Acidic rocks have a silica content over 70% Granite is the typical example of acidic intrusive igneous rock, which is composed mostly of potash feldspar, quartz and minor mica.

岩石中Si02含量大于70%时，称为酸性岩，花岗岩就是酸性侵入岩石的一个典型例子，它的矿物成分主要是钾长石、石英以及少量云母

属类：工程技术-地质-地质与勘探

Because they cool slowly the mineral crystals have enough time to grow to a size which can be easily seen with the naked eye. Thus the intrusive igneous rocks usually have a coarse texture.

岩石中矿物晶体就有足够的时间结晶生长，这样，岩石中矿物便足够的大，以致于用肉限也可辨认它们。所以侵入岩通常具有粗粒结构。

属类：工程技术-地质-地质与勘探

The Summary and Comment on Research on a New Kind of Igneous Rock-Adakite

一种新的火成岩―埃达克岩的研究综述

属类：行业术语-中文论文标题-

A New Correlation Analytical Technique and Its Application in Complicated Igneous Rock Region

一种新型相干分析技术在火成岩复杂地区的应用

属类：行业术语-中文论文标题-

Because they have been extruded or pored out on the earth’s surface, igneous rocks from volcanoes are called extrusive igneous rocks.

因为这种火山岩是熔岩喷出地球表面而形成的，所以称之为喷出岩。

属类：工程技术-地质-地质与勘探

Characteristics of Igneous Rock Lithofacies and Its Recognition Marks in Chagan Sag, Yin’gen Basin

银根盆地查干凹陷火成岩岩相特征及其识别标志

属类：行业术语-中文论文标题-

Any of a group of chemically and physically related aluminum silicate minerals,common in igneous and metamorphic rocks,characteristically splitting into flexible sheets used in insulation and electrical equipment.

云母化学上和物理上有联系的铝硅酸盐矿物群的总称，常见于火成岩和变质岩中，以易裂成柔软的薄片为特征，用于绝缘体及电气设备中

属类：综合句库--

Of the three great classes of rocks, igneous rock constitutes most of the earth’s crust though their great volume are extensively covered by sedimentary rocks.

在3大类岩石中．火成岩组成了地壳岩石的大部分，虽然火成岩大都被沉积岩所覆盖。

属类：工程技术-地质-地质与勘探

The most common intrusive in the order of igneous rocks is granite

在火成岩系列中最常见的侵入体是花岗岩。

属类：综合句库--

Application of Synthetic Geophysical Prospecting in Research of the Igneous Rocks from the Yingmaili Area, Tarim Basin, China

综合物探在塔里木盆地英买力地区火成岩研究中的应用

属类：行业术语-中文论文标题-