Welded tuff is commonly rhyolitic in composition.
焊接凝灰岩在组成上通常为流纹岩。
The Lubaka tuff does not contain minerals that can be dated radiometrically.
路贝卡凝灰岩并不包含能通过放射性来确定年代的矿物质。
The sedimentary rocks are graywacke, siltstone, tuff andpellitie, etc.
沉积岩有杂砂岩、粉砂岩、凝灰岩、泥质岩等。
There were basalt almond-shape basalt and tuff there.
有变橄榄玄武岩、变杏仁状玄武岩、变玄武岩和凝灰岩。
The tuff problem was solved, because Mary opened her purse soon.
棘手的问题解决了，因为玛丽及时解囊。
The acidic tuff section owns gold element with average content of 110.
其中的酸性凝灰岩段金元素平均值110。
Mountain mainly by rhyolite and tuff composition, there are local granite.
山体主要由流纹岩和凝灰岩构成，局部有花岗岩。
The tuff is a kind of predictable and new - type nonmetallic minerals resource.
凝灰岩是一种可预见的新型非金属矿产资源。
The thrid part are tuff, ferruginous dolomite, crystal tuff and volcanic breccia.
第三段以凝灰岩、铁质白云岩、晶屑凝灰岩、火山角砾岩为主。
Mainly is basalt and tuff, secondly become for the alteration basalt and andesite.
主要为玄武岩和凝灰岩，其次为蚀变玄武岩和安山岩。
Its heat reservoir is composed of Yanshanian granite-porphyry and tuff of Mesozoic.
热储由中生代燕山期花岗斑岩、凝灰岩组成。
Its heat reservoir is composed of Yanshanian granite - porphyry and tuff of Mesozoic.
热储由中生代燕山期花岗斑岩、凝灰岩组成。
The migration behavior of Sr in tuff was studied in both batch and column experiments.
用动态柱实验法和静态批式法研究了放射性锶在凝灰岩中的吸附和迁移。
The pyroclastic rocks which transit to lava mainly have breccia lava and tuff lava etc.
向熔岩过渡的火山碎屑岩主要为角砾熔岩和凝灰熔岩等。
The reservoirs in Permian is consist of carbonate rock, tuff, clastic rock and volcanic rock.
二叠系储集层主要由碳酸盐岩、沉凝灰岩、碎屑岩和火山岩组成。
The Qimagou Pb-Zn deposit occurs between onyx siliceous marble and volcanic tuff of the Xiong 'er Group.
骑马沟铅锌矿赋存于熊耳群条纹状硅质大理岩与火山凝灰岩之间。
Oil shale always has the accompanying relationship with overlying sedimentary tuff or other tuffaceous strata.
油页岩常与上覆沉凝灰岩或其它凝灰质岩石呈伴生关系。
The volcanics in the Beishan area, consisting mainly of lava and tuff, are well developed and linearly distributed.
北山地区火山岩发育，以熔岩和凝灰岩为主。
The buried hill tuff oil pool of Hanan Oilfield has an unconformable contact with overlying sandstone of Aershan Group.
哈南油田凝灰岩潜山油藏与上覆阿尔善组的砂岩油藏呈不整合接触。
The squeezing problem is one of the most tuff problems that appear during the construction of highway and railway tunnels.
隧道围岩大变形是目前公路、铁路隧道建设中遇到的重要科学问题。
The Machadodorp tuff and agglomerate, which is higher-lying than the Ongeluck lave, is known only from the Eastern Transvaal.
层位较昂格鲁克岩流为高的马却多多普凝灰岩及集块岩，只见于德兰士瓦东部。
Typical features of subaqueous volcanic rocks include perlite with glassy structure and pillow structure, lamellar tuff, bentonite.
水下喷发火山岩典型标志为珍珠岩、玻璃质结构、枕状构造、纹层状凝灰岩和膨润土。
The two early Carboniferous fragments are composed of Basalt and ash-black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.
早石炭世两个断片由玄武岩和灰白色、紫红色放射虫硅质岩、硅质泥岩、凝灰岩组成。
The two early carboniferous fragments are composed of basalt and ash - black, fuchsia radiolaria silicalite, siliceous mudstone, tuff.
早石炭世两个断片由玄武岩和灰白色、紫红色放射虫硅质岩、硅质泥岩、凝灰岩组成。
Cast slice of the sandstones with higher interval transit time verified that the dissolution intensity of tuff fillings took on trunk.
对声波时差异常带砂岩进行大量的铸体薄片观察，证实了本区砂岩粒间溶蚀孔隙发育，凝灰质填隙物发生了强烈溶蚀。
The vitric tuff of Linli in Hunan may become a qualified synthetic material of zeolite molecular sieve after it is pretreated adequate1y.
经适当预处理，湖南临澧玻屑凝灰岩可成为沸石分子筛的合成原料。
The thickness of sedimentary tuff beds are small, but they are widely distributed and their extension along strike are relatively stable.
这些凝灰岩层厚度虽小，但分布较广泛，走向延伸稳定。
The thickness of sedimentary tuff beds are small, but they are widely distributed and their extension along strike are relatively stable.
这些凝灰岩层厚度虽小，但分布较广泛，走向延伸稳定。
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