凝灰岩

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

~（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

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 .

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 .

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 .

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 .

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

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 .

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

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 .

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 .

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 .

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 .

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 .

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 .

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

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

我国凝灰岩蚀变型高岭土矿床

The kaolin deposits of type of hydrothermal altered tuffs in China

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

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 .

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 .

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.

泥质粉砂岩；（4）凝灰岩。

( s ) pelitic siltstone ( 4 ) tuff .

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 .

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

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 .

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

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 .

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

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 .