Thermal evolution and maturation of lower Paleozoic source rocks in the Tarim Basin, northwest China
文献类型：期刊论文
| 作者 | Qiu, Nansheng1; Chang, Jian; Zuo, Yinhui; Wang, Jiyang2; Li, Huili3 |
| 刊名 | AAPG BULLETIN
 |
| 出版日期 | 2012-05-01 |
| 卷号 | 96期号:5页码:789-821 |
| ISSN号 | 0149-1423 |
| DOI | 10.1306/09071111029 |
| 文献子类 | Article |
| 英文摘要 | The Tarim Basin is one of the richest basins in oil and gas resources in China. The Cambrian and Middle Upper Ordovician strata are the most important source rocks. Previous early Paleozoic thermal histories have led to varied hypotheses on the evolution of the lower Paleozoic source rocks, causing a significant impact on petroleum exploration in the basin. A new Paleozoic thermal history of the Tarim Basin was reconstructed in this article using the integrated thermal indicators of apatite and zircon (uranium-thorium)/helium ages, apatite fission tracks, and equivalent vitrinite reflectance data. The modeled results indicate that different parts of the basin experienced widely differing early Paleozoic thermal gradient evolution. The eastern and central regions of the basin experienced a decreasing thermal gradient evolution from 37 to 39 degrees C/km during the Cambrian and Ordovician to 35 to 36 degrees C/km in the Silurian, whereas the northwestern region of the basin had an increasing early Paleozoic thermal gradient evolution from 28 to 32 degrees C/km in the Cambrian to 30 to 34 degrees C/km in the Ordovician and Silurian. The Lower Cambrian thermal gradient resulted from the higher thermal conductivity of the 800- to 1000-m (2625- to 3280-ft) thickness of gypsum and salt in the Cambrian strata. The basin experienced an intracratonic phase during the late Paleozoic and a foreland basin phase during the Mesozoic and Cenozoic, with the thermal gradient decreasing to the present-day value of 20 to 25 degrees C/km. The sensitivity of thermal modeling by the best-fit method is less than +/- 5% in our study, and the differences of the early Paleozoic thermal gradient evolution in different regions of the basin may result in differential maturation of lower Paleozoic source rocks. The maturity histories of the source rocks, modeled based on the new thermal histories, indicate that the lower Paleozoic source rocks in most areas of the basin matured rapidly and reached the late mature to dry-gas stage during the Paleozoic but experienced slower maturation during the Mesozoic and Cenozoic. These new data on the Paleozoic thermal history and lower Paleozoic source rock maturity histories of the Tarim Basin provide new insights to guide oil and gas exploration of the basin. |
| WOS关键词 | APATITE FISSION-TRACK ; ZIRCON (U-TH)/HE THERMOCHRONOMETRY ; HELIUM DIFFUSION KINETICS ; SOUTHERN CANADIAN SHIELD ; RADIATION-DAMAGE ; TECTONIC EVOLUTION ; HE DIFFUSION ; OTWAY BASIN ; THRUST BELT ; HISTORY |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000303642900002 |
| 出版者 | AMER ASSOC PETROLEUM GEOLOGIST |
| 资助机构 | National Natural Science Foundation of China(41072103) ; National Natural Science Foundation of China(41072103) ; Ministry of Education of China(308005) ; Ministry of Education of China(308005) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; National Natural Science Foundation of China(41072103) ; National Natural Science Foundation of China(41072103) ; Ministry of Education of China(308005) ; Ministry of Education of China(308005) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; National Natural Science Foundation of China(41072103) ; National Natural Science Foundation of China(41072103) ; Ministry of Education of China(308005) ; Ministry of Education of China(308005) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; National Natural Science Foundation of China(41072103) ; National Natural Science Foundation of China(41072103) ; Ministry of Education of China(308005) ; Ministry of Education of China(308005) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) ; State Key Laboratory of Petroleum Resource and Prospecting(PRRIC2008-01) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84436]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Qiu, Nansheng |
| 作者单位 | 1.China Univ Petr, Res Ctr Basin & Reservoir, State Key Lab Petr Resource & Prospecting, Beijing 102249, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.China Petr & Chem Corp SINOPEC, NW Oil Co, Inst Petr Explorat & Dev, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qiu, Nansheng,Chang, Jian,Zuo, Yinhui,et al. Thermal evolution and maturation of lower Paleozoic source rocks in the Tarim Basin, northwest China[J]. AAPG BULLETIN,2012,96(5):789-821. |
| APA | Qiu, Nansheng,Chang, Jian,Zuo, Yinhui,Wang, Jiyang,&Li, Huili.(2012).Thermal evolution and maturation of lower Paleozoic source rocks in the Tarim Basin, northwest China.AAPG BULLETIN,96(5),789-821. |
| MLA | Qiu, Nansheng,et al."Thermal evolution and maturation of lower Paleozoic source rocks in the Tarim Basin, northwest China".AAPG BULLETIN 96.5(2012):789-821. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。