Late Miocene episodic lakes in the arid Tarim Basin, western China | |
Liu, WG (Liu, Weiguo)[ 1,2 ]; Liu, ZH (Liu, Zhonghui)[ 3 ]; An, ZS (An, Zhisheng)[ 1,2 ]; Sun, JM (Sun, Jimin)[ 4 ]; Chang, H (Chang, Hong)[ 1 ]; Wang, N (Wang, Ning)[ 1 ]; Dong, JB (Dong, Jibao)[ 1 ]; Wang, HY (Wang, Huanye)[ 1 ] | |
2014-11-18 | |
发表期刊 | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
卷号 | 111期号:46页码:16292-16296 |
文章类型 | 期刊论文 |
摘要 | The Tibetan Plateau uplift and Cenozoic global cooling are thought to induce enhanced aridification in the Asian interior. Although the onset of Asian desertification is proposed to have started in the earliest Miocene, prevailing desert environment in the Tarim Basin, currently providing much of the Asian eolian dust sources, is only a geologically recent phenomenon. Here we report episodic occurrences of lacustrine environments during the Late Miocene and investigate how the episodic lakes vanished in the basin. Our oxygen isotopic (delta O-18) record demonstrates that before the prevailing desert environment, episodic changes frequently alternating between lacustrine and fluvial-eolian environments can be linked to orbital variations. Wetter lacustrine phases generally corresponded to periods of high eccentricity and possibly high obliquity, and vice versa, suggesting a temperature control on the regional moisture level on orbital timescales. Boron isotopic (delta B-11) and delta O-18 records, together with other geochemical indicators, consistently show that the episodic lakes finally dried up at similar to 4.9 million years ago (Ma), permanently and irreversibly. Although the episodic occurrences of lakes appear to be linked to orbitally induced global climatic changes, the plateau (Tibetan, Pamir, and Tianshan) uplift was primarily responsible for the final vanishing of the episodic lakes in the Tarim Basin, occurring at a relatively warm, stable climate period. |
关键词 | Tarim Basin Late Miocene Aridification Tectonic Uplift Milankovitch |
DOI | 10.1073/pnas.1410890111 |
收录类别 | SCI |
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/361006/9751 |
专题 | 加速器质谱中心 |
通讯作者 | Liu, WG (Liu, Weiguo)[ 1,2 ] |
作者单位 | 1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China; 2.School of HumanSettlement and Civil Engineering, Xi’an Jiaotong University, Xi’an 710049, China; 3.Department of Earth Sciences, The University of Hong Kong, Hong Kong; 4.Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China |
推荐引用方式 GB/T 7714 | Liu, WG ,Liu, ZH ,An, ZS ,et al. Late Miocene episodic lakes in the arid Tarim Basin, western China[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2014,111(46):16292-16296. |
APA | Liu, WG .,Liu, ZH .,An, ZS .,Sun, JM .,Chang, H .,...&Wang, HY .(2014).Late Miocene episodic lakes in the arid Tarim Basin, western China.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,111(46),16292-16296. |
MLA | Liu, WG ,et al."Late Miocene episodic lakes in the arid Tarim Basin, western China".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 111.46(2014):16292-16296. |
条目包含的文件 | ||||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Late Miocene episodi(2542KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | 请求全文 |
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。
修改评论