lava
简明释义
n. （火山）熔岩，岩浆；火山岩
n. （Lava）（西、意）拉瓦（人名）
复 数 l a v a s
英英释义
Lava is molten rock that erupts from a volcano during an eruption. | 熔岩是火山喷发时喷出的熔融岩石。 |
一旦冷却，熔岩会固化成火成岩。 | |
Lava can flow slowly or erupt explosively, depending on its viscosity. | 熔岩可以缓慢流动或剧烈喷发，这取决于其粘度。 |
单词用法
熔岩流；岩浆流 |
同义词
| 岩浆 | 熔岩沿着火山的侧面流动。 | ||
| 火山岩 | Magma is found beneath the Earth's surface, while lava is what we see on the surface during a volcanic eruption. | 岩浆位于地球表面以下，而熔岩是在火山喷发时我们在表面看到的。 |
反义词
| 冰 | 湖面结了厚厚的冰。 | ||
| 固体岩石 | 这座山是由固体岩石构成的，而不是熔岩。 |
例句
1.From the small number of impact craters that appear on Martian lava flows, one can estimate that the planet was volcanically active as recently as a half-billion years ago—and may be active today.
从火星熔岩流上出现的少量陨石坑中，我们可以估计，在5亿年前，这个星球上的火山还很活跃——也许现在依然活跃。
2.The city was entombed in volcanic lava.
那个城市被火山熔岩掩埋了。
3.One said there was no lava on the moon.
一个说法是月球上没有熔岩。
4.Molten lava erupted from the top of the volcano.
熔岩从火山顶喷了出来。
5.Meanwhile, people continue to live on top of the lava.
与此同时，人们还是继续在熔岩之上继续着自己的生活。
这就是火山熔岩吗？
7.One is the composition of the lava.
一是熔岩的构成。
8.Mexico's Mount Colima began spewing lava and ash last night.
墨西哥科利马山昨晚开始喷发熔岩和火山灰。
9.Around this time, the largest of these centers, Cuicuilco, was seriously affected by a volcanic eruption, with much of its agricultural land covered by lava.
大约在这个时候，这些中心中最大的Cuicuilco受到了火山喷发的严重影响，它的大部分农田被熔岩覆盖。
10.The volcano erupted, spewing molten rock and ash into the sky, while the flowing lava 熔岩 destroyed everything in its path.
火山爆发，喷出熔融的岩石和灰烬，而流动的lava 熔岩摧毁了它所经过的一切。
11.The lava 熔岩 cooled and solidified, creating stunning rock formations.
这lava 熔岩冷却并固化，形成了惊人的岩石结构。
12.During our hike, we encountered a river of lava 熔岩 that had flowed down the mountain.
在我们的远足中，我们遇到了一条流下山的lava 熔岩河。
13.Scientists study lava 熔岩 formations to understand the geological history of the area.
科学家研究lava 熔岩的形成，以了解该地区的地质历史。
14.The lava 熔岩 from the eruption created new land as it poured into the ocean.
喷发出的lava 熔岩在流入海洋时创造了新土地。
作文
When we think about the dynamic forces of nature, one of the most fascinating phenomena is volcanic activity. At the heart of this process lies the substance known as lava, which is molten rock expelled by a volcano during an eruption. The term lava originates from the Italian word for 'stream' or 'to flow', aptly describing its liquid state as it pours out from the earth's crust. Understanding lava is crucial not only for geologists but also for anyone interested in the natural world and its powerful processes.The journey of lava begins deep within the Earth, where intense heat and pressure cause rocks to melt. This molten rock, or magma, finds its way to the surface through cracks and fissures in the Earth's crust. When magma erupts from a volcano, it is referred to as lava. As it flows down the sides of the volcano, lava can take on various forms depending on its temperature, composition, and the speed at which it flows.There are two primary types of lava: pahoehoe and aa. Pahoehoe lava is smooth and ropy, resembling a flowing river, while aa lava is rough and jagged, characterized by its clumpy texture. Each type of lava presents unique hazards and landscapes. For instance, pahoehoe flows can create beautiful, undulating surfaces, while aa flows can be treacherous, making it difficult for both humans and animals to traverse the terrain.The cooling of lava leads to the formation of igneous rock, which contributes to the Earth's crust. Over time, layers of lava can build up around a volcano, creating a mountain that can reach impressive heights. The study of lava and its properties is essential for understanding volcanic eruptions and predicting their potential impacts on surrounding areas. Scientists monitor volcanic activity closely, using technology to detect changes in temperature and gas emissions that may indicate an impending eruption.Beyond its geological significance, lava also plays a role in shaping ecosystems. When lava cools and solidifies, it creates new landforms that can eventually support life. For example, after the eruption of Kilauea in Hawaii, the cooled lava formed new land that became home to various plant and animal species. This process of ecological succession demonstrates how lava can lead to the rejuvenation of ecosystems, despite its destructive nature during eruptions.In conclusion, lava is more than just a byproduct of volcanic eruptions; it is a vital component of Earth's geological processes and ecosystems. Whether it flows gently or erupts violently, lava serves as a reminder of the planet's dynamic nature. As we continue to study and understand this incredible phenomenon, we gain insight into the forces that shape our world and the delicate balance of life that exists within it. The next time you hear about a volcanic eruption, remember the significance of lava and its role in the ongoing story of our planet.
当我们想到自然界的动态力量时，火山活动是最迷人的现象之一。在这个过程中，核心物质就是被称为熔岩的物质，它是火山在喷发时排出的熔融岩石。熔岩一词源自意大利语，意为“溪流”或“流动”，恰如其分地描述了它从地壳中倾泻而出的液态状态。理解熔岩对于地质学家以及任何对自然世界及其强大过程感兴趣的人来说都是至关重要的。熔岩的旅程始于地球深处，在那里，强烈的热量和压力使岩石熔化。这种熔融的岩石，或称为岩浆，沿着地壳中的裂缝和缝隙找到表面。当岩浆从火山喷发出来时，就称为熔岩。当它沿着火山的侧面流动时，熔岩可以根据其温度、成分和流动速度呈现出不同的形态。熔岩主要有两种类型：平滑熔岩（pahoehoe）和粗糙熔岩（aa）。平滑熔岩是光滑而波状的，类似于流动的河流，而粗糙熔岩则是粗糙而不规则的，具有块状纹理。每种类型的熔岩都带来了独特的危险和景观。例如，平滑熔岩流可以形成美丽的起伏表面，而粗糙熔岩流可能是危险的，使人类和动物都难以穿越地形。熔岩的冷却导致火成岩的形成，这有助于地壳的构建。随着时间的推移，熔岩的层可以在火山周围堆积，形成高耸的山脉。对熔岩及其特性的研究对于理解火山喷发和预测其对周边地区的潜在影响至关重要。科学家密切监测火山活动，利用技术检测温度变化和气体排放，这些变化可能表明即将发生喷发。除了地质意义外，熔岩在塑造生态系统方面也发挥着作用。当熔岩冷却并固化时，它创造了新的地貌，这最终可以支持生命。例如，在夏威夷基拉韦厄火山喷发后，冷却的熔岩形成了新的土地，成为各种植物和动物物种的栖息地。这一生态演替的过程展示了熔岩如何导致生态系统的再生，尽管它在喷发期间具有破坏性。总之，熔岩不仅仅是火山喷发的副产品；它是地球地质过程和生态系统的重要组成部分。无论是温和流动还是剧烈喷发，熔岩都提醒我们地球的动态本质。当我们继续研究和理解这一令人难以置信的现象时，我们获得了对塑造我们世界的力量以及其中存在的生命的微妙平衡的洞察。下次你听到关于火山喷发的消息时，请记住熔岩的重要性及其在我们星球持续故事中的角色。
