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- In the overlapped fault volcan ic basin there occurred extensive magmatic rock consisting of potassium_rich int ermediate_basic to alkaline volcanic rocks and lamprophyre. 在上叠构造断陷_火山盆地单元内，广泛分布幔源岩浆 岩，包括中基性到碱性的侵入岩、富钾火山岩和煌斑岩；
- Keywords Alkaline volcanic rock geothermal system epithermal gold deposit Papua New Guinea.; 碱性火山岩;地热系统;浅成低温热液金矿床;巴布亚新几内亚;
- Alkaline volcanic rocks 碱性火山岩
- alkaline volcanic rock 溶解作用
- The Jurassic volcanic rocks are belong to K alkaline and came from shallow crust with weak repartition of magma. 侏罗纪为钾质碱性系列,古近纪为钙碱性系列,而且前者岩浆源较浅,岩浆分异作用差。
- 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
- 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。
- Volcanic rocks have high susceptibilities under normal conditions. 火山岩在正常情况下有强的磁化率。
- 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。
- It is a product of volcanic rocks of the Mesozoic Era,over-saturated with silica and rich in potash. It can be compared with geode natrolite that producedin alkaline basalt series of the Cenozoic Era. 它是中生代硅酸过饱和并富钾质的火山岩系的产物,其意义可与产于新生代碱性玄武岩系中的晶洞钠沸石对比。
- In baisn peripheral areas, J3 mildacid and high-K volcanic rocks distribute in the west of Tanlu fault, calc-alkaline series in Chuzhou, Fanchang and Ningwu and alkaline series in Huaining and Lucong. 中生代在合肥、信阳盆地内有分布，合肥盆地发育晚侏罗火山岩，为中性、高钾、钙碱性系列火山岩；
- The alabandite and getchellite of hydrothermal origin, cement anatase of alkaline volcanic origin, and the high content of chlorite in coal were fist found in coals. 在西南地区晚二叠世煤中首次发现了热液成因的硫锰矿和硫砷锑矿、碱性火山灰成因的胶态锐钛矿和陆源碎屑成因的斜绿泥石。
- 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。
- Volcanic rock can become favorable oil-gas reservoirs. 火山岩可以成为良好的油气储层。
- 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
- He misjudged and thought that the volcanic rock was just ordinary rock. 他看走眼了,把火山岩当成了礁石。
