Monitoring Cenozoic climate evolution of northeastern Tibet: stable isotope constraints from the western Qaidam Basin, China

2008 ◽  
Vol 98 (5) ◽  
pp. 1063-1075 ◽  
Author(s):  
Andrea B. Rieser ◽  
Ana-Voica Bojar ◽  
Franz Neubauer ◽  
Johann Genser ◽  
Yongjiang Liu ◽  
...  
Keyword(s):  
Stable Isotope ◽  
Qaidam Basin ◽  
Northeastern Tibet ◽  
Western Qaidam Basin ◽  
Climate Evolution

scholarly journals Intensified aridity in the Qaidam Basin during the Middle Miocene: constraints from ostracod, stable isotope, and weathering records

2017 ◽  
Vol 54 (3) ◽  
pp. 242-256 ◽  
Author(s):  
Bowen Song ◽  
Junliang Ji ◽  
Chaowen Wang ◽  
Yadong Xu ◽  
Kexin Zhang
Keyword(s):  
Stable Isotope ◽  
Tibetan Plateau ◽  
Chemical Weathering ◽  
Middle Miocene ◽  
Qaidam Basin ◽  
Global Climate ◽  
The Tibetan Plateau ◽  
Tectonic Events ◽  
Regional Tectonic ◽  
Climate Evolution

The thick and continuous Cenozoic successions in the Qaidam Basin provide an excellent paleoclimate archive. Here, we focus on the ostracod fauna, stable isotope records, and paleoweathering indices from a well-dated Cenozoic sedimentary section in the Qaidam Basin, to develop an understanding of Middle Miocene aridification in central Asia. Microfossil analyses suggest that the ostracod species diversity decreased suddenly after 13.3 Ma, and that the dominant ostracod genus shifted from Ilyocypris to Cyprideis. Stable isotope data from ostracod valves have displayed abrupt positive shifts of 3.75‰ in δ18O values and 5.28‰ in δ13C values since 13.3 Ma. The chemical index of weathering (CIW) and K2O/Na2O ratios decrease markedly after 13.3 Ma, reflecting a significant decrease in chemical weathering intensity. These combined and consistent observations suggest that the Qaidam Basin has experienced increased aridification since 13.3 Ma. The dating was obtained directly from previous magnetostratigraphic studies and can be correlated accurately with global climate evolution and regional tectonic events. A comparison of these results with global paleoclimatic records and previous geologic studies of the Tibetan Plateau revealed that global cooling, rather than uplift of the Tibetan Plateau, played a key role in the drying of the Qaidam Basin at approximately 13 Ma.

Evolution of the Miocene megalake in the western Qaidam Basin, northwestern China

2021 ◽  
pp. 110384
Author(s):  
Yu Liang ◽  
Bin Zhang ◽  
Yongshu Zhang ◽  
Yancheng Zhang ◽  
Jun Wang ◽  
...  
Keyword(s):  
Qaidam Basin ◽  
Northwestern China ◽  
Western Qaidam Basin

Clay minerals and isotopes of Pleistocene lacustrine sediments from the western Qaidam Basin, NE Tibetan Plateau

2018 ◽  
Vol 162 ◽  
pp. 382-390 ◽  
Author(s):  
Minghui Li ◽  
Shurui Sun ◽  
Xiaomin Fang ◽  
Chunhong Wang ◽  
Zhengrong Wang ◽  
...  
Keyword(s):  
Tibetan Plateau ◽  
Clay Minerals ◽  
Qaidam Basin ◽  
Lacustrine Sediments ◽  
Western Qaidam Basin ◽  
Ne Tibetan Plateau

Impact of Lithologic Heterogeneity on Brittleness of Cenozoic Tight Mixed Carbonate Reservoirs in Western Qaidam Basin

2022 ◽  
Author(s):  
Xiang Li ◽  
Kunyu Wu ◽  
Jiangong Wang ◽  
Xiucheng Tan ◽  
Yunfeng Zhang ◽  
...  
Keyword(s):  
Qaidam Basin ◽  
Carbonate Reservoirs ◽  
Western Qaidam Basin ◽  
Mixed Carbonate

scholarly journals Abundant non-hydrocarbons in crude oils from the western Qaidam Basin, northwest China

2004 ◽  
Vol 38 (5) ◽  
pp. 461-471 ◽  
Author(s):  
Yi Duan ◽  
Yaorong Qian ◽  
Chuanyuan Wang ◽  
Zhiping Wang ◽  
Xiaobao Zhang ◽  
...  
Keyword(s):  
Qaidam Basin ◽  
Northwest China ◽  
Crude Oils ◽  
Western Qaidam Basin

scholarly journals Application of teleseismic tomography to the study of shallow structure beneath Shizigou in the western Qaidam basin

2009 ◽  
Vol 22 (2) ◽  
pp. 189-195 ◽  
Author(s):  
Xiaoming Xu ◽  
Yinsheng Ma ◽  
Danian Shi ◽  
Xiaofeng Wang ◽  
Chengming Yin
Keyword(s):  
Qaidam Basin ◽  
Teleseismic Tomography ◽  
Western Qaidam Basin ◽  
Shallow Structure

scholarly journals Exploration risk evaluation using object-based modeling, an example from the Tertiary fractured play, western Qaidam Basin of China

2008 ◽  
Vol 5 (3) ◽  
pp. 195-202 ◽  
Author(s):  
Zhuoheng Chen ◽  
Suyun Hu ◽  
Zhijun Jin ◽  
Xiongqi Pang ◽  
Zhenxue Jiang ◽  
...  
Keyword(s):  
Risk Evaluation ◽  
Qaidam Basin ◽  
Object Based ◽  
Western Qaidam Basin ◽  
Exploration Risk

scholarly journals The western Qaidam Basin as a potential Martian environmental analogue: An overview

2017 ◽  
Vol 122 (5) ◽  
pp. 856-888 ◽  
Author(s):  
Angélica Anglés ◽  
Yiliang Li
Keyword(s):  
Qaidam Basin ◽  
Western Qaidam Basin

Paleogene and Early Neogene Lacustrine Reefs in the Western Qaidam Basin, China

2010 ◽  
Vol 78 (3) ◽  
pp. 736-742 ◽  
Author(s):  
ZHONG Jianhua ◽  
WEN Zhifeng ◽  
GUO Zeqing ◽  
WANG Haiqiao ◽  
GAO Jianbo
Keyword(s):  
Qaidam Basin ◽  
Western Qaidam Basin ◽  
Early Neogene
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