Hydrogen isotopic composition of n-alkanes in sediments from freshwater Fuxian Lake in subtropical, China: Implications for the ecological environment
作者: Yi DuanYingzhong WuJingli YaoJinxian HeXiaoli ZhangLi XuLanhua Ma
作者单位: 1Key Laboratory of Petroleum Resources, Gansu Province/Key Laboratory of Petroleum Resources Research, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences
2School of Earth Science & Resources, Chang’an University
3Shaanxi Center of Mineral Geological Survey
4Exploration and Development Institute of Changqing Oilfield Company
5China University of Mining and Technology
6Research Institute of Petroleum Exploration and Development
7Earthquake Research Institute of Lanzhou
刊名: GEOCHEMICAL JOURNAL, 2019, Vol.53 (3), pp.181-193
来源数据库: J-STAGE Journals
DOI: 10.2343/geochemj.2.0557
关键词: Fuxian LakeFreshwater lake sedimentN-alkaneHydrogen isotopeBiological source
原始语种摘要: The normal alkanes (n-alkanes) and their hydrogen isotopic (δD) values in sediments and aquatic and terrestrial plants from Fuxian Lake area of China were analyzed by gas chromatography-mass spectrometry (GC-MS) and GC-isotope ratio mass spectrometry (GC-IRMS), respectively. According to the δD values of the odd carbon-numbered n-alkanes, the sediment samples were divided into types I and II. The type I samples had a heavier hydrogen isotopic composition (–161 to –155‰ on average) compared to that of the type II samples (–208 to –173‰ on average). This isotopic difference is likely a result of their different biological sources. Similarity in the average n-alkane δD values in the sediments and plants indicated that C17 and C21 to C25 were mainly derived from aquatic submerged plants in...
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关键词翻译
关键词翻译
  • 构图 亚热带的
  • isotopic 同位素置换
  • China 中国
  • sedimentary 沉积的
  • alkanes 链烷烃
  • hydrogen 
  • values 价值观
  • controlling 管理
  • subtropical 亚热带的
  • composition 亚热带的
  • woody 木质的