凝灰岩
- 名tuff
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掺凝灰岩粉、磷矿渣粉水泥浆体水化的SEM分析
SEM analysis of the hydrate of tuff grout and phosphorus-slag grout
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~(237)Np在破碎凝灰岩和凝灰质砂上的吸附研究
Study of ~ ( 237 ) NP adsorption on crushed tuff and tuffaceous sand
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该理论认为,来自凝灰岩的地下水淋蚀铀
The concept holds that uranium is leached by groundwater from tuffeceous rocks .
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GrownOver长高了莫诺湖的高茎草和灌木林沿着凝灰岩地层的底部生长起来。
Mono Lake 's tall grasses and shrubbery are shown growing along the bottom of this tufa formation .
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熔结凝灰岩的Gd元素含量比熔岩高;
Simultaneously , the content of Gd in tuff rock is higher than that in lava .
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LimestoneBuildup石灰岩的构成凝灰岩是由石灰岩所组成,它是在其周围湖水里的碳酸盐矿物沉淀的副产品。
Made of limestone , tufa forms as a byproduct of the precipitation of carbonate minerals from surrounding water .
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华北青白口系下马岭组凝灰岩锆石SHRIMPU-Pb定年
Zircon SHRIMP U-Pb dating of the tuff bed in the Xiamaling Formation of the Qingbaikouan System in North China
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当海鸥在寻找晚餐时,夕阳在凝灰岩地层上面投射了温暖的光辉。AlabasterandAzure光洁雪白和天蓝色
A sunset casts a warm glow over the tufa formations as seagulls forage for dinner .
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云南东川地区昆阳群黑山组凝灰岩锆石SHRIMPU-Pb年龄及其地层学意义
SHRIMP U-Pb dating and its stratigraphic significance of tuff zircons from Heishan Formation of Kunyang Group , Dongchuan area , Yunnan Province , China
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MoonlitMonoLake洒满月光的莫诺湖凝灰岩,是突出在加利福尼亚州的东部雪乐山的莫诺湖面的不同寻常的岩层,以其超凡脱俗的美丽而闻名于世。
Tufa , the unusual rock formations that jut out of Mono Lake in California 's Eastern Sierra , are famous for their otherworldly beauty .
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结合硫和氢氧同位素测定结果,成矿流体是燕山运动阶段的地表水沿断裂深循环,特别是在富K、富Au的凝灰岩中往复循环作用形成的。
Linking with determined results on sulfur and oxyhydrogen , the mineralization fluid formed from the deep circulation of the surface water along the fracture , especially from circulation repeating in the potassium-and gold-rich tuff .
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沸石凝灰岩的火山灰活性来自凝灰岩中无定性的SiO2和Al2O3。
Structure of zeolite cannot be destroyed by alkalinity in portland cement paste at normal temperature , pozzolanic activity of zeolite_ tuff is from amorphous SiO 2 and Al 2O 3 therein .
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西南某大型水电站左岸坝肩边坡分布有多层二叠系凝灰岩软弱夹层,其中对该边坡稳定性影响最大的是标记为A3的软弱夹层。
There are many weak seams made from tuff of Permian system in the slope of the left dam abutment of a hydroelectric station in southwest China , and of all the weak seams A_3 has the most influence on the stability of the slope .
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加入了火山凝灰岩的罗马混凝土具有超强的抗化学腐蚀性,而维苏威火山地区的粉尘物(Pozzolana)使得罗马混凝土即使在海水中也能够迅速凝结硬化,得益于此,罗马人精心建造了浴场、码头和港口。
Combined with volcanic rocks called tuff , this ancient cement formed a concrete that could effectively endure chemical decay . Pozzolana helped Roman concrete set quickly even when submerged in seawater , enabling the construction of elaborate baths , piers and harbors .
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坝址区右岸岩体,总体上为片理化变质火山角砾岩夹变质凝灰岩(T3xd)和板岩(J2h)构成的薄层(板)状大角度横向倾向坡内地质结构。
The rock mass of the right bank slope in dam area generally are metamorphosed volcanic breccia with metamorphic tuff ( T3xd ) and slate ( J2h ) which consisted the geological structure of transverse wide-angle inclined slope .
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第四纪多孔凝灰岩的发现及其矿物材料学意义
Discovery of Quaternary porous tuff and its significance in mineral materials
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凝灰岩的物理化学性质及其开发利用
Physical and chemical features of tuff and its development and Application
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我国凝灰岩蚀变型高岭土矿床
The kaolin deposits of type of hydrothermal altered tuffs in China
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富含萤石凝灰岩类型铀矿石的浸出特性
Leaching characteristics of a tuff type uranium ore rich in fluorite
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火山碎屑岩,包括火山角砾岩和凝灰岩;
Pyroclastic rocks are mainly composed of volcanic breccia and tuff .
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凝灰岩有时可以具有像珊瑚那样的奇怪形状。
The odd shapes that tufa take can sometimes resemble coral .
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沉积岩有杂砂岩、粉砂岩、凝灰岩、泥质岩等。
The sedimentary rocks are graywacke , siltstone , tuff andpellitie , etc.
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泥质粉砂岩;(4)凝灰岩。
( s ) pelitic siltstone ( 4 ) tuff .
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其中的酸性凝灰岩段金元素平均值110。
The acidic tuff section owns gold element with average content of110 .
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凝灰岩破坏全过程渗流演化规律的实验研究
Experimental Study on Fluid Permeation Evolution in Whole Failure Process of Tuff
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对于峰值应变,熔结凝灰岩、花岗岩的峰值应变随温度的升高而大幅度的增加;
For tuff and granite , the peak strain increases with temperature .
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凝灰岩储层压裂液体系的研究与应用
Research and application of fracturing fluid system of tuff reservoir
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矿体主要赋存于中酸性晶屑凝灰岩到沉凝灰岩中。
Ore bodies is mainly deposited in intermediate-acid crystal tuff and tuffite .
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熔结凝灰岩的液态熔离&泡沫熔岩流成因
Ignimbrites from liquid immiscibility : origination of pumiceous lava flow
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离奇的凝灰岩地层在日落时所呈现出的金黄色外观。
The uncanny tufa formations take on a golden appearance at sunset .