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There are 8.6%~10.91% foreign matter in the sphenes, in which radioactive elements of strontium, cesium and uranium range from 4.26% to 4.58%. The change of structural cell parameters of sphenes is still very little,Δa=-0.0009 nm~0.0041 nm,Δb=0.0018 nm~0.0004 nm,Δc=0.0002 nm~0.0048 nm,Δβ=-0.10°~0.09° with high crystallinity of 99.27%~96.46%. Though, the age of sphene from the Fenghuang Mountain is about 1000 Ma, and experienced 775 Ma~1758 Ma geological evolvement and alpha decay, its crystallinity only decreased 3%, and its crystal shape and structure are still fine, indicating that sphene is of good ability to solidify radioactive elements. Therefore, sphenes are ideal minerals for solidifying nucleus waste.

通过对北祁连牛心山变质杂岩体中榍石(775Ma)和山西凤凰山花岗岩中榍石(1758Ma)的XRD及EDS等测试与研究,结果表明:两地榍石的杂质元素质量分数高达8.6%~10.91%,放射性核素锶、铯和铀的质量分数达4.26%~4.58%;晶胞参数的变化极小,△a=-0.0009nm~0.0041nm、△b=0.0018nm~0.0004nm、△c=0.0002nm~-0.0048nm、△β=-0.10°~0.09°,结晶度仍高达99.27%~96.46%,榍石经过10×10^8a的地质作用,结晶度仅减少了3%,显示榍石固化放射性系列核素的能力较强,虽经历了约775Ma~1758Ma的复杂地质演化及其所含放射性核素的衰变作用,其晶体结构完好,稳定性极高,是值得期待的理想核废物固化矿物。

Working from outside the basin in to the Mare Basalts, they find the surface composition changes from Feldspathic breccias (Feldspar is a rock that crystallizes from magma) to shocked Anorthosite (a type of feldspar that makes up the light areas of the moon), to unshocked crystalline anorthosite, to high Calcium pyroxene (a rock made of silicate minerals) and pyroclastic rocks in the center.

研究发现:从盆地外边到盆地内部的玄武岩海(盆地内部的熔岩形成的地质结构),月球表面的地质结构依次是:长石质的角砾岩(长石是火山熔岩结晶形成的岩石)、经过冲击的粒状火成岩(构成月球阳面的一种长石)、没有经过冲击的粒状火成岩结晶体、高钙辉石(一种由硅酸盐构成的岩石),最中心的位置是分裂状的火山岩石。

Result in the flourishing process of geographic cultural educational base, designer need seeking creative exploration and breakthrough for the exhibit art representing ploy. Concentrating on the reasonable utilizes of high technique and material, achieving the consummate combination of ideological and art、science and appreciate、educable and interesting, to satisfy public's more request for exhibit form and content of geographic museum .

正是由于这一地质文化教育基地在新时期的蓬勃发展,设计者更要在其陈列艺术的表现手法上寻求新的探索和突破,注重高技术和材料的合理运用,实现思想性与艺术性、科学性与观赏性、教育性与趣味性的完善结合,以满足广大群众对地质博物馆的陈列形式和内容所提出的更高的要求。

So the systematically study of loess landslides are emergently needed. Based on detailed investigation and survey of characteristics of environmental geology, engineering geology, hydrometeorology in Tongchuan, the distribution characteristic and the outer, inner factor of loess landslides are studied; and it is concluded that the rainfall and artificial engineering activity are the leading causes of loess landslide among various factors. Through plenty of tests of soil samples, it is researched that the loess"s physical mechanics characteristics, the loess landslide"s formation mechanism and kinematics mechanism.

本文在详细调查和勘察铜川地区的环境地质、工程地质及气象水文特征的基础上,对黄土滑坡的分布特征和滑坡形成的内外因素进行了深入剖析,认为在各种影响因素中,大气降水和人类工程活动是铜川黄土滑坡的最主要的诱发因素;在采集大量的土样并进行试验的基础上,对黄土的物理力学特征和黄土滑坡形成机理、运动学机理进行了研究,推导出了滑坡运动机理中的孔压参数A_D、B_D分别与孔隙比和饱和度的统计关系。

The project will make full use of Cretaceous marine, terrestrial strata and paleontological records.

项目将充分利用中国大陆发育完好的白垩纪海相、陆相地层及古生物记录,通过松辽盆地白垩系科学钻探全岩芯取样和多学科综合研究的途径,着眼于厘定反映地质事件和气候变化的层位及标志和时间格架,解决高分辨率海、陆相沉积事件的精确对比,分析地层记录中气候标志和古生物类群的地理分布,集中研究陆地和海洋环境对同一事件的响应机制,重溯白垩纪地球表层系统重大地质事件过程及成因,探究陆相烃源岩大规模形成、陆地生物群更替与温室气候变化和碳循环之间的正/负反馈关系和机制等科学问题,为预测全球长时间尺度上的气候变化趋势提供科学依据。

The various aspect problems in city construction are more and more complex with cities scale and up-to-dateness continuously growing. The requirements of accuracy on engineering geological environment evaluation are higher and higher and classical method of qualitative analysis is unable to meet the challenge of city planning and proper exploitation and utilization of land resources. A scientific and accurate method of engineering geological environment evaluation is necessary.

随着城市规模和现代化程度的不断提高,城市建设所涉及的各方面问题日趋复杂严重;因此对城市工程地质环境质量评价的精度要求越来越高,传统的定性评价方法已难以满足城市规划建设和国土资源合理开发利用的需求,寻求一种科学准确的工程地质环境评价方法势在必行。

However, the mathematical study of the geology of this area is still lacking. On the basis of geological field survey, we have made systematic sampling and geochemical analyses of the rocks, and systematically studied the relationship between the Cu-Ni variable and the rock-forming element variables by the method of multi-variate...

文中在系统的野外地质调查基础上,进行了系统采样和岩石地球化学分析,应用多元线性回归和逐步回归分析相结合的方法,借助SPSS数学统计软件系统的研究Cu-Ni变量与造岩元素变量的关系,建立Cu-Ni变量与其他变量的回归方程,验证与解释白石泉Cu-Ni硫化物矿床的成因、岩浆来源等问题,对指导找矿勘探有重要作用,对应用数学地质方法有指引作用。

Zhangtianqu oilfield locates in the center of Yixia west slope, Ordos Basin. The field has a complex hydrocarbon-bearing bed set. On principle that lithology and reservoir can be identified, geologic parameters such as shale content, porosity, and oil saturation can be determined and be used to distinguish oil-bearing formation from water formation, as well as costeffectiveness, an improved logging interpretation model has been established. The model extends conventional single porosity interpretation methodology to identify various lithologies (such as coal seam, radioactive sandstone, carbonate rock besides sandstone and shale) by comprehensively analyzing the logging responses of sand reservoirs on economic logging set of acoustic logs and induction logs. Applications on real data show the improved model is superior in identifying complex lithology with conventional logging data.

张天渠油田位于鄂尔多斯盆地伊陕斜坡西部中段,该油田含油层系复杂,在岩性地质特征分析时,本着&能确定岩性,划分储层,提供泥质含量,孔隙度,含油饱和度等地质参数,区分油层,水层,以及经济适用&的原则,选用经济适用的声感组合测井系列,通过综合分析砂岩储层的测井响应特征,对传统单孔隙度解释方法进行改进,增加识别多种岩性成份(除砂岩,泥岩外,局部含有煤岩,放射性砂岩,碳酸盐岩等复杂岩性)的功能,建立了适合该油田的测井解释模型,提高了利用常规测井资料识别复杂岩性的能力和测井参数的解释精度,为油田勘探开发提供依据。

Especially the drainage area of upper reaches of Yellow River in northeast Qinghai-Tibet Plateau, the drainage area of upper reaches of Yangtse river, lower reaches of Brahmaputra in southern Tibet and the upper reaches of Nujiang river, Lancangjiang river and Jinshajiang river in southeastern Tibet, are centralized areas that geological hazards occur, in which the earthquakes, rockfalls, landslides and mudflows are most typical, severe, and mostly hazards in human modern engineering activity and living environment.

尤其是青藏高原周缘西北部的黄河上游流域、东南部的长江上游流域、西藏南部的雅鲁藏布江下游区及其东南部的&三江地区&,成为地质灾害事件集中发生的区域,其中的地震、崩滑流、断裂活动等地质灾害效应最为强烈,成为影响现代人类工程活动和生存环境的主要灾害。

Combined with the magnetic survey in submarine tunnel engineering geological investigations in the Kiaochow Baymouth,the methods of the fine magnetic survey are introduced firstly in this paper,and high precision data processing methods by means of GEOCAP are expatiated.

结合胶州湾湾口海底隧道工程的地质物探勘察工程,介绍了精细海洋磁法勘测的海上调查方法,阐述了利用GEOCAP软件的磁力实测数据资料的高精度数据处理技术,说明了利用GRAPHER软件、SURFER软件和MAGPICK软件绘制磁力异常ΔT剖面图、平面等值线图和平面剖面图的方法,最后讨论了应用磁测资料进行地质解释的方法。

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