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High-Angle Normal Faulting at the Tangra Yumco Graben (Southern Tibet) since similar to 15 Ma 期刊论文
JOURNAL OF GEOLOGY, 2019, 卷号: 127, 期号: 1, 页码: 15-36
Authors:  Wolff, R (Wolff, Reinhard);  Hetzel, R (Hetzel, Ralf);  Dunkl, I (Dunkl, Istvan);  Xu, Q (Xu, Qiang);  Brocker, M (Broecker, Michael);  Anczkiewicz, AA (Anczkiewicz, Aneta A.)
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Several active graben systems in Tibet and the Himalaya are the expression of ongoing east-west extension, but the significance and history of normal faulting in this large region are still debated. Here, we present geo- and thermochronological data for a granite intrusion in the footwall of an active high-angle normal fault at the Tangra Yumco graben to constrain the onset and history of normal faulting. Crystallization of the granitic rocks occurred at 87 +/- 1 Ma, as revealed by U/Pb zircon dating. After an initial phase of rapid cooling from magmatic temperatures, a later phase of slow cooling is recorded by Rb/Sr biotite ages between similar to 72 and similar to 60 Ma. The elevation dependence of the Rb/Sr ages suggests that cooling was controlled by erosion, which proceeded at a rate of similar to 0.05 km/My during the latest Cretaceous and early Paleocene. The subsequent history of normal faulting is recorded by zircon (U-Th)/He ages of 12.5 +/- 1.1 and 9.7 +/- 0.7 Ma, apatite fission-track ages between 10.8 +/- 1.7 and 7.8 +/- 1.2 Ma, and apatite (U-Th)/He ages from 4.9 +/- 0.4 to 3.0 +/- 0.2 Ma. Thermokinematic modeling of these age data indicates that normal faulting started at 14.5 +/- 1.8 Ma at a rate of similar to 0.3 km/My and accelerated to similar to 0.7 km/My in the Pliocene. Our age constraint for the initiation of faulting supports a widespread onset of rifting in Tibet at similar to 15-10 Ma, as reported for other graben systems. Finally, we suggest that the distribution of high-angle and low-angle normal faults is controlled by their position relative to the India-Asia convergence vector and by lateral variations in the thermal state of the lithosphere.  
Late glacial and Holocene vegetation and climate variations at Lake Tangra Yumco, central Tibetan Plateau 期刊论文
GLOBAL AND PLANETARY CHANGE, 2019, 卷号: 174, 期号: 0, 页码: 16-25
Authors:  Ma, QF (Ma, Qingfeng);  Zhu, LP (Zhu, Liping);  Lu, XM (Lu, Xinmiao);  Wang, JB (Wang, Junbo);  Ju, JT (Ju, Jianting);  Kasper, T (Kasper, Thomas);  Daut, G (Daut, Gerhard);  Haberzettl, T (Haberzettl, Torsten)
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North-atlantic Climate  High-resolution  Indian Monsoon  Summer Monsoon  Pollen Rain  Sediments  Record  Shift  Co  Reconstructions  
Paleo-environmental change since the Late Glacial inferred from lacustrine sediment in Selin Co, central Tibet 期刊论文
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, 2019, 卷号: 516, 期号: 0, 页码: 101-112
Authors:  Gyawali, AR (Gyawali, Ayush Raj);  Wang, JB (Wang, Junbo);  Ma, QF (Ma, Qingfeng);  Wang, Y (Wang, Yong);  Xu, T (Xu, Teng);  Guo, Y (Guo, Yun);  Zhu, LP (Zhu, Liping)
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Ocean Summer Monsoon  Lake-level Changes  Hydrological Changes  Tangra Yumco  Nam-co  Moisture Evolution  Climate-change  Water Storage  Central-asia  Siling-co  
Ostracod-based reconstruction of Late Quaternary lake level changes within the Tangra Yumco lake system (southern Tibetan Plateau) 期刊论文
JOURNAL OF QUATERNARY SCIENCE, 2018, 卷号: 33, 期号: 6, 页码: 713-720
Authors:  Alivernini, M (Alivernini, M.);  Akita, LG (Akita, L. G.);  Ahlborn, M (Ahlborn, M.);  Borner, N (Boerner, N.);  Haberzettl, T (Haberzettl, T.);  Kasper, T (Kasper, T.);  Plessen, B (Plessen, B.);  Peng, P (Peng, P.);  Schwalb, A (Schwalb, A.);  Wang, J (Wang, J.);  Frenzel, P (Frenzel, P.)
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Ocean Summer Monsoon  Nam Co  Basin  History  
Late quaternary lake level changes of Taro Co and neighbouring lakes, southwestern Tibetan Plateau, based on OSL dating and ostracod analysis 期刊论文
GLOBAL AND PLANETARY CHANGE, 2018, 卷号: 166, 期号: 0, 页码: 1-18
Authors:  Alivernini, M (Alivernini, Mauro);  Lai, ZP (Lai, Zhongping);  Frenzel, P (Frenzel, Peter);  Furstenberg, S (Fuerstenberg, Sascha);  Wang, JB (Wang, Junbo);  Guo, Y (Guo, Yun);  Peng, P (Peng, Ping);  Haberzettl, T (Haberzettl, Torsten);  Borner, N (Boerner, Nicole);  Mischke, S (Mischke, Steffen)
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Tangra Yumco  Paleoclimatic Changes  Stable-isotopes  Luminescence  Sediments  Geochemistry  Assemblages  History  Waters  Basin  
Chronology of a lacustrine core from Lake Linggo Co using a combination of OSL, C-14 and Pb-210 dating: implications for the dating of lacustrine sediments from the Tibetan Plateau 期刊论文
BOREAS, 2018, 卷号: 47, 期号: 2, 页码: 656-670
Authors:  Hu, G (Hu, Gang);  Yi, CL (Yi, Chaolu);  Zhang, JF (Zhang, Jiafu);  Cao, GR (Cao, Guirong);  Pan, BL (Pan, Baolin);  Liu, JH (Liu, Jinhua);  Jiang, T (Jiang, Tao);  Yi, SW (Yi, Shuangwen);  Li, DH (Li, Dehong);  Huang, JW (Huang, Jianwei)
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Optically Stimulated Luminescence  High-resolution Osl  Tangra Yumco  Grain-size  Environmental-changes  Level Changes  Single-grain  Loess Site  Lop Nur  Monsoon  
Spatiotemporal variations in volume of closed lakes on the Tibetan Plateau and their climatic responses from 1976 to 2013 期刊论文
CLIMATIC CHANGE, 2017, 卷号: 140, 期号: 3-4, 页码: 621-633
Authors:  Yang, RM (Yang, Ruimin);  Zhu, LP (Zhu, Liping);  Wang, JB (Wang, Junbo);  Ju, JT (Ju, Jianting);  Ma, QF (Ma, Qingfeng);  Turner, F (Turner, Falko);  Guo, Y (Guo, Yun);  Yang, RM;  Zhu, LP
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RECENT GLACIAL RETREAT  NAM CO LAKE  WATER STORAGE  ASIAN MONSOON  LEVEL CHANGES  AREA CHANGES  IMPACT  BASIN  ALTIMETRY  QINGHAI  
Stable isotopes and trace elements in modern ostracod shells: implications for reconstructing past environments on the Tibetan Plateau, China 期刊论文
JOURNAL OF PALEOLIMNOLOGY, 2017, 卷号: 58, 期号: 2, 页码: 191-211
Authors:  Borner, N (Boerner, Nicole);  De Baere, B (De Baere, Bart);  Akita, LG (Akita, Lailah Gifty);  Francois, R (Francois, Roger);  Jochum, KP (Jochum, Klaus Peter);  Frenzel, P (Frenzel, Peter);  Zhu, LP (Zhu, Liping);  Schwalb, A (Schwalb, Antje);  Borner, N
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Tangra Yumco  Paleoenvironmental Reconstructions  Nonmarine Ostracods  Lake-sediments  Water Samples  Chemistry  Oxygen  Geochemistry  Temperature  Records  
Modern pollen assemblages from surface lake sediments and their environmental implications on the southwestern Tibetan Plateau 期刊论文
BOREAS, 2017, 卷号: 46, 期号: 2, 页码: 242-253
Authors:  Ma, QF (Ma, Qingfeng);  Zhu, LP (Zhu, Liping);  Lu, XM (Lu, Xinmiao);  Wang, Y (Wang, Yong);  Guo, Y (Guo, Yun);  Wang, JB (Wang, Junbo);  Ju, JT (Ju, Jianting);  Peng, P (Peng, Ping);  Tang, LY (Tang, Lingyu);  Ma, QF
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QAIDAM BASIN  QUANTITATIVE RECONSTRUCTION  CLIMATE RECONSTRUCTIONS  HOLOCENE VEGETATION  ALPINE VEGETATION  SOURCE AREA  CHINA  MOUNTAINS  LAST  MONGOLIA  
Synchronous pattern of moisture availability on the southern Tibetan Plateau since 17.5 cal. ka BP-the Tangra Yumco lake sediment record 期刊论文
BOREAS, 2017, 卷号: 46, 期号: 2, 页码: 229-241
Authors:  Ahlborn, M (Ahlborn, Marieke);  Haberzettl, T (Haberzettl, Torsten);  Wang, JB (Wang, Junbo);  Henkel, K (Henkel, Karoline);  Kasper, T (Kasper, Thomas);  Daut, G (Daut, Gerhard);  Zhu, LP (Zhu, Liping);  Mausbacher, R (Maeusbacher, Roland);  Ahlborn, M
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GRAIN-SIZE DISTRIBUTION  PALEOMAGNETIC SECULAR VARIATION  NAM CO  HYDROLOGICAL CHANGES  ASIAN MONSOON  ENVIRONMENTAL-CHANGES  SURFACE SEDIMENTS  ORGANIC-MATTER  HOLOCENE  CHINA