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- Large area of potassic volcanic rocks distributed over the Sailipu area of West Gangdis were originally assigned to the Sailipu Group and the age was Pliocene-Early Pleistocene. 冈底斯西段赛利普一带分布有大面积的钾质火山岩,以前曾被划归上新世-早更新世赛利普群。
- DENG Wan-ming. 1993.Study on trace element and Sr, Nd isotopic geochemistry of Cenozoic potassic volcanic rocks in north Tibet [J].Acta Petrologica Sinica, 9(4): 379-387(in Chinese). [4]邓万明.;1993
- STUDY ON TRACE ELEMENT AND Sr, Nd ISOTOPIC GEOCHEMISTRY OF CENOZOIC POTASSIC VOLCANIC ROCKS IN NORTH TIBET 青藏北部新生代钾质火山岩微量元素和Sr、Nd同位素地球化学研究
- potassic volcanic rocks 钾质火山岩
- rich potassium volcanic rocks 富钾火山岩
- potassic volcanic rock 钾质火山岩
- Basalt is the commonest volcanic rock. 玄武岩是最普通的火山岩。
- The volcanic rocks are mainly associated with spilite-quartz keratophyre series, and a few volcanic rocks of the basalt-rhyrolite series and potassic rhyrolite. 其中火山岩主要由细碧-石英角斑岩系列火山岩组成,还有少量的玄武-流纹岩系列火山岩和富钾流纹岩。
- 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。
- 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;
- 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。
- 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。
- 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