Carbon isotope fractionation during low temperature carbonization of foxtail and common millets
文献类型：期刊论文
| 作者 | Yang, Qing2,3; Li, Xiaoqiang1; Liu, Weiguo2; Zhou, Xinying1; Zhao, Keliang1; Sun, Nan1; lixiaoqiang@ivpp.ac.cn |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2011-08-01 |
| 卷号 | 42期号:7页码:713-719 |
| 关键词 | Fossil Charcoal Mediterranean Basin Plant Cellulose Atmospheric Co2 Discrimination C-4 Leaves C-13 Delta-c-13 Grasses |
| ISSN号 | 0146-6380 |
| 文献子类 | Article |
| 英文摘要 | Stable carbon isotopes of organic matter and fossilized plant remains can be used to effectively reconstruct local palaeoclimate changes, especially from plants using a single photosynthetic mode. The charred grains of foxtail and common millet are chemically stable in the environment and have been preserved widely and continuously throughout the Holocene in North China. The charred remains of these species are ideal materials for reconstructing the palaeoclimate based on delta(13)C of foxtail and common millets heated to temperatures up to around 250 degrees C. This study reports delta(13)C values of modern millets carbonized at different temperatures. The results indicate that there are no significant changes in delta(13)C of intact and charred samples of foxtail millet (<= 0.46 parts per thousand) and common millet (<= 0.49 parts per thousand) for temperatures below 300 degrees C. The delta(13)C of charred foxtail millet formed at 250 degrees C were 0.2 parts per thousand higher in delta(13)C than the source samples. In contrast, the delta(13)C of charred common millet formed at 250 degrees C were 0.2 parts per thousand lighter in delta(13)C than the source samples. The delta(13)C values of grains were determined in part by the carbon content (i.e., starches, lignins and lipids) and the variable thermal tolerances of these compounds to heating. However, the observed (13)C carbonization associated with fractionation of only 0.2 parts per thousand in grains is much less than the natural variation typically found in wood. We therefore suggest that delta(13)C measured in carbonized grains can serve as an effective indicator for paleoenvironmental and archaeological reconstructions. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved. |
| URL标识 | 查看原文 |
| WOS关键词 | FOSSIL CHARCOAL ; MEDITERRANEAN BASIN ; PLANT CELLULOSE ; ATMOSPHERIC CO2 ; DISCRIMINATION ; C-4 ; LEAVES ; C-13 ; DELTA-C-13 ; GRASSES |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000294359500002 |
| 公开日期 | 2013-11-27 |
| 源URL | [http://119.78.100.205/handle/311034/4400]  |
| 专题 | 古脊椎动物与古人类研究所_图书馆1 |
| 通讯作者 | lixiaoqiang@ivpp.ac.cn |
| 作者单位 | 1.Chinese Acad Sci, Lab Human Evolut, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Qing,Li, Xiaoqiang,Liu, Weiguo,et al. Carbon isotope fractionation during low temperature carbonization of foxtail and common millets[J]. ORGANIC GEOCHEMISTRY,2011,42(7):713-719. |
| APA | Yang, Qing.,Li, Xiaoqiang.,Liu, Weiguo.,Zhou, Xinying.,Zhao, Keliang.,...&lixiaoqiang@ivpp.ac.cn.(2011).Carbon isotope fractionation during low temperature carbonization of foxtail and common millets.ORGANIC GEOCHEMISTRY,42(7),713-719. |
| MLA | Yang, Qing,et al."Carbon isotope fractionation during low temperature carbonization of foxtail and common millets".ORGANIC GEOCHEMISTRY 42.7(2011):713-719. |
入库方式： OAI收割
来源：古脊椎动物与古人类研究所
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