暗色矿物

利用岩石薄片X衍射技术，在松辽盆地深层富碱酸性火山岩中识别出特征的碱性暗色矿物&钠铁闪石，从而确定其为碱流岩。

Using thin section X-ray diffraction techniques , his paper identified arfvedsonite in volcanic rocks from Songliao Basin , and thus confirmed that the volcanic rocks are composed of pantellerite .

样品中大多存在暗色矿物包体、晶体包体和裂隙。

Most of them have dark mineral inclusions , crystal inclusions and cracks .

多暗色矿物类岩石单轴加载过程中红外辐射定量研究

Quantitative study on the thermal infrared radiation of dark mineral rock in condition of uniaxial loading

岩石学研究显示这些凝灰岩主要为晶屑或玻屑凝灰岩，晶屑多为浅色矿物，长石和石英，暗色矿物较少。

Petrological studies indicate that these tuffs are mainly crystal or vitric tuffs , and crystal fragments are mostly light minerals , feldspar and quartz , dark minerals rather little .

笔者认为符合下列条件之一的火成岩才能定为碱性岩：（1）含似长石或碱性暗色矿物；

The author points out that only the igneous rocks fit-ting into one of the following conditions can be defined as the alkaline rocks : ( 1 ) containing feldspathoid or alkaline melaminerals ;

成岩过程中岩浆经历了橄榄石、单斜辉石、角闪石等暗色矿物以及少量斜长石的分离结晶作用，岩浆侵位过程中没有受到地壳物质的混染。

The magma might undergo fractional crystallization of olivine , clinopyroxene , hornblende and weak plagioclase during the diagenesis process , which however is not obviously contaminated by crust materials in the emplacement process .

富岩屑物源的地区，尤其是富中基性岩浆岩岩屑及铁、镁暗色矿物的物源地区为研究区绿泥石提供了物质来源，绿泥石对储层孔隙的保存具有积极的作用。

The material sources of chlorite are from the areas with rich provenance of debris , especially with abundant intermediate / basic volcanic rock fragments and femic dark minerals . The preservation of reservoir porosity chlorite has a positive effect .