查询词典 volcanic rock

The hypo-volcanic crytoexplosion Breccia rock body and the felstone in the east-western shear zone are the important symbol of the exploration.

东西向脆－韧性剪切带内次火山隐爆角砾岩体、霏细岩脉的存在是区内重要的找矿标志。

Six rock types（mudstone, dolostone, marl, limestone, ostracode limestone and volcanic ash）comprise the sedimentary strata.

青一段识别出6种岩石类型(泥岩、白云岩、泥灰岩、重结晶灰岩、介形虫灰岩和火山灰)。

Yanbian region lies in the eastern segment of north margin of North China slab, situating on the intersect point of North China, Sibiric and the pacific slab. Space and boundary of these slabs controls the Mesozoic volcanic-subvolcanic rock distribution, which restricts the epithermal-porphyry gold metallogenic series. Though many research of deposits have been done individually, the synthesize works are few.

中文题名延边地区浅成低温热液－斑岩型金成矿系列副题名外文题名 The epithermal-porphyry gold deposit series in Yanbian region 论文作者梁俊红导师金成洙王建国教授学科专业矿产普查与勘探研究领域\研究方向学位级别博士学位授予单位东北大学学位授予日期2002 论文页码总数112页关键词成矿系列金矿床延边地区馆藏号BSLW /2003 /P618.51 /1 延边地区处于华北板块北缘东段，正好位于华北板块、西伯利亚板块和濒太平洋构造三大构造区域之间的三联点处，三者所处的空间位置和边界条件，对延边地区的火山—次火山岩及与之有成生联系的金成矿系列的形成和演化起着明显的控制作用。

The historic centre of Arequipa , built in volcanic sillar rock , represents an integration of European and native building techniques and characteristics , expressed in the admirable work of colonial masters and Criollo and Indian masons .

秘鲁阿雷基帕城历史中心由火山岩石建成，它代表了欧洲与本土建筑技术，风格的融合，这些技术和风格体现在殖民宗主，克里奥尔人和印度人的作品中。

Lithological characteristics of sublacustrine white smoke type exhalative rock of the Xiagou Formation in Jiuxi Basin;2. In order to solve this problem, the author have studied the Lithological characteristics , forming environment,volcanic facies and reser.

基于此，作者通过对徐家围子地区火山岩的岩石学特征、形成环境、火山岩相与储集性能关系的综合研究，试图为该区火山岩油气藏的勘探开发提供必要的基础理论支持。

The identification of volcanic rocks in Hg, especially trachytic pyroclastic rock, is of great significance in finding out the genesis of the Bayan Obo ore deposit and the geological setting for the formation of Bayan Obo Group.

对Hg地层中火山岩，尤其是粗面质火山碎屑岩的确定，对了解白云鄂博矿床的成因和白云鄂博群形成的地质背景有重要意义。

Keywords tuffaceous volcanic reservoir;mineralogy;rock dynamics;fracturing; Xinganling Group;Hailaer Basin

凝灰质储层；矿物学；岩石力学；压裂；兴安岭群；海拉尔盆地

The tools are known as cobbles, lumps of volcanic basalt split by hitting them with another rock, leaving sharp cutting edges

这些名为砾石的石器，是用另一块石头从火山玄武岩上敲下来的，具有锋利的刃。

Rockburst is a mine seism that is caused to happen by mining, it is one of natural calamities. It is a dynamic phenomenon, the coal and rock mass or fault in high stress area releases a large of energy when it is disturbed and instability destroy instantaneously, and its characteristic is volcanic shake and explosive destroy.

冲击地压是采矿诱发的矿井地震，是矿井的一大自然灾害，是指矿井高应力区内煤体、岩体及断层在受外界扰动瞬间失稳破坏时，释放出很大能量而引起的以猛烈震动和爆发式破坏为特征的矿山动力现象。

The uneven stratum on the foreshore near the Lai Chi Chong pier is volcanic ash sedimentary rock. Displaying very distinctive foldings, faults and bedding structure, it is an ideal location for geological study.

荔枝庄码头附近一前滩凹凸不平的岩层，是经过地壳运动挤压而成的山火灰沉积岩，岩石的褶曲、断层及层理构造清晰展现，因此是极佳的地质考察地点。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。