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The results of this study showed that the influencing factors of slope instability for the Luchang Area include rock fall at the west slopes, thick colluvium, sliding planes for dip-direction slopes, headward and sideward erosion of channel, as well as fast seepage of ground water. Two slide planes were recognized from geological profile model. One is potential slide plane on the dip-directional slope, another plane is located in the colluvium near Luchang river sides.

本研究结果显示,鹿场地区地质环境之不安定原因,有西侧岩壁落石、厚崩积土体、顺向坡平面滑动、河道的向源侵蚀和侧蚀、地下水渗流快速等;就所建构地质模型可以了解,鹿场地区可能的滑动面有两部份,一为潜在的顺向坡平面滑动面,另一为在鹿场溪河岸崩积层边坡内的滑动面。

This paper deals with basic principles and methods of application of environmental isotope and hydrochemistry to tracing groundwater movement and employs them in identification of groundwater system, solution of specialized hydrogeologic problems and creation of hydrogeologic conceptual model in an extra-long tunnel area.

本文较完整地阐述了应用环境同位素与水化学示踪地下水运动的基本原理与方法,并首次将其系统地应用于特长隧道地区地下水系统的识别、专门水文地质问题的解决和水文地质概念模型的建立。

Many difficulties exist in tunnel construction due to the effect of engineering geological condition and hydrogeological condition.

由于工程地质条件及水文地质条件等因素的影响,滑坡段隧道建设存在诸多困难。

Through the city hydrogeological conditions and technical economic feasibility analysis that the majority of China's cities .

通过城市水文地质条件和技术经济可行性分析认为,虽然我国大部分城市缺水,但只要根据城市规划和水文地质勘查成果,合理布局,是完全必要也完全可以建立城市应急供水水源地,以应对突发事件对我们的考验。

The result shows that the migration ability and distance of U are very limited in the geological, hydrogeological environmental conditions.

初步认为,在当地的地质、水文地质等环境条件下,铀的迁移能力有限,迁移距离较小。

The geologic and hydrographic conditions are complex,so it is very difficult for freezing design and construction.

赵固二矿风井筒穿过的冲积层厚度达到528.85 m,地质、水文地质条件复杂,冻结设计和施工难度较大。

Combined with hydrogeological information gained by exploration and hydrographical drilling, groundwater types and leakage ways under the water curtain corridor and Air-Cushioned Surge Chamber are found out, which provide the grouting engineering with more effective treatment.

结合水电工程勘查及水文地质钻探获取得的地下水文地质信息,查明了水电站水幕廊道和气垫调压室渗水的地下水类型和渗漏途径,为调压室的进一步灌浆处理提供了依据。

According to the variation in the components of intermediateacid igneous rocks coming from the lower crust, it is possible to restrain the depth of the source area and the minimum thickness of the crust, and thus to provide important information for the study of the deep process of the continental intraplate mineralizationGlobally, many world level porphyry copper deposits and metallogenic systems formed by hypabyssal hot liquid have their close relationship with the synchronous adakite in spacetime and genesis; domestically, the adakitelike rocks have been identified to be related to the metallogenesis in the main metallogenic areas in ChinaThe recognition of adakitelike rocks having no relationship with the process of subduction makes it possible to construct a metallogenic model of continental intraplate porphyry metal deposits by combining other geological evidences, and this model is totally different from the metallogenic model of porphyry copper deposits with Bsubduction setting constructed by Sillitoe (1972)The existence of adakitelike rocks may be the necessary condition but not the sufficient one for forming the largescale porphyry deposits and the hypabyssal hotliquid deposits, whose metallogenic elements mainly came from the mantleThe metallogenic potential of adakitelike rocks is achieved by the entering of the mantle material, and the metallogenic specialization of adakitelike rocks is decided by the distribution characteristics of the metallogenic elements in the upper mantleAn important reason for the adakitelike magma related to subduction being advantageous to mineralization is that there were abundant high pressure and high temperature liquid coming from the subducted platepieces and the magma of high fO2 coming from the melting of subducted platepiecesHowever, for those adakitelike rocks, whose occurrence has continental plate background but does not relate to the subduction, their metallogenic mechanism is not clear yetBased on the concept of modern mineral exploration and combined with the analysis of integrated geological information, we may better realize the practical prospecting significance of the adakitelike rocks

根据起源于下地壳的中酸性岩浆岩的成分变化,可以约束其源区深度以及地壳最小厚度,为大陆板内成矿作用的深部过程研究提供重要信息。全球范围内,许多世界级斑岩铜矿和浅成热液矿化系统与同期的埃达克质岩存在密切的时空与成因联系,在国内主要成矿区带也识别出与金属成矿作用有关的埃达克岩。与俯冲过程无关的埃达克质岩的识别,使我们有可能结合其他地质证据构建完全不同于Sillitoe(1972)B型俯冲环境的斑岩铜矿成矿模式的大陆板内斑岩型金属矿床成矿模式。对于规模巨大、矿质主要源自地幔的热液矿床的形成,埃达克岩可能是必要条件,但不是充分条件。埃达克岩的成矿潜力通过地幔物质加入而获取,埃达克岩的成矿专属性由上地幔成矿元素分布特征决定。与俯冲有关的埃达克质岩浆之所以有利于成矿,重要的原因是存在大量来自俯冲板片的高压、高温流体以及俯冲板片熔融形成高氧逸度(fO2)的熔体,但产出在大陆板内背景、与俯冲无关的埃达克岩的成矿机制还不清楚。根据现代资源勘查理念,结合综合地质信息分析,埃达克质岩具有实际找矿意义。

On the basis of geological characteristic of the Huang Long gold deposit , the geologicalcharacteristic of gold deposit in the northern Shi Quan-Han Yin is described in this paper, inwhich three ore-controlling factors, including rock strata, tectonic, hypothermal altered, arealso studied.

本文以黄龙金矿床的地质特征为中心,叙述了石泉一汉阴北部金矿的地质特征,阐述了岩层、构造、热液蚀变三种控矿因素。

This paper will discuss in the first part how the data of borehole distances being transmitted from an ichnographic layout to the section planes employing a computer program, and a method of merging analogy soil sub-layers to a major layer with the same statistical properties to facilitate the mechanical analysis using the fuzzy clustering is introduced.

讨论了用程序编制的方法实现的数据从平面图到剖面图的钻孔距离传递,利用模糊聚类思想提出的对剖面数据进行合并的建议和利用地质三维软件实现的三维地质体模型的耦合展示,这几个问题正是目前大多勘察单位在数据控制与传递流程中可能欠缺的环节。

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