中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Meso-Cenozoic tectonothermal evolution of Ordos basin, central China: Insights from newly acquired vitrinite reflectance data and a revision of existing paleothermal indicator data

文献类型:期刊论文

作者Yuan, Yusong; Hua, Shengbiao; Wang, Hongjun; Sun, Fenjing
刊名JOURNAL OF GEODYNAMICS
出版日期2007-08-01
卷号44期号:1-2页码:33-46
关键词Ordos basin thermal history paleo-geothermal gradient tectonics hydrothermal activity
ISSN号0264-3707
DOI10.1016/j.jog.2006.12.002
文献子类Article
英文摘要Thermal history reconstruction using paleogeothermal indicators, including vitrinite reflectance (Ro) and apatite fission track (AFT) dating in the Ordos basin indicates that the lower subsection, consisting of the Paleozoic to Middle Triassic sediments, reached its maximum paleotemperatures at the end of the Middle Triassic (T-2) and experienced a paleogeothermal gradient of 42-63 degrees C/km with a mean of 49 +/- 9 degrees C/km, while the upper subsection from the Late Triassic to Middle Jurassic, experienced its maximum paleotemperatures at the beginning of Late Jurassic (J(3)) and a paleogeothermal gradient of 25-39 degrees C/km with a mean of 31 +/- 6 degrees C/km. Therefore, at least two heating events are recorded in the Ordos basin since the Mesozoic: the first and most intensive in Middle Triassic as recorded by the lower subsection, the other is a moderate Jurassic thermal event as recorded by the upper subsection. These heating events were followed by a Cenozoic rapid cooling starting at about 21 Ma. In the regional geodynamic context. the Triassic thermal event might be ascribed to hydrothermal activity related to the Triassic collision between the North China Block (NCB) and the South China Block (SCB); the Jurassic thermal event to the Pacific subduction and the Cenozoic rapid cooling event to the Indo-Asian collision, respectively. (c) 2007 Elsevier Ltd. All rights reserved.
WOS关键词NORTH CHINA ; K-AR ; LITHOSPHERIC MANTLE ; MYR AGO ; UPLIFT ; GEOCHRONOLOGY ; BENEATH ; MODELS ; TIBET ; ROCKS
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000248630300003
出版者PERGAMON-ELSEVIER SCIENCE LTD
源URL[http://ir.iggcas.ac.cn/handle/132A11/67648]  
专题中国科学院地质与地球物理研究所
通讯作者Yuan, Yusong
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Res Inst Petr Explorat, Beijing 100083, Peoples R China
3.CNPC, Res Inst Petr Explorat & Dev, Langfang Branch, Langfang 065007, Peoples R China
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Yuan, Yusong,Hua, Shengbiao,Wang, Hongjun,et al. Meso-Cenozoic tectonothermal evolution of Ordos basin, central China: Insights from newly acquired vitrinite reflectance data and a revision of existing paleothermal indicator data[J]. JOURNAL OF GEODYNAMICS,2007,44(1-2):33-46.
APA Yuan, Yusong,Hua, Shengbiao,Wang, Hongjun,&Sun, Fenjing.(2007).Meso-Cenozoic tectonothermal evolution of Ordos basin, central China: Insights from newly acquired vitrinite reflectance data and a revision of existing paleothermal indicator data.JOURNAL OF GEODYNAMICS,44(1-2),33-46.
MLA Yuan, Yusong,et al."Meso-Cenozoic tectonothermal evolution of Ordos basin, central China: Insights from newly acquired vitrinite reflectance data and a revision of existing paleothermal indicator data".JOURNAL OF GEODYNAMICS 44.1-2(2007):33-46.

入库方式: OAI收割

来源:地质与地球物理研究所

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