Postorogenic rigid behavior of the eastern Songpan-Ganze terrane: Insights from low-temperature thermochronology and implications for intracontinental deformation in central Asia
文献类型：期刊论文
| 作者 | Tian, Yuntao1; Kohn, Barry P.1; Hu, Shengbiao2; Gleadow, Andrew J. W.1 |
| 刊名 | GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 15期号:2页码:453-474 |
| 关键词 | postorogenic evolution low-temperature thermochronology Tibetan Plateau Songpan-Ganze terrane Lhasa-Qiangtang collision |
| ISSN号 | 1525-2027 |
| DOI | 10.1002/2013GC004951 |
| 文献子类 | Article |
| 英文摘要 | The Songpan-Ganze terrane (SGT), formed by Early Mesozoic closure of the Paleo-Tethys Ocean, occupies a large area of the central-eastern Tibetan Plateau. Late Mesozoic and Cenozoic strike-slip deformation has been identified in the surrounding terranes and faults (e.g., western Qinling, Altyn Tagh, and Kunlun faults); however, the coeval evolution of the SGT has not been well explored. We report apatite fission track and apatite and zircon (U-Th)/He data from a >7 km deep borehole and outcrop samples covering an area of >150 x 150 km in the eastern SGT. Thermal history modeling suggests a distinct phase of Late Jurassic-Early Cretaceous (approximate to 150-100 Ma) cooling, followed by a prolonged stage of slow cooling, for all samples despite of their differences in depositional age (Mid-Late Triassic time) and locality within a large area. The ubiquitous Late Jurassic-Early Cretaceous cooling implies little differential deformation in the eastern SGT and is best explained by regional rock uplift resulting from the transpressional strain field created by the contemporaneous Lhasa-Qiangtang collision to the south. Projecting the contemporaneous deformation surrounding the SGT onto an Early Cretaceous paleogeographic terrane reconstruction results in a new tectonic model. The model relates the Lhasa-Qiangtang collision to tens to hundreds of kilometers of shearing along the Altyn Tagh and Kunlun faults, which transferred strain into central Asia (e.g., Qinling-Dabie orogen). Results of this study suggest a rigid behavior for the eastern SGT and highlight the important role of crustal strength discontinuities in accommodating and transferring crustal deformation. |
| WOS关键词 | NORTHEASTERN TIBETAN PLATEAU ; ALTYN-TAGH FAULT ; PALEO-TETHYS OCEAN ; WESTERN CHINA ; FISSION-TRACK ; LONGMEN SHAN ; TECTONIC IMPLICATIONS ; NW CHINA ; GEOCHRONOLOGICAL CONSTRAINTS ; (U-TH)/HE THERMOCHRONOMETRY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000335905600010 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 资助机构 | National Natural Science Foundation of China (NSFC)(41072186) ; National Natural Science Foundation of China (NSFC)(41072186) ; IPRS scholarship at the University of Melbourne ; IPRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; National Natural Science Foundation of China (NSFC)(41072186) ; National Natural Science Foundation of China (NSFC)(41072186) ; IPRS scholarship at the University of Melbourne ; IPRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; National Natural Science Foundation of China (NSFC)(41072186) ; National Natural Science Foundation of China (NSFC)(41072186) ; IPRS scholarship at the University of Melbourne ; IPRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; National Natural Science Foundation of China (NSFC)(41072186) ; National Natural Science Foundation of China (NSFC)(41072186) ; IPRS scholarship at the University of Melbourne ; IPRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne ; MIRS scholarship at the University of Melbourne |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/85673]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Tian, Yuntao |
| 作者单位 | 1.Univ Melbourne, Sch Earth Sci, Melbourne, Vic 3010, Australia 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tian, Yuntao,Kohn, Barry P.,Hu, Shengbiao,et al. Postorogenic rigid behavior of the eastern Songpan-Ganze terrane: Insights from low-temperature thermochronology and implications for intracontinental deformation in central Asia[J]. GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,2014,15(2):453-474. |
| APA | Tian, Yuntao,Kohn, Barry P.,Hu, Shengbiao,&Gleadow, Andrew J. W..(2014).Postorogenic rigid behavior of the eastern Songpan-Ganze terrane: Insights from low-temperature thermochronology and implications for intracontinental deformation in central Asia.GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS,15(2),453-474. |
| MLA | Tian, Yuntao,et al."Postorogenic rigid behavior of the eastern Songpan-Ganze terrane: Insights from low-temperature thermochronology and implications for intracontinental deformation in central Asia".GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS 15.2(2014):453-474. |
入库方式： OAI收割
来源：地质与地球物理研究所
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