of distribution is considered to derive from Sphagum and microbial oxidation of n-alkanes. Comparison with climate sensitive indicators and macrofossil analysis shows that microbial oxidation of n-alkanes derived from higher plants was enhanced during the warm early Holocene period. This led us to develop three n-alkan-2-one proxies - C(27)/Sigma C(23-31) (C(27)/HMW-KET), carbon preference index (CPI(H)-KET) and average chain length (ACL((27-31))-KET) - as possible indicators of paleoclimate in the peat-forming environment. These proxies, in combination with C(27) n-alkane delta D values and peat cellulose delta(18)O records, might allow examination of paleo-ecosystem behavior during climatic evolution in northeastern China over the past 16,000 yr. |
DOI | 10.1016/j.orggeochem.2010.10.003 |
收录类别 | SCI |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10279 |
专题 | 加速器质谱中心 |
通讯作者 | Zhou,WJ (Zhou, Weijian)[2,3] |
作者单位 | 1.State Key Laboratory of Continental Dynamics, Department of Geology, Northwest University, Xi’an 710069, China; 2.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China; 3.Xi’an AMS Center, Xi’an 710061, China; 4.Department of Marine Sciences, University of Georgia, Athens, GA 30602, USA |
推荐引用方式 GB/T 7714 | Zheng,YH ,Zhou,WJ ,Liu,XM ,et al. n-Alkan-2-one distributions in a northeastern China peat core spanning the last 16 kyr[J]. ORGANIC GEOCHEMISTRY,2011,42(1):25-30. |
APA | Zheng,YH ,Zhou,WJ ,Liu,XM ,&Zhang,CLL .(2011).n-Alkan-2-one distributions in a northeastern China peat core spanning the last 16 kyr.ORGANIC GEOCHEMISTRY,42(1),25-30. |
MLA | Zheng,YH ,et al."n-Alkan-2-one distributions in a northeastern China peat core spanning the last 16 kyr".ORGANIC GEOCHEMISTRY 42.1(2011):25-30. |
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文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
n-Alkan-2-one distri(485KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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