pyroclastics

简明释义

英[ˌpaɪrəʊˈklæstɪks]美[ˌpaɪroʊˈklæstɪks]

n. 火成碎屑沉积（pyroclastic 的复数）

英英释义

单词用法

同义词

反义词

例句

1.The volcano erupted, spewing large amounts of pyroclastics (火山碎屑) into the atmosphere.

火山爆发，向大气中喷出了大量的火山碎屑。

2.Scientists study pyroclastics (火山碎屑) to understand the eruption history of a volcano.

科学家研究火山碎屑以了解火山的喷发历史。

3.During the hike, we encountered layers of pyroclastics (火山碎屑) that indicated past volcanic activity.

在徒步旅行中，我们遇到了表明过去火山活动的火山碎屑层。

4.The formation of pyroclastics (火山碎屑) can tell geologists about the intensity of a volcanic eruption.

地质学家可以通过火山碎屑的形成来判断火山喷发的强度。

5.After the eruption, the landscape was covered in thick deposits of pyroclastics (火山碎屑).

喷发后，景观被厚厚的火山碎屑沉积物覆盖。

作文

The study of volcanoes and their eruptions is a fascinating field that reveals much about the Earth's geological processes. One of the most interesting aspects of volcanic activity is the production of materials known as pyroclastics, which are fragments of volcanic rock and ash ejected during an explosive eruption. Understanding pyroclastics is crucial for both scientists and those living in volcanic regions, as these materials can have significant impacts on the environment and human safety. When a volcano erupts, it can release a variety of substances into the atmosphere, including gases, lava, and pyroclastics. The latter can range in size from tiny ash particles to large boulders, depending on the intensity of the eruption. These fragments can be extremely hazardous, as they can travel at high speeds and cover vast areas, leading to destruction of property and loss of life. For instance, during the eruption of Mount St. Helens in 1980, pyroclastics were responsible for significant devastation, demonstrating the power and danger of volcanic eruptions. In addition to their immediate dangers, pyroclastics also play a vital role in shaping the landscape over time. When these materials settle, they can create new landforms, such as volcanic domes and tuff rings. Over centuries, layers of pyroclastics can build up, forming sedimentary deposits that provide valuable information about past volcanic activity. Geologists study these layers to understand the history of eruptions and to predict future volcanic behavior. Moreover, pyroclastics can also affect the climate. Large eruptions can inject substantial amounts of ash and sulfur dioxide into the stratosphere, leading to temporary cooling of the Earth's surface. This phenomenon was observed after the eruption of Mount Pinatubo in 1991, which resulted in a global temperature drop. Such climatic changes can have far-reaching effects on agriculture, ecosystems, and weather patterns. For communities living near active volcanoes, awareness of pyroclastics is essential for disaster preparedness. Education programs often focus on the risks associated with volcanic eruptions, including the dangers posed by pyroclastics. By understanding how these materials behave during an eruption, residents can better prepare for evacuation and other safety measures. In conclusion, pyroclastics are a critical component of volcanic eruptions that can have immediate and long-term effects on both the environment and human society. Through ongoing research and education, we can better understand these powerful natural phenomena and mitigate their impacts. As scientists continue to study pyroclastics, we gain deeper insights into the dynamic processes that shape our planet, ultimately enhancing our ability to live safely in the shadow of volcanoes.

火山及其喷发的研究是一个迷人的领域，它揭示了地球地质过程的许多方面。火山活动中最有趣的方面之一是产生被称为火山碎屑的物质，这些物质是在爆炸性喷发过程中喷出的火山岩和灰烬碎片。理解火山碎屑对科学家和生活在火山区域的人们至关重要，因为这些材料可能对环境和人类安全产生重大影响。 当火山喷发时，它可以将各种物质释放到大气中，包括气体、熔岩和火山碎屑。后者的大小可以从微小的灰尘颗粒到大型岩石，具体取决于喷发的强度。这些碎片可能极其危险，因为它们可以以高速传播并覆盖广泛的区域，导致财产损失和生命丧失。例如，在1980年圣海伦斯山喷发期间，火山碎屑造成了重大破坏，展示了火山喷发的力量和危险。 除了直接的危险外，火山碎屑在塑造地貌方面也起着重要作用。当这些材料沉降时，它们可以形成新的地形，例如火山圆顶和凝灰岩环。几个世纪以来，火山碎屑的层可以积累，形成沉积物，这些沉积物提供了关于过去火山活动的宝贵信息。地质学家研究这些层，以了解喷发的历史并预测未来的火山行为。 此外，火山碎屑还可能影响气候。大型喷发可以将大量的灰烬和二氧化硫注入平流层，导致地球表面的暂时降温。这种现象在1991年皮纳图博火山喷发后得到了观察，导致全球气温下降。这种气候变化可能对农业、生态系统和天气模式产生深远的影响。 对于生活在活火山附近的社区来说，意识到火山碎屑的存在对于灾难准备至关重要。教育项目通常集中在与火山喷发相关的风险上，包括火山碎屑所带来的危险。通过了解这些材料在喷发期间的行为，居民可以更好地为撤离和其他安全措施做好准备。 总之，火山碎屑是火山喷发的重要组成部分，对环境和人类社会都可能产生直接和长期的影响。通过持续的研究和教育，我们可以更好地理解这些强大的自然现象，并减轻它们的影响。随着科学家继续研究火山碎屑，我们对塑造我们星球的动态过程有了更深入的认识，从而最终增强了我们在火山阴影下安全生活的能力。