天津地区河流沉积物中中等分子量正构烷烃的分布特征

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天津地区河流沉积物中中等分子量正构烷烃的分布特征

文章导航 > 沉积学报 > 2007 > 25(4): 632-639

张枝焕. 天津地区河流沉积物中中等分子量正构烷烃的分布特征[J]. 沉积学报, 2007, 25(4): 632-639.

引用本文:

张枝焕. 天津地区河流沉积物中中等分子量正构烷烃的分布特征[J]. 沉积学报, 2007, 25(4): 632-639.

ZHANG Zhihuan. Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China[J]. Acta Sedimentologica Sinica, 2007, 25(4): 632-639.

Citation:

ZHANG Zhihuan. Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China[J]. Acta Sedimentologica Sinica, 2007, 25(4): 632-639.

张枝焕. 天津地区河流沉积物中中等分子量正构烷烃的分布特征[J]. 沉积学报, 2007, 25(4): 632-639.

引用本文:

张枝焕. 天津地区河流沉积物中中等分子量正构烷烃的分布特征[J]. 沉积学报, 2007, 25(4): 632-639.

ZHANG Zhihuan. Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China[J]. Acta Sedimentologica Sinica, 2007, 25(4): 632-639.

Citation:

ZHANG Zhihuan. Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China[J]. Acta Sedimentologica Sinica, 2007, 25(4): 632-639.

天津地区河流沉积物中中等分子量正构烷烃的分布特征

张枝焕

中国石油大学资源与信息学院石油天然气成藏机理教育部重点实验室北京 102200

通讯作者:
张枝焕

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文章访问数: 2009
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Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China

ZHANG Zhihuan

Key Laboratory for Hydrocarbon Accumulation, Ministry of Education, P. R. China; Faculty of Natural Resources & Information Technology, University of Petroleum, Beijing 102200

More Information

Corresponding author: ZHANG Zhihuan

摘要: 分析了天津地区几条具不同环境功能特征的河流沉积物中正构烷烃的组成，重点介绍了中低分子量正构烷烃的分布特征，并通过与表层土壤、大气降尘及TSP中正构烷烃的分布特征的对比，分析了中等分子量正构烷烃的成因。分析表明，天津地区主要河流沉积物和大气降尘中正构烷烃普遍具有正十七烷（nC17）明显优势的特征，nC17单体烃同位素值也相对偏低，与来源于化石燃料的正构烷烃化合物存在明显的差别。在土壤和TSP中不存在这一现象，表明正十七烷化合物来源水体中的低等水生生物体，推测主要来源于藻类生物。由于这类化合物含量明显高于其他化合物，具有环境地球化学意义。
- 天津 /
- 河流 /
- 沉积物 /
- 正构烷烃 /
- 分布特征 /
- 成因
Abstract: The composition and distribution of normal alkane compound in sediments from some rivers with different environmental condition in Tianjin city, northern China, have been investigated. The composition and distribution of middlemolecular weight normal alkane in sediments in different rivers was emphasized in this paper. The origins of middlemolecular weight normal alkane in sediments have been analyzed based on the comparison of normal paraffin hydrocarbon composition among sediment, topsoil, dust fall and TSP. The result shows that the relative content of nC17  or nC19 has obvious predominance compared with other normal paraffin hydrocarbon compound in sediments from different rivers and dust fall. The stable carbon isotope value of nC17  is lower, which is different from the value of normal alkane in fossil fuel (such as oil and coal). The composition predominance of nC17 in topsoil and TSP is not occurrence. It is suggested that the nC17 or nC19 in these samples are derived from aquatic organism, such as algae, in water and surface sediments.
- Tianjin /
- river /
- sediment /
- normal alkane /
- distributional characteristies /
- origin

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计量

文章访问数: 2009
HTML全文浏览量: 17
PDF下载量: 665
被引次数: 0

天津地区河流沉积物中中等分子量正构烷烃的分布特征

张枝焕

中国石油大学资源与信息学院石油天然气成藏机理教育部重点实验室北京 102200

通讯作者: 张枝焕

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2007-08-10

关键词:

摘要: 分析了天津地区几条具不同环境功能特征的河流沉积物中正构烷烃的组成，重点介绍了中低分子量正构烷烃的分布特征，并通过与表层土壤、大气降尘及TSP中正构烷烃的分布特征的对比，分析了中等分子量正构烷烃的成因。分析表明，天津地区主要河流沉积物和大气降尘中正构烷烃普遍具有正十七烷（nC17）明显优势的特征，nC17单体烃同位素值也相对偏低，与来源于化石燃料的正构烷烃化合物存在明显的差别。在土壤和TSP中不存在这一现象，表明正十七烷化合物来源水体中的低等水生生物体，推测主要来源于藻类生物。由于这类化合物含量明显高于其他化合物，具有环境地球化学意义。

English Abstract

张枝焕. 天津地区河流沉积物中中等分子量正构烷烃的分布特征[J]. 沉积学报, 2007, 25(4): 632-639.

引用本文:

张枝焕. 天津地区河流沉积物中中等分子量正构烷烃的分布特征[J]. 沉积学报, 2007, 25(4): 632-639.

ZHANG Zhihuan. Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China[J]. Acta Sedimentologica Sinica, 2007, 25(4): 632-639.

Citation:

ZHANG Zhihuan. Composition and Distribution of MiddleMolecular Weight Normal Alkane Compounds in Sediments from Some Rivers in Tianjin, Northern China[J]. Acta Sedimentologica Sinica, 2007, 25(4): 632-639.

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