subduction

简明释义

英[səbˈdʌkʃən]美[səbˈdʌkʃən]

n. 俯冲；除去；减法

英英释义

单词用法

同义词

反义词

例句

1.This is called a subduction zone.

这被称为俯冲带(subduction zone)。

2.That's why they [are] kind of parallel to coast lines in the Pacific, in the so-called Ring of Fire, where the subduction zones are.

因此，这些传感器都被平行放置在太平洋沿岸即所谓的环太平洋地震带上。

3.Slab pull happens at the subduction zone.

板块拉伸发生在俯冲带。

4.But geophysicists had thought that great subduction-zone earthquakes happened only where younger oceanic crust scrapes its way into the mantle.

但是在此之前，地球物理学者们认为，这种俯冲带大地震仅仅在年轻的海洋地壳挤入地幔处才可能发生。

5.Island arcs form along an active boundary between two tectonic plates, with one being driven beneath the other (subduction).

岛弧形成于两个板块之间的活跃边界上，其中一块会被推挤到另一块的下方(称之为“消亡”)。

6.Paul, can you remind us what a subduction zone is?

保罗，你能提醒我们什么是俯冲带吗？

7.This is called a subduction zone when one plate subducts beneath another.

当一个板块向另一个板块下俯冲时，那里就被称为俯冲带。

8.In areas where subduction occurs, volcanic activity is often heightened.

在发生俯冲的地区，火山活动通常会增强。

9.The process of subduction is responsible for the formation of deep ocean trenches.

俯冲的过程导致了深海沟的形成。

10.Many mountain ranges are formed as a result of subduction processes.

许多山脉是由于俯冲过程形成的。

11.The Pacific Plate is currently undergoing subduction beneath the North American Plate.

太平洋板块目前正在俯冲到北美板块之下。

12.Scientists study subduction zones to understand earthquake patterns.

科学家研究俯冲带以理解地震模式。

作文

The phenomenon of tectonic plate movement is a fundamental aspect of our planet's geology. One of the most significant processes involved in this movement is known as subduction. This term refers to the process by which one tectonic plate moves under another and sinks into the mantle, the layer of the Earth beneath the crust. Understanding subduction is crucial for comprehending the formation of various geological features, including mountains, ocean trenches, and volcanic activity.When two tectonic plates converge, their interaction can lead to several outcomes depending on their composition and density. In many cases, an oceanic plate, which is denser, will slide beneath a lighter continental plate. This process of subduction creates deep oceanic trenches and contributes to the recycling of the Earth's crust. As the oceanic plate descends into the mantle, it encounters increasing temperatures and pressures, leading to the melting of rocks and the release of magma. This magma can then rise to the surface, resulting in volcanic eruptions.Regions where subduction occurs are often characterized by intense seismic activity. The friction between the descending plate and the overriding plate can cause stress to build up over time. When this stress is released, it results in earthquakes. For example, the Pacific Ring of Fire is an area that is well-known for its high levels of seismic activity, largely due to the numerous subduction zones surrounding the Pacific Ocean.Moreover, subduction plays a vital role in the rock cycle. It facilitates the recycling of materials from the surface back into the mantle, contributing to the dynamic nature of our planet. As the oceanic plate is drawn down, it carries with it sediments and water, which can lead to the formation of new minerals and the alteration of existing ones. This process not only shapes the Earth's crust but also influences the chemistry of the mantle and the overall geological processes occurring within the Earth.The study of subduction zones has practical implications as well. Understanding where these zones are located helps scientists assess potential risks associated with earthquakes and volcanic eruptions. For instance, cities situated near subduction zones must have robust emergency preparedness plans in place to mitigate the impact of natural disasters. Additionally, the knowledge gained from studying subduction can inform construction practices, ensuring that buildings and infrastructure are designed to withstand seismic activity.In conclusion, subduction is a critical geological process that significantly impacts the Earth's landscape and the occurrence of natural disasters. By studying subduction zones, we gain valuable insights into the workings of our planet, helping us to better prepare for and respond to the challenges posed by tectonic activity. As our understanding of subduction continues to evolve, so too does our ability to protect lives and property in areas vulnerable to the forces of nature.

构造板块运动现象是我们星球地质学的基本方面之一。这个运动中一个重要的过程被称为俯冲。这个术语指的是一个构造板块在另一个板块下移动并沉入地幔的过程，地幔是地壳下方的地球层。理解俯冲对于理解各种地质特征的形成至关重要，包括山脉、海洋沟和火山活动。当两个构造板块相遇时，它们的相互作用可以导致多种结果，具体取决于它们的组成和密度。在许多情况下，较密集的海洋板块将滑入较轻的大陆板块之下。这个俯冲过程会造成深海沟的形成，并促进地壳的回收。当海洋板块沉入地幔时，它会遭遇越来越高的温度和压力，导致岩石熔化和岩浆释放。这些岩浆随后可以上升到地表，导致火山喷发。发生俯冲的地区通常以强烈的地震活动为特征。下降板块与覆盖板块之间的摩擦可能导致压力随着时间的推移而积累。当这种压力释放时，就会导致地震。例如，太平洋火环是一个因周围众多俯冲带而闻名的高地震活动区域。此外，俯冲在岩石循环中也扮演着重要角色。它促进了从地表到地幔的物质回收，有助于我们星球的动态性质。随着海洋板块的下沉，它携带着沉积物和水，这可能导致新矿物的形成和现有矿物的变化。这个过程不仅塑造了地壳，还影响了地幔的化学成分和地球内部发生的整体地质过程。对俯冲带的研究也具有实际意义。了解这些带的位置有助于科学家评估与地震和火山喷发相关的潜在风险。例如，位于俯冲带附近的城市必须制定强有力的应急准备计划，以减轻自然灾害的影响。此外，从研究俯冲中获得的知识可以为建筑实践提供信息，确保建筑物和基础设施设计能够承受地震活动。总之，俯冲是一个关键的地质过程，对地球的景观和自然灾害的发生有重大影响。通过研究俯冲带，我们获得了对我们星球运作方式的宝贵见解，帮助我们更好地为构造活动带来的挑战做好准备并应对。随着我们对俯冲的理解不断发展，我们保护生命和财产的能力也在不断增强，尤其是在自然力量易发的地区。