eruptive phase

简明释义

1. 喷发相; 2. 喷出期;

英英释义

例句

1.Scientists monitor the eruptive phase of the volcano closely to predict future activity.

科学家密切监测火山的喷发阶段以预测未来的活动。

2.During the eruptive phase, ash clouds can disrupt air travel for hundreds of miles.

在喷发阶段，灰烬云可能会扰乱数百英里的航空旅行。

3.The eruptive phase can last for several weeks, causing significant changes in the landscape.

该喷发阶段可能持续数周，对地貌造成重大变化。

4.During the volcano's eruptive phase, tourists were advised to stay away from the area.

在火山的喷发阶段，游客被建议远离该地区。

5.Residents are trained on how to respond during the eruptive phase of a nearby volcano.

居民接受培训，以便在附近火山的喷发阶段中做出反应。

作文

The study of volcanoes has always fascinated scientists and laypeople alike. One of the most intriguing aspects of volcanology is the concept of the eruptive phase, which refers to the period during which a volcano actively expels lava, ash, and gases. Understanding this phase is crucial for predicting volcanic eruptions and mitigating their impacts on nearby communities. In this essay, I will explore the characteristics of the eruptive phase and its significance in both scientific research and practical applications.Firstly, it is essential to recognize that the eruptive phase can vary significantly from one volcano to another. Some volcanoes may experience a brief and explosive eruptive phase, while others might have prolonged periods of effusive activity, where lava flows steadily from the vent. For instance, the 1980 eruption of Mount St. Helens in the United States began with a series of small eruptions followed by a massive explosive event that reshaped the landscape. This example highlights how the eruptive phase can encompass a range of activities, from mild to catastrophic.Moreover, the eruptive phase is often preceded by signs of volcanic unrest, such as increased seismic activity, ground deformation, and gas emissions. These precursors are critical for volcanologists who monitor volcanoes around the world. By analyzing these indicators, scientists can provide early warnings to communities at risk, potentially saving lives and reducing property damage. The ability to forecast the onset of an eruptive phase is a vital aspect of disaster preparedness.In addition to its practical implications, the eruptive phase also offers valuable insights into the geological processes that shape our planet. During an eruption, researchers can study the composition of the materials expelled, which helps them understand the magma's origin and the conditions within the Earth’s mantle. This information contributes to our knowledge of plate tectonics and the dynamic nature of our planet. For example, the study of the eruptive phase of Kilauea in Hawaii has revealed much about hotspot volcanism and the movement of tectonic plates.Furthermore, the eruptive phase plays a significant role in shaping ecosystems and landscapes. Volcanic eruptions can create new landforms, such as islands and mountains, and influence local climates. The ash and gases released during an eruptive phase can enrich soils, leading to fertile agricultural lands in the long term. However, the immediate effects of an eruption can be devastating, causing destruction to habitats and displacing wildlife. Understanding the dual nature of the eruptive phase—both destructive and constructive—is essential for environmental management and conservation efforts.In conclusion, the eruptive phase of a volcano is a complex and multifaceted phenomenon that holds great importance for scientists, policymakers, and communities living near volcanic regions. By studying the characteristics and implications of this phase, we can better prepare for future eruptions and gain a deeper understanding of the Earth’s geological processes. The ongoing research into the eruptive phase not only enhances our knowledge of volcanology but also underscores the need for effective communication and preparedness strategies to protect lives and livelihoods in vulnerable areas.

火山研究一直以来都吸引着科学家和普通人的兴趣。火山学中一个最引人入胜的方面是“喷发阶段”的概念，它指的是火山主动喷出熔岩、灰烬和气体的时期。理解这一阶段对于预测火山喷发和减轻其对附近社区影响至关重要。在这篇文章中，我将探讨喷发阶段的特征及其在科学研究和实际应用中的重要性。首先，必须认识到喷发阶段在不同火山之间可能有显著差异。一些火山可能经历短暂且爆炸性的喷发阶段，而其他火山可能有持续的流动活动，在该阶段熔岩从通道稳步流出。例如，美国圣海伦斯山1980年的喷发开始于一系列小规模喷发，随后发生了一次巨大的爆炸事件，重塑了地貌。这个例子突显了喷发阶段可以涵盖从温和到灾难性的各种活动。此外，喷发阶段通常会在火山不安的迹象之后出现，例如地震活动增加、地面变形和气体排放。这些前兆对于监测全球火山的火山学家至关重要。通过分析这些指标，科学家可以向面临风险的社区提供早期警告，从而潜在地拯救生命并减少财产损失。预测喷发阶段的能力是灾害准备的重要方面。除了其实际意义外，喷发阶段还为我们提供了关于塑造我们星球的地质过程的宝贵见解。在喷发期间，研究人员可以研究喷出的物质成分，这有助于他们了解岩浆的来源以及地球地幔内的条件。这些信息有助于我们了解板块构造和我们星球的动态特性。例如，对夏威夷基拉韦厄火山的喷发阶段的研究揭示了热点火山活动和板块运动的许多内容。此外，喷发阶段在塑造生态系统和地貌方面也发挥着重要作用。火山喷发可以创造新的地形，如岛屿和山脉，并影响局部气候。在长期内，喷发期间释放的灰烬和气体可以使土壤肥沃，导致农业用地的丰富。然而，喷发的直接影响可能是毁灭性的，造成栖息地的破坏并迫使野生动物迁移。理解喷发阶段的双重性质——既具破坏性又具建设性——对于环境管理和保护工作至关重要。总之，火山的喷发阶段是一个复杂而多面的现象，对于科学家、政策制定者以及生活在火山区域的社区具有重要意义。通过研究这一阶段的特征和影响，我们可以更好地为未来的喷发做好准备，并深入理解地球的地质过程。对喷发阶段的持续研究不仅增强了我们对火山学的知识，还强调了有效沟通和准备策略以保护脆弱地区的生命和生计的必要性。