浅谈利用Google Earth结合MapGis软件制作地形图方法     

路魏魏  李晴  田吉山  曾华栋  黄敏  宋鹏 《城市地质》2014,(3):53-55

利用Google Earth的三维模拟功能,通过不同海拔平面与地表的接触线来获得等高线,结合MapGis的编辑功能即可形成矢量化的地形图。经与实测地形图对比,两者山头、山谷、山脊、鞍部、高程及等高线形态基本相同,可做为野外工作及其它对地形图精度要求不高工作的参考资料。  相似文献   

可控源法在海阳市郭城地区鑫泰金矿床成矿规律中的应用     

郭国强  郭朋  张超  何玉海  于义文  陈大磊 《山东地质》2014,(6):74-76

可控源音频大地电磁法（CSAM T法）是一种利用人工场源研究地层、构造等深部地质特征问题的新技术新方法。在山东省海阳市郭城地区鑫泰金矿床的应用研究表明,CSAM T 法可以较好地用于确定矿体的产状和大致地层结构,在矿体成矿规律研究方面具有较为突出的应用效果。  相似文献   

新修订《济南市国有土地收购储备办法》浅析     

唐金波  郑鹏  张庆利  高代华 《山东地质》2014,(5):99-101

近期,济南市对已经实施了5年的《济南市国有土地收购储备办法》进行了重新修订,并制定了与之配套实施的相关规范性文件。该文分析总结了济南市修订土地收购储备规章的背景、依据和主要内容,以期对更好理解和执行新的规章有所帮助。  相似文献   

江西武宁县石门寺钨铜矿区风化作用过程中W、Cu等元素的表生地球化学行为(之一)     

胡小梅  龚鹏  李娟  闭向阳 《地质通报》2014,33(5):741-750

以江西省武宁县石门寺钨铜矿区燕山期和晋宁期岩体风化作用过程中W、Cu等元素的表生地球化学行为为研究对象,通过反映风化程度的化学风化指数CIA、风化作用过程中组分得失的估算、不同介质中W、Cu等成矿元素的含量变化及大离子亲石元素表生地球化学行为等方法的研究表明,石门寺钨铜矿区2个时期岩体元素淋失与风化强度有关,土壤剖面中碱金属、碱土金属元素大量淋失,而W、Cu等成矿元素在土壤B层中显著富集;从岩石到土壤、再到水系沉积物风化过程中,W、Cu等成矿元素含量逐渐升高,为此,一级水系沉积物和B层土壤是赣北九岭W、Sn、Cu、Mo多金属矿集区地球化学找矿的绝佳采样介质,是矿集区内找矿新突破的有效手段。  相似文献   

内蒙古莲花山铜矿区花岗闪长斑岩LA-ICP-MS锆石U-Pb年龄     

王忠禹  孙景贵  白令安  柴鹏  古阿雷  赵克强  李玉洁 《地质通报》2014,33(9):1320-1325

为了精确厘定莲花山铜矿的成矿时代,在前人研究的基础上,开展了与成矿关系密切的花岗闪长斑岩锆石U-Pb定年测定。实验结果共获得4组年龄数据,第1组有1个锆石,206Pb/238U年龄为343Ma±2Ma;第2组1个锆石,206Pb/238U年龄为264Ma±2Ma;第3组有1个锆石,206Pb/238U年龄为256Ma±2Ma;第4组有17个锆石,206Pb/238U年龄在240~249Ma之间,206Pb/238U年龄加权平均值为246.4Ma±1.2Ma(N=17)。结合所测锆石的CL图像特征,确定花岗闪长斑岩就位发生在晚二叠世—早三叠世。  相似文献   

湘中及湘东南地区上泥盆统佘田桥组页岩气勘探前景     

李国亮  王先辉  柏道远  罗鹏 《中国煤炭地质》2014,(10):33-37,72

湘中及湘东南地区泥盆纪佘田桥组具有良好的页岩气成藏条件,为页岩气勘探远景区。选取地质条件优越、页岩气特征明显的泥盆纪佘田桥组含气页岩作为主要研究对象,对页岩气储气特征和勘探开发潜力进行了分析。研究表明：含气页岩层分布面积广、有机碳含量高（TOC均值0.61%）、热演化程度高（Ro均值2.71%）,低孔低渗（孔隙度为0.7%,渗透率小于0.04×10^-3μm2）,且吸附能力强。含气页岩层厚度展布在凹陷盆地形成独特的“中心薄边缘厚”格局,结合其成藏特征和物化指数,划分出页岩气潜力较大的四个有利区。  相似文献   

Immobilization of phosphorus,copper, zinc and arsenic in swine manure by activated red mud   总被引：2，自引：0，他引：2  

Xianjia Peng  Chuan Liang  Li Shi 《Environmental Earth Sciences》2014,71(5):2005-2014

Red mud (RM), the solid waste of alumina industry, is high in silicon, calcium, aluminum and iron oxides. In this study, RM was activated by heat treatment at different temperatures and characterized with BET nitrogen gas sorption, scanning electron microscopy analysis and X-ray diffraction analysis. Immobilization of phosphorus, copper, zinc, and arsenic in swine manure by activated RM was studied as a function of RM dosage, pH and time. The immobilization efficiency of phosphorus, copper, zinc and arsenic increased with the increase in RM dosage, reaching 77, 39, 42, and 78 % when the proportion of RM to swine manure was 20 %. The pH of the solution had a significant impact on the immobilization and it was found that the efficiency increased with the increase in pH. During the 24-h immobilization, the efficiency increased with time and achieved equilibrium after 12 h. Chemical variations of phosphorus, copper, zinc, and arsenic during the immobilization process were investigated with sequential chemical extraction method and the results showed that the contents of non-labile fractions of phosphorus, heavy metals and arsenic increased obviously, whereas the contents of labile fractions decreased.  相似文献   

Magnetic properties of airborne particulate matter in Shanghai during dust storm events and the implications for heavy metal contaminant sources     

Peng Qian  Limin Zhou  Xiangmin Zheng  Yan Dong  Yongjie Wang 《Environmental Earth Sciences》2014,72(10):4167-4178

Airborne particulate samples (including dust storm period samples) were collected from the Putuo, Qingpu and Minhang districts of Shanghai city from October, 2009 to October, 2010, and also tracked the dust transporting pathways from NW (Northwest) to SE (Southeast) including the cities of Xi’an, Beijing, Zhengzhou and Nantong, as a means of sampling the dust storm particulate matter in the spring of 2010. After measuring the magnetic parameters and the concentrations of particles and heavy metals, their magnetic properties were analyzed to track the source locations of heavy metal pollution during dust storm events, and then combined for backward trajectory analysis. It was found that the slightly polluted dust particles carried many contaminants during dust storm periods when the dust palls were transported by winter monsoon winds from the NW desert region towards the SE. The contaminants were further increased by contributions of fine SP&SD grains derived from local automobile exhausts in Shanghai as well as being enriched also in Northern cities during non-dust storm periods. A significantly positive linear relation was found between the χ_lf and SIRM of loess and the storm dust, indicating a similar material source for these two kinds of samples. A higher χ_lf and SIRM in storm dust content compared to loess suggests that storm dust contains not only materials from natural sources, but also those from partly anthropogenic sources. Backward trajectory analysis indicates intuitively the source region of the Shanghai storm dust. These conclusions have important scientific significance for research on long-distance transportation of contaminants (such as heavy metals) adsorbed onto airborne particulate matter during dust storm events.  相似文献   

光学显微镜成像方式及投影冷光源的分频合成探讨     

赵应权  沈忠民  王鹏 《岩矿测试》2014,33(5):674-680

传统显微镜光源主要包括卤素灯光源、纯水过滤热射线光源、LED光源等,由于卤素灯光源含有大量760~1400 nm区段的红外线,纯水过滤热射线光源滤除红外线不彻底且水会导致透射光线的部分散射,LED光源在500 nm波长附近的光照强度不足、波形存在缺陷,容易灼伤样品或使成像质量受限,都难以满足需要采用大功率冷光源进行无损、高质量显微观察成像和测试的要求。本文在总结光学显微镜的成像方式、光源类型及各类光源优缺点的基础上,提出了采用三棱镜-凸透镜组分频合成冷光源的新思路。该思路首先利用三棱镜将卤素灯光源光谱按频率顺序打开,然后选择可见光区域内的光谱,用凸透镜组校正可见光方向后,再由三棱镜将这些可见光合成不含热射线的冷光源。理论和砂岩荧光薄片实际测试效果表明,该方法既可完全排除热射线,从而使样品免遭受破坏,又保持了完整的可见光光谱,解决了大功率冷光源红外线生热和光谱存在缺陷的难题,这为采用大功率冷光源的光学显微镜投影高质量成像提供了新的方法及切实可行的依据。该套分频合成光源的装置主要配置为:玻璃材质的同规格的三棱镜与凸透镜各两个,卤素灯光源一个。结构简单,可在需使用大功率冷光源进行无损成像和测试等方面获得广泛的应用。  相似文献   

Accumulated Deformation Behavior and Computational Model of Water-Rich Mudstone Under Cyclic Loading     

Cheng-hua Shi  Zu-de Ding  Ming-feng Lei  Li-min Peng 《Rock Mechanics and Rock Engineering》2014,47(4):1485-1491

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