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文章通过对粤西罗定盆地南京垌地区地层、岩性、构造等地质特征及物化探异常特征的分析,研究南京垌地区的金成矿条件,研究表明南京垌地区地质构造环境有利于金成矿,指出了找矿标志及该区的找矿前景。 相似文献
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胶东地区蕴藏丰富的矿石资源。分析胶东地区的地质特征,其东南部地区和胶北隆起东北部的连接部分,是属于华北地区的东南部;胶东地区的地质构造主要是断层、褶皱;区域内露出岩浆岩主要是中生代燕山中期玲珑序列。而胶东地区的断裂生成的矿石地质和具体的找矿方向使胶东具有良好的找矿前景。 相似文献
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通过对玉门某地区开展1∶50000地面高精度磁法测量,初步查明了工作区磁场分布特征,结果表明,高精度磁法对分析磁异常与地质构造及矿产的关系、寻找一定规模的弱磁性矿产(包括黑色金属、有色金属、贵金属矿产等)和进行间接找矿、研究成矿地质构造、寻找隐伏矿产和进行成矿预测,圈定找矿靶区有较好的效果。本次1∶5万高精度磁法根据地质背景及磁场变化特征划分了三个磁场分区,划定断裂构造30条,圈定局部磁异常7处。为该区地质找矿提供了可靠的地球物理依据。 相似文献
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Rare Earths of Magmatic Rocks in Yanshanian Stage in Adjacent Region of Anhui and Jiangxi Provinces, Jiangnan Uplift 总被引:2,自引:0,他引:2
The geochemical characteristics of rare earth elements of magmatic rocks of Yanshanian stage were studied in the south of Anhui Province and northeast of Jiangxi Province, Jiangnan Uplift. The result shows that the magnmtic rocks of Yanshanian stage in the south of Anhui Province are the typical crust source type and those in the northeast of Jiangxi Province have the characteristics of mantle source type. So the polymetal deposits having relation to the magmatic rocks of Yanshanian stage in the northeast of Jiangxi Province were developed better than those in the south of Anhui Province. The research results of the rare earth elements are confirmed by the studies of geophysics, tectonic setting and stable isotope at the same time. It also indicates that the rare earth elements are the effective approach to tracing the material sources of magmatic rocks. 相似文献
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东北老工业基地曾是新中国工业的摇篮,为建成独立、完鼙的工业体系和国民经济体系.为国家的改革开放和现代化建设做出了历史性的重大贡献。但是.长期以来.由于受到体制性因素和结构性矛盾的影响,东北老工业基地经济发展相对滞后。东北老工业基地振兴要着力培育东北老工业基地可持续发展的能力。可持续发展战略。是要使各方面的发展目标,尤其是社会、经济与生态、环境的目标相协调。振兴东北老工业基地可持续发展战略.首先应加强生存能力建设;其次,加强发展能力建设和生态环境的能力建设;还要加强科技创新能力建设;最后,应该加强政府调控能力建设。 相似文献
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别鲁金矿属于西准噶尔金矿带的组成部分,金矿成矿条件十分有利,它受控于海西中晚期中酸性岩浆岩,成矿空间,成矿时间,物质成分上具有密切的关联,是成矿的母岩,矿体直接赋存于北北东向断裂中,控矿断裂发育,矿脉具尖灭再现分支复合膨大缩小的特征,矿体虽不连续,但较富,自然金矿物发育,成色较高。地球化学微量元素,稀土元素及稳定同位素等特征,证明金矿与中酸性岩浆岩有密切的成因关系。 相似文献
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湖南省溆浦县境内金锑资源较为丰富,存在有3条沿NE向展布的含金或金锑矿化带,属雪峰山金锑钨成矿带的一部分。南江坪-龙王江-雁鹅界金锑矿化带中有4个重点矿化地段,通过对该矿化带内的地层、岩性、构造和赋矿层位分析,认为在4个重点矿化地段中存在有可供开采的工业矿体。 相似文献
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While away from their families and communities, migrant workers often engage in behavior which puts them at increased risk of HIV infection. Such behavior includes drug and alcohol use, and sex with multiple partners or prostitutes. A significant proportion of northeast Thailand's rural population works away from home in either Thailand or abroad for at least part of the year. The risk behavior of this subpopulation while away from home and their subsequent behavior upon their return home has contributed to the spread of HIV in the region. In the "Letters to Loved Ones" program, women in northeast Thailand write letters to their loved ones who are working away from home to remind them of the risks of HIV/AIDS and teach them about prevention. This program and other AIDS prevention strategies grew out of the Multisectoral AIDS Prevention Strategy in Northeast Thailand. Through the program, a considerable number of women can now play important roles in sexual negotiation and health education for themselves, their families, and their communities. 相似文献