Geological Time

The periodic regularity of geological time in the Galactic year

地质年代在银河年中的周期规律

In terms of geological time scales , the whole process was lightning-fast .

从地质年代的角度来看，整个过程快如闪电。

In geological time , a million years is recent history .

在地质方面的时间观念来看，一百万年是很短的时间。

A unit of geological time during which a system of rocks formed .

地质上的分期，指岩石形成的时期。

A new geological time scale and views on the division of geological time

对地质时代划分的意见及新地质年代表

Key geological time of deciding the geochemical characteristics of coalbed methane

决定煤层气地球化学特征的关键地质时期

The Formula of Geological Time Scale

同步辐射时间分辨荧光光谱技术地质年代表的公式

Biochronology The measurement of geological time using biological events .

使用生物学事件来测量地质学时间。

Identification of Geological Time of Mesozoic Strata in Hefei Basin and Its Significance

合肥盆地中生界的地层时代判识及意义

A major division of geological time ; an era is divided into two or more periods .

地质时期的主要分期；一代分为两个或多个纪。

( of taxa ) occurring in the same period of geological time .

（分类学）发生于同一地质时间的。

The introduction of geological time into our reasoning is of prime importance for petroleum exploration .

对石油勘探而言，把地质时间引入我们的推论是最重要的。

To provide evidences for recognizing that of the similar sediments formed in geological time .

为研究古代类似沉积物早期成岩作用的识别提供了依据。

It is proved that the magmatic mixing occurred in a special geological time and setting .

专家建议，在城市规划和建筑物选址时应注意高氡地质背景区。

Paleogeotherm is important for understanding the thermal structure of lithosphere at a specific geological time .

古地温曲线是岩石圈在特定地质时期热结构的集中体现。

Two-fold or three-fold ? & concerning geological time scale of Permian Period

二分抑或三分&关于二叠纪地质年表

The inverse estimation of fault movement in geological time with Bouguer gravity anomaly nearby the fault

据断层附近布格重力异常分布反推地质时期断层运动的探讨

The original mineral components , external minerals and the characteristics of melting point are concluded according to different geological time .

本文选取不同地质年代的典型煤种，归纳总结出在不同的地质年代，煤灰的原始成分、混入外灰以及灰熔点的特征。

However , the present crustal structure is a collective fossil inherited from a long span of geological time .

然而，应该指出，现今地壳结构是在漫长的地质年代里，经过多次变形积累而形成的。

Of course , we 're talking geological time here , which is measured in tens of thousands of years .

当然，我们现在谈论的是地史时期，是以数万年测量的。

As geological time is , Man has so far existed only for a very short period one million years at the most .

按照地质年代来计算，人类到目前为止只存在了一个极短的时期——最多100万年。

The main purpose of this paper is to determine the geological time according to the results of basalt isotopic age determination .

本文的主要目的是依靠玄武岩同位素年龄确定地层时代。

The composition , property and evolutionary of mantle fluid dealt with that in the global extent during geological time ;

在全球范围内探讨地质历史时期地幔流体的组成、性质、运移及演化规律；

The historian dates by years , the geologist by millions of years a unit of geological time .

历史学家以年为单位划分历史时期，地质学家以百万年为单位划分地质期。

Like the Palaeozoic Era , the Mesozoic Era has been divided into smaller units of geological time called period .

如同古生代一样，中生代也可划分成一些叫纪的较小的时间单位。

Organismic evolution and geological time & comment on development of stratigraphy from time-space outlook of systems geology

生物演化与地质时间&从系统地质学时空观看地层学的发展美国人的时间观

As geological time is reckoned , Man has so far existed only for a very short period one million years at the most .

按照地质年代来计算，人类到目前为止只存在了一个极短的时期&最多100万年。

Obliquity of the ecliptic in the geological time

气候演变的周期性与黄道倾斜的关系地质时期的黄赤交角

Discussion of the Features of Palynological Assemblages and Geological Time of Permian in Laiwu Coalfield Shandong

山东莱芜煤田二叠纪孢粉组合特征及其地质时代讨论

The sudden appearance of abundant and varied fossils makes a worldwide time line for dividing the geological time scale into two main parts .

丰富多样的化石的突然出现为在世界范围内把地质年代划分为两大主要部份提供了时间界限。