Diets and environments of late Cenozoic mammals in the Qaidam Basin, Tibetan Plateau: Evidence from stable isotopes

2012 ◽  
Vol 333-334 ◽  
pp. 70-82 ◽  
Author(s):  
Chunfu Zhang ◽  
Yang Wang ◽  
Qiang Li ◽  
Xiaoming Wang ◽  
Tao Deng ◽  
...  
Keyword(s):  
Stable Isotopes ◽  
Tibetan Plateau ◽  
Qaidam Basin ◽  
Late Cenozoic ◽  
Cenozoic Mammals

scholarly journals Late Cenozoic continuous aridification in the western Qaidam Basin: evidence from sporopollen records

2013 ◽  
Vol 9 (2) ◽  
pp. 1485-1508 ◽  
Author(s):  
Y. F. Miao ◽  
X. M. Fang ◽  
F. L. Wu ◽  
M. T. Cai ◽  
C. H. Song ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Middle Miocene ◽  
Qaidam Basin ◽  
East Asian ◽  
The Tibetan Plateau ◽  
Late Cenozoic ◽  
Plateau Uplift ◽  
Western Qaidam Basin ◽  
Global Cooling ◽  
Tibetan Plateau Uplift

Abstract. Cenozoic climate changes in inner Asia provide a basis for understanding linkages between global cooling, the Tibetan Plateau uplift, and possibly the development of the East Asian monsoon. Based on the compiled palynological results from the western Qaidam Basin, this study reconstructed an 18 Ma record of changing vegetation and paleoclimates since the middle Miocene. Thermophilic taxa percentages were highest between 18 and 14 Ma and decreased after 14 Ma, corresponding closely with the Middle Miocene Climatic Optimum (MMCO) between 18 and 14 Ma and the following global climatic cooling. After 3.6 Ma, the thermophilic taxa percentages further decreased, showing the inevitable relations with the ice-sheets enlargement in the North Hemisphere. During the same period of time, the increase in xerophytic taxa percentages and decrease in conifers percentages imply aridification in both the basin and surrounding mountains since 18 Ma. These results indicate that global cooling mainly controlled the climate change from a relative warm-wet stage to a cold-dry stage during the late Cenozoic at the western Qaidam Basin, and that the Tibetan Plateau uplift also contributed in contrast to the East Asian summer monsoon.

Reduced chemical weathering intensity in the Qaidam Basin (NE Tibetan Plateau) during the Late Cenozoic

2019 ◽  
Vol 170 ◽  
pp. 155-165 ◽  
Author(s):  
Jing Bao ◽  
Chunhui Song ◽  
Yibo Yang ◽  
Xiaomin Fang ◽  
Qingquan Meng ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Chemical Weathering ◽  
Qaidam Basin ◽  
Late Cenozoic ◽  
Weathering Intensity ◽  
Ne Tibetan Plateau
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