Origins of N-2 in the Dongtai Depression of the Subei Basin
文献类型：期刊论文
| 作者 | Zhang, Liuping; Zhang, Ying; Wang, Aiguo |
| 刊名 | ENERGY EXPLORATION & EXPLOITATION
 |
| 出版日期 | 2010 |
| 卷号 | 28期号:5页码:377-395 |
| 关键词 | Natural gas Nitrogen Subei Basin Atmospheric Mantle |
| ISSN号 | 0144-5987 |
| 文献子类 | Article |
| 英文摘要 | Identification of N-2 origins can help to reduce exploration risks and to improve the understanding of gas generation and accumulation. N-2 from the mantle and organic matter in basins cannot be unraveled by using delta(15) N ratios alone, due to overlapping delta(15) N signatures. In this paper, we comprehensively studied N-2, Ar, delta(15) N, N-2/He-3, He-3/He-4, delta(13) C and their relationships of natural gases in the Dongtai Depression of the Subei Basin. Nitrogen contents of the gases in this depression range from 0.2 to 85.9%. Some samples have the air N-2/Ar ratio but others are excess relative to this ratio. delta N-15 data of all the samples except one constitute two populations in the histogram. All these features reflect at least two origins of N-2. One of these populations has delta N-15 values around 0 parts per thousand with N-2/He-3 ratios of 1.0x10(7) to 9.5x10(9), whereas the other population has negative delta N-15 values from -7.3 to -2.2 %o with N-2/He-3 of 1.1x10(7) to 9.4x10(9). It was obtained that the nitrogen of the former population is mainly atmospheric in origin. For the latter population, a considerable amount of nitrogen from organic matter in sedimentary rocks was identified, which coexist with the nitrogen from the air and mantle. In the Dongtai Depression of the Subei Basin, therefore, atmospheric, organic and mantle origins provided remarkable contributions to the natural gases. |
| WOS关键词 | NATURAL-GAS ACCUMULATIONS ; NITROGEN ISOTOPIC COMPOSITION ; SEDIMENTARY ORGANIC-MATTER ; MOLECULAR NITROGEN ; NOBLE-GASES ; MANTLE ; CARBON ; CHINA ; METAMORPHISM ; HYDROCARBONS |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000285023400004 |
| 出版者 | MULTI-SCIENCE PUBL CO LTD |
| 资助机构 | China National Scientific Foundation(40373029) ; China National Scientific Foundation(40373029) ; China National Major Science (973) Project(2004CB720503) ; China National Major Science (973) Project(2004CB720503) ; China National Scientific Foundation(40373029) ; China National Scientific Foundation(40373029) ; China National Major Science (973) Project(2004CB720503) ; China National Major Science (973) Project(2004CB720503) ; China National Scientific Foundation(40373029) ; China National Scientific Foundation(40373029) ; China National Major Science (973) Project(2004CB720503) ; China National Major Science (973) Project(2004CB720503) ; China National Scientific Foundation(40373029) ; China National Scientific Foundation(40373029) ; China National Major Science (973) Project(2004CB720503) ; China National Major Science (973) Project(2004CB720503) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/72616]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Zhang, Liuping |
| 作者单位 | Chinese Acad Sci, Key Lab Petr Resource, Inst Geol & Geophys, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Liuping,Zhang, Ying,Wang, Aiguo. Origins of N-2 in the Dongtai Depression of the Subei Basin[J]. ENERGY EXPLORATION & EXPLOITATION,2010,28(5):377-395. |
| APA | Zhang, Liuping,Zhang, Ying,&Wang, Aiguo.(2010).Origins of N-2 in the Dongtai Depression of the Subei Basin.ENERGY EXPLORATION & EXPLOITATION,28(5),377-395. |
| MLA | Zhang, Liuping,et al."Origins of N-2 in the Dongtai Depression of the Subei Basin".ENERGY EXPLORATION & EXPLOITATION 28.5(2010):377-395. |
入库方式： OAI收割
来源：地质与地球物理研究所
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