1.
The tuffaceous blanketed the entire basin.
凝灰岩充填着整个盆地。
2.
A light - colored tuff used in hydraulic cement.
粗面凝灰岩一种用来生产硬水泥的淡色凝灰岩
3.
The main kinds of rocks include carbonate rocks, tuffite, siliceous rocks and quartz sand-stone.
主要岩石类型包括碳酸盐岩、沈积凝灰岩、矽质岩和石英砂岩。
4.
A volcanic rock formed by the welding together of tuff material from an explosive volcanic eruption.
熔结凝灰岩火山喷发后凝灰物质聚集后形成的一种火成岩
5.
Calcareous tufa, a porous or spongy deposit of calcium carbonate found in calcareous mineral springs.
多孔状凝灰岩石灰质的凝灰岩，碳酸钙多孔或有吸收性的沉淀物，出现在石灰性矿物泉中
6.
A rock composed of compacted volcanic ash varying in size from fine sand to coarse gravel.
凝灰岩致密火山灰构成的岩石，大小以细粒至粗砾石不等
7.
The tuffaceous formation, isolated remnants, are about 200-250 ft thick.
凝灰岩构造的局部残存段的厚度约为200-250?铡?
8.
They reported the abnormal uranium content of waters issuing from tuffaceous rocks.
他们发现，从凝灰岩中流出的水中铀含量反常。
9.
The concept holds that uranium is leached by groundwater from tuffeceous rocks.
该理论认为, 来自凝灰岩的地下水淋蚀铀。
10.
LEACHING CHARACTERISTICS OF A TUFF TYPE URANIUM ORE RICH IN FLUORITE
富含萤石凝灰岩类型铀矿石的浸出特性
11.
THE MECHANISM RESEARCH FOR THE CROSSLINKED EMULSION FRACTURING STEADYING THE TUFFACEOUS RESERVOIR
交联乳化压裂液稳定凝灰岩储层机理研究
12.
Experimental Study on Fluid Permeation Evolution in Whole Failure Process of Tuff
凝灰岩破坏全过程渗流演化规律的实验研究
13.
The studies showed that (1) HFW are found in vocalnic tuff while the others in sedimentary rocks;
(1)前者产出层位是陆相火山爆发相的凝灰岩,后者是河湖相沉积岩;
14.
The volcanic rocks belong to the cal-alkaline series and petrochemistry and geochemistry show characteristics of island arc volcanic rocks.
酸性熔岩及同质凝灰岩，属钙碱性系列，且高钾富铝。
15.
Tuffite is formed by the combination of volcanic ashes and carbonate mud.
沈积凝灰岩主要为中远源的火山灰与碳酸盐灰泥混合而成，含石英团块，显斑点构造。
16.
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。
17.
They were deposits of volcanic tuff in Nye County, Nevada;
3处场地分别是内华达州奈伊县的火山凝灰岩矿床层；
18.
THE DEVELOPMENT AND APPLICATION IN AGRICULTURE PRODUCTION OF CIYING PALAEOGENE INTERMEDIATE-ALKALINE TUFF,QUJING
曲靖茨营下第三系中-碱性凝灰岩在农业生产中的开发应用