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- lithology of volcanic rock 火山岩岩性
- The lithology of effusive-facies volcanic rock can be distinguished by GR logging.Effusive facies shows low or media-low value of DLL. 自然伽马测并可以区分喷溢相火山岩的岩性，双侧向测井显示喷溢相火山岩为中低阻、中阻；
- The formation of volcanic gas reservoir is of complicated lithology, variable lithofacies, overlapped volcanic rock, developed barriers, bad connectivity. 火山岩气藏在地质特征上往往表现出岩性、岩相变化快，火山岩体相互叠置，阻流带发育的特征。
- 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。
- 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。
- There is a large area of Masozoic acidic volcanic rock in southeastern China,which is an important area of volcanic uranium deposits. 中国东南部分布着大面积的中生代中酸性火山岩，是我国重要的火山岩型铀矿产区。
- A triangle of volcanic rock in the South Pacific - it is best known for the giant stone monoliths, known as Moai, that dot the coastline. 南太平洋的一个三角形的火山岩-以巨型独石而闻名，被称为莫埃，使得海岸线如斑点点缀一样。
- At the early period, aulacogen is commonly mistaken as “basement" because of interbed of volcanic rock in sedimentary rocks.In fact, t... 裂陷槽发展的中期是一个相对持续稳定的沉降阶段，有利于烃源岩的生成；
- The temperature of volcanic gases is very high. 火山气体的温度很高。
- All three worlds started out the gray-black color of volcanic rock and reddened as the original minerals oxidized to iron oxides (similar to rust). 这三颗行星最初都是呈现火山岩的灰黑色，后来因为原始矿物氧化成氧化铁（就像是铁锈）而逐渐变红。
- Obsidian, a form of volcanic rock valued for its strength and durability, was an important resource for ancient Mesoamerican cultures including the Zapotec and Maya. 黑曜石，是火山石的一种形态，因其坚固耐久而别具价值，在古代中美洲文明，包括萨巴特克和玛雅文明中，都是一种重要的资源。
- But, with constant launch and deepgoing of exploration work of volcanic reservoir, the research methods of reservoir connected with volcanic rock is increasingly becoming mature. 但是，随着对火成岩油气藏勘探工作的不断开展和深入，与火成岩相关的油气藏研究的研究方法也日趋成熟。
- Some new technology as the defluoridation facilities of volcanic rock zeolite and defluoridation technology of lithotripsy absorption are also used in practice. 一些新技术也在实践中，如火山岩分子筛吸附降氟设备、碎石吸附降氟技术等。
- The study suggests that the types of volcanic rock of GuanTao formation in this area are chiefly tuff and basalt，and different types have different log responses. 研究表明，馆陶组火山岩主要类型为玄武岩和凝灰岩，不同火山岩类型间具有不同的测井响应特征；
- 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。
- Isolated for centuries from the outside world, the people of Rapa Nui developed their own 37)distinctive culture, a culture perhaps best known by the moai, huge figures carved of volcanic rock. 离市中心60公里远便是南美最主要的滑雪中心，而要到面向太平洋的美丽海滩只需朝西北方向开一个小时的车便可到达。
