The development of 3D geological models involves the integration of large amounts of geological data,as well as additional accessible proprietary lithological,structural,geochemical,geophysical,and borehole data.Luanc...The development of 3D geological models involves the integration of large amounts of geological data,as well as additional accessible proprietary lithological,structural,geochemical,geophysical,and borehole data.Luanchuan,the case study area,southwestern Henan Province,is an important molybdenum-tungsten-lead-zinc polymetallic belt in China.展开更多
In order to investigate the vertical change of atmospheric particulates and it’s influence of the resident’s floor-choosing in Beijing,we take PM10 as the research object,the 18th building whichis 49.2 m in height o...In order to investigate the vertical change of atmospheric particulates and it’s influence of the resident’s floor-choosing in Beijing,we take PM10 as the research object,the 18th building whichis 49.2 m in height of China University of Geosciences as the representative of resident building in Beijing,use the TSP/PM 10/PM2.5-2 particulate-sampling machine to sample PM10 on the south balcony of 1,4,8,12,16th floor respectively in 72 hours from 12 o’clock of January 31st to 12 o’clock of February 2nd,2007.展开更多
As one of the provinces of highest economic growth in coastal China,Zhejiang Province is experiencing serious geological disasters during the past development of economy.The main kinds of geo-hazards include landslide...As one of the provinces of highest economic growth in coastal China,Zhejiang Province is experiencing serious geological disasters during the past development of economy.The main kinds of geo-hazards include landslides,rock falls and debris-flows in Zhejiang Province,which are mainly induced by intensive rainfall during typhoon season or by long-term rainfall from May to June every year.展开更多
Tuotuo River region(E91°-E93°,N33°-N 35°)is located in southwest Qinghai Province,P.R.China.It lies in one of the most important metallogenic belts in China—Northwest Sanjiang Metallogenic Belt,du...Tuotuo River region(E91°-E93°,N33°-N 35°)is located in southwest Qinghai Province,P.R.China.It lies in one of the most important metallogenic belts in China—Northwest Sanjiang Metallogenic Belt,due to which Tuotuo River region can be of very high metal mineral potential not only in Qinghai Province but also nationwide.In this research,multisource data sets including geological,geochemical,geophysical,and remotely sensed images were integrated for mineral potential analysis with GIS technology.Under the guidance of regional metallogenic features and deposit-forming geologic anomaly theories,evidential layers were obtained from these sets.展开更多
The Songliao Basin,the biggest Cretaceous oil-gas producing lacustrine basin in northeast China,contains the giant Daqing Oilfield situated in the central part.Lacustrine setting dominated the basin during the Cretace...The Songliao Basin,the biggest Cretaceous oil-gas producing lacustrine basin in northeast China,contains the giant Daqing Oilfield situated in the central part.Lacustrine setting dominated the basin during the Cretaceous period.The SK-I drilling,located in the northern central part of the Songliao Basin,was completed in 2007 and is supposed to be a possible breakthrough in lake investigation.展开更多
The significance of this paper is to understand the characteristics of Late Paleozoic depositional environment,lithofacies palaeogeography and its distribu-tion pattern in Henan Province,to resolve the issue of basic ...The significance of this paper is to understand the characteristics of Late Paleozoic depositional environment,lithofacies palaeogeography and its distribu-tion pattern in Henan Province,to resolve the issue of basic geological,exploration and prospecting services for the region.展开更多
Jehol Biota in western Liaoning and northern Hebei has been a hot topic of global concern,a large number of exquisite fossils were found in Yixian group Sihetun,such as Sinosauropteryx,Protarchaeopteryx,Caudipteryx an...Jehol Biota in western Liaoning and northern Hebei has been a hot topic of global concern,a large number of exquisite fossils were found in Yixian group Sihetun,such as Sinosauropteryx,Protarchaeopteryx,Caudipteryx and Confuciusornis.Scientists consider the discovering of Sinosauropteryx discovered so far as the earliest ancestor of birds.展开更多
There are more than 30 fossil-dominated geoparks established in China.Most of them are of high scientific values.Compared to landscape-dominated geoparks,the fossil-dominated ones generally lack of charming natural sc...There are more than 30 fossil-dominated geoparks established in China.Most of them are of high scientific values.Compared to landscape-dominated geoparks,the fossil-dominated ones generally lack of charming natural sceneries,but the abundant and exquisite preserved fossils in geoparks are very attractive to the public.In order to protect and exploit these fossils,the evaluation plays an important role in the geopark construction.Ningcheng geopark is famous for the Mesozoic Daohugou biota.The fossil assemblage is different from Jehol biota,which attracts many experts.展开更多
Pyrite is a ubiquitous authigenic mineral in modern anoxic sediments and occurs in ancient sedimentary rocks.Study of sedimentary pyrite morphology,which can provide useful information on deposition environments and e...Pyrite is a ubiquitous authigenic mineral in modern anoxic sediments and occurs in ancient sedimentary rocks.Study of sedimentary pyrite morphology,which can provide useful information on deposition environments and early diagenetic processes,has become an important aspect for reconstruction of palaeoenviroment.The Upper Cretaceous Qingshankou Formation Unit 1(K<sub>2</sub>qn<sup>1</sup>)lithology。展开更多
The Songliao basin in northeast China is a Mesozoic rift basin characterized by Mesozoic and Cenozoic hydrocarbon systems.The Changling fault depression located in the south of the Songliao Basin.
Heterogeneity of permeability in fractured media is a hot research topic in hydrogeology and numerous approaches had been proposed to characterize heterogeneity in the past several decades.However,little attention has...Heterogeneity of permeability in fractured media is a hot research topic in hydrogeology and numerous approaches had been proposed to characterize heterogeneity in the past several decades.However,little attention has been paid to correlate permeabilityheterogeneity with geological conditions.In thisstudy,several causes of permeability heterogeneity,i.e.lithology,tectonism,and depth,are identified.Theunit absorption values(denoted as@),which areresults obtained from the packer test,are employed torepresent the permeability.展开更多
The eastem Tianshan metallogenic belt(E92°-96°,N41°-43°),one of the most important Cu-Ni-Au mineral districts in China,is located at the conjunction of the Siberian plate and Tarim plate.The fuzzy ...The eastem Tianshan metallogenic belt(E92°-96°,N41°-43°),one of the most important Cu-Ni-Au mineral districts in China,is located at the conjunction of the Siberian plate and Tarim plate.The fuzzy weight of evidence method(FWofE)is applied to predict and delineate the most prospective areas for copper resource based on the available ore-related geological and geochemical data.展开更多
Columnar joints are regular columnar primary magmatic structure with polygonal cross sections developed in volcanic rocks which are commonly induced in cooling basaltic larva with low viscosity and high fluidity.In re...Columnar joints are regular columnar primary magmatic structure with polygonal cross sections developed in volcanic rocks which are commonly induced in cooling basaltic larva with low viscosity and high fluidity.In recent years,typical columnar joints in acidic volcanic rocks have been discovered in many other regions in China,including Quzhou area in Zhejiang Province,Siping and Shanmen area in Jilin Province.展开更多
Located at Songliao Basin in the Northeastern China,SK-1 is the first Cretaceous terrestrial scientific drilling in the world.This program recovered the Middle to Upper Cretaceous strata of Songliao Basin which includ...Located at Songliao Basin in the Northeastern China,SK-1 is the first Cretaceous terrestrial scientific drilling in the world.This program recovered the Middle to Upper Cretaceous strata of Songliao Basin which includes,from bottom to top,the Quantou,Qingshankou,Yaojia,Nenjiang,Mingshui and Sifangtai Formations.展开更多
Since the beginning of the 21st century,advances in big data and artificial intelligence have driven a paradigm shift in the geosciences,moving the field from qualitative descriptions toward quantitative analysis,from...Since the beginning of the 21st century,advances in big data and artificial intelligence have driven a paradigm shift in the geosciences,moving the field from qualitative descriptions toward quantitative analysis,from observing phenomena to uncovering underlying mechanisms,from regional-scale investigations to global perspectives,and from experience-based inference toward data-and model-enabled intelligent prediction.AlphaEarth Foundations(AEF)is a next-generation geospatial intelligence platform that addresses these changes by introducing a unified 64-dimensional shared embedding space,enabling-for the first time-standardized representation and seamless integration of 12 distinct types of Earth observation data,including optical,radar,and lidar.This framework significantly improves data assimilation efficiency and resolves the persistent problem of“data silos”in geoscience research.AEF is helping redefine research methodologies and fostering breakthroughs,particularly in quantitative Earth system science.This paper systematically examines how AEF’s innovative architecture-featuring multi-source data fusion,high-dimensional feature representation learning,and a scalable computational framework-facilitates intelligent,precise,and realtime data-driven geoscientific research.Using case studies from resource and environmental applications,we demonstrate AEF’s broad potential and identify emerging innovation needs.Our findings show that AEF not only enhances the efficiency of solving traditional geoscientific problems but also stimulates novel research directions and methodological approaches.展开更多
At the 19th G20 Summit in Brazil in November 2024,China promoted the development of sustainable solutions to climate change,biodiversity loss,and environmental pollution.This continued the theme of the 2016 G20 Hangzh...At the 19th G20 Summit in Brazil in November 2024,China promoted the development of sustainable solutions to climate change,biodiversity loss,and environmental pollution.This continued the theme of the 2016 G20 Hangzhou Summit,at which China placed development at the center of the G20’s macroeconomic policy coordination for the first time,adopting the G20 Action Plan on the United Nations 2030 Agenda for Sustainable Development and the G20 Initiative on Supporting Industrialization in Africa and Least Developed Countries.In Brazil,China announced actions on advancing modernization in Africa over the next three years with a Chinese commitment of RMB360 billion yuan in financial support.In this article,we examine the potential role of geoscience research and practice in development,particularly in the sustainable use of natural resources,the prevention of climate change impacts,as well as mitigation of geo-hazards and their health implications,indicating the areas where China’s geoscience for Africa is strong and where it requires more effort.We find that although China is the world’s leading publisher of scientific papers,its contribution to geoscience in Africa(the globe’s fastest-growing economic area),as shown by bibliometric research,appears to be rather small and inconsistent with the research priorities of Africa.Amongst the priorities for geoscience research in Africa,which are not addressed substantially by the research conducted so far,are sustainable mineral and hydrocarbon development,hydrology and hydrogeology,climate change and resilience,natural hazards,medical geology,agrominerals,and geoscience education and training.A particular opportunity for African nations is the presence of critical minerals-minerals needed for the energy transition and for batteries for electric cars in particular.Africa is well-endowed with many of these critical materials,such as rare earth elements and platinum group metals.Several research groups stress the need for the agency on the part of African institutions to map out these valuable resources,understand their value and the economics and sustainability of their extraction,encourage local business,attract investment,and scrutinize proposals from potential international investors to get the best deals.A strong point of existing China-led geoscience development includes the Deep-time Digital Earth(DDE)program online computing platform and its artificial intelligence tool GeoGPT,which is being developed in partnership with Zhejiang Laboratory.These are being developed with strong China funding support for free and wide global access,with a particular focus on Africa.These advanced tools will help to place the agency of development squarely in the hands of African scientists and institutions.In summary,the following are recommended:(1)a more coordinated and strategic approach to China-led geoscience research in Africa;(2)an Africa-centered,geoscience funding initiative that concentrates on relevant topics to the continent such as critical minerals exploration and other geological resources,materials and processes and their health implications on the populations and ecosystems in general,as well as climate change and climate change resilience;and(3)continued support for China-led international initiatives that seek to increase the agency and capacity of Africa geoscience researchers,for example the Deep-time Digital Earth platform.展开更多
A new technique for the analysis of the three-dimensional collapse failure mechanism and the ground surface settlements for the large-diameter shield tunnels were presented.The technique is based on a velocity field m...A new technique for the analysis of the three-dimensional collapse failure mechanism and the ground surface settlements for the large-diameter shield tunnels were presented.The technique is based on a velocity field model using more different truncated solid conical blocks to clarify the multiblock failure mechanism.Furthermore,the shape of blocks between the failure surface and the tunnel face was considered as an entire circle,and the supporting pressure was assumed as non-uniform distribution on the tunnel face and increased with the tunnel embedded depth.The ground surface settlements and failure mechanism above large-diameter shield tunnels were also investigated under different supporting pressures by the finite difference method.展开更多
Based on the main characteristics of the tectonic-magmatic evolution of region and Tanlu fault zone,we have discussed ore-bearing magmatic rocks petrochemistry,strontium and lead isotope,and the source of ore-forming ...Based on the main characteristics of the tectonic-magmatic evolution of region and Tanlu fault zone,we have discussed ore-bearing magmatic rocks petrochemistry,strontium and lead isotope,and the source of ore-forming materials in Yinan skarn deposit in this paper.展开更多
With the deepening informationization of Resources&Environment Remote Sensing geological survey conducted,some potential problems and deficiency are:(1)shortage of unified-planed running environment;(2)inconsisten...With the deepening informationization of Resources&Environment Remote Sensing geological survey conducted,some potential problems and deficiency are:(1)shortage of unified-planed running environment;(2)inconsistent methods of data integration;and(3)disadvantages of different performing ways of data integration.This paper solves the above problems through overall planning and design,constructs unified running environment.展开更多
The chroma difference(DC)and lightness difference(DL)of 288 jadeite-jades with fine texture and even green color have been analyzed based on color difference formula CIE LAB in the uniform color space CIE 1976 L^~*a^~...The chroma difference(DC)and lightness difference(DL)of 288 jadeite-jades with fine texture and even green color have been analyzed based on color difference formula CIE LAB in the uniform color space CIE 1976 L^~*a^~*b^~*to evaluate their contribution to the color appearance and color difference(DE).展开更多
文摘The development of 3D geological models involves the integration of large amounts of geological data,as well as additional accessible proprietary lithological,structural,geochemical,geophysical,and borehole data.Luanchuan,the case study area,southwestern Henan Province,is an important molybdenum-tungsten-lead-zinc polymetallic belt in China.
文摘In order to investigate the vertical change of atmospheric particulates and it’s influence of the resident’s floor-choosing in Beijing,we take PM10 as the research object,the 18th building whichis 49.2 m in height of China University of Geosciences as the representative of resident building in Beijing,use the TSP/PM 10/PM2.5-2 particulate-sampling machine to sample PM10 on the south balcony of 1,4,8,12,16th floor respectively in 72 hours from 12 o’clock of January 31st to 12 o’clock of February 2nd,2007.
文摘As one of the provinces of highest economic growth in coastal China,Zhejiang Province is experiencing serious geological disasters during the past development of economy.The main kinds of geo-hazards include landslides,rock falls and debris-flows in Zhejiang Province,which are mainly induced by intensive rainfall during typhoon season or by long-term rainfall from May to June every year.
文摘Tuotuo River region(E91°-E93°,N33°-N 35°)is located in southwest Qinghai Province,P.R.China.It lies in one of the most important metallogenic belts in China—Northwest Sanjiang Metallogenic Belt,due to which Tuotuo River region can be of very high metal mineral potential not only in Qinghai Province but also nationwide.In this research,multisource data sets including geological,geochemical,geophysical,and remotely sensed images were integrated for mineral potential analysis with GIS technology.Under the guidance of regional metallogenic features and deposit-forming geologic anomaly theories,evidential layers were obtained from these sets.
文摘The Songliao Basin,the biggest Cretaceous oil-gas producing lacustrine basin in northeast China,contains the giant Daqing Oilfield situated in the central part.Lacustrine setting dominated the basin during the Cretaceous period.The SK-I drilling,located in the northern central part of the Songliao Basin,was completed in 2007 and is supposed to be a possible breakthrough in lake investigation.
文摘The significance of this paper is to understand the characteristics of Late Paleozoic depositional environment,lithofacies palaeogeography and its distribu-tion pattern in Henan Province,to resolve the issue of basic geological,exploration and prospecting services for the region.
文摘Jehol Biota in western Liaoning and northern Hebei has been a hot topic of global concern,a large number of exquisite fossils were found in Yixian group Sihetun,such as Sinosauropteryx,Protarchaeopteryx,Caudipteryx and Confuciusornis.Scientists consider the discovering of Sinosauropteryx discovered so far as the earliest ancestor of birds.
文摘There are more than 30 fossil-dominated geoparks established in China.Most of them are of high scientific values.Compared to landscape-dominated geoparks,the fossil-dominated ones generally lack of charming natural sceneries,but the abundant and exquisite preserved fossils in geoparks are very attractive to the public.In order to protect and exploit these fossils,the evaluation plays an important role in the geopark construction.Ningcheng geopark is famous for the Mesozoic Daohugou biota.The fossil assemblage is different from Jehol biota,which attracts many experts.
文摘Pyrite is a ubiquitous authigenic mineral in modern anoxic sediments and occurs in ancient sedimentary rocks.Study of sedimentary pyrite morphology,which can provide useful information on deposition environments and early diagenetic processes,has become an important aspect for reconstruction of palaeoenviroment.The Upper Cretaceous Qingshankou Formation Unit 1(K<sub>2</sub>qn<sup>1</sup>)lithology。
文摘The Songliao basin in northeast China is a Mesozoic rift basin characterized by Mesozoic and Cenozoic hydrocarbon systems.The Changling fault depression located in the south of the Songliao Basin.
文摘Heterogeneity of permeability in fractured media is a hot research topic in hydrogeology and numerous approaches had been proposed to characterize heterogeneity in the past several decades.However,little attention has been paid to correlate permeabilityheterogeneity with geological conditions.In thisstudy,several causes of permeability heterogeneity,i.e.lithology,tectonism,and depth,are identified.Theunit absorption values(denoted as@),which areresults obtained from the packer test,are employed torepresent the permeability.
文摘The eastem Tianshan metallogenic belt(E92°-96°,N41°-43°),one of the most important Cu-Ni-Au mineral districts in China,is located at the conjunction of the Siberian plate and Tarim plate.The fuzzy weight of evidence method(FWofE)is applied to predict and delineate the most prospective areas for copper resource based on the available ore-related geological and geochemical data.
文摘Columnar joints are regular columnar primary magmatic structure with polygonal cross sections developed in volcanic rocks which are commonly induced in cooling basaltic larva with low viscosity and high fluidity.In recent years,typical columnar joints in acidic volcanic rocks have been discovered in many other regions in China,including Quzhou area in Zhejiang Province,Siping and Shanmen area in Jilin Province.
文摘Located at Songliao Basin in the Northeastern China,SK-1 is the first Cretaceous terrestrial scientific drilling in the world.This program recovered the Middle to Upper Cretaceous strata of Songliao Basin which includes,from bottom to top,the Quantou,Qingshankou,Yaojia,Nenjiang,Mingshui and Sifangtai Formations.
基金National Natural Science Foundation of China Key Project(No.42050103)Higher Education Disciplinary Innovation Program(No.B25052)+2 种基金the Guangdong Pearl River Talent Program Innovative and Entrepreneurial Team Project(No.2021ZT09H399)the Ministry of Education’s Frontiers Science Center for Deep-Time Digital Earth(DDE)(No.2652023001)Geological Survey Project of China Geological Survey(DD20240206201)。
文摘Since the beginning of the 21st century,advances in big data and artificial intelligence have driven a paradigm shift in the geosciences,moving the field from qualitative descriptions toward quantitative analysis,from observing phenomena to uncovering underlying mechanisms,from regional-scale investigations to global perspectives,and from experience-based inference toward data-and model-enabled intelligent prediction.AlphaEarth Foundations(AEF)is a next-generation geospatial intelligence platform that addresses these changes by introducing a unified 64-dimensional shared embedding space,enabling-for the first time-standardized representation and seamless integration of 12 distinct types of Earth observation data,including optical,radar,and lidar.This framework significantly improves data assimilation efficiency and resolves the persistent problem of“data silos”in geoscience research.AEF is helping redefine research methodologies and fostering breakthroughs,particularly in quantitative Earth system science.This paper systematically examines how AEF’s innovative architecture-featuring multi-source data fusion,high-dimensional feature representation learning,and a scalable computational framework-facilitates intelligent,precise,and realtime data-driven geoscientific research.Using case studies from resource and environmental applications,we demonstrate AEF’s broad potential and identify emerging innovation needs.Our findings show that AEF not only enhances the efficiency of solving traditional geoscientific problems but also stimulates novel research directions and methodological approaches.
文摘At the 19th G20 Summit in Brazil in November 2024,China promoted the development of sustainable solutions to climate change,biodiversity loss,and environmental pollution.This continued the theme of the 2016 G20 Hangzhou Summit,at which China placed development at the center of the G20’s macroeconomic policy coordination for the first time,adopting the G20 Action Plan on the United Nations 2030 Agenda for Sustainable Development and the G20 Initiative on Supporting Industrialization in Africa and Least Developed Countries.In Brazil,China announced actions on advancing modernization in Africa over the next three years with a Chinese commitment of RMB360 billion yuan in financial support.In this article,we examine the potential role of geoscience research and practice in development,particularly in the sustainable use of natural resources,the prevention of climate change impacts,as well as mitigation of geo-hazards and their health implications,indicating the areas where China’s geoscience for Africa is strong and where it requires more effort.We find that although China is the world’s leading publisher of scientific papers,its contribution to geoscience in Africa(the globe’s fastest-growing economic area),as shown by bibliometric research,appears to be rather small and inconsistent with the research priorities of Africa.Amongst the priorities for geoscience research in Africa,which are not addressed substantially by the research conducted so far,are sustainable mineral and hydrocarbon development,hydrology and hydrogeology,climate change and resilience,natural hazards,medical geology,agrominerals,and geoscience education and training.A particular opportunity for African nations is the presence of critical minerals-minerals needed for the energy transition and for batteries for electric cars in particular.Africa is well-endowed with many of these critical materials,such as rare earth elements and platinum group metals.Several research groups stress the need for the agency on the part of African institutions to map out these valuable resources,understand their value and the economics and sustainability of their extraction,encourage local business,attract investment,and scrutinize proposals from potential international investors to get the best deals.A strong point of existing China-led geoscience development includes the Deep-time Digital Earth(DDE)program online computing platform and its artificial intelligence tool GeoGPT,which is being developed in partnership with Zhejiang Laboratory.These are being developed with strong China funding support for free and wide global access,with a particular focus on Africa.These advanced tools will help to place the agency of development squarely in the hands of African scientists and institutions.In summary,the following are recommended:(1)a more coordinated and strategic approach to China-led geoscience research in Africa;(2)an Africa-centered,geoscience funding initiative that concentrates on relevant topics to the continent such as critical minerals exploration and other geological resources,materials and processes and their health implications on the populations and ecosystems in general,as well as climate change and climate change resilience;and(3)continued support for China-led international initiatives that seek to increase the agency and capacity of Africa geoscience researchers,for example the Deep-time Digital Earth platform.
基金Project(41202220) supported by the National Natural Science Foundation of ChinaProject(2011YYL034) supported by the Fundamental Research Funds for the Central Universities,China
文摘A new technique for the analysis of the three-dimensional collapse failure mechanism and the ground surface settlements for the large-diameter shield tunnels were presented.The technique is based on a velocity field model using more different truncated solid conical blocks to clarify the multiblock failure mechanism.Furthermore,the shape of blocks between the failure surface and the tunnel face was considered as an entire circle,and the supporting pressure was assumed as non-uniform distribution on the tunnel face and increased with the tunnel embedded depth.The ground surface settlements and failure mechanism above large-diameter shield tunnels were also investigated under different supporting pressures by the finite difference method.
文摘Based on the main characteristics of the tectonic-magmatic evolution of region and Tanlu fault zone,we have discussed ore-bearing magmatic rocks petrochemistry,strontium and lead isotope,and the source of ore-forming materials in Yinan skarn deposit in this paper.
文摘With the deepening informationization of Resources&Environment Remote Sensing geological survey conducted,some potential problems and deficiency are:(1)shortage of unified-planed running environment;(2)inconsistent methods of data integration;and(3)disadvantages of different performing ways of data integration.This paper solves the above problems through overall planning and design,constructs unified running environment.
文摘The chroma difference(DC)and lightness difference(DL)of 288 jadeite-jades with fine texture and even green color have been analyzed based on color difference formula CIE LAB in the uniform color space CIE 1976 L^~*a^~*b^~*to evaluate their contribution to the color appearance and color difference(DE).
