Concentrators in geological sciences elect either geology or geography.

主修质学的学生要选修质学理课程。

Biochronology The measurement of geological time using biological events.

使用生物学事件来测量质学时间。

The mines had been closed down following a geological survey.

继质调查之后,这些矿井已被关闭了。

The workers skirted the edge of the cliff on a geological survey.

工人们沿着崖壁作了质勘察。

Alkalescent granites and gold-related silication and argillation are geological prerequisites for the formation of noticeable gold deposits.

摘要偏碱性花岗岩及与金的成矿活动有关的硅化、粘土化蚀是黑刺沟金矿田规模金矿床存在的质前提。

Simple geological structure, an open-pit mine, the development of high value for one of the three cryptomelane.

质构造简单，属露天矿，开发价值高，为全国三大钾矿之。

The main controlling factors of embankment slope stability are engineering geological petrofabric,rockmass structure type and structure of embankment.

在岸坡稳定性分析评价中,控制岸坡稳定的主要因素有岸坡岩性组合特征、岩体构类型和岸坡构类型。

The students of the geological class will be out on field exploration for the duration of the school year.

质班的学生将把本学年的全部时间用作野外勘探。

Geological charact eristics at their locations show continuous or pulsive westward slipping of lith osphere with respect to convection cell.

它们产出的质特征表明，岩石圈相对幔对流体，持续幕式向西滑移。

Geochron Laboratories was the first laboratory to provide high quality isotopic analyses to geological and archaeological communities on a comercial basis.

质年代实验室是首家商务运作的、可为质学和考古学团体提供高质量的同位素分析的实验室。

Fluorine is an important trace bio-essential element.Its deficiency or excess related to geological setting can cause organism distortion or supersession abnormality.

氟是重要微量生命元素,原生环境中氟过量缺乏均会导致机体代谢异常。

In Tiger Leaping-gorge region, endogenic and exogenic geological processes are very prominent, and in different reaches the deformed and failured masses develop dissimilarly.

金沙江虎跳峡区内、外动力质作用十分显著，岸坡形破坏体的空间分布具有鲜明的段性。

We propose that As anomalism in groundwater possibly resulted from the combined effects of organic matter-enriched lacustrine sediments, geological setting and topographical characteristics.

通过研究，可以看出以还原环境为主的富含有机质的湖沼相沉积环境、特定的质、形条件为下水砷异常的原因。

Reserves geological and microtectonics fe ature play important control function of remnant oil distribution.Taking the Se ries as a whole, it is eviden...

从整个层系看前缘席状砂微相始终控制着剩余油储量,应作为挖潜的重点之。

Then use antitone structural analysis method to recognize and reconstruct the primary tectonic structure and sedimentary feature of a basin in certain geological history.

要认识和重建某个质历史时期盆的原始构造格局和沉积特征，就必须除去后期叠加的构造层和构造形，即反序构造分析法。

On basis of this model, the modeling methods and modeling flow were discussed based on data source of geological observation, drillhole, ichnography and section map.

在此基础上，探讨了在基于质观测数据、钻孔数据、平面图数据、剖面图数据的断层建模方法和建模流程。

Large scale planar geological mapping, profiling survey and microfabric analyses proved that lithophysa structure was developed in rhyolite in Yingcheng coal mine area, Jiutai City.

摘要通过大比例尺平面质续图、剖面测量和显微组构分析，九台营城煤矿区流纹岩中石泡构造发育。

This paper introduces the geological features and the unhomogeneous weathering phenomenon of coral reef limestone of Sudan Port Area,and the bearing capacity of this layer.

简单介绍苏丹港区珊瑚礁灰岩的质特征及不均匀风化现象,以及该层的基承载力。

So the distribution and the content of conglomerate were different, and its geological phenomenon in the data of drilling, outcrop, logging and seismal section in different area.

发现因保山盆主控断层的西边在盆演化过程中直处于隆升状态,从而造成不同带砾岩的分布和含量存在差异,在钻测井、震资料中的体现也不相同。

With the increasing of national economy and the accelerating of cityward course, the project of construction makes a rapid progress,then companied with the increasing of inferior geological condition.

随着国民经济的增强、城市化进程的加速，建设工程得到了迅速发展，随之而来的是不良质条件的迅速增多。