Biochronology The measurement of geological time using biological events.

使用生物学事件来测量质学时间。

Concentrators in geological sciences elect either geology or geography.

质学的学生要选质学或理课程。

Dolores R.Piperno Phytolith Analysis:an Archaeological and Geological Perspective.Academic Press,Inc.(USA).

多洛雷斯·派潘诺[美],姜钦华等译,植硅石分析--在考古学和质学中的应用,北京大学出版社.

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、粘土化蚀变是黑刺沟金矿田规模金矿床存在的质前提。

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,控制岸坡稳定的要因素有岸坡岩性组合特征、岩体结构类型和岸坡结构类型。

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，持续或幕式向西滑移。

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。

Geological radar is a non-destructive test instrument that detect the underground objects by the quality of discontinuousness of the underground medium.

质雷达是一种通过利用下介质的不连续性来探测下目标的无损检测工具。

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,原生环境中氟过量或缺乏均会导致机体畸变或代谢异常。

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

金沙江虎跳内、外动力质作用十分显著，岸坡变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一。

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。

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。

The ANN starts with simulating cerebric visual thought, and it has wide application foreworld for geological information of underground engineering,taking on strong buzzing, fuzziness, nonlinear.

神经网络方法从模拟人脑的形象思维入手，对于处理具有强噪声、模糊性、非线性的下工程质信息，它具有广阔的应用前景。

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。

This paper indicates the reasons of establish member and introduces its origin and stratotype section, as well as its extend and correlation.At last, its geological age is discussed.

文中阐述了建段的理由，介绍了名称来源、层型剖面、层的延伸与对比，讨论了质时代。

In the geological condition of shallow buried, soft rock, and carst, et al. the mother rock of these kinds of tunnel must be paid attention in the whole construction stage.

在浅埋、围岩软弱、岩溶等复杂质条件下，这类隧道在不同施工阶段围岩的稳定性问题备受关注。