重庆地面最高气温与最大风速年极值的渐近分布   总被引：3，自引：0，他引：3  

孟庆珍  王增武  冯新  梁秋枫 《成都信息工程学院学报》2004,19(3):436-441

利用重庆1951-1990年间地面最高气温和1956-1990年间地面最大风速年极值的记录,采用韦伯分布和耿贝尔分布分别对其渐近分布进行拟合.通过统计推断,找出重庆地面最高气温和地面最大风速年极值遵循的最佳渐近分布--韦伯分布.  相似文献   

临猗5.0级地震前后品质因子值变化特征研究     

王卫东  张永志  杜长娥 《地球科学与环境学报》2005,27(1):70-71,79

利用西安数字地震遥测台网记录的数字地震资料，采用P波初动半周期残差法求得1998年7月临猗5．0级地震前后不同路径的Q(品质因子)值变化，发现在地震发生前Q值为87～203，震后Q值为67～164，震前震中区附近出现明显的高Q值异常。结果表明，地震前的高Q值异常可以作为地震预测的一种手段。  相似文献   

The Role of Fracture Structure in Leachate Pollution at Landfills： A Case Study of a Landfill in Chongqing City     

LUO Yunju  LIU Dongyan  LI Xiulan  ZHU Zhengwei 《《地质学报》英文版》2008,82(5)

This paper studies a landfill where there are three faults running through.As serious pollution has occurred to the geological environment,the landfill is to be closed up and renovated.The paper aims to explore the role of fracture structure in leachate pollution at the landfill.The research was carried out in several stages.First,mathematical models of the pre-renovation landfill with three faults running through and the landfill after renovation were established.And then,the boundary conditions and parameters of the two mathematical models were determined.The groundwater level of the landfills was simulated in order to modify the two mathematical models.As a result,a feasible mathematical model was achieved.Based on this model,a comparison was made of the COD concentration variations in the inside leachate and outside leachate between the two landfills. Accordingly,the impacts of the fracture structure on the pollution of leachate at the landfills could be identified.The study results show that while faults contribute to the migration of leachate,they also serve as a confluence of leachate,thus further deteriorating the environment.The COD concentrations of the inside leachate and the outside leacbate of the pre-renovation landfill are respectively 800 mg/L and 220 mg/L higher than those of the post.renovation landfill.Therefore,measures must be taken to handle the leachate seepage in areas where there are faults as well as the neighboring areas so as to get the environmental pollution under control.  相似文献   

The Role of Fracture Structure in Leachate Pollution at Landfills: A Case Study of a Landfill in Chongqing City     

LUO Yunju  LIU Dongyan  LI Xiulan  ZHU Zhengwei 《《地质学报》英文版》2008,82(5):1020-1026

This paper studies a landfill where there are three faults running through. As serious pollution has occurred to the geological environment, the landfill is to be closed up and renovated. The paper aims to explore the role of fracture structure in leachate pollution at the landfill. The research was carried out in several stages. First, mathematical models of the pre-renovation landfill with three faults running through and the landfill after renovation were established. And then, the boundary conditions and parameters of the two mathematical models were determined. The groundwater level of the landfills was simulated in order to modify the two mathematical models. As a result, a feasible mathematical model was achieved. Based on this model, a comparison was made of the COD concentration variations in the inside leachate and outside leachate between the two landfills. Accordingly, the impacts of the fracture structure on the pollution of leachate at the landfills could be identified. The study results show that while faults contribute to the migration of ieachate, they also serve as a confluence of leachate, thus further deteriorating the environment. The COD concentrations of the inside leachate and the outside leachate of the pre-renovation landfill are respectively 800 mg/L and 220 mg/L higher than those of the post-renovation landfill. Therefore, measures must be taken to handle the ieachate seepage in areas where there are faults as well as the neighboring areas so as to get the environmental pollution under control.  相似文献   

抗战内迁北碚的中央地质调查所与中国西部科学院          下载免费PDF全文

侯江 《江苏地质》2008,32(4):317-323

抗战时期,中央地质调查所内迁重庆北碚,中国西部科学院帮助其在纷乱的战时安定下来,开始相对稳定的科研工作,主要在西部地区开展调查、从事科研。地调所的科研血脉得以传承,成为战时国内矿产资源调查研究中心。  相似文献   

《全国矿产资源利用现状调查省级实施方案》审查会在重庆召开     

厉建华  肖书明 《地质学刊》2008,32(2):150-150

《全国矿产资源利用现状调查省级实施方案》审查会议于2008年3月24目～26日在重庆召开。会议审查了全国各省（市、自治区）矿产资源利用现状调查实施方案,对矿区储量核查技术要求进行讨论,并就各省级实施方案的修改、完善提出具体要求。  相似文献   

本刊加入“万方数据-数字化期刊群”的声明     

《中国地质灾害与防治学报》2006,17(3):31-31

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1∶25万开县幅、万县幅地质调查成果与进展     

《沉积与特提斯地质》2005,25(1):138-140

原定为青白口纪的龙潭河组时代应属早南华世;在志留系顶部发现一套岩层,认为存在中泥盆统云台观组;万县与通江两地层小区的下-中侏罗统存在相变过渡关系;城巴断裂以北分布较小型侵入岩体.重点调查研究了具重要控矿作用的城巴断裂和直接影响三峡库区稳定性的七曜山断裂带新构造运动.  相似文献   

石油：不要喊"狼来了"——-石油时代远未过去   总被引：1，自引：0，他引：1  

侯春梅  张志强 《地球科学进展》2005,20(1):113-114

第一次世界大战后，国内石油枯竭的预测震动了美国。1919年，包括美国地质调查局(USGS)局长在内的许多人发表了充满忧虑的预测：美国的石油将在9年内耗尽。面对这种甚嚣尘上的歇斯底里般的叫嚣，1924年美国总统古利格(Coolidge)设立了“联邦石油保护委员会”(Federal Oil Consedation Board)，起草相关法规来保护国家的自然资源。  相似文献   

长春净月台昆仑山8.1级地震体应变观测报告     

刘冰冰 《地壳构造与地壳应力》2002,(1):59-59

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