锡林郭勒金成矿带颇具找矿潜力,文章总结了成矿带的地球物理、地球化学特征,采用数理统计分析方法,确定了矿床元素轴向分带序列为:As Sb Hg Bi Li Sr Ba Ag Pb Au Cu Zn Sn V Co Cr Ni Ti Mo W,前缘晕元素为As,Sb,Hg,Bi,主成矿元素为A... 锡林郭勒金成矿带颇具找矿潜力,文章总结了成矿带的地球物理、地球化学特征,采用数理统计分析方法,确定了矿床元素轴向分带序列为:As Sb Hg Bi Li Sr Ba Ag Pb Au Cu Zn Sn V Co Cr Ni Ti Mo W,前缘晕元素为As,Sb,Hg,Bi,主成矿元素为Au,Cu,Zn,尾晕元素为Ti,Mo,W。据轴向分带特征,确定金矿体剥蚀程度的判别指标为As×Sb×Bi/Ti×Mo×W。根据研究成果部署的深部钻探工程取得了较好的找矿效果。展开更多
Mine accidents and injuries are complex and generally characterized by several factors starting from personal to technical, and technical to social characteristics.In this study, an attempt has been made to identify t...Mine accidents and injuries are complex and generally characterized by several factors starting from personal to technical, and technical to social characteristics.In this study, an attempt has been made to identify the various factors responsible for work related injuries in mines and to estimate the risk of work injury to mine workers.The prediction of work injury in mines was done by a step-by-step multivariate logistic regression modeling with an application to case study mines in India.In total, 18 variables were considered in this study.Most of the variables are not directly quantifiable.Instruments were developed to quantify them through a questionnaire type survey.Underground mine workers were randomly selected for the survey.Responses from 300 participants were used for the analysis.Four variables, age, negative affectivity, job dissatisfaction, and physical hazards, bear significant discriminating power for risk of injury to the workers, comparing between cases and controls in a multivariate situation while controlling all the personal and socio-technical variables.The analysis reveals that negatively affected workers are 2.54 times more prone to injuries than the less negatively affected workers and this factor is a more important risk factor for the case-study mines.Long term planning through identification of the negative individuals, proper counseling regarding the adverse effects of negative behaviors and special training is urgently required.Care should be taken for the aged and experienced workers in terms of their job responsibility and training requirements.Management should provide a friendly atmosphere during work to increase the confidence of the injury prone miners.展开更多
To reveal the impact of mining on bacterial ecology around mining area,bacterial community and geochemical characteristics about Dabaoshan Mine(Guangdong Province,China)were studied.By amplified ribosomal DNA restrict...To reveal the impact of mining on bacterial ecology around mining area,bacterial community and geochemical characteristics about Dabaoshan Mine(Guangdong Province,China)were studied.By amplified ribosomal DNA restriction analysis and phylogenetic analysis,it is found that mining pollution greatly impacts the bacterial ecology and makes the habitat type of polluted environments close to acid mine drainage(AMD)ecology.The polluted environment is acidified so greatly that neutrophil and alkaliphilic microbes are massively dead and decomposed.It provided organic matters that can make Acidiphilium sp.rapidly grow and become the most bacterial species in this niche.Furthermore,Acidithiobacillus ferrooxidans and Leptospirillum sp.are also present in this niche.The amount of Leptospirillum sp.is far more than that of Acidithiobacillus ferrooxidans,which indicates that the concentration of toxic ions is very high.The conclusions of biogeochemical analysis and microbiological monitor are identical. Moreover,because the growth of Acidithiobacillus ferrooxidans and Leptospirillum sp.depends on ferrous iron or inorganic redox sulfur compounds which can be supplied by continual AMD,their presence indicates that AMD still flows into the site.And the area is closer to the outfalls of AMD,their biomasses would be more.So the distinction of their biomasses among different areas can help us to find the effluent route of AMD.展开更多
In 2015, a previously unknown manuscript was discovered in the Nanjing Library. It contained a Chinese mining and metallurgy handbook, and was identified as a copy of the Kunyu gezhi 坤輿格致, known as the lost Chines...In 2015, a previously unknown manuscript was discovered in the Nanjing Library. It contained a Chinese mining and metallurgy handbook, and was identified as a copy of the Kunyu gezhi 坤輿格致, known as the lost Chinese translation of Georgius Agricola’s(1494–1555) De re metallica(1556) by Jesuit Adam Schall von Bell(1592–1666). A closer look at the text, however, reveals that, besides parts of Agricola’s book, content by at least four other European authors was included: Vannoccio Biringuccio(1480–1539), Modestinus Fachs(?–before 1595), Lazarus Ercker(1528/30–1594), and José de Acosta(1539/40–1599/1600). This study demonstrates how their books became available in China, why they were selected as sources for the Kunyu gezhi, and how they were eventually used and incorporated. From this, it becomes apparent that Schall and his collaborators spared no effort to conduct this ambitious knowledge transfer project, and to present European technology at its best to the emperor.展开更多
Social issues are increasingly recognized as significant inhibitors to mineral development projects. Increasingly, social risk is being recognized as a key factor determining the success of a mineral investment. Group...Social issues are increasingly recognized as significant inhibitors to mineral development projects. Increasingly, social risk is being recognized as a key factor determining the success of a mineral investment. Groups opposed to a mine for social or political reasons otten use environmental impacts, real or perceived, to prevent mine development. These risk factors depend largely on cultural perceptions of mining activities and must be understood as such in order to be appropriately managed. A first step to addressing social issues is inclusive, transparent and meaningful engagement of stakeholders. This process allows stakeholders to understand what the other parties value in order to collectively establish a common currency for development and the creation of mutual value. Expanding the scope of benefits and values a mine can bring is of increasing importance to mining companies who typically consult outside specialists remote from the mine site and late in the development timeline for this purpose. Training technical staff, engineers and geologists, who make initial and ongoing contact with local interests, in a holistic approach to mine development is crucial to successful and economic mineral development projects. Further extending this conversation to the genera/ public, media governments and non-govemmental organizations is a necessary step in developing a meaningful discourse on the benefit of mining activities.展开更多
The exploitation of coal resources inevitably affects, to different degrees, arable land resources and impacts the socio-economic development in mining areas. Therefore it is of great practical importance to probe the...The exploitation of coal resources inevitably affects, to different degrees, arable land resources and impacts the socio-economic development in mining areas. Therefore it is of great practical importance to probe the rules of the effect from coal resource exploration on arable land. Suitable and effective measures to compensate for damaged to and loss of arable land resources should be taken on the basis of carrying out green mining and reducing damage to limited arable land resources. We have used GIS in simulating the effect of coal resource exploration on arable land. In light of our simulation of the space-time spectrum, the effect is analyzed. Given the socio-economic development conditions of a mining area, specified rational amounts and opportunities for compensation to arable land in mining areas are explored. Finally, from a policy perspective, relevant proposals for rational arable land resource compensation are proposed to facilitate the coordinated development between coal resource exploitation and socio-economy development in mining areas.展开更多
The land disturbance and its ecological impacts are the most significant one in the environmental problems which arise from increase of coal mining,processing and utilization. And the environmental impact assessment a...The land disturbance and its ecological impacts are the most significant one in the environmental problems which arise from increase of coal mining,processing and utilization. And the environmental impact assessment as one of the most powerful planning tools has been playing a good part in the environment protection in China. This paper ,based on EIA experience, discribes the methods of identification, prediction and analysis of the impacts of mining subsidence,the operational procedures and mitigating measures likely to take.展开更多
China MOC:steel prices to keep low in China China Ministry of Commerce expects domestic steel prices to keep low in the near future amid the soft market demand and exces- sive reserves of steel plants. Steel prices fr...China MOC:steel prices to keep low in China China Ministry of Commerce expects domestic steel prices to keep low in the near future amid the soft market demand and exces- sive reserves of steel plants. Steel prices from November 10 to 19 fell by 2.7%,0.9% age point more than the drop rate of the previous week.展开更多
文摘 锡林郭勒金成矿带颇具找矿潜力,文章总结了成矿带的地球物理、地球化学特征,采用数理统计分析方法,确定了矿床元素轴向分带序列为:As Sb Hg Bi Li Sr Ba Ag Pb Au Cu Zn Sn V Co Cr Ni Ti Mo W,前缘晕元素为As,Sb,Hg,Bi,主成矿元素为Au,Cu,Zn,尾晕元素为Ti,Mo,W。据轴向分带特征,确定金矿体剥蚀程度的判别指标为As×Sb×Bi/Ti×Mo×W。根据研究成果部署的深部钻探工程取得了较好的找矿效果。
文摘Mine accidents and injuries are complex and generally characterized by several factors starting from personal to technical, and technical to social characteristics.In this study, an attempt has been made to identify the various factors responsible for work related injuries in mines and to estimate the risk of work injury to mine workers.The prediction of work injury in mines was done by a step-by-step multivariate logistic regression modeling with an application to case study mines in India.In total, 18 variables were considered in this study.Most of the variables are not directly quantifiable.Instruments were developed to quantify them through a questionnaire type survey.Underground mine workers were randomly selected for the survey.Responses from 300 participants were used for the analysis.Four variables, age, negative affectivity, job dissatisfaction, and physical hazards, bear significant discriminating power for risk of injury to the workers, comparing between cases and controls in a multivariate situation while controlling all the personal and socio-technical variables.The analysis reveals that negatively affected workers are 2.54 times more prone to injuries than the less negatively affected workers and this factor is a more important risk factor for the case-study mines.Long term planning through identification of the negative individuals, proper counseling regarding the adverse effects of negative behaviors and special training is urgently required.Care should be taken for the aged and experienced workers in terms of their job responsibility and training requirements.Management should provide a friendly atmosphere during work to increase the confidence of the injury prone miners.
基金Project(50621063)supported by the Science Fund for Creative Research Groups of ChinaProject(2004CB619201)supported by the Major State Basic Research Development Program of China
文摘To reveal the impact of mining on bacterial ecology around mining area,bacterial community and geochemical characteristics about Dabaoshan Mine(Guangdong Province,China)were studied.By amplified ribosomal DNA restriction analysis and phylogenetic analysis,it is found that mining pollution greatly impacts the bacterial ecology and makes the habitat type of polluted environments close to acid mine drainage(AMD)ecology.The polluted environment is acidified so greatly that neutrophil and alkaliphilic microbes are massively dead and decomposed.It provided organic matters that can make Acidiphilium sp.rapidly grow and become the most bacterial species in this niche.Furthermore,Acidithiobacillus ferrooxidans and Leptospirillum sp.are also present in this niche.The amount of Leptospirillum sp.is far more than that of Acidithiobacillus ferrooxidans,which indicates that the concentration of toxic ions is very high.The conclusions of biogeochemical analysis and microbiological monitor are identical. Moreover,because the growth of Acidithiobacillus ferrooxidans and Leptospirillum sp.depends on ferrous iron or inorganic redox sulfur compounds which can be supplied by continual AMD,their presence indicates that AMD still flows into the site.And the area is closer to the outfalls of AMD,their biomasses would be more.So the distinction of their biomasses among different areas can help us to find the effluent route of AMD.
基金This research is part of“Translating Western Science,Technology and Medicine to Late Ming China:Convergences and Divergences in the Light of the Kunyu gezhi坤輿格致(Investigations of the Earth’s Interior1640)and the Taixi shuifa泰西水法(Hydromethods of the Great West1612),”a project supported by the German Research Foundation(DFG)from 2018 to 2021.
文摘In 2015, a previously unknown manuscript was discovered in the Nanjing Library. It contained a Chinese mining and metallurgy handbook, and was identified as a copy of the Kunyu gezhi 坤輿格致, known as the lost Chinese translation of Georgius Agricola’s(1494–1555) De re metallica(1556) by Jesuit Adam Schall von Bell(1592–1666). A closer look at the text, however, reveals that, besides parts of Agricola’s book, content by at least four other European authors was included: Vannoccio Biringuccio(1480–1539), Modestinus Fachs(?–before 1595), Lazarus Ercker(1528/30–1594), and José de Acosta(1539/40–1599/1600). This study demonstrates how their books became available in China, why they were selected as sources for the Kunyu gezhi, and how they were eventually used and incorporated. From this, it becomes apparent that Schall and his collaborators spared no effort to conduct this ambitious knowledge transfer project, and to present European technology at its best to the emperor.
文摘Social issues are increasingly recognized as significant inhibitors to mineral development projects. Increasingly, social risk is being recognized as a key factor determining the success of a mineral investment. Groups opposed to a mine for social or political reasons otten use environmental impacts, real or perceived, to prevent mine development. These risk factors depend largely on cultural perceptions of mining activities and must be understood as such in order to be appropriately managed. A first step to addressing social issues is inclusive, transparent and meaningful engagement of stakeholders. This process allows stakeholders to understand what the other parties value in order to collectively establish a common currency for development and the creation of mutual value. Expanding the scope of benefits and values a mine can bring is of increasing importance to mining companies who typically consult outside specialists remote from the mine site and late in the development timeline for this purpose. Training technical staff, engineers and geologists, who make initial and ongoing contact with local interests, in a holistic approach to mine development is crucial to successful and economic mineral development projects. Further extending this conversation to the genera/ public, media governments and non-govemmental organizations is a necessary step in developing a meaningful discourse on the benefit of mining activities.
基金Project 50774080 supported by the National Natural Science Foundation of China
文摘The exploitation of coal resources inevitably affects, to different degrees, arable land resources and impacts the socio-economic development in mining areas. Therefore it is of great practical importance to probe the rules of the effect from coal resource exploration on arable land. Suitable and effective measures to compensate for damaged to and loss of arable land resources should be taken on the basis of carrying out green mining and reducing damage to limited arable land resources. We have used GIS in simulating the effect of coal resource exploration on arable land. In light of our simulation of the space-time spectrum, the effect is analyzed. Given the socio-economic development conditions of a mining area, specified rational amounts and opportunities for compensation to arable land in mining areas are explored. Finally, from a policy perspective, relevant proposals for rational arable land resource compensation are proposed to facilitate the coordinated development between coal resource exploitation and socio-economy development in mining areas.
文摘The land disturbance and its ecological impacts are the most significant one in the environmental problems which arise from increase of coal mining,processing and utilization. And the environmental impact assessment as one of the most powerful planning tools has been playing a good part in the environment protection in China. This paper ,based on EIA experience, discribes the methods of identification, prediction and analysis of the impacts of mining subsidence,the operational procedures and mitigating measures likely to take.
文摘China MOC:steel prices to keep low in China China Ministry of Commerce expects domestic steel prices to keep low in the near future amid the soft market demand and exces- sive reserves of steel plants. Steel prices from November 10 to 19 fell by 2.7%,0.9% age point more than the drop rate of the previous week.
