Journal ArticleDOI
Evolution of Asian monsoons and phased uplift of the Himalaya–Tibetan plateau since Late Miocene times
TLDR
The results of a numerical climate-model experiment support the argument that the stages in evolution of Asian monsoons are linked to phases of Himalaya–Tibetan plateau uplift and to Northern Hemisphere glaciation.Abstract:
The climates of Asia are affected significantly by the extent and height of the Himalayan mountains and the Tibetan plateau1,2,3,4 Uplift of this region began about 50 Myr ago, and further significant increases in altitude of the Tibetan plateau are thought to have occurred about 10–8 Myr ago4,5, or more recently However, the climatic consequences of this uplift remain unclear Here we use records of aeolian sediments from China6,7 and marine sediments from the Indian8,9,10 and North Pacific oceans11 to identify three stages of evolution of Asian climates: first, enhanced aridity in the Asian interior and onset of the Indian and east Asian monsoons, about 9–8 Myr ago; next, continued intensification of the east Asian summer and winter monsoons, together with increased dust transport to the North Pacific Ocean11, about 36–26 Myr ago; and last, increased variability and possible weakening of the Indian and east Asian summer monsoons and continued strengthening of the east Asian winter monsoon since about 26 Myr ago The results of a numerical climate-model experiment, using idealized stepwise increases of mountain–plateau elevation, support the argument that the stages in evolution of Asian monsoons are linked to phases of Himalaya–Tibetan plateau uplift and to Northern Hemisphere glaciationread more
Citations
More filters
Journal ArticleDOI
Cenozoic Stratigraphy Deformation History in the Central and Eastern of Qaidam Basin by the Balance Section Restoration and its Implication
Dongliang Liu,Xiaomin Fang,Junping Gao,Yadong Wang,Weilin Zhang,Yunfa Miao,Yongqian Liu,Yuezhong Zhang +7 more
TL;DR: Based on the latest progress in high-resolution stratigraphy, this article applied a technique of balanced section to six pieces of northeast-southwest geologic seismic profiles in the central and eastern of the Qaidam Basin to reconstruct the crustal shortening deformation history during the Cenozoic collision.
Journal ArticleDOI
Late early Oligocene East Asian summer monsoon in the NE Tibetan Plateau: Evidence from a palynological record from the Lanzhou Basin, China
TL;DR: In this paper, an early Oligocene record from the Lanzhou Basin, northeast Tibetan Plateau, presents an opportunity to investigate early stage of the Asian monsoon patterns due to its special location, and the record provides insights into the global zonal climate and the development of the non-zonal monsoon system.
Journal ArticleDOI
Understanding historical and current patterns of species richness of babblers along a 5000-m subtropical elevational gradient
Yongjie Wu,Robert K. Colwell,Robert K. Colwell,Naijian Han,Ruiying Zhang,Wenjuan Wang,Qing Quan,Chunlan Zhang,Gang Song,Yanhua Qu,Fumin Lei +10 more
TL;DR: The reconstructed palaeopatterns of species richness suggest that babblers, as a clade, first occupied the Hengduan Mountains at low to mid elevations, although the method of ancestral state reconstruction cannot conclusively reject origins outside the current elevational distribution of the group.
Journal ArticleDOI
A high frequency of allopolyploid speciation in the gymnospermous genus Ephedra and its possible association with some biological and ecological features.
TL;DR: It is suggested that allotetraploidy is a dominant mode of speciation in Ephedra and the high percentage of polyploids in the genus could be related to some of its biological attributes such as vegetative propagation, a relatively high rate of unreduced gamete formation, and a small genome size relative to most other gymnosperms.
Journal ArticleDOI
Effect of Yunnan–Guizhou Topography at the Southeastern Tibetan Plateau on the Indian Monsoon
TL;DR: In this article, the effect of the YG topography on the Indian monsoon and its comparison with that of the Tibetan Plateau were evaluated using general circulation model experiments, and the results showed that the TP strengthened the monsoon precipitation, especially during the onset.
References
More filters
Journal ArticleDOI
Global vegetation change through the Miocene/Pliocene boundary
Thure E. Cerling,John Harris,Bruce J. MacFadden,Meave G. Leakey,Jay Quade,Véra Eisenmann,James R. Ehleringer +6 more
TL;DR: For example, this paper found that between 8 and 6 million years ago, there was a global increase in the biomass of plants using C4 photosynthesis as indicated by changes in the carbon isotope ratios of fossil tooth enamel in Asia, Africa, North America and South America.
Journal ArticleDOI
Mantle dynamics, uplift of the Tibetan Plateau, and the Indian Monsoon
TL;DR: For example, Hou et al. as mentioned in this paper show that a small increase in the mean elevation of the Tibetan Plateau of 1000 m or more in a few million years is required by abrupt tectonic and environmental changes in Asia and the Indian Ocean.
Journal ArticleDOI
Surface Deformation and Lower Crustal Flow in Eastern Tibet
Leigh H. Royden,B. Clark Burchfiel,Robert W. King,Erchie Wang,Zhiliang Chen,Feng Shen,Y. Liu +6 more
TL;DR: This model predicts east-west extension on the high plateau without convective removal of Tibetan lithosphere and without eastward movement of the crust east of the plateau.
Journal ArticleDOI
Correlation between climate events in the North Atlantic and China during the last glaciation
TL;DR: The authors examined grain-size data from Chinese loess and intercalated accretionary palaeosols of last-glacial age for evidence of similar climate signals remote from the North Atlantic region.
Journal ArticleDOI
Finite strain calculations of continental deformation .2. comparison with the india-asia collision zone
TL;DR: In this article, a thin viscous sheet model for deformation of continental lithosphere subjected to an indenting boundary condition yield distributions of crustal thickness, of stress and strain rate, and of latitudinal displacements that may be compared with observations in the India-Asia collision zone.