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- Volcanic rocks have high susceptibilities under normal conditions. 火山岩在正常情况下有强的磁化率。
- Brucite fibre is a natrual, rare and high Mg medicine fiber. 水镁石纤维是天然产出的、见的高镁实心纤维。
- Basalt is the commonest volcanic rock. 玄武岩是最普通的火山岩。
- A volcanic rock containing many amygdules. 杏仁岩有很多杏仁状小气孔的火成岩
- Cretaceous volcanic rocks outcropped in the central part of Livingston Island consist of a basalt basaltic andesite andesite dacite association principally belonging to calc alkaline series and characters of low potassium and low Mg. 出露在利文斯顿岛中部的白垩纪火山岩为玄武岩－武安山岩－山岩－安岩组合，基本属于钙碱性系列，但具有低钾拉斑玄武岩的某些特点。
- The hotel is a cave on a volcanic rock in fact. 洞穴酒店其实就是一个火山岩上的洞穴。
- The volcanic rocks belong to high kalium calc alkalic series and can be divided into andesite, dacite, trachydacite and rhyolite by petrochemical composition. 据岩石化学成分，金刚台组火山岩可划分为安山质、英安质、粗面英安质和流纹质几种类型，并属于高钾钙碱性系列。
- Volcanic rocks of the Shangkuli cycle in early Cretaceous are high in potassium calc-alkaline series.The magma came from partial melting of earth crust. 早白垩世的上库力旋回火山岩为高钾钙碱性系列，岩浆来源于地壳的部分熔融；
- Sanukite, which finds common in Archean terrains worldwide, is characterized by high MgO content and high Mg associated with enrichments of Cr and Ni. Sanukite以富MgO、Mg%23、Cr和Ni为特征,在国外许多太古代地体中均有发现。
- A light-colored volcanic rock composed largely of feldspars. 响石，响岩大部分由长岩组成的淡色的火山岩
- Sulfur fumes have streaked the craggy volcanic rocks with pale yellow. 硫磺气为肌里斑剥的火山岩染上淡淡的黄色。
- Resembling a volcanic rock that contains many amygdules. 杏仁岩的类似包含杏仁孔的火成岩的
- The volcanic rocks of Yanshan Period have features of the mantle source. 燕山期火山岩具备幔源特征。
- According to analysis, beachrock is mabe up of terringenous clastic and bioclast, the cement are mainly aragonite and high Mg calcite. 14C dating data of beachrock samples show that Lianyungang beachrock formed in the Early Holocene. 经岩石样品及簿片、扫描电镜、~(14)C同位素等分析测定;海滩岩主要由陆源碎屑和生物碎屑组成;胶结物为文石和高镁方解石.
- Volcanic rock can become favorable oil-gas reservoirs. 火山岩可以成为良好的油气储层。
- With the increase of SiO2,from the basic volcanic rock to the acid volcanic rock,the fractional degree of HREE and LREE becomes more and more high. 从基性火山岩到酸性火山岩,随着SiO2的增加,轻重稀土分馏程度越来越高。
- The metamorphosed volcanic rock of the upper member of the Haizhou group is rich in alkali-feldspar (60 to 70%) and high potash feldspar (35 to 60%). 苏北海州群云台组上段变火山岩富含碱性长石(60-70%25)和钾长石(35-60%25);黑云母为富铁黑云母;部分火山岩含霓辉石、萤石等.
- Detailed studies of the petrography, petrochemistry and geochemistry, indicate these volcanic rocks have high contents of aluminum and potassium and are intermediate to acid lavas and homoplasmic tufts. 通过对该组火山岩的岩石学、岩石化学和元素地球化学研究，确认该火山岩为中性。
- A gray, fine - grained volcanic rock, chiefly plagioclase and feldspar. 安山岩一种灰色的，纹理细密的火山岩，主要是斜长石和似长石
- These basic volcanic rocks underwent high pressure metamorphism for two times, at least, in which sodium amphibolites are formed by high pressure metamorphism with different genesis. 这些基性火山岩至少发生了两期高压变质，两期高压变质形成的钠质角闪石具有不同成因。
