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geochemistry of volcanic rocks 火山岩地球化学
The characteristics of geology, petrochemistry and REE geochemistry of the paleozoic volcanic rocks in Habahe, Altai, Xinjiang are expounded in this paper. 文中详细地论述了新疆阿尔泰哈巴河一带古生代火山岩的地质、岩石化学、稀土元素地球化学特征。
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
The mountains consist primarily of volcanic rocks,with some of the lower hills formed of granite. 香港的山脉主要由火山岩组成，部分较矮的山丘属花岗石。
The mountains consist primarily of volcanic rocks, with some of the lower hills formed of granite. 香港的山脉主要由火山岩组成，部分较矮的山丘属花岗石。
There exist four layers of volcanic rocks in Sinian and Cambrian strata of Kuruktag area, Xinjiang. 在新疆库鲁克塔格地区的震旦纪和寒武纪沉积岩地层中，分布有四层火山岩。
The distribution of volcanic rocks in Mohe are extensive.There are three periods of volcanic activities in this region. 漠河地区火山岩分布较广泛，共有3期火山活动。
Their original rocks are volcanic rocks, epicontinental clastic sedimentary rocks, and ophiolite of volcanic and island arc tholeiitic series or calcium alkali series. 其原岩岩石类型有火山岩，陆缘碎屑沉积岩，火山、岛弧拉斑系列或钙碱系列火山岩、蛇绿岩等。
The study of volcanic rocks in orogenic belts aims mainly at retracing the tectono-magmatic evolutionary history of orogenic belts. 摘要造山带火山岩石学研究的主要目的在于重溯造山逞的构造-岩浆演化历史。
The seismic reflection characteristics of volcanic rocks are mostly strong amplitude, apparent low frequency and the continuity is bad. 火山岩地震反射特征主要为强振幅、视低频,而且连续性差。
Eleven types of volcanic rocks are found to be effective gas reservoirs in the Yingcheng Formation of the Songliao Basin. 钻井提示松辽盆地营城组火山岩储层的主要岩石类型有11种，主要储集空间为气孔、溶孔、砾间孔和裂缝。
Facies model described here has been effectively used in seismo-reservoir interpretation in the gas field of volcanic rocks of the Songliao Basin. 相模式能够直观反映火山岩相和亚相之间的叠置关系，是地震-岩相解释和储层预测的地质基础。
The temperature of volcanic gases is very high. 火山气体的温度很高。
The principal period of volcanic activity produced large volumes of mainly acid and basic volcanic rocks accompanied by volcaniclastic sediments which contain isolated coal seams. 火山活动的主震时期产生了大量的主酸性以及基性火山岩，并伴随着火山碎屑沉积物，且其中包含着分离的煤层。
Mesozoic volcanic activities of the Tan Lu fault zone mainly appeared in Early Cretaceous and resulted in a set of volcanic rocks characterized by shoshonite series. 郯庐断裂带中生代火山活动主要发生在早白垩世,形成了一套以橄榄安粗岩系为主的火山岩。
The Geochemistry of Gold and Its Deposits II. 金的地球化学及金矿床2。
The uranium ore field in Xiangshan of Jiangxi province is the largest uranium ore field of volcanic rock type in China. 江西相山铀矿田是我国目前最大的火山岩型铀矿田,一直是铀矿地质学界的研究热点之一。
Though it is roughly recognizable for the outlines of regional structure and volcanic rocks, the images of steep dip strata and boundary of volcanic rock are smeared. 虽然区域构造与火山岩的复合发育区的基本轮廓可被识别，但陡倾角地层的反射成像不清晰，火山岩地层边界模糊。
The classification and name of volcanic rock are mainly based on the contents of main petrogenetic mineral. 摘要火山岩的分类定名主要依据主要造岩矿物的含量。
In this area the density value of logging response of volcanic rock correlate well with porosity. 同时发现该区火山岩测井响应的密度值与孔隙度之间具有很好的相关性。