查询词典 pyroclastic

This photo was the most exciting volcano experts is that it captures the formation of a volcanic eruption pyroclastic flows, volcanic peaks from the top downward mobility.

这张照片最令火山专家兴奋的是，它捕捉到火山爆发形成的火山碎屑流，从火山峰顶端向下流动。

The greatest dangers of pyroclastic avalanches are probably heat and suffocation.

火成碎屑崩落的最大危害可能是炽热和窒息作用。

Eruptions typically result in the construction of large, steep-sided, composite or strato volcanoes made up of alternating lava flows and pyroclastic deposits.

爆发通常会导致建造大型陡，片面的，综合或平流火山成立的交替熔岩流和火山的存款。

Whole towns have been wiped out by poisonous gases from volcanoes even before they were hit with pyroclastic flows or lava

在火山熔岩吞噬整个村庄前，火山毒气很有可能已经横扫整个城镇。

A detailed discussion for the features, distribution and the geneses of pyroclastic rock type A located between limestones No .4 and No.5 in Taiyuan formation has been made.

重点分析了赋存于太原组第四——第五灰岩层位间的A层火山事件沉积，提出了火山碎屑水下重力流事件沉积的概念，并建立了形成模式。

Widely accepted as they are, the classification of pyroclasts and the petrographic classification of pyroclastic rocks stipulated by the IUGS Subcommission on the Systematics of Igneous Rocks fail to consider the classification with Chinese characteristics, which was put forward in 1950s to 1960s and improved in 1980s to 1990s and has since been widely used in China.

虽然目前国际地科联火成岩分类命名委员会确定的火山碎屑物和火碎屑岩岩性分类已得广泛推广，但此分类尚有不足之处。

In east adjacent regions Toudaogou of Hami, Zhou Ji yuan found brachiopoda fossil of Early Ordovician in the same stratum of pyroclastic rock with intemediate-basic volcanics: Orthambonites sp., O.

东邻区哈密头道沟，周济元等在相当于火山岩建造的上部层位的火山碎屑岩夹中基性火山岩中发现早奥陶世腕足化石：Orthambonites sp。， O。

L. Volcanic rocks in the Ashele mine are characterized by interbedded basic and acidic pyroclastic rocks, and made up typical bimodat pattern according to 〓 features and Lithochemistry

从地质特征和岩石化学两方面论证了矿区火山岩以基、酸性碎屑岩互层为主要特点，并构成典型的双峰式火山岩组合

Ore deposit, have been studied detailly; the orebody pattern (sedimental bedded ores combined with stringer ores of hydrothermal origin) is also outlined; four metallogenic epoches are devided; the zoning of mineralization (including zones of ores, elements, mineral assemblages and temperature of mineralization) have been depicted; the main types of wall-rock alteration are characterized as propylitization of basic rocks and pyritization-sericitization-silicification of acidic pyroclastic rocks; the origin of ores and seven kinds of main minerals have been studied; and the metamorphism and deformation of orebodies is thought mainly due to the shearing and the intrusion of subvolcanic rocks

研究了七个矿化带特别是I号矿床的矿床地质特征，描绘了矿体的双层结构(沉积矿石与热液充填交代的细网脉状矿石)，划分了四个成矿期次，区分了矿化分带(包括矿石组构的成因分带、元素分带、矿物组合分带、温度分带)，指出了围岩蚀变的主要特征是细碧岩青盘岩化而石英角斑质凝灰岩黄铁绢英岩化；对矿石及七种主要矿石矿物的成因作了研究；探讨了矿体的变质、变形，指出韧性剪切及次火山岩侵入的热力作用和应力作用是导致矿体变质变形的主要原因

Over one hundred sixty volcanic cones,pyroclastic sheet,river valley lava and eight maars with phreatomagmatic eruption genesis distribute of Longgang volcano,Jilin Province.The volcanic rock of Longgang volcano is trachybasalt with very similar chemical composition(SiO2=48-50%).

龙岗火山区分布160多个玄武质火山渣锥，以及火山碎屑席、河谷熔岩和8个射气岩浆喷发的低平火山口－龙湾，所有火山岩为单一钾质粗面玄武岩(SiO2变化于48-50%)。

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。