volcano_eruption
火山喷发(volcanic eruption)
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3. 喷发柱的塌落 喷发柱在上升的过程中，携带着不同粒径和密度的碎屑物，这些碎屑物依着重力的大小，分 别在不同高度和不同阶段塌落。决定喷发柱塌落快慢的因素主要有四点： （1）火山口半径大的，气体冲力小，柱体塌落的就快； （2）若喷发柱中岩屑含量高，并且粒径和密度大，柱体塌落的就快； （3）若喷发柱中重复返回空中的固体岩块多，柱体塌落的就快； （4）喷发柱中若有地表水的加入，可增大柱体的密度，柱体塌落的就快。反之，喷发柱在 空中停留时间长，塌落的就慢。 火山喷发并非千遍一律，像夏威夷基拉韦厄火山那样的喷发，事前熔岩已静静地流出，由于 熔岩流动缓慢，因而只破坏财产而没有危及生命。而像1883年印尼喀拉喀托火山那样的火山碎屑 喷发或蒸气爆炸（或蒸气猛烈爆发），则造成人员的重大伤亡。 在火山喷发过程中，挥发性物质充当了重要的角色，它不仅是火山喷发的产物，更是火山喷 发的动力。从岩浆的产生到火山喷发的整个过程，挥发性物质的活动无一不在起作用。 英国科学家认为超级火山喷发可能毁灭人类 模拟毁灭性超级火山喷发 英国科学家认为：人类有可能在一次超强度的火山喷发中毁灭。大不列颠公共大学的斯蒂芬· 塞尔 夫在一次答电子杂志记者问时称，目前还没有任何办法可以阻止这种灾难。当前科学家们正在忙 着制定种种抵抗“外部威胁”的战略，比如说如何阻止小行星同地球相撞，却很少去考虑主要危 险有可能来自地球内部。 地球物理学家们断言，有些火山的喷发强度要比过去的大好几百倍，而且地球在出现文明前 不久曾经历过如此大规模的灾难。 美国地质学家早些时候曾在黄石国家公园发现了不太深的火山灰死层，认为其形成的原因是 发生在62万年前的一次超级火山喷发，结果是至今这里还可以见到一些漏斗形的大坑，它们都是 那些毁灭性火山喷发后形成的破火山口。 在写给英国政府自然灾害工作小组的报告中对这种超级火山喷发所造成后果曾有过详细的描 述———很大一片地域会被熔岩覆盖，而且撒向大气层的尘土和灰烬将会使不少阳光到达不了地 球表面，这无疑会使全球性的气候发生变化。 据纽约大学的迈克尔· 拉姆皮诺称，发生于7.4万年前的苏门答腊火山的超强度喷发曾导致全 球变冷和北半球3/4的植物毁于一旦。
介绍火山喷发(英语)
3. ash can cause respiratory diseases（呼吸道疾病）
Benefits
1. many of the volcanic materials have important industrial and chemical uses. 2. Volcanic ash that has been weathered (风 化)greatly improves soil fertility.
How much do you know about volcano eruption (火山喷发)?
————2009011219 李亮
Part one：what is volcano?
Some words about volcano：
active volcano 活火山 extinct volcano 死火山
5.Mount St Helen's (圣海伦斯 )volcano
6.Monte Etna(埃特纳 ) volcano
7. Sangay(桑盖 ) National Park volcano
Part four: the harms and benefits of volcano
Harm 1.Cause great bad impact on the global climate 2. Ash and rain mixed form mudslides（泥石流）
Volcanic classification
1. active volcano (活火山) 2. extinct volcano （死火山） 3. dormant volcano （休眠火山）
Eruption type
1. Quiet eruption （宁静式喷发）
火山爆发岩浆喷出英语作文
Volcanic eruptions are one of the most spectacular and powerful natural phenomena on Earth.When a volcano erupts,it is the result of intense geological activity deep within the planet.Here is a detailed description of what happens when a volcano erupts and the process of magma being expelled:1.Preeruption Seismic Activity:Before a volcanic eruption,there is often an increase in seismic activity.This is due to the movement of magma as it rises towards the Earths surface.Seismographs can detect these tremors,which can be an early warning sign of an impending eruption.2.Magma Formation:Magma is formed when the Earths mantle melts due to high temperatures and pressures.This molten rock material is less dense than the surrounding solid rock,causing it to rise towards the surface.3.Magma Chamber:The magma collects in a magma chamber,which is a reservoir beneath the volcano.Over time,the pressure in the chamber increases as more magma accumulates.4.Eruption Trigger:An eruption can be triggered by several factors,including the influx of more magma into the chamber,the release of dissolved gases,or the weakening of the overlying rock due to geological processes.5.Magma Ascent:As pressure in the magma chamber builds,the magma forces its way up through the volcanic conduit,which is a pathway from the chamber to the surface.6.Eruption:When the magma reaches the surface,it is called lava.The eruption can be explosive or effusive,depending on the viscosity of the magma and the amount of gas it contains.Explosive eruptions produce ash,pyroclastic flows,and other volcanic materials,while effusive eruptions result in the slow outpouring of lava.va Flows:Once the lava reaches the surface,it flows downhill,creating lava flows. These flows can travel great distances and can cause destruction in their path,depending on their speed and volume.8.Ash Clouds and Pyroclastic Flows:In explosive eruptions,the magma can fragment into small particles,creating ash clouds that can be carried by the wind for hundreds or even thousands of kilometers.Pyroclastic flows are fastmoving currents of hot gas and volcanic matter that can travel at high speeds and cause widespread devastation.9.Posteruption Activity:After an eruption,the volcano may continue to emit gases andsmall amounts of lava.The formation of new land can occur as lava cools and solidifies, and ash can contribute to the formation of fertile soils.10.Longterm Effects:Volcanic eruptions can have longlasting effects on the environment,climate,and human societies.They can cause shortterm climate changes due to the reflection of sunlight by ash particles in the atmosphere,and they can lead to the creation of new ecosystems as life returns to areas affected by eruptions.In conclusion,a volcanic eruption is a complex process that involves the movement, accumulation,and expulsion of magma from the Earths interior.The resulting lava flows, ash clouds,and pyroclastic flows can have significant impacts on the surrounding environment and human activities.Understanding these processes is crucial for monitoring volcanic activity and mitigating the risks associated with eruptions.。
volcano_eruption推荐文档
Part four : Distribution of volcanoes
1、The Pacific rim 环太平洋火山带 2、The ridge volcano 中洋脊火山 3、The rift valley volcanic belt 东非大裂谷火山带 4、The Mediterranean ─ Himalayan volcanic belt 地中海─喜马拉雅火山带
Llullaillaco, Argentina, Chile
? This is one of the world's highest active volcanoes and it is located in the Atacama Desert, which is one of the most driest place on earth. There is a lot of debris around the volcano and is covered with snow most of the time. There are avalanche deposits which are related to the southern flows of the Lava from the volcano. There are no activities, which can be observed now in this volcano. This volcano last erupted in 1877. The Llullaillaco is also famous for the 500-year-old mummies found on it in 1999. These mummies were preserved very well due to the cold, arid and hypoxic environment on the mountain.
新概念英语第二册Lesson67Volcanoes资料
Lesson 67
Volcanoes
Today we'll listen to a story about the experiences of a volcano expert.
Fist let’s see some of the word’s famous
Volcanoes
1.volcano [vɒl‘keɪnəʊ] 火山
Notice sb do sth-----------------Jim broke the car window and ran away
A river of 是一种暗语的修辞手法。 把岩浆比喻成河流，暗示火山喷发的很猛烈，有大量岩浆喷出来。
It threatened to surround him completely, but Tazieff
He was puzzled at a math problem, but at last he could solve it with the help of his teacher.
could
was/were able to 过去的能力
manged to do sth
泛指过去的能力，不能用于特定的 某一能力 包含could,此外还可表示“成功的 做了某事”
成功的做了某事，更强调虽然困难 很大，但仍然完成了
Succeeded in doing sth 成功的做了某事
判断正误
He was puzzled at a math problem, but at last he was able to solve it with the help of his teacher.
1. Who is Haroun Tazieff? (A Polish scientist. ) 2. What has he spent his lifetime doing? (Studying active volcanoes and deep caves. ) 3. Where did he go in 1948? (Lake Kivu. ) 4. Why did he go there? (To observe a new volcano. ) 5. Where was Tazieff able to set up camp? (Very close to the volcano. ) 6. What did he manage to do? (To take a number of brilliant photographs. ) 7. He couldn't stay near the volcano for very long, could he? (No, he couldn't. ) 8. What did he notice coming towards him? (A river of liquid rock. ) 9. What did it threaten to do? (To surround him completely. ) 10. Was Tazieff surrounded or did he manage to escape? (He managed to escape. ) 11. When was he able to return? (When the volcano had become quiet. )
火山的爆发：地球的脉动 英语作文
Volcanic Eruptions:The Pulse of the EarthVolcanic eruptions,one of nature's most powerful and awe-inspiring phenomena,serve as a vivid reminder of the Earth's dynamic inner workings.These natural events,characterized by the explosive release of magma,gases,and ash from beneath the Earth's crust,play a crucial role in shaping our planet's landscape and atmosphere.This essay explores the significance of volcanic eruptions,highlighting their role in the Earth's geological processes,their impact on the environment and human societies,and the importance of monitoring and studying these natural phenomena.The Geological Significance of Volcanic EruptionsVolcanic eruptions are a key component of the Earth's geology,acting as a mechanism for the planet to release internal heat and pressure.The movement of tectonic plates often triggers these eruptions,especially at divergent and convergent boundaries where plates move apart or collide. As magma rises to the surface,it cools and solidifies,forming new crust and shaping the Earth's topography.Over millions of years,volcanic activity has created mountains,islands,and entire landmasses, demonstrating the planet's ever-changing nature.Environmental Impact and FertilityWhile volcanic eruptions can be destructive,they also play a vital role in replenishing the Earth's soils with nutrients.The ash and lava released during an eruption are rich in minerals that,over time,contribute to soil fertility,supporting plant growth and agriculture.For instance,the fertile soils of the Italian countryside and the Hawaiian Islands owe their richness to centuries of volcanic activity.Additionally,volcanic gases such as carbon dioxide contribute to the greenhouse effect,influencing the Earth's climate and atmospheric composition.Hazards and Human SocietyThe immediate effects of volcanic eruptions can be devastating for nearby communities,causing loss of life,destruction of property,and displacement of va flows,ash falls,and pyroclastic flows can obliterate everything in their path.Moreover,the release of volcanicash into the atmosphere can lead to respiratory health issues,disrupt air travel,and affect climate patterns globally.The eruption of Mount Tambora in1815,for example,led to the"Year Without a Summer," causing widespread crop failures and famine across the globe. Monitoring and ResearchGiven the potential hazards associated with volcanic eruptions, monitoring and research are crucial for predicting and mitigating their impact.Volcanologists use a variety of tools,including seismographs,gas sensors,and satellite imagery,to monitor volcanic activity and provide early warnings to at-risk communities.Understanding the signs of an impending eruption,such as increased seismic activity or changes in gas emissions,can save lives and minimize economic damage. ConclusionVolcanic eruptions are a testament to the Earth's vitality,reminding us of the planet's constant evolution and the forces that shape our natural world.While they pose significant risks to human society,they also enrich our environment,contributing to the cycle of renewal that sustains life on Earth.By studying and monitoring volcanic activity,we can better appreciate the complexity of our planet and learn to coexist with these powerful natural phenomena.In embracing the pulse of the Earth,we acknowledge our place within a much larger,ever-changing system.。
火山爆发英语作文续写
火山爆发英语作文续写Volcano Eruption。
Volcano eruption is a natural disaster that can cause great damage to the environment and human life. It occurs when magma, ash, and gas are released from the earth's crust and can cause destruction in different ways, including lava flows, ash fall, and volcanic gases.The eruption of Mount Vesuvius in AD 79 is one of the most famous examples of a volcanic eruption. It destroyed the Roman cities of Pompeii and Herculaneum, killing thousands of people and burying the cities under ash and pumice.In modern times, the eruption of Mount Pinatubo in the Philippines in 1991 was one of the most significant volcanic eruptions of the 20th century. It caused widespread damage to the surrounding area and had a significant impact on the global climate.Volcanic eruptions can also have positive effects on the environment. They can create new land, enrich soil, and provide nutrients for plants and animals. However, the negative effects of volcanic eruptions far outweigh the positive ones.In recent years, scientists have made significant progress in predicting volcanic eruptions. This has helped to reduce the impact of these natural disasters on human life and property.In conclusion, volcanic eruptions are a natural phenomenon that can cause significant damage to the environment and human life. While scientists have made progress in predicting these events, it is important to take precautions and be prepared for the worst-case scenario.。
三年级作文火山爆发
三年级作文火山爆发示例回答如下1:In English:A volcano eruption is a natural disaster that can be both terrifying and fascinating. Imagine being in the third grade and tasked with writing an essay on such a topic. How would a third grader describe the explosive power of a volcano and the destruction it can cause?In their innocent and imaginative minds, third graders might depict a volcano eruption as a giant mountain that suddenly bursts open, spewing out hot lava, ash, and rocks. They might mention how the lava flows down the mountain, destroying everything in its path, while the ash darkens the sky and covers the land in a thick layer of dust.To a third grader, the idea of a volcano eruption might seem like something out of a movie or a storybook. They might draw pictures of people running away from the erupting volcano, their faces filled with fear and panic. They might write about how the ground shakes and rumbles before the volcano finallyexplodes, sending debris flying in all directions.Despite the frightening nature of a volcano eruption, there is also a sense of awe and wonder that comes with witnessing such a powerful force of nature. Third graders might marvel at the sheer size and strength of a volcano, and the way it can change the landscape in an instant.Overall, writing an essay on a volcano eruption in the third grade can be a challenging yet rewarding experience. It allows students to explore the natural world, learn about the power of nature, and hone their writing skills in the process.中文:火山爆发是一种既可怕又令人着迷的自然灾害。
火山爆发防护英语作文
火山爆发防护英语作文下载温馨提示:该文档是我店铺精心编制而成，希望大家下载以后，能够帮助大家解决实际的问题。
文档下载后可定制随意修改，请根据实际需要进行相应的调整和使用，谢谢!并且，本店铺为大家提供各种各样类型的实用资料，如教育随笔、日记赏析、句子摘抄、古诗大全、经典美文、话题作文、工作总结、词语解析、文案摘录、其他资料等等，如想了解不同资料格式和写法，敬请关注!Download tips: This document is carefully compiled by theeditor. I hope that after you download them,they can help yousolve practical problems. The document can be customized andmodified after downloading,please adjust and use it according toactual needs, thank you!In addition, our shop provides you with various types ofpractical materials,such as educational essays, diaryappreciation,sentence excerpts,ancient poems,classic articles,topic composition,work summary,word parsing,copyexcerpts,other materials and so on,want to know different data formats andwriting methods,please pay attention!A volcano eruption is a terrifying natural disasterthat can cause widespread destruction and loss of life. When a volcano erupts, it spews out hot lava, ash, andtoxic gases, posing a grave danger to anyone in its vicinity. Therefore, it is crucial to have effective measures in place to protect ourselves from the devastating effects of a volcanic eruption.During a volcanic eruption, one of the most important things to do is to evacuate the affected area immediately. People must leave their homes and move to designated safe zones away from the volcano. This is essential to ensure their safety and minimize the risk of being harmed by falling debris or inhaling toxic gases. It is crucial to follow the instructions given by authorities and not to delay the evacuation process.In addition to evacuation, wearing protective gear is also crucial during a volcanic eruption. This includeswearing masks to filter out ash particles and goggles to protect the eyes from irritation. Wearing long-sleeved clothing and sturdy shoes can also provide some protection from hot lava and sharp volcanic rocks. It is important to remember that the volcanic ash can be harmful if it comes into contact with the skin, so covering exposed areas of the body is essential.Furthermore, staying informed about the current situation is vital during a volcanic eruption. It is essential to listen to updates from local authorities and follow their instructions. This can help individuals make informed decisions about their safety and well-being. Additionally, having access to a battery-powered radio or a mobile phone with a reliable network connection can provide valuable information about evacuation routes, shelter locations, and any other important updates.When a volcano erupts, it is not only the immediate dangers that we need to be aware of, but also the long-term effects. The volcanic ash can cause respiratory problems and other health issues, even after the eruption hassubsided. Therefore, it is important to take necessary precautions to protect ourselves from these lingering effects. This may include staying indoors as much as possible, using air purifiers to filter out ash particles, and seeking medical attention if any symptoms arise.In conclusion, protecting ourselves from the devastating effects of a volcanic eruption requires a combination of immediate actions and long-term precautions. Evacuating the affected area, wearing protective gear, staying informed, and taking necessary precautions to minimize the health risks are all crucial steps in ensuring our safety during such a catastrophic event. It is important to always be prepared and follow the guidance of local authorities to mitigate the impact of a volcanic eruption.。
描述火山喷发时的景象的英语作文非说明文
描述火山喷发时的景象的英语作文非说明文全文共3篇示例，供读者参考篇1Volcano Eruption!Wow, I never imagined I would actually see a volcano erupt with my own eyes! It was the most amazing and terrifying thing I've ever witnessed. Let me tell you all about it.Last week, my family and I went on a camping trip to the national park near the big volcano mountain. My parents said it was a dormant volcano, which means it hasn't erupted in a very long time. But boy were they wrong about that!We had just finished setting up our tent when I noticed something strange happening on the mountain top. At first, I thought maybe my eyes were playing tricks on me. But then I heard a deep rumbling sound, like thunder, but it was coming from the ground beneath my feet!"Mom, Dad, something weird is going on with that mountain!" I shouted, pointing up at the peak.That's when we saw it - a huge plume of thick black smoke billowing up from the crater at the top! The smoke kept getting bigger and bigger, spreading out like a massive dark cloud."Oh my goodness, it's erupting! The volcano is erupting!" my dad yelled.We all just stood there, staring in shock and awe as the incredible force of nature unleashed before our eyes. Flashes of red and orange light started bursting through the black smoke cloud, like a monster's fiery breath.Suddenly, searing hot rocks and debris started shooting out of the crater like missiles, raining down the sides of the mountain. It looked like the whole mountaintop was exploding! The thunderous booms and rumbling were so loud, I've never heard anything like it."Quick, get back to the car! We need to get as far away as possible!" my mom screamed over the deafening roars.We scrambled back to our SUV, throwing our camping gear in wildly. I could see other campers doing the same, looks of terror on their faces as the volcano's fury grew more intense. Plumes of ashy smoke were raining down thick, wet clumps of muddy debris all around us. It got so dark, almost like night.By the time we pulled out of the campground and sped down the road leading away from the park, the entire valley was choked in a suffocating blanket of black volcanic smoke. The cars ahead had their headlights and hazard lights blinking through the hazy darkness. It was like something out of an apocalypse movie!As we drove further away, the smoke gradually started to clear. But when I looked back towards the volcano's peak, it was still violently erupting. Fresh, searing orange lava was now oozing down the mountain's slope like glowing rivers of liquid fire.Molten hot rocks and boulders exploded skyward in bursts of red and yellow sparks. The lava streams grew thicker, carving blazing paths of destruction through the forests and meadows on the mountain face. It was both beautiful and terrifying to watch.I couldn't believe the sheer power and force of the eruption. The ground shook with each thunderous blast. It made me feel so small and insignificant compared to the mighty power of Mother Nature.Even from several miles away, we could see the bright orange glow of the fresh lava contrasted against the thick blackplumes of ash and smoke. It looked like the whole sky was on fire!Once we were a safe distance from the erupting volcano, we pulled over to the side of the road to watch the incredible light show. Other cars did the same, with people standing outside snapping pictures and recording videos.I stuck my head out the window, ash raining down on my face and hair. The air smelled like a campfire, mixed with sulfur and burnt grass. I kept expecting to see dinosaurs running down the fiery lava rivers!For hours, the volcano kept spewing lava, rocks, ash, and billowing smoke clouds into the sky. The bright orange lava glowed brighter against the black night. Scientistic predicted it would be one of the biggest, most destructive eruptions in decades.Even after we drove all the way back home to our city, I could still see the hazy cloud of ash hanging over the volcano's peak in the distance. What an adventure! I'll never forget witnessing the raw power and beauty of that volcanic eruption. It gave me a whole new respect and appreciation for the amazing forces of nature on our planet Earth.Someday, I'll tell my own kids or grandkids about the time I was there, watching a real volcano blow its top in person. I bet they'll think I'm making it all up - it was just too epic and unbelievable! But I have the pictures and videos to prove it. A night I'll never forget as long as I live!篇2The Day the Mountain ExplodedIt was just a regular Saturday morning. I was playing outside with my best friend Jake when we heard the most gigantic BOOM! It shook the whole ground and made our ears ring."What was that?!" Jake yelled, his eyes wide.I looked over towards the big mountain in the distance. Thick black clouds were pouring out of the top!"Oh no, I think the volcano is erupting!" I shouted back.We stared in shock and amazement as more and more smoke billowed up into the sky. The black clouds rapidly grew bigger and bigger, towering over the mountain peak. Suddenly, bright red streaks began flashing amidst the darkness."Whoa, do you see that glowing red lava?!" Jake exclaimed, jumping up and down. "This is so cool!"I nodded, feeling a mixture of excitement and nervousness. The sight was incredible, but also a little scary. What if the volcano got really angry and explosive?As if on cue, the entire mountain suddenly trembled and let out a deafening roar. A blinding beam of searing red lava burst from the very top, shooting hundreds of feet into the air! We watched in awe as the fiery stream of molten rock arched over the crater and began raining back down.Glowing orange blobs the size of cars came crashing down the mountainside, smashing into the forests and meadows below. Trees shattered and boulders were tossed aside like pebbles as the lava bombs obliterated everything in their path. Thick black smoke and ash rapidly engulfed the lower slopes."Whoa, did you hear that noise? It's like the mountain is growling!" Jake yelled over the rumbling.He was right - a deep, thunderous growling sound was growing louder and louder as the eruption reached incredible heights. I could feel the vibrations pulsing through my body with every earth-shaking roar.Without warning, a meteor shower of red-hot lava rocks and fiery debris began shooting from the crater mouth in alldirections. Incandescent chunks and blobs of liquid fire whizzed through the air, some landing dangerously close by."Get down!" I shouted, pulling Jake behind a crumbling brick wall as fist-sized lava bombs pelted the ground around us. Acrid smoke stung my eyes and lungs.The furious display of mountain fury swelled even higher as towering clouds of ash and pumice mushroomed miles into the sky. Day turned to night as the thick, choking particulates blocked out the sun's rays.Searing winds laden with dust and poisonous gases howled across the landscape like a freight train. I covered my face, coughing violently, as the scalding hurricane blasted us with shrapnel and dispersed debris.For several hours, the colossal volcano angrily spewed its super-heated insides in a series of catastrophic eruption pulses and explosions. The deafening roars and pyrotechnic light show were both terrifying and mesmerizing to witness.Finally, as the earth's deep rumbles slowly subsided, an eerie stillness and calm settled over the apocalyptic scene. Where the majestic peak had once stood proud, only a gaping mawremained amidst the billowing waste clouds, like a smoldering wound in the earth's surface.Jake and I emerged from our hiding spot, gingerly stepping through the thick blankets of ash covering the ground. Unearthly groaning sounds occasionally echoed from the crater as the volcano continued weakly venting.All around us, the landscape had been utterly transformed and flattened by the eruption's devastating power. Lava flows snaked across meadows, steaming and hardening into rivers of blackened rock. The horizon was obscured by an ominous veil of gray as volcanic haze and aerosols dispersed into the atmosphere.Despite the horrific destruction, I couldn't help but marvel at the incredible forces of nature we had just witnessed firsthand. The sheer power and energy released by the eruption was almost beyond comprehension. Yet the earth's interior volcanic furnace had unleashed its fury in an awe-inspiring reminder of how small we are in this world.As we carefully picked our way back home through the end-of-days scenery, I felt both amazed at the volcano's display of fireworks and relieved to have survived Mother Nature'sawesome power. It was definitely the most mind-blowing, terrifying, and exciting experience of my life!篇3The Day the Mountain ExplodedI'll never forget the day the mountain exploded. It was just an ordinary Saturday morning. My little brother Timmy and I were watching cartoons and eating cereal when we heard the most terrifying noise. It sounded like a thousand thunderstorms all crashing together at once! BOOOOOOOM!"What was that?" I yelled, my heart pounding. Timmy's eyes were as big as pancakes.Mom came running into the room. "Kids, we need to get out of here right now!" she shouted, sounding really scared.I looked out the window and couldn't believe my eyes. Our neighbor's house across the street was shaking like a bobblehead doll! Clouds of thick gray dust were billowing through the air, making it hard to see."Mom, what's happening?" I asked, my voice trembling."It's the volcano, sweetie," she said, pulling us toward the front door. "It's erupting!"We ran outside just as a deafening roar echoed across the neighborhood. I spun around and there it was - the most insane, unbelievable sight I've ever seen in my whole life. Mount Rainier, the massive volcano looming over our town, was quite literally exploding!A gigantic, mushroom-shaped cloud of ash and smoke was blasting from the peak, reaching higher and higher into the sky. The cloud boiled and churned like the angriest storm cloud ever. It looked almost alive, like a terrifying ashy monster exhaling its doom across the land.As if that wasn't crazy enough, a blazing stream of red-hot lava came gushing from the volcano's mouth. It tumbled down the mountain's flanks, racing through the forests and setting everything in its path ablaze. Towering walls of fire roared as the lava devoured trees, houses, cars - anything in its way. I could feel the intense heat searing my face even from miles away.The ground shuddered and groaned under our feet as the volcano violently convulsed again and again. Thundering explosions ripped through the air as superheated clouds of ash and debris shot skyward in rapid bursts. It looked like the mountain was coughing up its entire insides!"Run!" Mom screamed. We turned and fled, the air rapidly filling with choking volcanic dust. Globs of smoldering ash and rock pelted the streets around us.In the chaos, I looked back one last time and my jaw dropped. An avalanche of red-hot lava and debris the size of a tsunami wave was cascading down the volcano, obliterating everything in its path. The deafening roar of twisting metal, shattering glass, and crumbling homes was utterly terrifying.For the next few weeks, the volcano's wrath smothered our town and the surrounding areas in a blanket of gloomy gray doom. Day turned to night under the thick plumes of ash clotting the sky. Drifts of volcanic dust piled up like dirty snow, burying roads, yards, and houses. The air reeked of rotten eggs and sulfur.At school, we had to wear dust masks all day. Everything was coated in a thick, gritty layer of ashy muck. At recess, no one wanted to go outside and play in the yucky volcanic fallout. I've never been so glad for summer vacation to start!Luckily, after a few weeks, the eruption began to subside and the skies slowly cleared. But the landscape around Mount Rainier had been drastically transformed. Whole forests, roads, and neighborhoods we knew so well had simply vanished, buriedunder millions of tons of ash and volcanic debris. Miles of charred, twisted wreckage radiated outward from the crater in a gamma pattern of utter devastation.The eruption was one of the largest volcanic events in US history. Over a billion tons of ash was blown across the Pacific Northwest, causing untold damage. Fortunately, thanks to advance warning systems, the loss of life wasn't as catastrophic as it could have been.But I know I'll never forget that fateful day - when the ground shook violently, the skies went dark, and the awesome, destructive power of nature was unleashed before my very eyes. The day the mountain exploded is forever seared into my memory.。
volcano_eruption(推荐文档)
drops, crops, serious can cause species extinct.
Destruction of the environment: volcanic eruptions pumped heavy amounts of ash and debris with formation can washed out roads, Bridges and flooded nearby villages and cities, makes millions homeless. Mud, rocks formed mud can like debris.
A volcano is an opening, or rupture, in the surface or crust of the Earth or a planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface.
Part 5
Effects of volcanic eruption
Climate: when a volcano erupts outbursts of massive ash and volcanic gases to climate cause great, influence, volcanic eruption in the poisonous gas sulphur content and chlorine, form acid rain, dark days and the storm, even affect local residents mud rain for many months. Ash and volcanic gases be sprayed high up in the air, they will go with the
火山爆发英语作文
火山爆发英语作文In the heart of the earth, hidden beneath layers of rock and ash, lie the fiery chambers of volcanoes. These colossal forces of nature, dormant for centuries, can suddenly awaken with a fury that shakes the earth and sends ash and smoke billowing into the sky. The volcano's eruption is a spectacular display of raw power, one that has fascinated and terrified mankind for millennia.The build-up to a volcanic eruption is often slow and subtle. Geologists study the signs, from minor earthquakes and changes in ground elevation to the appearance of new gas vents and a rise in temperature. These are indicators of the magma, molten rock beneath the surface, slowly working its way towards the crater. As the pressure builds, so does the danger, until finally, the volcano explodes in a violent display of nature's might.The eruption itself is a thundering cacophony of sound and fury. Rocks and ash are hurled hundreds of feet into the air, while lava flows like a river of fire down the volcano's slopes. The heat is intense, enough to melt rocks and incinerate anything in its path. The ash cloud, a toxicmixture of rock, gas, and dust, can spread for miles, affecting the climate and even causing respiratory problems for those who inhale it.The impact of a volcanic eruption is felt far beyond the immediate vicinity of the volcano. The ash cloud can disrupt air travel, blocking airways and causing widespread cancellations. The lava can destroy property and infrastructure, while the gases released can have a significant impact on the environment, causing acid rain and affecting global temperatures.Despite its destructive power, the volcano's eruptionis also a vital part of the earth's natural cycle. The ash and lava provide fertile ground for new plant growth, while the gases released help to balance the earth's atmosphere. Volcanoes also play a role in geological processes, shaping the landscape and creating unique ecosystems.In conclusion, the volcano's eruption is a powerful reminder of the forces that lie beneath the surface of the earth. It is a phenomenon that combines beauty and destruction, awe and fear. As we stand in awe of its fury, we should also remember that volcanoes are not just forcesof destruction; they are also agents of creation, shaping the world in which we live.**火山之怒：震撼大地的自然现象**在地球的心脏，隐藏在岩石和灰烬的层层之下，是火山炽热的熔炉。
关于火山喷发的五年级英语作文简单
关于火山喷发的五年级英语作文简单Volcanic Eruptions: A Captivating Natural PhenomenonVolcanoes are fascinating natural wonders that have captivated the human imagination for centuries. These powerful geological features are the result of the Earth's internal processes, where molten rock, gases, and other materials erupt from the planet's surface. One of the most awe-inspiring and potentially destructive aspects of volcanoes is their eruption, a phenomenon that can have far-reaching consequences.The formation of volcanoes is a complex process that begins deep within the Earth's interior. The Earth's crust is divided into several large plates that are constantly moving and interacting with one another. In areas where these plates meet, known as tectonic plate boundaries, the movement and collision of the plates can create a pathway for the upwelling of magma, the molten rock that lies beneath the Earth's surface. As the magma rises towards the surface, it can create a volcanic mountain or volcano.When a volcano erupts, it can release a variety of materials, including lava, ash, and gases. Lava is the term used to describe the moltenrock that flows out of the volcano during an eruption. Lava can be extremely hot, with temperatures ranging from around 700 to 1,200 degrees Celsius (1,300 to 2,200 degrees Fahrenheit). As the lava cools and hardens, it can create a variety of fascinating geological features, such as lava flows, lava tubes, and volcanic cones.Volcanic ash is another common byproduct of an eruption. Ash is composed of tiny fragments of rock, mineral, and volcanic glass that are ejected into the air during an eruption. These particles can range in size from fine powder to larger fragments, and they can be carried great distances by the wind. Volcanic ash can pose a significant threat to both people and infrastructure, as it can clog machinery, damage buildings, and even disrupt air travel.In addition to lava and ash, volcanoes can also release large quantities of gases, such as water vapor, carbon dioxide, and sulfur dioxide. These gases can have a significant impact on the environment, as they can contribute to air pollution and even affect the Earth's climate. For example, the eruption of Mount Pinatubo in the Philippines in 1991 is believed to have temporarily cooled the Earth's average surface temperature by as much as 0.5 degrees Celsius (0.9 degrees Fahrenheit) due to the release of sulfur dioxide into the atmosphere.The potential for volcanic eruptions to cause widespread destructionis well-documented throughout history. One of the most famous and devastating volcanic eruptions was the eruption of Mount Vesuvius in 79 AD, which buried the ancient Roman city of Pompeii under layers of ash and pumice. More recently, the eruption of Mount St. Helens in the United States in 1980 caused significant damage and loss of life, with a death toll of 57 people.Despite the potential risks, volcanoes also play an important role in shaping the Earth's landscape and supporting various ecosystems. The mineral-rich soil that is created by volcanic activity can be highly fertile, supporting the growth of lush vegetation and providing a habitat for a diverse range of plant and animal species. Additionally, the heat and energy generated by volcanic activity can be harnessed for various purposes, such as the production of geothermal energy.In conclusion, volcanic eruptions are a captivating and powerful natural phenomenon that have had a profound impact on the Earth and its inhabitants throughout history. While they can be dangerous and destructive, volcanoes also play a vital role in the planet's geological and ecological processes. By understanding the science behind these remarkable features, we can better prepare for and mitigate the risks associated with volcanic activity, while also appreciating the beauty and wonder of these natural wonders.。
火山爆发 英语作文
护肤品使用方法护肤是现代人生活中非常重要的一部分，正确的护肤方法不仅可以保持肌肤的健康状态，还可以延缓肌肤的老化过程。
而正确的使用护肤品也是非常关键的一环。
下面就来介绍一下护肤品的正确使用方法。
首先，洁面是护肤的第一步。
选择适合自己肤质的洁面产品非常重要，清洁力要温和但又要彻底。
在洗脸时，用温水将脸部彻底打湿，取适量洁面产品在手心搓揉起泡，再均匀地涂抹在脸上，用指腹轻轻打圈按摩，然后用清水彻底冲洗干净。
其次，爽肤水的使用也非常重要。
爽肤水可以帮助肌肤恢复酸碱平衡，收缩毛孔，补充肌肤所需的水分和养分。
使用爽肤水时，可以选择倒在化妆棉上轻轻擦拭全脸，也可以直接倒在手心轻拍全脸，确保肌肤充分吸收。
接着是精华素的使用。
精华素是护肤品中的高浓缩产品，可以深层滋养肌肤，改善肌肤问题。
使用精华素时，只需取适量在手心，然后均匀涂抹在脸上，轻轻按摩至吸收即可。
然后是面霜的使用。
面霜可以帮助肌肤锁住水分，形成保护膜，防止水分流失。
使用面霜时，取适量在手心搓热后再均匀涂抹在脸上，然后用指腹轻轻按摩至吸收。
最后是防晒霜的使用。
防晒霜可以帮助肌肤抵御紫外线的伤害，防止肌肤晒黑、晒伤。
在白天出门前，可以在使用面霜后再涂抹适量的防晒霜，均匀涂抹全脸，也可以涂抹在颈部和手部等容易被阳光照射到的部位。
在使用护肤品时，需要注意以下几点，首先，选择适合自己肤质的护肤品非常重要，不同肤质需要的护肤品成分也不同；其次，使用护肤品时要按照产品说明书上的方法和用量使用，不要过量使用；最后，护肤品也有使用顺序，一般是从质地最轻薄的产品开始使用，逐渐往厚重的产品过渡。
总之，护肤品的正确使用方法可以帮助肌肤保持健康状态，延缓肌肤老化。
正确的护肤步骤和使用顺序也是非常重要的，希望大家在护肤时能够按照正确的方法使用护肤品，让肌肤保持年轻和健康。
passage11 A Volcano Eruption
erupt vi. 爆发；突然发生
11. A Volcano Eruption As the best candidate, I was appointed to collect and evaluate information for a database about diverse natural disasters, such as hurricanes, typhoons or thunderstorms. Sometimes I did this by giving out questionnaires to those who went through them. But sometimes I had to go through actual disasters myself. The Musaki Volcano was one of them.
But, glancing through our surroundings, I foresaw the potential danger and found no guarantee of our safety. The uncomfortable gas almost made us unconscious. Sweats of anxiety began to drop. Managing to stop panicking and trembling, we quickly put on our protective suits, helmets and boots and eventually made our way to a safe place. How lucky we were even though my precious equipment and documents were all burnt to the ground!
雅思阅读词汇 火山爆发 The Eruption of Volcano
火山爆发 The Eruption of Volcanoabundant adj. 丰富的，富余的accretion n. 增长accumulation n. 积聚，堆积物active volcano 活火山Alaska Volcano Observatory 阿拉斯加州火山观察站aleutian islands 阿留申群岛（环布于阿拉斯加半岛尖端的孤形岛屿）alternating layers of lava flows 熔岩流的交互叠层aluminum n. [化]铝Archean adj. [地质]太古代的Archeology n. 考古学ascending adj. 上升的，向上的ash particle 灰烬微粒avalanche n.&v. 雪崩awesome adj. 引起敬畏的，可怕的basaltic lava 玄武岩火山石basin-shaped adj. 盆状的beat out 敲平belated adj. 误期的，迟来的blacksmith n. 铁匠blanket n. 毯子，覆盖blast n. 一股（气流），爆炸，冲击波blob n. 一滴，水滴blocky adj. 短而结实的，斑驳的bombs n. 火山口喷出的大堆球状熔岩bowl-shaped crater 碗型的火山口bubble n. 泡沫bulbous adj. 球根的buoyancy n. 浮性，浮力calcium n. [化]钙（元素符号ca）caldera n. [地质]喷火山口，凹陷处carbon dioxide [化] 二氧化碳carbonated soft drink 碳酸饮料Caribbean n. 加勒比海catastrophic adj. 悲惨的，灾难的chimney n. 烟囱，灯罩cinder cone 火山渣形成的圆锥体circular depression 圆形的凹陷circular adj. 圆形的，循环的composite volcano 复式火山conduit n. 导管，沟渠conduit system 沟渠系统cone n. 锥形物，圆锥体congeal v. （使）冻结，（使）凝结conical hill 圆锥型的小山Cotopaxi n. 科多帕希火山（在厄瓜多尔北部）coulee n. 深谷，[地质]熔岩流craggy adj. 陡峭的crater n. 坑crumple v. 弄皱，压皱crystal adj. 结晶状的；n.晶体crystalline adj. 水晶的crystallization n. 结晶化cubic kilometer 立方公里debris n. 碎片，残骸demolish vt. 毁坏，破坏dense clouds of lava fragments 浓密的火山岩碎片descend on 袭击destructive power 破坏力devastate vt. 毁坏diameter n. 直径dike n. 堤防dissolved gases 稀释的气体dome n. 圆屋顶domical shape 圆顶型dormancy n. 睡眠，冬眠dormant adj. 睡眠状态的，静止的downslope adj. 下坡的； adv.向着坡下Earth's crust 地壳ejected material 喷射出来的物质elongate v. 拉长，（使）伸长embedded adj. 植入的，内含的emission n. （光、热等的）散发，发射，喷射Enceladus n. 土卫[希神]恩克拉多斯（反叛众神的巨人）eon n. 永世，无数的年代erosion n. 腐蚀，侵蚀formation of cone 火山口的形成lava flow 熔岩流eruption n. 爆发，火山灰evacuate v. 撤退evolve v.（使）发展，（使）进展exhume vt. 掘出，发射fannning n. 铺开，展开fertile adj. 肥沃的，富饶的fissure n. 裂缝，裂沟flank n. 侧面flooding n. 泛滥，水灾fluid lava flow 流动的熔岩流floding adj. 可折叠的force of gravity 重力，地心引力forge v. 铸造fracture n. 破裂fragment n. 碎片，断片froth n. 泡沫，废物Fuji n. 富士山（在日本本州岛上的死火山）funnel-shaped crater 漏斗型的火山口gas pressure 气压gaseous adj.气体的，气态的geologic adj. 地质（学）的，地质（学）上的geologist n. 地质学者geophysicist n. 地球物理学者glassy adj. 像玻璃的granitic adj. 花岗石的，由花岗岩形成的hemisphere n. 半球high-velocity adj. 高速的igneous adj. 火的，似火的 [地]火成的imaging n.[计]成像imperceptible adj. 觉察不到的，感觉不到的，极细微的incandescent adj.遇热发光的，白炽的inferno n. 阴间，地狱ingredient n. 成分，因素interfere with 妨碍intermittently adv. 间歇地island chain 列岛Jupiter n. 木星Kamchatka n. 勘察加半岛（苏联东北部）landscape n. 风景，地形landslide n.[山崩]，崩塌的泥石lava dome 圆顶火山lava plateau 火山岩高地lava n. 熔岩，火山岩linear chain 线形链live in harmony with 与......和睦相处magma n. 岩浆magnesium n.[化]镁magnitude n. 量级majestic adj. 宏伟的，庄严的manganese n. 锰（元素符号为Mn）mantle composition 覆盖物的成分Mercury n. 水星molten v. 溶化；adj. 熔铸的monitor n. 监视器，监控mudflow n.[地] 泥流Neptune n. [天]海王星non-explosive lava flows 非爆炸性的火山岩流oval adj. 卵形的，椭圆的oxygen n.[化]氧particle n. 粒子，微粒pasty adj.浆状的Pele, Goddess of Volcanoes 火山女神pent adj.被关闭的，郁积的periodic violent unleashing 周期性的猛烈释放plain n. 平原，草原planetary probe 行星探测器planetary scientist 行星科学家Pompeii n. 庞培（意大利古都，公元79年火山爆发，全城淹没）population density 人口密度potassium n. [化]钾precipitate n. 沉淀物；v. 使沉淀precursory adj. 预示的，先驱的probe n. 探测器profile n. 剖面，侧面，外形project v. 凸出prominent adj. 显著的，突出的property damage 财务损坏pumice n. 轻石，浮石pyroclastic flow [地质]火成碎屑流，火山灰流quench v. 熄灭，平息reawaken v. 再度觉醒reemergence n. 再度出现reminder n. 提醒的人，暗示reservoir n. 水库，蓄水池resurgent adj. 复活的rift zone 断裂区Saturn n. [天]土星sculpt v. 雕刻，造型seismograph n. 地震仪，测震仪shatter n. 粉碎，碎片；vt. 粉碎，破坏shield volcano 盾状火山Sierra Nevada 内华达山脉silicate n.[化] 硅酸盐silicon n. [化] 硅sloping cone 有坡度的圆锥体sodium n.[化]钠solar system [天]太阳系solidification n. 凝固solidify v.(使)凝固，巩固spine n. 脊骨，地面隆起地带spiteful adj. 怀恨的，恶意的steep-sided, symmetrical cone 陡峭和对称的圆锥体steep-walled adj. 峭壁的stratospheric winds 同温层风stratovolcanoes n. 层云火山succession n. 连续，连续性sulfur dioxide n. [化]二氧化碳summit n. 顶点supernatural adj. 超自然的，神奇的sustain vt.支撑，撑住，维持swarm n. 一大群swelling n. 河水猛涨，涨水telltale remnant 证据性的残余物terrane n. 岩石Titan n.[希腊]提坦，太阳神titanium n.[化]钛trace n. 微量Triton n. 海卫，[希神]人身鱼尾的海神tsunami n. 海啸uplift v.&n.升起vegetation n. [植]植被，（总称）植物ventilated adj. 通风的vent n. 通风孔，出烟孔，出口Venus n. [罗神]维纳斯，[天]金星Vesuvius n. 维苏威火山（位于意大利西南部，欧洲大陆惟一的活火山）viscous adj.粘性的，粘滞的volcanic activity 火山活动volcanic ash and dust 火山灰尘volcanic ash 火山灰volcanic cinders 火山灰volcanic dust 火山尘土volcanic eruption 火山爆发volcanic feature 火山特征volcanic landform 火山地形volcanic lava dome 火山岩圆顶volcanic terrain 火山地形volcanic vent 火山口volcanism n. 火山作用volcano n. 火山volcanologist n. 火山学家weathering n. 侵蚀，风化whopping adj. 巨大的，庞大的wrathful adj. 愤怒的，激怒的Yosemite National Park （美国加利福尼亚州中部）约塞米蒂国家公园zircon n. 锆石。
30.A Volcano Eruption火山爆发(词汇注释)
25. unexpectedly [['ʌnik'spektidli]] adv. 出乎意料地，意外地 26. ash [[æ ʃ]] n. 灰；灰烬 27. lava [['lɑːvə]] n. 火山岩浆；火山所喷出的熔岩 lava fountain 【火山学】熔岩喷涌 28. fountain [['faʊntɪn]] n. 喷泉，泉水；源泉 29. shoot [[ʃuːt]] n. 射击；摄影；狩猎；急流; vt. 射击，射中；拍摄；发 芽；使爆炸；给注射; vi. 射击；发芽；拍电影 30. vary [['veərɪ]] vt. 改变；使多样化；变奏; vi. 变化；变异；违反
55. even though 虽然，即使 56. precious [['preʃəs]] adj. 宝贵的；珍贵的；矫揉造作的 56. equipment [[ɪ'kwɪpm(ə)nt]] n. 设备，装备；器材 57. document [['dɒkjʊm(ə)nt]] n. 文件，公文；[计] 文档；证件； vt. 用文件证明 58. were all burnt to the ground! 都烧得精光
19. alongside [[əlɒŋ'saɪd]] prep. 在旁边; adv. 在旁边 20. novelist [['nɒv(ə)lɪst]] n. 小说家 21. appreciation [[əpriːʃɪ'eɪʃ(ə)n; -sɪ-]] n. 欣赏，鉴别；增值；感谢 22. diagram [['daɪəgræ m]] n. 图表；图解; vt. 用图解法表示 23. balcony [['bæ lkənɪ]] n. 阳台；包厢；戏院楼厅 24. bathe [[beɪð]] vt. 沐浴；用水洗;vi. 洗澡；沐浴; n. 洗澡；游泳
火山英文单词
火山英文单词全文共四篇示例，供读者参考第一篇示例：火山是地球上特殊地理现象之一，它在地质变迁的过程中扮演着重要的角色。
火山不仅令人叹为观止，更是自然界中的奇妙之一。
下面我们将一起来探索关于火山的一些英文单词。
1. Volcano（火山）这是最基本的火山相关单词，指的是地球表面上的一个或一组喷发岩浆、火山灰、气体和岩石碎片的地质现象。
火山通常由一个或多个火山口组成，火山口是由地壳中的岩浆和气体喷发而成。
2. Lava（岩浆）岩浆是从地球内部喷发出来的高温熔融矿物质。
当地下的岩浆通过火山口喷发而出时，就会流动成为熔岩，这种熔岩经常会形成火山锥。
3. Magma（岩浆）和岩浆相似，但是岩浆是指在地下处于高温高压状态下的熔岩状物质。
岩浆是火山爆发的源头，当其冷却凝固后就形成了岩浆。
4. Ash（火山灰）火山爆发时释放的碎裂岩石和火山碎屑形成的细小颗粒物称为火山灰。
火山灰是火山爆发后的主要喷发物，它对农业、交通、生态环境等都有着影响。
5. Pyroclastic Flow（火山碎屑流）火山爆发时形成的高速岩石碎屑和火山气体流动体称为火山碎屑流。
这种火山碎屑流在喷发后迅速向下流动，携带着高温的火山碎石和其他岩石碎片。
6. Volcanic Crater（火山口）火山口是火山喷发释放岩浆和火山碎屑的通道，它通常位于火山锥顶部。
火山口的大小和形状取决于火山的类型和活动程度。
7. Caldera（火山口）当火山喷发造成火山口边缘坍塌时，就会形成一个巨大的火山口，这个大型火山口称为火山口。
火山口通常呈圆形或椭圆形，周围被陡峭的边缘环绕。
8. Volcanologist（火山学家）火山学家是研究火山活动和火山地质的科学家，他们通过观测和研究火山喷发、地震、气体排放等情况，来预测火山的活动和可能的危险。
9. Volcanic Eruption（火山喷发）火山喷发是火山活动中最具破坏性和危险性的现象之一，它会释放大量的岩浆、火山灰和火山气体，对周边地区造成严重影响。
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drops, crops, serious can cause species extinct.
❖ Destruction of the environment: volcanic eruptions pumped heavy amounts of ash and debris with formation can washed out roads, Bridges and flooded nearby villages and cities, makes millions homeless. Mud, rocks formed mud can like debris.
Mount Vesuvius, Italy
❖ This volcano buried about 3,360 Romans and the entire city of Pompeii under its ashes in 79 A.D. What makes Mount Vesuvius one of the most famous volcanoes of the world, is that the ash preserved the remains of entire city of Pompeii and its inhabitants as well as their pets as it is. History shows, Mount Vesuvius has erupted about 36 times. However this volcano is no more active now, it is an extinct volcano now, though it might become active anytime. When it was actually active, it never spewed any liquid lava, only ash and volcanic bombs that caused most of the destruction.
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1.Cause great bad impact on the global climate 2. Ash and rain mixed form mudslides（泥石流) 3. Ash can cause respiratory diseases（呼吸道疾病）
Some words about volcano: active volcano extinct volcano volcanic ash reawaken volcanologist rock-magma
crustal movement volcanic vent
活火山 死火山 火山灰 再度觉醒 火山学家 岩浆 地壳运动 火山口
❖ These are some of the world-famous volcanoes that have created havoc, when they were active. Most of these volcanoes lie dormant today. But, you never know, when they wake up from their never-ending slumber and release their lava of death and destruction. Till, then we can only hope they stay in their slumber peacefully.
A volcano is an opening, or rupture, in the surface or crust of the Earth or a planetary mass object, which allows hot lava, volcanic ash and gases to escape from the magma chamber below the surface.
Mount Fuji, Japan
❖ One of the most famous volcanoes of the world is Mount Fuji. It is buried Tokyo in ash when it last erupted in 1707. This mountain stands about 12,000 feet high and therefore covered with clouds most of the time. It has been made into a tourist spot and you can visit it only during July and August.
Llullaillaco, Argentina, Chile
❖ This is one of the world's highest active volcanoes and it is located in the Atacama Desert, which is one of the most driest place on earth. There is a lot of debris around the volcano and is covered with snow most of the time. There are avalanche deposits which are related to the southern flows of the Lava from the volcano. There are no activities, which can be observed now in this volcano. This volcano last erupted in 1877. The Llullaillaco is also famous for the 500-year-old mummies found on it in 1999. These mummies were preserved very well due to the cold, arid and hypoxic environment on the mountain.
1.fissure eruption (裂隙式喷发) 2.central eruption(中心式喷发) 3.penetrating eruption( 熔透式喷 发)
Part four : Distribution of volcanoes
1、The Pacific rim 环太平洋火山带 2、The ridge volcano 中洋脊火山 3、The rift valley volcanic belt 东非大裂谷火山带 4、The Mediterranean ─ Himalayan volcanic belt 地中海─喜马拉雅火山带
Mount Saint Helens Volcano,
Washington
❖ This volcano erupted in 1980 and wreaked havoc on the people, worst one in the history of United States. It erupted for the first time approximately 120 years back. The eruption on May 18, 1980 was as strong as the explosion of about 30,000 nuclear bombsThe eruption changed the landscape surrounding the mountain.
Volcanic Ash
❖ Volcanic ash is irritating, it will cause damage to the lungs.
Mudslide
❖ Volcanic eruption can trigger mudslides.
Part two: The formation of volcanic eruption
Part three : the types of Volcanoes
According to the volcanic activity:
1. active volcano 2. extinct volcano 3. dormant volcano
According to the condition of the eruption of the volcano eruption :
Kilauea Volcano, Hawaii
❖This is one of the most famous volcano in Hawaii. It lies in the southeast part of the Hawaii and major portion of the volcano remains under water. This volcano overlaps on the Mauna Loa shield of the volcano and is considered to be the most famous active volcano in the past. There are various legends that are associated with this volcano and its eruptions.
Volcanic Eruption
Structure
Volcano Eruption
definition