A volcano’s main vent is the weak point in the Earth’s crust where hot magma has been able to rise from the magma chamber and reach the surface. The familiar cone-shape of many volcanoes are an indication of this, the point at which ash, rock and lava ejected during an eruption fal...
In the 1997 disaster thriller "Volcano," Los Angeles Public Transit Chair Stan Olber finds himself carrying an injured passenger off a metro train that's quickly being engulfed by a river of lava. Reaching the end of the car, he sees the volcanic material has already advanced beyond the poin...
Constant observations of the eruption process of Bezymianny volcano and an incessant control of the properties and volume of ejected products enabled us to reconstruct cristallization conditions of the magma in the top parts of the volcanic vent assumedly to a depth of 6–8 km.Substantial ...
The rocky material, consisting of ash and other volcanic debris, that is ejected during an eruption is called tephra. What is the term for the cloud of hot volcanic gases and ash that is forcefully expelled from a volcano during an eruption? The term for the cloud of hot volcanic gases an...
TheViolenceofNature SectionⅡOtherpartsoftheModule 自主预习01 考点探究02 随堂演练03 自主预习01 课前小测高效识记 Ⅰ.重点单词1．___vt.毁坏2．___vt.(火山的)爆发；喷发→eruptionn.3．___adj.以前的→previouslyadv.以前地4．possibilityn.可能；可能性→___adv.可能地5．___adj.吓人的；可怕的→_...
解析 Part 1(Para. 1-2) The writer's job and itsimportance.Part 2(Para. 3-4) The writer's experience ofwatching the volcano eruption.Part 3(Para. 5) The reasons for the writer'senthusiasm about his job. 结果一 题目 II.Divide the passage into three parts and try tofind out the ...
→eruption long(adj.)→length Ⅲ.句式语境仿写 1.The most powerful earthquake in the past 40 years caused a tsunami that crashed into coastlines across Asia yesterday,killing more than 6,500 people in Indonesia, India,Thailand,Malaysia,and at least four other countries. 昨天,40 年来...
Sicily Mount Etna volcano erupted shortly after midnight on July 1 shooting “bombs” of lava(岩浆)on the eastern side of the mountain.The 30 minute eruption could he seen for several miles but did not threaten any nearby villages. Hurricane Hurricane Blas lost strength as it moved over cool...
We describe the internal structure of a multi-kilometre scale mud volcano edifice from the South Caspian Sea using three-dimensional (3D) seismic reflectio... RJ Evans,RJ Davies,SA Stewart - 《Basin Research》 被引量: 37发表: 2010年 History and mechanism of eruption of soda-rhyolite and alka...
and which is expelled from a volcano during an eruption. The source of the heat that melts the rock is known as geothermal energy – i.e. heat generated within the Earth that is leftover from its formation and the decay of radioactive elements. Whenlavafirst erupted from avolcanic vent(se...