查询词典 pyroclastic

The identification of volcanic rocks in Hg, especially trachytic pyroclastic rock, is of great significance in finding out the genesis of the Bayan Obo ore deposit and the geological setting for the formation of Bayan Obo Group.

对Hg地层中火山岩，尤其是粗面质火山碎屑岩的确定，对了解白云鄂博矿床的成因和白云鄂博群形成的地质背景有重要意义。

Fumaroles may occur along tiny cracks or long fissures, in chaotic clusters or fields, and on the surfaces of lava flows and thick deposits of pyroclastic flows.

翻译成中文为：喷气孔是火山气体逃逸到大气中的出口，可以沿着细小的裂隙或长的裂缝分布，以紊乱的丛状或呈区域性分布，在熔岩流或火山碎屑流上方出现。

Many lives have been lost to the volcano's frequent eruptions, which are accompanied by high-speed pyroclastic flows and mudflows called lahars.

许多人的生命已经丧失由于火山频繁喷发，这是伴随着高速的火山碎屑流和泥流所谓的火山泥流。

Many lives have been lost to the volcano's frequent eruptions, which are accompanied by high-speed pyroclastic flows and mudflows called lahars.

然而频繁的火山爆发，伴随着高速流动的火山碎屑流以及火山泥流，已经夺走了许多人的生命。

The volcanic successions consist predominantly of basaltic lavas with subordinate intermediate and acid lavas and pyroclastic rocks.

该火山岩系主要由玄武质熔岩组成，其次还包含有中性和酸性熔岩及火山碎屑岩。

Despite the immense pyroclastic flow that scoured these plains after the eruption, the purple flowers of prairie lupines appeared within a few years and accelerated the landscape's recovery.

尽管有巨大的火山碎屑流的冲刷在这些平原爆发后，紫色的花朵的草原羽扇豆属植物出现在几年之内，加速了风景的恢复。

Despite the immense pyroclastic flow that scoured these plains after the eruption, the purple flowers of prairie lupines appeared within a few years and accelerated the landscape's recovery.

在华盛顿的浮石平原，植被又回来了——1980年圣海伦火山那次大喷发灭绝了这里的一切生命。

Agglomerates, green pyroclastic rock, ignimbrites and crystal the involcanic rocks tuffs are rich in SiO2 (74.98%~78.25%) and K2O (4.35%~7.25%); and poor in Al2O3 (10.32%~12.21%),∑FeO (1.07%~1.86%), CaO (0.30%~0.62%), Na2O (1.36%~2.07%), compared to the kind of volcanic rocks in Fujian and Zhejiang.

火山岩从基性到酸性均有分布，以酸性为主。与福建、浙江同类型火山岩相比，集块岩、绿色火山碎屑岩、熔结凝灰岩、熔结晶屑凝灰岩等均是富硅、钾w(SiO274.98%~78.25%、w(K2O)4.35%~7.25%，贫铝、铁、钙、钠w(Al2O310.32%~12.21%、w1.07%~1.86%、w0.30%~0.62%、w(Na2O)

Petrologists,both at home and abroad have spent a lot of time on the classification of pyroclastic rocks, and suc_cessively put forward the classification of pyroclasts, the petrographic and the petrogenetic classification of pyroclasic rocks.

长期以来，火山碎屑岩的分类研究受到了国内外学者的重视，先后提出了火山碎屑物、火山碎屑岩岩性和火山碎屑岩成因分类。

The Middle Devonian Beitashan Formation consists of a series of intermediate-basic volcanic rocks intercalated with more than 100 m thick picritic layer at the bottom, whereas the Middle Devonian Yundukala Fm. is composed of a series of shallow-sea fine-clastic rocks interbedded intermediate rocks and intermediate-basic rocks. The Late Devonian Jiangzierkuduke Fm. includes pyroclastic rocks intercalated with intermediate-basic and intermediate-acid rocks, whereas the Late Carboniferous Batamayineishan Fm. consists chiefly of basalts and basaltic andesites intercalated with tuff, siltstone and carbonaceous shale.

其中中泥盆世北塔山组为一套中基性火山岩，并且底部含有厚度超过100m的苦橄岩；中泥盆世蕴都喀拉组为一套浅海相细碎屑沉积岩夹中性、中基性火山岩；晚泥盆世江孜尔库都克组为火山碎屑岩夹中基性和中酸性火山岩组合；而晚石炭世巴塔玛依内山组以玄武岩和玄武安山岩为主，夹凝灰岩、粉砂岩和炭质页岩。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。