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An Asthenospheric Upwelling Beneath Central Mongolia——Implications for Intraplate surface uplift and Volcanism

Acta Geologica Sinica(English Edition) 2021年第S01期95卷 70-72页

作者： Matthew J.COMEAU Michael BECKEN Alexey V.KUVSHINOV Alexander GRAYVER Johannes KAUFL Erdenechimeg BATMAGNAI Shoovdor TSERENDUG Sodnomsambuu DEMBEREL Institut für Geophysik Universitat MünsterGermany Institute of Geophysics ETHZürichSwitzerland Institute of Astronomy and Geophysics Mongolian Academy of SciencesUlaanbaatarMongolia

Intraplate processes,such as continental surface uplift and intraplate volcanism,are enigmatic and the underlying mechanisms responsible are not fully understood.Central Mongolia is an ideal natural laboratory for stu... 详细信息

关键词： magnetotellurics electrical resistivity lithosphere structure intraplate volcanism surface uplift mantle upwelling lithosphere removal thermo-mechanical modeling

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Numerical simulation of flooding induced uplift for abandoned coal mines:simulation schemes and parameter sensitivity

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International Journal of Coal Science & Technology 2021年第6期8卷 1238-1249页

作者： Jian Zhao Heinz Konietzky Martin Herbst Roy Morgenstern Geotechnical Institute TU Bergakademie FreibergGustav-Zeuner-Straβe 109599 FreibergGermany

Numerical simulation approaches have been widely applied to study mining induced subsidence,and they are potential methods to study the flooding induced uplift for abandoned mines.This paper gives an overview about different numerical approaches to simulate uplift induced by flooding abandoned underground mines,including three different hydraulic conditions,considering both unconfined and confined water conditions.Four basic simulation schemes using 1-dimensional rock column models verified by analytical solutions demonstrate these procedures.The results reveal that flooding induced uplift is mainly related to the pore pressure in the mine goaf.The parameter study documents that height and stiffness of the mine goaf have the strongest influence on maximum surface uplift.

关键词： surface uplift Abandoned mine flooding Numerical simulation Analytical solution Parameter sensitivity

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黄河三门峡至扣马段的阶地序列及成因(英文)

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Journal of Geographical Sciences 2009年第3期19卷 351-358页

作者：苏怀王均平潘保田明庆忠李琼 College of Tourism and Geography Sciences Yunnan Normal University College of Resource Environment and TourismCapital Normal University College of Resources and Environment Lanzhou University

Based on field landscape investigations, thermoluminescence （TL）, magnetostratigraphy and Ioess-paleosol sequence, we found that there are at least four Yellow River terraces, whose ages are 0.86 Ma, 0.62 Ma, 0.13 Ma and 0.05 Ma, in Yuxi Fault-uplift （from Sanmen Gorge to Mengjin） and at least three Yellow River terraces, whose ages are 1.24 Ma, 0.25 Ma and 0.05 Ma, in Huabei Fault Depression （from Mengjin to Kouma）. All the terraces have a similar structure that several meters of paleosols directly develop on the top of fluvial silt. It shows that the Yellow River incised and consequently abandoned floodplain converted to terrace during the interglacial period. Therefore, there may be a link between the formation of terraces and glacial-interglacial climatic cycles. However, the differences in the Yellow River terrace sequences and ages between Yuxi Fault-uplift and Huabei Fault Depression indicate that the surface uplift should play an important role in the formation of these terraces.

关键词： Sanmen Gorge Yellow River terrace climatic changes surface uplift

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