查询词典 pyroclastic flow

Based on statistical results and the volcanic lithology and facies map, high cracks surface pore concentrates at diatreme subfacies and cryptoexploisve sub-facies of volcanic conduit facies, inner subfacies of extrusive facies, pyroclastic flow subfacies and base surge subfacies of explosive facies, lower subfacies of effusive facies which are close to the volcanic edifices center. Holes surface pore focus on upper and middle subfacies of effusive facies which locates in the edifice slope.

将物性结果结合平面岩性岩相图，确定出裂缝面孔率高的区域主要集中在火山机构中心附近的火山通道相火山颈亚相和隐爆角砾岩亚相、侵出相内带亚相、爆发相热碎屑流和热基浪亚相、喷溢相下部亚相；气孔面孔率高的区域集中在距离火山口较近的斜坡处，亚相主要为喷溢相上部、中部亚相。

The average greatest grain-sizes of lithic fragments and pumice fragments in pyroclastic flow deposits decrease with increasing distance from the crater, indicating that gravity sorting and mechanical wearing did occur during the transportation of the pyroclastic flow.

火山碎屑流堆积中的岩屑和浮岩的平均最大粒度随着离开火山口距离的加大而减小，反映火山碎屑流搬运过程中存在重力分选和机械磨损作用。

Sub-volcanic rocks include andesitic porphyrite, rhylitic porphyry, cryptoexplosive breccia as well as autobreccia etc.(2) Volcanic lithofacies——through the observation of cores, identification of thin sections and interpretation of well logs and seismic data, there are 8 kinds of lithofacies for the volcanic rocks of Yingcheng Formation are identified: fallout facies, effusion facies, pyroclastic flow facies, base surges facies, lahar facies, eruption-sedimentary facies, subvolcanic facies and extrusion facies.(3) Three types of eruption——i. e. explosion, effusion and surge.(4) Two kinds of eruptive environments——Subaerial (e. g. volcano in Well Shangshen 3) and subaqueous .(5) Three remarkable volcanic apparatus in Shengping-Wangjiatun area——layered, micro-shield and cone volcanoes according to volcanic processes and lithofacies distribution.

次火山岩有安山玢岩、流纹斑岩、隐爆角砾岩及自碎角砾岩等；(2)火山岩相——通过岩芯观察、镜下鉴定、测井与地震资料解释，营城组火山岩中发育8种岩相类型，即爆发空落相、溢流相、火山碎屑流、基底涌流相、喷发沉积相、火山泥石流相、侵出相和次火山相等；(3)火山喷发的形式——有爆发、溢流和涌流三种；(4)火山喷发环境——有陆上(如尚深3井火山)和水下两种；(5)火山机构类型——根据火山作用特点和岩相分布特征，在升平—汪家屯地区识别出三类截然不同的火山机构，即层火山、微型盾火山和渣锥火山。

Most people can easily escape the lava flow, pyroclastic flow, but escape is not so easy.

人们可以轻易地躲开大部分的熔岩流，但躲避火山碎屑流却不那么容易。

But the volcano also produces a more deadly things: pyroclastic flow, that is composed of gas and rocks up to 1000 degrees Fahrenheit Clouds.

但火山还能产生一种更致命的东西：火山碎屑流，即由气体和岩石组成的高达华氏1000度的云状物。

This paper demonstrates the results of grain-size sieve analyses of the millennium pyroclastic flow deposits from Tianchi volcano.

文中对长白山区天池火山千年大喷发火山碎屑流堆积进行了粒度分析。

It includes a chronology of the 79 AD eruption, details of the pyroclastic flow and then compares the events to other modern volcanic eruptions.

该研究是John Dobbins主持的庞培讨论会的一部分，提供了公元39年火山灰的年表，详细阐述了火山灰流的资料，然后对比了当时火山和现代其他火山爆发的异同。

Pyroclastic flow deposits have become a research topic of great interest in volcanology, because they may bring the humanity devastating hazards.

火山碎屑流堆积因其巨大的危害性而成为火山学研究的重要课题之一。

However, this eruption produced an large pyroclastic flow that reached the former capitol of Montserrat, Plymouth and 500 meters into the sea.

首先，伦敦大学的研究人员在1985年到1988年间对7524名年龄在35岁到55岁之间的公务员进行了调查，记录下了他们当时感到无聊的程度。

The eruptive pattern of the Chifeng phase is: Plinian column (the Chifeng pumice fall deposits)→pyroclastic flow (the Changbai pyroclastic flow deposits)-lahar mainly triggerd by pyroclastic flow. The eruptive pattern of the Yuanchi phase is from Plinian column (the Yuanchi pumice and ash fall deposits)→pyroclastic flow (the Bingchang pyroclastic flow deposits).

赤峰期喷发模式为：普林尼式喷发柱－火山碎屑流－火山泥流，主要由火山碎屑流诱发火山泥流；园池期火山喷发模式为：普林尼式喷发柱－火山碎屑流。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。