congealed lava crust是什么意思

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Based on a comprehensive study on faciology, petrology and petrogeochemistry, the ignimbrites widely distributed in Mesozoic volcanic basin in South Jiangxi are divisible into three types namely the clastic flow, the surge flow, and the subvolcanic types, of which the genetic mechanism has been discussed in this paper.

本文通过对赣南中生代火山盆地内广泛分布的熔结凝灰岩类的岩相学、岩石学、岩石 地球化学特征的综合研究，将熔结凝灰岩类划分为碎屑流型、涌流型、次火山型等３种类型，并对其 成因机理进行了讨论。

In pyromerides and ignimbrites,micropores from devitrification are the second largest pore type after the vesicle,accounting for 20%and 30%of the total of all pore types in pyromerides and ignimbrites respectively.

球粒流纹岩、熔结凝灰岩中脱玻化孔是仅次于气孔的第二大孔隙类型,球粒流纹岩和熔结凝灰岩中脱玻化孔分别占相应岩石中所有类型孔隙的20%,30%左右。

In the Mesozoic volcanic belt of Cuntinent of Southeastern China and basin of the Middle-Lower Yangtze River exists tufflava t which was once named as rhyolite, dacite, ignimbrite and liquation ignimbrite.

本文通过对长江中下游地区的溧水、宁芜等火山岩盆地、浙闽粤中生代火山岩带、广西等地的凝灰熔岩地质体的宏观和微观特征研究，总结了凝灰熔岩的相特征，建立了二相成因模式。

The biaxial shear rheological experiment on tufflava with grades II–V is carried out with tunnel surrounding rock of Shenzhen Lianyan Highway.

结合深圳莲盐高速公路隧道围岩中的II～V级凝灰熔岩进行了双轴剪切流变试验,通过试验结果分析和模型辨识,得到不同围岩级别凝灰熔岩的剪切流变规律和流变模型。

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

CHARACTERISTICS AND STRUCTURAL ENVIRONMENT OF THE EARLY PRECAMBRIAN WELDED TUFFS IN XIAOXIANLING DISTRICT, MIDDLE PART OF KANGDIAN AXIS

康滇隆起中段小相岭地区下震旦统熔结凝灰岩的特征及其构造环境

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。

EXPERIMENTAL INVESTIGATION ON SHEAR RHEOLOGICAL PROPERTIES OF TUFFLAVA WITH DIFFERENT GRADES

不同围岩级别凝灰熔岩剪切流变特性的试验研究

The volcano ejected lava and ashes .

火山喷出熔岩和灰。

The tuffaceous blanketed the entire basin.

凝灰岩充填着整个盆地。

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

The rock formed by the cooling and solidifying of molten rock.

熔岩融化的岩石冷却凝固后形成的岩石

A volcano emits smoke, lava and ashes.

火山喷射出烟、 熔岩和灰烬.

Lava and ashes erupted from the volcano

熔岩和火山灰从火山中喷出来。

That volcano cast forth lots of lava and ashes.

那火山喷了出大量熔岩和灰烬。

The volcano erupted lava and ashes

火山喷射出熔岩和火山灰。

A small, solidified fragment of lava.

火山砾熔岩中凝固了的小碎片

Formed by solidification from a molten state.Used of rocks.

火成的由熔化的岩石凝固形成的。用于修饰岩石

Of or relating to rock so formed; pyrogenic.

火成岩的，熔灰岩的按上述方法形成的岩石的，与之有关的；火成的

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。

An opening in the earth's crust through which molten lava, ash, and gases are ejected.

火山地壳的开口，火中喷出熔岩、灰尘和气体

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