vulcanism

简明释义

英[ˈvʌlkənɪzəm]美[ˈvʌlkəˌnɪzəm]

n. 火山活动，火山现象；火山作用

英英释义

单词用法

同义词

反义词

例句

1.According to paleobiologist Jessica Whiteside of Brown University, a leading researcher on end-Triassic vulcanism, more evidence is needed before Ruhl’s interpretations are conclusively supported.

美国布朗大学古生态学家杰茜卡-怀特塞德曾经主持了一项关于晚三叠纪时期火山活动的研究。 怀特塞德认为，鲁尔的研究成果要想得到广泛的支持，必须要寻找更多的证据来提供更为合理的解释。

2.According to paleobiologist Jessica Whiteside of Brown University, a leading researcher on end-Triassic vulcanism, more evidence is needed before Ruhl’s interpretations are conclusively supported.

美国布朗大学古生态学家杰茜卡-怀特塞德曾经主持了一项关于晚三叠纪时期火山活动的研究。 怀特塞德认为，鲁尔的研究成果要想得到广泛的支持，必须要寻找更多的证据来提供更为合理的解释。

3.What the Vulcanism of the Cascade Mountains tells you is that this range not only has active subduction beneath it, but that the rock layer riding on top is thin.

一连串的火山山脉告诉你的是，这个山脉不仅底下有活跃的俯冲活动，而且上面的岩石层也很薄。

4.Suggested causes of ice age periods include the positions of the continents, variations in the Earth's orbit, changes in the solar output, and Vulcanism.

导致冰河期形成的可能原因包括：大陆的位置，地球轨迹的变化，太阳辐射的输出，以及火山的作用。

5.The study of vulcanism is crucial for understanding how volcanoes affect the environment.

研究火山活动对于理解火山如何影响环境至关重要。

6.Many islands in the Pacific are a result of ancient vulcanism.

太平洋中的许多岛屿是古代火山活动的结果。

7.Geologists often examine rocks formed by vulcanism to learn about Earth's history.

地质学家常常检查由火山活动形成的岩石，以了解地球的历史。

8.The vulcanism in this region has created unique geological formations.

该地区的火山活动创造了独特的地质结构。

9.Scientists are researching the effects of vulcanism on climate change.

科学家正在研究火山活动对气候变化的影响。

作文

Volcanism, or 火山活动, is a geological phenomenon that encompasses the processes and activities related to the movement of molten rock from beneath the Earth's crust to its surface. This movement can result in volcanic eruptions, the formation of new landforms, and the release of gases and ash into the atmosphere. Understanding 火山活动 is crucial not only for geologists but also for communities living near volcanoes, as it can have significant implications for safety, agriculture, and climate. The study of 火山活动 dates back centuries, with early civilizations often attributing volcanic eruptions to the wrath of gods. However, modern science has provided us with a more comprehensive understanding of the mechanisms behind these powerful natural events. Volcanism occurs due to the buildup of pressure from magma, which is molten rock located beneath the Earth's surface. When this pressure becomes too great, it forces the magma to escape, leading to an eruption. There are several types of volcanic eruptions, ranging from gentle lava flows to explosive eruptions that can launch ash and debris high into the atmosphere. The type of eruption is influenced by the composition of the magma, the amount of dissolved gases it contains, and the structure of the volcano itself. For instance, shield volcanoes, characterized by their broad, gently sloping sides, typically produce non-explosive eruptions. In contrast, stratovolcanoes, which have steeper profiles, are known for their explosive activity. The effects of 火山活动 can be both destructive and beneficial. On one hand, volcanic eruptions can devastate landscapes, obliterate towns, and pose serious risks to human life. The eruption of Mount Vesuvius in AD 79, which buried the Roman cities of Pompeii and Herculaneum, is a stark reminder of the potential dangers of living near active volcanoes. On the other hand, volcanic activity can also create new landforms, enrich soil fertility, and contribute to the formation of mineral deposits. For example, the Hawaiian Islands were formed through the continuous eruptions of underwater volcanoes over millions of years. In recent years, scientists have made significant advancements in monitoring 火山活动 to predict eruptions and mitigate their impacts. Techniques such as seismology, gas emissions analysis, and satellite imagery allow researchers to track changes in volcanic behavior. These tools have proven invaluable in providing early warnings to communities at risk, enabling them to evacuate and prepare for potential disasters. Climate change is another factor that can influence 火山活动. Some studies suggest that large-scale eruptions can lead to short-term cooling of the Earth's atmosphere due to the ash and sulfur dioxide released during eruptions. This can impact global weather patterns and agricultural productivity. Understanding the interplay between volcanism and climate is an ongoing area of research that highlights the interconnectedness of Earth's systems. In conclusion, 火山活动 is a complex and multifaceted phenomenon that plays a vital role in shaping our planet. While it poses risks to human life and infrastructure, it also contributes to the dynamic nature of Earth’s geology. As we continue to study and monitor volcanic activity, we gain valuable insights that can help us better understand our planet and prepare for the challenges posed by these powerful natural forces.

火山活动是一个地质现象，涵盖了与熔融岩石从地壳下方移动到地表相关的过程和活动。这种运动可能导致火山喷发、新地貌的形成，以及气体和灰烬释放到大气中。理解火山活动不仅对地质学家至关重要，而且对生活在火山附近的社区也有重大影响，因为这可能对安全、农业和气候产生重要影响。 火山活动的研究可以追溯到几个世纪以前，早期文明常常将火山喷发归因于神灵的愤怒。然而，现代科学为我们提供了更全面的了解这些强大自然事件背后的机制。火山活动发生是由于来自岩浆的压力积聚，岩浆是位于地球表面下方的熔融岩石。当这种压力变得过大时，它迫使岩浆逃逸，导致喷发。 火山喷发有几种类型，从温和的熔岩流到爆炸性的喷发，这些喷发可以将灰烬和碎片高高抛入大气中。喷发的类型受岩浆成分、所含溶解气体的数量以及火山本身的结构影响。例如，盾状火山以其宽广、缓坡的侧面为特征，通常产生非爆炸性喷发。相比之下，层状火山则以其陡峭的轮廓而闻名，通常具有爆炸性活动。 火山活动的影响既可以是破坏性的，也可以是有益的。一方面，火山喷发可以摧毁地形、夷平城镇，并对人类生命构成严重威胁。公元79年维苏威火山的喷发，埋葬了罗马城市庞贝和赫库兰尼姆，是生活在活火山附近的潜在危险的严酷提醒。另一方面，火山活动也可以创造新的地貌、丰富土壤肥力，并促进矿产沉积的形成。例如，夏威夷群岛就是通过数百万年来水下火山的持续喷发形成的。 近年来，科学家在监测火山活动以预测喷发和减轻其影响方面取得了显著进展。地震学、气体排放分析和卫星影像等技术使研究人员能够跟踪火山行为的变化。这些工具在为处于风险中的社区提供早期警报方面被证明是无价的，使他们能够撤离并为潜在灾难做好准备。 气候变化是另一个可能影响火山活动的因素。一些研究表明，大规模喷发可能导致由于喷发期间释放的灰烬和二氧化硫而短期冷却地球的大气。这可能影响全球天气模式和农业生产力。理解火山活动与气候之间的相互作用是一个持续的研究领域，突显了地球系统之间的相互联系。 总之，火山活动是一个复杂而多面的现象，在塑造我们星球方面发挥着至关重要的作用。尽管它对人类生命和基础设施构成风险，但它也为地球的动态特性做出了贡献。随着我们继续研究和监测火山活动，我们获得了宝贵的见解，这些见解可以帮助我们更好地理解我们的星球并为这些强大自然力量带来的挑战做好准备。