primary rocks

The primary target of the monitoring is to dynamically determine the developing regularity, and heights of the" two zones"( caving zone and fractured zone) in roof rocks.

该监测的主要目的是动态测定煤层开采过程中顶板岩石两带（冒落带和裂隙带）的发展规律和高度，以指导相邻采区留设合理的防水或防砂煤柱。

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The results show that the primary failure modes of the slope are sliding and fracturing and bedding sliding. The Slope is in the initial stage of slip deformation, upper Deformation and the surface rocks slipped along the dimensions.

认为该边坡为顺层滑移型边坡，在开挖过程中边坡处于滑移弯曲变形初始阶段，变形体上部及表层岩体沿层面发生滑移拉裂变形。

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In the following primary migration simulation deuterated normal C_ ( 15)( n-C_ ( 15) D_ ( 32)) was added into different source rocks to study the isotopic fractionation in primary migration.

下面的初次运移模拟实验通过在源岩中加入氘代的正构十五烷（n-C15D32）来研究初次运移中的同位素分馏。

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The tectonic evolutionary process of the Paleozoic metamorphic rocks series have been discussed primary.

并初步探讨了古生代变质岩系的构造演化过程。

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The influences of diagenesis on the reservoir physical properties are mainly the change of porosity and permeability. Compaction and cementation of the reservoir rocks makes the primary pores and permeability decreased quickly, which is the main causes of the poor physical properties;

成岩作用对储集物性的影响主要表现在孔隙度和渗透率的变化，其中压实作用和胶结作用使储层原生孔隙迅速减少、渗透率降低，使得储集物性变差；

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