The use of free radicals of organic matter to determine paleogeothermal gradient
文献类型：期刊论文
| 作者 | Qiu, NS; Wang, JY |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 1998 |
| 卷号 | 28期号:1-2页码:77-86 |
| 关键词 | free radical spin density electron spin resonance geothermal gradient kerogen Qiongdongnan basin Liaohe basin Tarim basin Chinese sedimentary basins |
| ISSN号 | 0146-6380 |
| 文献子类 | Article |
| 英文摘要 | Free radicals in 60 kerogen samples from 5 wells in the Qiongdongnan, Tarim and Liaohe basins in China were analyzed by Electron Spin Resonance (ESR) for use in geothermometry. Based on ESR data for 44 kerogen samples from the Tertiary Qiongdongnan basin, a regression curve was shown to fit free radical densities (N-g) with burial depth of samples for use in geothermal gradient estimation. Using this curve, the highest geothermal gradients experienced by Carboniferous-Permian strata (Well TMC1 in the Tarim basin) and Oligocene-Eocene strata (Well LR16 in the Liaohe Basin) were estimated. Concurrently, five samples from Liaohe Basin were examined by apatite fission track analysis to assess the reliability of the ESR-kerogen method for geothermal gradient determination. Results of ESR analyses match those of vitrinite reflectance and apatite fission track analysis, indicating that maximum geothermal gradients obtained from the ESR curve are reliable. This paper presents a useful ESR-kerogen method for estimating paleogeothermal gradients, which is especially useful where vitrinite and apatite are not present. (C) 1998 Elsevier Science Ltd. All rights reserved. |
| WOS关键词 | VITRINITE REFLECTANCE DATA ; SEDIMENTARY BASINS ; THERMAL HISTORY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000072422300008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/75060]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Qiu, NS |
| 作者单位 | 1.Univ Petr, Res Ctr Basin & Reservoir, Beijing 102200, Peoples R China 2.Acad Sinica, Inst Geol, Lab Geotherm, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, NS,Wang, JY. The use of free radicals of organic matter to determine paleogeothermal gradient[J]. ORGANIC GEOCHEMISTRY,1998,28(1-2):77-86. |
| APA | Qiu, NS,&Wang, JY.(1998).The use of free radicals of organic matter to determine paleogeothermal gradient.ORGANIC GEOCHEMISTRY,28(1-2),77-86. |
| MLA | Qiu, NS,et al."The use of free radicals of organic matter to determine paleogeothermal gradient".ORGANIC GEOCHEMISTRY 28.1-2(1998):77-86. |
入库方式： OAI收割
来源：地质与地球物理研究所
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