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Melting geodynamics reveals a subduction origin for the Purang ophiolite,Tibet,China
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作者 Tao Ruan Zhong-Jie Bai +1 位作者 Wei-Guang Zhu Shi-Ji Zheng 《Acta Geochimica》 EI CAS CSCD 2024年第4期754-773,共20页
The debate regarding whether the Yarlung-Zangbo ophiolite(YZO)on the south of the Qinghai-Tibet Plateau,formed in a mid-ocean ridge(MOR)or a supra-subduction zone(SSZ)setting has remained unresolved.Here we present pe... The debate regarding whether the Yarlung-Zangbo ophiolite(YZO)on the south of the Qinghai-Tibet Plateau,formed in a mid-ocean ridge(MOR)or a supra-subduction zone(SSZ)setting has remained unresolved.Here we present petrological,mineralogical,and geochemical data associated with modeling melting geodynamics of the mantle peridotites from the Purang ophiolite in the western segment of the Yarlung-Zangbo Suture Zone(YZSZ)to explore its tectonic environment.The Purang lherzolites are characterized by the protogranular texture and have abyssal-peridotite-like mineral compositions,including low Cr^(#)(20-30)and TiO_(2) contents(<0.1wt%)in spinel,high Al_(2)O_(3)(2.9wt%-4.4wt%)and CaO(1.9wt%-3.7wt%)contents in orthopyroxene and LREE-depletion in clinopyroxene.Compositions of these lherzolites can be modeled by~11%dynamic melting of the DMM source with a small fraction of melt(~0.5%)entrapped within the source,a similar melting process to typical abyssal peridotites.The Purang harzburgites are characterized by the porphyroclastic texture and exhibit highly refractory mineral compositions such as high spinel Cr^(#)(40-68),low orthopyroxene Al_(2)O_(3)(<2.2wt%)and CaO(<1.1wt%)contents.Clinopyroxenes in these harzburgites are enriched in Sr(up to 6.0 ppm)and LREE[(Ce)N=0.02-0.4],but depleted in Ti(200 ppm,on average)and HREE[(Yb)N<2].Importantly,the more depleted samples tend to have higher clinopyroxene Sr and LREE contents.These observations indicate an open-system hydrous melting with a continuous influx of slab fluid at a subduction zone.The modeled results show that these harzburgites could be formed by 19%-23%hydrous melting with the supply rate of slab fluid at 0.1%-1%.The lower clinopyroxene V/Sc ratios in harzburgites than those in lherzolites suggest a high oxidation stage of the melting system of harzburgites,which is consistent with a hydrous melting environment for these harzburgites.It is therefore concluded that the Purang ophiolite has experienced a transformation of tectonic setting from MOR to SSZ. 展开更多
关键词 Melting geodynamics SSZ peridotites MOR peridotites CLINOPYROXENE Purang ophiolite
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Geodynamics of the South Balkan and Northern Aegean Regions Driven by the Westward Escape of Anatolia
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作者 Enzo Mantovani Marcello Viti +3 位作者 Daniele Babbucci Caterina Tamburelli Ismail Hoxha Luigi Piccardi 《International Journal of Geosciences》 CAS 2023年第5期480-504,共25页
The Plio-Quaternary deformation pattern of the northern Aegean and south Balkan regions is interpreted as an effect of the interaction between the Anatolian-Aegean-Pelagonian system (Tethyan belt), undergoing westward... The Plio-Quaternary deformation pattern of the northern Aegean and south Balkan regions is interpreted as an effect of the interaction between the Anatolian-Aegean-Pelagonian system (Tethyan belt), undergoing westward extrusion and strong deformation, and the surrounding plates (Nubia, Europe and Adriatic). Since the middle-late Miocene, the collision of the Tethyan belt with the continental Adriatic domain has caused strong E-W shortening in the outer Hellenides and Albanides, also involving the southward extrusion of the Peloponnesus wedge, at the expense of the Ionian oceanic domain. The roughly E-W extension recognized in the western South Balkan zones (Macedonia and eastern Albania) is related to the divergence between the Pelagonian belt (Albanides and Hellenides) and the Rhodope-Moesia domain. Stressed by the westward displacement of the central Anatolian plateau and by the southward bowing of the Cycladic Arc, the northern Aegean zone has contemporaneously undergone E-W compression and N-S extension, which has generated a series of dextral shear faults, delimiting a number of slats. The westward displacement and deformation of such slats can explain the morphological features of the northern Aegean zone. During this phase, the push of the central Anatolian plateau also caused the separation of the Rhodope massif from the Moesian European domain, with the consequent formation of the upper Thrace basin. This hypothesis can explain the Plio-Quaternary compressional deformations recognized in a sector of the North Anatolian fault system, the Ganos-Gelibolu zone. The proposed geodynamic/tectonic interpretation may help to explain some features of the time-space distribution of major earthquakes in the study area. 展开更多
关键词 South Balkan North Aegean geodynamics Tectonics SEISMICITY
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A new cache of Eoarchaean detrital zircons from the Singhbhum craton,eastern India and constraints on early Earth geodynamics 被引量:2
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作者 Bulusu Sreenivas Sukanta Dey +3 位作者 Y.J. Bhaskar Rao T. Vijaya Kumar E.V.S.S.K. Babu Ian S. Williams 《Geoscience Frontiers》 SCIE CAS CSCD 2019年第4期1359-1370,共12页
The dominant geodynamic processes that underpin the formation and evolution of Earth’s early crust remain enigmatic calling for new information from less studied ancient cratonic nuclei.Here,we present U-Pb ages and ... The dominant geodynamic processes that underpin the formation and evolution of Earth’s early crust remain enigmatic calling for new information from less studied ancient cratonic nuclei.Here,we present U-Pb ages and Hf isotopic compositions of detrital zircon grains from^2.9 Ga old quartzites and magmatic zircon from a 3.505 Ga old dacite from the Iron Ore Group of the Singhbhum craton,eastern India.The detrital zircon grains range in age between 3.95 Ga and 2.91 Ga.Together with the recently reported Hadean,Eoarchean xenocrystic(up to 4.24 Ga)and modem detritus zircon grains from the Singhbhum craton,our results suggest that the Eoarchean detrital zircons represent crust generated by recycling of Hadean felsic crust formed at^4.3-4.2 Ga and^3.95 Ga.We observe a prominent shift in Hf isotope compositions at^3.6-3.5 Ga towards super-chondritic values,which signify an increased role for depleted mantle and the relevance of plate tectonics.The Paleo-,Mesoarchean zircon Hf isotopic record in the craton indicates crust generation involving the role of both depleted and enriched mantle sources.We infer a short-lived suprasubduction setting around^3.6-3.5 Ga followed by mantle plume activity during the Paleo-,Mesoarchean crust formation in the Singhbhum craton.The Singhbhum craton provides an additional repository for Earth’s oldest materials. 展开更多
关键词 U-PB ZIRCON ages Hf isotopes SINGHBHUM CRATON HADEAN Eoarchean geodynamics
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Petrology, geochemistry and geodynamics of basic granulite from the Altay area, North Xinjiang, China 被引量:3
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作者 厉子龙 陈汉林 +2 位作者 杨树锋 董传万 肖文交 《Journal of Zhejiang University Science》 EI CSCD 2004年第8期979-984,共6页
The basic granulite of the Altay orogenic belt occurs as tectonic lens in the Devonian medium- to lower-grade metamorphic beds through fault contact. The Altay granulite (AG) is an amphibole plagioclase two-pyroxene ... The basic granulite of the Altay orogenic belt occurs as tectonic lens in the Devonian medium- to lower-grade metamorphic beds through fault contact. The Altay granulite (AG) is an amphibole plagioclase two-pyroxene granulite and is mainly composed of two pyroxenes, plagioclase, amphibole and biotite. Its melano-minerals are rich in Mg/(Mg+Fe2+), and its amphibole and biotite are rich in TiO2. The AG is rich in Mg/(Mg+Fe2+), Al2O3 and depletion of U, Th and Rb contents. The AG has moderate ∑REE and LREE-enriched with weak positive Eu anomaly. The AG shows island-arc pattern with negative Nb, P and Ti anomalies, reflecting that formation of the AG may be associated with subduction. Geochemical and mineral composition data reflect that the protolith of the AG is calc-alkaline basalt and formed by granulite facies metamorphism having peak P-T conditions of 750 °C?780 °C and 0.6?0.7 Gpa. The AG formation underwent two stages was suggested. In the early stage of oceanic crustal subduction, calc-alkaline basalt with island-arc environment underwent granulite facies metamorphism to form the AG in deep crust, and in the late stage, the AG was thrust into the upper crust. 展开更多
关键词 Basic granulite Petrology and geochemistry geodynamics Altay orogenic belt North Xinjiang
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Geodynamics of oceanic plateau and plume head accretion and their role in Phanerozoic orogenic systems of China 被引量:2
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作者 Peter G.Betts Louis Moresi +1 位作者 Meghan S.Miller David Willis 《Geoscience Frontiers》 SCIE CAS CSCD 2015年第1期49-59,共11页
We present three 3D numerical models of deep subduction where buoyant material from an oceanic plateau and a plume interact with the overriding plate to assess the influence on subduction dynamics, trench geometry, an... We present three 3D numerical models of deep subduction where buoyant material from an oceanic plateau and a plume interact with the overriding plate to assess the influence on subduction dynamics, trench geometry, and mechanisms for plateau accretion and continental growth. Transient instabilities of the convergent margin are produced, resulting in: contorted trench geometry; trench migration parallel with the plate margin; folding of the subducting slab and orocline development at the convergent margin; and transfer of the plateau to the overriding plate. The presence of plume material beneath the oceanic plateau causes fiat subduction above the plume, resulting in a "bowed" shaped subducting slab. In plateau-only models, plateau accretion at the edge of the overriding plate results in trench migration around the edge of the plateau before subduction is re-established directly behind the trailing edge of the plateau. The plateau shortens and some plateau material subducts. The presence of buoyant plume material beneath the oceanic plateau has a profound influence on the behaviour of the convergent margin. In the plateau ~ plume model, plateau accretion causes rapid trench advance. Plate convergence is accommodated by shearing at the base of the plateau and shortening in the overriding plate. The trench migrates around the edge of the plateau and subduction is re-established well behind the trailing edge of the plateau, effectively embedding the plateau into the overriding plate. A slab window forms beneath the accreted plateau and plume material is transferred from the subducting plate to the over- riding plate through the window. In all of the models, the subduction zone maintains a relatively stable configuration away from the buoyancy anomalies within the downgoing plate. The models provide a dynamic context for plateau and plume accretion in Phanerozoic accretionary orogenic systems such as the East China Orogen and the Central Asian Orogen (Altiads), which are characterised by accreted ophiolite complexes with diverse geochemical affinities, and a protracted evolution of accretion of exotic terranes includinu oceanic Dlateau and terranes with nlume origins. 展开更多
关键词 Subduction ACCRETION Plateau PLUME Central Asian Orogen geodynamics
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The deforming and rotating Earth——A review of the 18th International Symposium on Geodynamics and Earth Tide,Trieste 2016 被引量:2
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作者 Carla Braitenberg 《Geodesy and Geodynamics》 2018年第3期187-196,共10页
The 18th International Symposium on Geodynamics and Earth Tides 2016 covered phenomena that generate temporal variations in geodetic and geophysical observations. In calculating the stress field for Earth tides, the o... The 18th International Symposium on Geodynamics and Earth Tides 2016 covered phenomena that generate temporal variations in geodetic and geophysical observations. In calculating the stress field for Earth tides, the observed geodetic response is used for defining the Earth's theology, the Earth internal structure, 'Earth rotation parameters, and the functioning of the sophisticated instrumentation mounted on Earth and satellites. The instrumentation capable of observing Earth tides, measures changes generated by lithospheric plate movements, as the earthquake cycle and volcanism. Hydrology, tem- perature, and pressure, either of natural or anthropogenic origin, affect the high precision observations, and therefore must be included in this study-realm. 展开更多
关键词 geodynamics Earth tides Geodetic observation Earth rotation parameters GNSS
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Complexity and Geodynamics of Ore-accumulating Basins in the Qinling Orogenic Belt,China 被引量:1
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作者 FANG Weixuan ZHANG Guowei +1 位作者 LU Jiying LI Yaling 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2000年第3期458-465,共8页
Researches were made of different continental-margin and intraplate basin systems in the Qinling microplate in terms of hydrothermal deposition, geodynamics of basin formation, hydrothermal sedimentary rock facies, sy... Researches were made of different continental-margin and intraplate basin systems in the Qinling microplate in terms of hydrothermal deposition, geodynamics of basin formation, hydrothermal sedimentary rock facies, syntectonics in the basins, and the styles of ore accumulation in the basins. 展开更多
关键词 geodynamics ore-accumulating basin shallow extension deep convergence mantle convection basin complexity basin-mountain coupling QINLING
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Early Mesozoic Basin-Mountain Coupling Mechanism and Basin Geodynamics of East China 被引量:1
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作者 Liu Shaofeng Department of Geology, Northwest University, Xi’an 710069 Li Sitian Yang Shigong Cheng ShoutianFaculty of Earth Resources, China University of Geosciences, Wuhan 430074 《Journal of Earth Science》 SCIE CAS CSCD 1997年第1期30-34,共5页
arly Mesozoic flexural basins developed in East China include flexural basin with foredeep, compressive flexural basin, transpressional flexural basin and so on. Late Triassic collision between Gondwana and Eurasi... arly Mesozoic flexural basins developed in East China include flexural basin with foredeep, compressive flexural basin, transpressional flexural basin and so on. Late Triassic collision between Gondwana and Eurasian continents led to the formation of large flexural basins with foredeep. Jurassic Tethys geotectonic domain and western Pacific active continental margin activated, resulting in the formation of Early-Middle Jurassic large flexural basins and Late Jurassic small foreland basins. These basins and their marginal orogenic belts were arranged as weakly constrained lateral extrusion structures and constrained lateral extrusion structures, which show a genetic coupling relationship between the orogenic belts and the basins. 展开更多
关键词 flexural basin OROGEN lateral extrusion structure basin geodynamics.
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Deep geodynamics of far field interconti- nental back-arc extension: Formation of Cenozoic volcanoes in northeastern China 被引量:1
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作者 SHI Yao-lin(石耀霖) ZHANG Jian(张健) 《Acta Seismologica Sinica(English Edition)》 CSCD 2004年第z1期1-8,共8页
There are three cases of variation of trench location possible to occur during subduction: trench fixed, trench ad- vancing, and trench retreating. Retreat of trench may lead to back-arc extension. The Pacific plate ... There are three cases of variation of trench location possible to occur during subduction: trench fixed, trench ad- vancing, and trench retreating. Retreat of trench may lead to back-arc extension. The Pacific plate subducts at low angle beneath the Eurasia plate, tomographic results indicate that the subducted Pacific slab does not penetrate the 670 km discontinuity, instead, it is lying flat above the interface. The flattening occurred about 28 Ma ago. Geo- dynamic computation suggests: when the frontier of the subducted slab reaches the phase boundary of lower and upper mantle, it may be hindered and turn flat lying above the boundary, facilitates the retreat of trench and back-arc extension. Volcanism in northeastern China is likely a product of such retreat of subduction, far field back-arc extension, and melting due to reduce of pressure while mantle upwelling. 展开更多
关键词 back-arc basin Cenozoic volcano geodynamics northeastem China
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Some Fundamental Problems of Geodynamics and Application of Earth Observations by Space-Based Measurements 被引量:2
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作者 Ma Zongjin,Zhang Peizhen,Hong Hanjin,and Gao Xianglin Institute of Geology,SSB,Beijing 100029,China 《Earthquake Research in China》 1997年第1期7-17,共11页
Although great-progress has been made in the earth sciences,some fundamental problems of geodynamics remain unsolved.They are concerned with the whole earth as well as regional tectonics,such as the west Pacific and Q... Although great-progress has been made in the earth sciences,some fundamental problems of geodynamics remain unsolved.They are concerned with the whole earth as well as regional tectonics,such as the west Pacific and Qinghai-Xizhang plateau.The new generation of earth observation by space-based measurement will contribute to solving these problems of geodynamics.In this regard,some specific plans about application of these techniques are suggested in this paper. 展开更多
关键词 geodynamics WEST PACIFIC Qinghai-Xizhang PLATEAU SPACE-BASED measurement
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Stress Transfer and the Impact of the India-Eurasia Collision and the Western Pacific Subduction on the Geodynamics of the Asian Continent 被引量:1
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作者 Victor. G. Bykov Tatyana V. Merkulova 《Open Journal of Earthquake Research》 2022年第4期73-88,共16页
The interaction between the India-Eurasia collision and the Western Pacific subduction and their contribution to recent geodynamics of the Asian continent are discussed. We perform a comparative analysis of the data a... The interaction between the India-Eurasia collision and the Western Pacific subduction and their contribution to recent geodynamics of the Asian continent are discussed. We perform a comparative analysis of the data available from world literature and new data on the slow strain and earthquake migration from the India-Eurasia collision and the Western Pacific subduction zones. Based on the concepts of wave dynamics of the deformation processes, a localization scheme is constructed illustrating the migration of slow strain fronts in central and eastern Asia, and the wave geodynamic impact of collision and subduction on the Asian continent is shown. 展开更多
关键词 Stress Transfer Earthquake Migration Slow Strain Fronts geodynamics India-Eurasia Collision Western Pacific Subduction
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An Introduction on Basin Geodynamics of Eastern China
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《Journal of Earth Science》 SCIE CAS CSCD 1997年第1期1-3,共3页
AnIntroductiononBasinGeodynamicsofEasternChinaLiSitianFacultyofEarthResources,ChinaUniversityofGeosciences,W... AnIntroductiononBasinGeodynamicsofEasternChinaLiSitianFacultyofEarthResources,ChinaUniversityofGeosciences,Wuhan430074Geodyna... 展开更多
关键词 geodynamics AN BASIN China EASTERN INTRODUCTION
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GEODYNAMICS OF THE PAMIRS—HIMALAYA REGION
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作者 T.P. Belousov, Sh.A. Mukhamediev 《地学前缘》 EI CAS CSCD 2000年第S1期75-75,共1页
The Pamirs—Himalaya region possessing a complex tectonic structure and high seismic activity is located at the central part of the Alpine—Himalayan fold belt. During long\|term geodynamical studies we revealed new f... The Pamirs—Himalaya region possessing a complex tectonic structure and high seismic activity is located at the central part of the Alpine—Himalayan fold belt. During long\|term geodynamical studies we revealed new features of its modern structural plan steadily traced at different deep levels. The reconstruction of paleostresses by analyzing fracture patterns of Mesozoic—Cenozoic sedimentary rocks has been carried out in order to establish geodynamic regularities of the region under study and to propose a model of its development. Unlike traditional approaches to the problem of paleostress reconstruction from orientation of systems of rock joints, approaches which are based usually on the local strength criteria, we consider the formation of joint sets as a rheological instability manifesting in localized form. The systems of layers of localized plastic deformation are formed during lithification of sedimentary rocks and evolve with time into joint sets. The corresponding method of reconstruction of paleostress axes was developed. It was tested for some tectonically active regions: Central Asia, the Caucasus, the Crimea, Cuba, Iran, and others. The method was found to be useful for reconstruction of both history and spatial distribution of paleostress axes in active crustal blocks and near large geological structures. In the Pamirs—Himalaya region the fracturing of rocks has been investigated in about 1000 outcrops. By analyzing the Mesozoic—Cenozoic paleostress history it was confirmed that the structural features of the region (including an arc\|like shape of the Pamirs—Tian Shan junction zone) are caused by movement of the Hindustan mobile plate towards the rather stable Eurasian plate during the Alpine cycle of development. 展开更多
关键词 geodynamics PAMIRS HIMALAYA PALEOSTRESS paleodeclination
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GEODYNAMICS OF SUPERLARGE DEPOSITS IN CHINSES YUNNAN-GUIZHOU-GUANGXI ON THE EASTERN MARGIN OF THE QINGZANG PLEAUTAN
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作者 Fang Weixuan, Hu Ruizhong, Su Wenchao 《地学前缘》 EI CAS CSCD 2000年第S1期413-415,共3页
Interest in the ore\|forming histories of basins has grown rapid since 1960 and is now intensive. The main reason behind the acceleration is the increasing awareness that the natural processes responsible for generati... Interest in the ore\|forming histories of basins has grown rapid since 1960 and is now intensive. The main reason behind the acceleration is the increasing awareness that the natural processes responsible for generating metal deposits in the sedimentary basin from the source rocks of the beneath the basin and intensively hydrothermal activity in the basin. Observations made in different continental margin basin systems and superlarge deposits in Chinese Yunnan\|Guizhou\|Guangxi Province on the eastern margin of the Qingzang (Himalaya—Karakoram—Tibet) were investigated in terms of geodynamics of basin formation. Geotectonically, the area is situated in the conjoint between the Tethys—Himalaya and the Marginal\|Pacific tectonic domain, characterized by very complex geological structure, typical basin\|mountain tectonics, abundant Superlarge deposits. 展开更多
关键词 SUPERLARGE deposits geodynamics EXTENSIONAL tectonics sedimentary basin mantle plume extension of LITHOSPHERE Chinese Yunnan\|Gui zhou\|Guangxi Province
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Petrological geodynamics of mantle melting Ⅲ.AlphaMELTS+multiphase flow:The effect of water
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作者 Massimiliano Tirone 《Geoscience Frontiers》 SCIE CAS CSCD 2020年第4期1381-1402,共22页
The influence of water is evaluated in this last contribution of a series aiming to study the petrological and dynamic evolution of mantle melting.Water is considered to be either a chemical component in the melt or s... The influence of water is evaluated in this last contribution of a series aiming to study the petrological and dynamic evolution of mantle melting.Water is considered to be either a chemical component in the melt or solid assemblage but it can also be present as a pure water phase in a oversaturated environment.A three-phase-flow model was developed for this purpose.Only a limited set of conditions has been applied to the 1-D upwelling mantle column.A range of fixed temperatures(1150-1450℃) and water contents in the solid mantle(0,0.02 wt.%,0.2 wt.%) have been imposed at the entry point(120 km deep) for the two melting models introduced in the previous installments,dynamic equilibrium melting(DEM) and dynamic fractional melting(DFM) model.As expected,for a given temperature at the base of the mantle column,the depth of the first melt formation increases with higher water content in the mantle.After the first melt is created,very negligible amount of melt is formed over a certain depth interval which approximately ends at the depth where the first melting of the dry mantle would take place.However melt is present as a dynamic phase thorough the entire region regardless whether the DEM or DFM model has been applied.Under a quasi-steady state regime,the melt and residual mantle compositions vary significantly over depth,depending on the conditions imposed to the model(DEM,DFM,bottom temperature and water content).Several distinctions can be made at the extraction point(top of the mantle column=15 km deep).For DEM and DFM models at this lowest depth,the most influential factor affecting the melt composition after the quasi-steady state condition has been reached is the temperature at the base of the column.In general,for a high temperature model,the input water in the mantle does not seem to play a significant role on the bulk composition of the melt(except for the water content in melt).But at low temperature water does have some noticeable influence on the variation of some chemical components in melt(SiO2,Fe2 O3,CaO,Na2 O at T=1250℃ or lower).A similar conclusion can be made also for the residual mantle composition.The presence of a dynamic free water phase is detected only in absence of melt or in coexistence with a melt phase when the mantle is relatively cold(bottom temperature≤1250℃) and the input water content at the base of the model is relatively high(0.2 wt.%).Complete output data for several numerical simulations and six animations illustrating various melting models are available following the instructions in the supplementary material. 展开更多
关键词 PETROLOGY Mantle melting geodynamics THERMODYNAMICS AlphaMELTS Numerical modeling
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Tibetan Plateau:Geodynamics and Environmental Evolution——The cooperative projects based upon the memorandum of CAS and DFG
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作者 YAO Tandong ZHU Liping TAN Ge 《Journal of Geographical Sciences》 SCIE CSCD 2006年第3期371-374,共4页
The Tibetan Plateau (TP) plays a unique role in Earth System Sciences. It represents a key area to understand not only basic geodynamic processes linked with the formation and uplift of mountains and plateaus, but a... The Tibetan Plateau (TP) plays a unique role in Earth System Sciences. It represents a key area to understand not only basic geodynamic processes linked with the formation and uplift of mountains and plateaus, but also the interaction between plateau uplift and environmental changes. Over the last 50 million years the formation of the TP has considerably influenced the global climate and monsoon system. Moreover, the TP proves to be extremely sensitive to present-day global change phenomena. Based upon the foundation of the new Institute of Tibetan Plateau Research (1TP) by the Chinese Academy of Sciences (CAS) and through the Memorandum signed by the CAS and DFG (Deutschen Forschungsgemeinschaft), both CAS and DFG provide opportunities to intensify TP research and to develop coordinated research programs. "The Tibetan Plateau - Geodynamics and Environmental Evolution" consisting of one big projects funded by CAS and five projects funded by DFG that cover the pre- and early-collision history of the TP, the Palaeogene/Neogene uplift and climatic dynamics as well as the Late Quaternary and recent environmental and climatic changes on the TP. The projects are linked through several levels of interactions. 展开更多
关键词 Tibetan Plateau Sino-Germany cooperation geodynamics environmental evolution
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Geodynamics on Formation and Evolution of Bohaiwan Basin,China
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作者 Zhang Shulin Tian ShichengDepartment of Petroleum Geology, China University of Geosciences, Wuhan 430074 《Journal of Earth Science》 SCIE CAS CSCD 1997年第1期53-55,共3页
he Bohaiwan basin is a Cenozoic lacustrine fault basin, which was composed of many subbasins in Eogene. The subbasins can be classified into three types,such as extension subbasin,shove subbasin and transform subbasin... he Bohaiwan basin is a Cenozoic lacustrine fault basin, which was composed of many subbasins in Eogene. The subbasins can be classified into three types,such as extension subbasin,shove subbasin and transform subbasin, and five subtypes. In the light of the structural styles and distributions of the subbasins, regional dynamic setting and basalt data in the Bohaiwan basin, this paper proposes an inland transformextension model. 展开更多
关键词 structural style transformextension model geodynamics of sedimentary basin Bohaiwan basin.
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Lithospheric structure and continental geodynamics
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作者 许忠淮 石耀霖 《Acta Seismologica Sinica(English Edition)》 CSCD 2003年第5期544-560,共17页
This paper briefly reviews main progress in the research on lithospheric structure and continental geodynamics made by Chinese geophysicists during last 4 years since 22nd IUGG general assembly in July 1999. The resea... This paper briefly reviews main progress in the research on lithospheric structure and continental geodynamics made by Chinese geophysicists during last 4 years since 22nd IUGG general assembly in July 1999. The research mainly covers the following fields: investigations on regional lithospheric structure, DSS survey of crust and upper mantle velocity structure, study on present-day inner movement and deformation of Chinese mainland by analyzing GPS observations, geodynamics of Qingzang plateau, geophysical survey of the Dabie-Sulu ultra-high pressure metamorphic belt and probing into its formation mechanism, geophysical observations in sedimentary basins and study on their evolution process, and plate dynamics, etc. 展开更多
关键词 lithospheric structure deep seismic sounding GPS Qingzang plateau continental geodynamics
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Geodesy and Geodynamics
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《Geodesy and Geodynamics》 2011年第4期64-66,共3页
关键词 WANG Geodesy and geodynamics ZHANG LI CHEN
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Geodesy and Geodynamics Vol. 3 2012 Contents
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《Geodesy and Geodynamics》 2012年第4期63-64,共2页
关键词 WANG LI Geodesy and geodynamics Vol
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