The project"Groundwater Investigation in the Cuvelai-Etosha Basin"was a 3 year project in the framework of the German-Namibian Technical Cooperation,concluded between the Republic of Namibia and the Federal ...The project"Groundwater Investigation in the Cuvelai-Etosha Basin"was a 3 year project in the framework of the German-Namibian Technical Cooperation,concluded between the Republic of Namibia and the Federal Republic of Germany.The study is conducted by the Department of Water Affairs and Forestry(DWAF) and the Federal Institute for Geosciences and Natural Resources(BGR).展开更多
Based on the analysis and interpretations made on high resolution airborne radiometric data and previous geological maps,a geophysical interpretation map of Musoma-Mara Greenstone Belt(MMGB) was obtained, and the map ...Based on the analysis and interpretations made on high resolution airborne radiometric data and previous geological maps,a geophysical interpretation map of Musoma-Mara Greenstone Belt(MMGB) was obtained, and the map categorized the MMGB granitoids into two types:high K,U and Th granites and high K relative to U and Th granites.The geophysical interpretation map used as base map during ground follow-up whereby granite types were sampled accordingly.Geochemical展开更多
A geophysical survey including Magnetotelluric sounding(MT), gravity and geomagnetism was carried out in eastern region of Qinghai—Tibet plateau in 1998. It is to be known from tectonic map that study area was divide...A geophysical survey including Magnetotelluric sounding(MT), gravity and geomagnetism was carried out in eastern region of Qinghai—Tibet plateau in 1998. It is to be known from tectonic map that study area was divided into four blocks by three large sutures, but we have very little information on deep\|seated structure which have close relationship with evolution of Tibet plateau, our purpose is to find some deep crustal structure evidences of the blocks and sutures for understanding deep tectonic feature in this region. The geophysical survey region is located in about 97～98°E and 35～26°N, the profile with the length of 760km runs through Bayanhar, Qingtang and Gandise block in NS direction, 349 gravity and geomagnetic data were acquired simultaneously, and 31 MT sites are be placed along the profile with about 18km\|interval to detect electrical conductive feature.展开更多
Using resistivity as index and referring to the law about effect of slope to resistivity,the apparent resistivities of geophysical model concerned with unsteady rock type slope failure were calculated systematically b...Using resistivity as index and referring to the law about effect of slope to resistivity,the apparent resistivities of geophysical model concerned with unsteady rock type slope failure were calculated systematically by using the boundary integral equation method.After studying the feature of resistivity response of slope failure,the variety of resistivity during evolution of slope from steady to unsteady was found and the characteristics of resistivity response about slope failure was concluded.These make electrical exploring method for detecting the slip plane or structural plane of slope failure,evaluating the stability of the slope,and forecasting slope failure become true.展开更多
Nan suture in northern Thailand,representing a complex zone with complex geology and structures, has been selected for airborne geophysical investigations.The suture has been widely accepted as an early Triassic colli...Nan suture in northern Thailand,representing a complex zone with complex geology and structures, has been selected for airborne geophysical investigations.The suture has been widely accepted as an early Triassic collision zone between Shan-Thai and Indochina microcontinental blocks.Our field data展开更多
The founding of the Department of Marine Geology can be traced back to ShandongCollege of Geology founded in the late 1950s in Qingdao.After some 30 years of ups anddowns,through painstaking efforts,above all through ...The founding of the Department of Marine Geology can be traced back to ShandongCollege of Geology founded in the late 1950s in Qingdao.After some 30 years of ups anddowns,through painstaking efforts,above all through the perios of rapid developmentbrought about by the policies of reform and opening to the world since the Third PlenarySession of the Eleventh Central Committee of the CPC,it has grown into a departmentquite large in scale.There are at present five specialities:marine geology。展开更多
In recent decades,colleagues working in the Discipline of Geological Resources and Geological Engineering at Central South University made significant progress in theoretic study and application of geophysics,ore depo...In recent decades,colleagues working in the Discipline of Geological Resources and Geological Engineering at Central South University made significant progress in theoretic study and application of geophysics,ore deposit and shale gas geology,3 D predictive modeling of concealed resources,and geological engineering.In geophysics,world-class progress was achieved in the development,data processing,equipment,and scientific survey of electromagnetic method in onshore and offshore environments and the tectonic evolution of the Tibetan Plateau.Especially,advanced wide-field electromagnetic exploration method and equipment as a highlight technique won the first prize of National Science and Technology Invention of China.In ore geology,progressive and complex characteristics of most nonferrous ore deposits and the geodynamic relationship between crust-mantle reaction and mineralization in south China were revealed.Progressive metallogenic models of certain typical ore deposits were established based on the study of fluid inclusion and geochemistry.According to characteristics of complex metallogenic system of polygenetic ore deposit,key ore-controlling factors were found and summarized.The investigation on unconventional resources advanced China’s shale gas resource evaluation system.In 3 D predictive modelling of metallogenic,a large-scale location prediction model was established for exploration of crisis mines and concealed ore deposits.Our developed 3 D predictive modeling techniques for concealed orebodies were widely used to explore deep mineral resources in China.In geological engineering area,the key technologies for deep drilling into complex formations were developed.Especially the drilling fluid and tools were utilized in the fieldwork.The rock and soil mechanics analysis method and anchor technologies were also established and applied to engineering practice.展开更多
文摘The project"Groundwater Investigation in the Cuvelai-Etosha Basin"was a 3 year project in the framework of the German-Namibian Technical Cooperation,concluded between the Republic of Namibia and the Federal Republic of Germany.The study is conducted by the Department of Water Affairs and Forestry(DWAF) and the Federal Institute for Geosciences and Natural Resources(BGR).
文摘Based on the analysis and interpretations made on high resolution airborne radiometric data and previous geological maps,a geophysical interpretation map of Musoma-Mara Greenstone Belt(MMGB) was obtained, and the map categorized the MMGB granitoids into two types:high K,U and Th granites and high K relative to U and Th granites.The geophysical interpretation map used as base map during ground follow-up whereby granite types were sampled accordingly.Geochemical
文摘A geophysical survey including Magnetotelluric sounding(MT), gravity and geomagnetism was carried out in eastern region of Qinghai—Tibet plateau in 1998. It is to be known from tectonic map that study area was divided into four blocks by three large sutures, but we have very little information on deep\|seated structure which have close relationship with evolution of Tibet plateau, our purpose is to find some deep crustal structure evidences of the blocks and sutures for understanding deep tectonic feature in this region. The geophysical survey region is located in about 97～98°E and 35～26°N, the profile with the length of 760km runs through Bayanhar, Qingtang and Gandise block in NS direction, 349 gravity and geomagnetic data were acquired simultaneously, and 31 MT sites are be placed along the profile with about 18km\|interval to detect electrical conductive feature.
基金Project(07JJ6072) supported by the Natural Science Foundation of Hunan Province,China
文摘Using resistivity as index and referring to the law about effect of slope to resistivity,the apparent resistivities of geophysical model concerned with unsteady rock type slope failure were calculated systematically by using the boundary integral equation method.After studying the feature of resistivity response of slope failure,the variety of resistivity during evolution of slope from steady to unsteady was found and the characteristics of resistivity response about slope failure was concluded.These make electrical exploring method for detecting the slip plane or structural plane of slope failure,evaluating the stability of the slope,and forecasting slope failure become true.
文摘Nan suture in northern Thailand,representing a complex zone with complex geology and structures, has been selected for airborne geophysical investigations.The suture has been widely accepted as an early Triassic collision zone between Shan-Thai and Indochina microcontinental blocks.Our field data
文摘The founding of the Department of Marine Geology can be traced back to ShandongCollege of Geology founded in the late 1950s in Qingdao.After some 30 years of ups anddowns,through painstaking efforts,above all through the perios of rapid developmentbrought about by the policies of reform and opening to the world since the Third PlenarySession of the Eleventh Central Committee of the CPC,it has grown into a departmentquite large in scale.There are at present five specialities:marine geology。
文摘In recent decades,colleagues working in the Discipline of Geological Resources and Geological Engineering at Central South University made significant progress in theoretic study and application of geophysics,ore deposit and shale gas geology,3 D predictive modeling of concealed resources,and geological engineering.In geophysics,world-class progress was achieved in the development,data processing,equipment,and scientific survey of electromagnetic method in onshore and offshore environments and the tectonic evolution of the Tibetan Plateau.Especially,advanced wide-field electromagnetic exploration method and equipment as a highlight technique won the first prize of National Science and Technology Invention of China.In ore geology,progressive and complex characteristics of most nonferrous ore deposits and the geodynamic relationship between crust-mantle reaction and mineralization in south China were revealed.Progressive metallogenic models of certain typical ore deposits were established based on the study of fluid inclusion and geochemistry.According to characteristics of complex metallogenic system of polygenetic ore deposit,key ore-controlling factors were found and summarized.The investigation on unconventional resources advanced China’s shale gas resource evaluation system.In 3 D predictive modelling of metallogenic,a large-scale location prediction model was established for exploration of crisis mines and concealed ore deposits.Our developed 3 D predictive modeling techniques for concealed orebodies were widely used to explore deep mineral resources in China.In geological engineering area,the key technologies for deep drilling into complex formations were developed.Especially the drilling fluid and tools were utilized in the fieldwork.The rock and soil mechanics analysis method and anchor technologies were also established and applied to engineering practice.
