magma

简明释义

英[ˈmæɡmə]美[ˈmæɡmə]

n. [地质]岩浆；糊剂

n. （Magma）人名；（英）马格马

复 数 m a g m a s 或 m a g m a t a

英英释义

单词用法

同义词

反义词

例句

1.As the magma smashes through layers of rock, it rips out debris, creating a mix of liquid and solid material.

当岩浆撞击岩层时，会出现岩屑，形成液态和固态物质的混合物。

2.He reasoned that iron took on more or less oxygen in response to conditions in the kimberlitic magma itself—mainly in response to heat and the available oxygen.

他推断，铁吸收或多或少的氧气是由于金伯利岩浆本身的条件——主要是由于热量和可用的氧气。

3.The origination of the magma is related with the dehydration of the subducting plate of the Paleozoic Tethys Sea.

岩浆的起源与古生代特提斯海俯冲板块的脱水有关。

4.Never mind that magma made from subducted seafloorshas a habit of welling up in volcanoes.

来自潜没海床的岩浆会从火山涌出，这也是一个不得不考虑的因素。

5.Remember, magma is hot molten rock that's underground, and it is called lava when it reaches the surface.

记住，岩浆是地下炽热的熔化了的岩石，当它到达地表时就被称为熔岩。

6.Magma appeared in abundance and in some locations formed vast molten oceans.

岩浆大量涌现，在一些地方形成了广阔的熔岩海洋。

7.The volcano erupted after years of pressure building up in the chamber filled with magma.

在充满岩浆的腔室中，经过多年的压力积累，火山爆发了。

8.Scientists study the composition of magma to understand the Earth's interior.

科学家研究岩浆的成分，以了解地球内部。

9.As the magma rises, it can create new landforms and islands.

当岩浆上升时，它可以形成新的地形和岛屿。

10.The cooling of magma beneath the surface leads to the formation of igneous rocks.

地下岩浆的冷却导致了火成岩的形成。

11.Geologists often use seismic data to locate pockets of magma beneath the Earth's crust.

地质学家常常使用地震数据来定位地壳下方的岩浆储层。

作文

In the heart of our planet lies a molten rock known as magma">magma. This substance is not just a simple mixture of minerals; it is a complex and dynamic component of Earth's geology. The study of magma">magma is crucial for understanding volcanic activity, the formation of igneous rocks, and the processes that shape our planet. When we think of magma">magma, we often envision fiery eruptions and flowing lava, but its role in the Earth’s crust is far more intricate. magma">Magma forms beneath the Earth's surface when rocks melt due to high temperatures and pressures. This process can occur in various geological settings, such as at subduction zones, where one tectonic plate is forced under another, or at hotspots, where plumes of hot material rise from deep within the mantle. The composition of magma">magma can vary significantly depending on the source material and the conditions under which it forms. For instance, some magma">magma is rich in silica, leading to a more viscous and explosive eruption, while others are low in silica, resulting in a fluid, gentle flow. As magma">magma rises towards the surface, it can accumulate in magma chambers, where it may cool and crystallize into solid rock. This process is essential for forming many of the igneous rocks we see today, such as granite and basalt. The cooling rate of magma">magma greatly influences the texture of the resulting rock: slow cooling allows larger crystals to form, while rapid cooling leads to smaller crystals or even glassy textures. Volcanic eruptions occur when pressure builds up in these magma chambers, forcing the magma">magma to break through the Earth's crust. This can result in spectacular displays of nature, but it can also have devastating consequences for nearby communities. Understanding the behavior of magma">magma is vital for predicting volcanic eruptions and mitigating their impact on human life and infrastructure. Moreover, magma">magma plays a significant role in the rock cycle. As it erupts and flows, it cools and solidifies, contributing to the formation of new rocks. Over time, these rocks can be eroded and transformed into sediment, which may eventually become part of new magma">magma through the process of subduction and melting. This cyclical nature highlights the interconnectedness of geological processes and the importance of magma">magma in the ongoing evolution of our planet. In conclusion, magma">magma is a fundamental element of Earth's geology that influences volcanic activity, rock formation, and the rock cycle. Its study not only enhances our understanding of geological processes but also helps us prepare for and respond to the natural hazards associated with volcanic eruptions. As we continue to explore the mysteries of our planet, the significance of magma">magma will undoubtedly remain a focal point of geological research and education.

在我们星球的核心，存在着一种熔融岩石，称为magma">岩浆。这种物质不仅仅是一种简单的矿物混合物；它是地球地质学中复杂而动态的组成部分。研究magma">岩浆对于理解火山活动、火成岩的形成以及塑造我们星球的过程至关重要。当我们想到magma">岩浆时，我们常常想象火焰喷发和流动的熔岩，但它在地壳中的作用远比这复杂。 magma">岩浆在地球表面下形成，当岩石由于高温和压力而熔化时。这一过程可以在多种地质环境中发生，例如在俯冲带，那里一个构造板块被迫位于另一个下面，或在热点，热物质从地幔深处上升。magma">岩浆的成分可以因源材料和形成条件的不同而显著变化。例如，一些magma">岩浆富含二氧化硅，这导致其粘度更高并且爆炸性喷发，而其他则低于二氧化硅，导致流动平缓、温和的喷发。 当magma">岩浆向表面上升时，它可以在岩浆房中积聚，在那里它可能冷却并结晶成固体岩石。这个过程对形成我们今天看到的许多火成岩，如花岗岩和玄武岩至关重要。magma">岩浆的冷却速度极大地影响了所形成岩石的纹理：缓慢冷却允许形成较大的晶体，而快速冷却则导致较小的晶体或甚至玻璃状的纹理。 火山喷发发生在这些岩浆房中的压力增加，迫使magma">岩浆突破地壳。这可能导致自然界的壮观景象，但也可能对附近的社区产生毁灭性的后果。理解magma">岩浆的行为对于预测火山喷发和减轻其对人类生活和基础设施影响至关重要。 此外，magma">岩浆在岩石循环中扮演着重要角色。当它喷发并流动时，它冷却并固化，有助于新岩石的形成。随着时间的推移，这些岩石可能会被侵蚀并转变为沉积物，最终可能通过俯冲和熔化的过程成为新的magma">岩浆的一部分。这种循环性质突显了地质过程之间的相互联系，以及magma">岩浆在我们星球不断演变中的重要性。 总之，magma">岩浆是地球地质学的基本元素，影响火山活动、岩石形成和岩石循环。它的研究不仅增强了我们对地质过程的理解，还帮助我们为火山喷发相关的自然灾害做好准备和应对。随着我们继续探索我们星球的奥秘，magma">岩浆的重要性无疑将继续成为地质研究和教育的焦点。