DOI: 10.1016/j.palaeo.2015.01.001
论文题名: Late Miocene stepwise aridification in the Asian interior and the interplay between tectonics and climate
作者: Sun J. ; Gong Z. ; Tian Z. ; Jia Y. ; Windley B.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 421 起始页码: 48
结束页码: 59
语种: 英语
英文关键词: Aridification
; Central Asia
; Forcing mechanism
; Late Cenozoic
; Paleoclimate
英文摘要: The mid-latitudinal central Asian continent is characterized by large sand deserts and Gobi (stony desert). In this context, it is of interest to study the timing and forcing mechanisms of aridification in the region. Here we present multiple geochemical climatic proxies from late Cenozoic strata in the Tarim Basin of northwestern China, a region sensitive to climatic change. The results yield long-term climatic records covering a time interval of 13.3 to 2.5. Ma. We find that a general trend towards a dry climate was superimposed by two stepwise aridification events, the first lesser aridity phase occurred at ~. 7-5.3. Ma and the second extreme aridity episode was initiated at ~. 5.3. Ma. Based on the correlation between climatic change and regional tectonic events, we propose a mechanism to explain the climatic variations. The general long-term drying trend since the mid-Miocene was a response to global climatic cooling, while the stepwise aridification since the latest Miocene was controlled mainly by regional tectonic uplift. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69024
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, P.O. Box 9825, Beijing, China; CAS Center for Excellence in Tibetan Plateau Earth Sciences, China; Department of Geology, The University of Leicester, Leicester, United Kingdom
Recommended Citation:
Sun J.,Gong Z.,Tian Z.,et al. Late Miocene stepwise aridification in the Asian interior and the interplay between tectonics and climate[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,421