Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activityof the middle Altyn Tagh Fault, northern Tibetan Plateau | |
Chang, H (Chang, Hong)[1]; Ao, H (Ao, Hong)[1]; An, ZS (An, Zhisheng)[1]; Fang, XM (Fang, Xiaomin)[2]; Song, YG (Song, Yougui)[1]; Qiang, XK (Qiang, Xiaoke)[1] | |
2012-02-28 | |
发表期刊 | Journal of Asian Earth Sciences |
卷号 | 44页码:169-175 |
文章类型 | 期刊论文 |
摘要 | The left-lateral strike-slip Altyn Tagh Fault (ATF) forming the northern boundary of the Tibetan Plateau accommodates parts of the overall convergence between the colliding Indian and Eurasian plates. Precise dating of the ATF activity is essential for understanding possible mechanisms of Tibetan Plateau deformation and uplift. Here we report a magnetostratigraphic study of the Suerkuli Basin deposits recording depositional changes during the ATF activity. Field investigations reveal a remarkable and widespread change in depositional environment in the Suerkuli Basin, i.e. a transformation from low-energy lacustrine deposits (grayish-green mud-siltstone and brown mud-siltstone) into high-energy alluviul fan deposits (poorly sorted gray pebble and cobble conglomerates). Detailed magnetostratigraphy of the 390-m-thick Daban section, at the southeastern margin of the Suerkuli Basin (38 43.090N, 90 58.840E), shows that this change in depositional facies occurred at 3.2 Ma, accompanied by a remarkable increase in sediment accumulation rate. We attribute this depositional change to the Piocene tectonic activity of the middle ATF although the contribution of the Pliocene global climate deterioration cannot be excluded. |
关键词 | Magnetostratigraphy Altyn Tagh Fault Tectonic Uplift Suerkuli Basin Pliocene |
DOI | 10.1016/j.jseaes.2011.10.013 |
收录类别 | SCIE |
语种 | 英语 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/10087 |
专题 | 古环境研究室 |
通讯作者 | Chang, H (Chang, Hong)[1] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xian 710075, China; 2.Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China |
推荐引用方式 GB/T 7714 | Chang, H ,Ao, H ,An, ZS ,et al. Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activityof the middle Altyn Tagh Fault, northern Tibetan Plateau[J]. Journal of Asian Earth Sciences,2012,44:169-175. |
APA | Chang, H ,Ao, H ,An, ZS ,Fang, XM ,Song, YG ,&Qiang, XK .(2012).Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activityof the middle Altyn Tagh Fault, northern Tibetan Plateau.Journal of Asian Earth Sciences,44,169-175. |
MLA | Chang, H ,et al."Magnetostratigraphy of the Suerkuli Basin indicates Pliocene (3.2 Ma) activityof the middle Altyn Tagh Fault, northern Tibetan Plateau".Journal of Asian Earth Sciences 44(2012):169-175. |
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