cone of dejection

简明释义

1. 洪积锥; 2. 冲积锥;

英英释义

例句

1.During our hike, we came across a cone of dejection 抑郁锥体 left by an ancient volcano, which was fascinating to observe.

在我们的徒步旅行中，我们遇到了一个由古代火山留下的抑郁锥体 抑郁锥体，这让人感到非常有趣。

2.The geologist explained that the cone of dejection 抑郁锥体 forms when volcanic eruptions create a depression around the vent.

地质学家解释说，抑郁锥体 抑郁锥体 是在火山喷发时在通风口周围形成的凹陷。

3.In geology class, we learned how a cone of dejection 抑郁锥体 indicates past volcanic activity.

在地质课上，我们了解到抑郁锥体 抑郁锥体 表示过去的火山活动。

4.The park ranger pointed out the cone of dejection 抑郁锥体 as a key feature of the volcanic landscape.

公园护林员指出抑郁锥体 抑郁锥体 是火山景观的一个关键特征。

5.Scientists use the shape of a cone of dejection 抑郁锥体 to study the flow of lava and its impact on the landscape.

科学家们利用抑郁锥体 抑郁锥体 的形状来研究熔岩的流动及其对地形的影响。

作文

In the study of meteorology and environmental science, the term cone of dejection refers to a specific area of land that is affected by volcanic activity, particularly during eruptions. This phenomenon occurs when volcanic material such as ash, rock, and lava flows down the slopes of a volcano, creating a conical shape that can be observed on the surface of the earth. Understanding the concept of cone of dejection is crucial for predicting volcanic behavior and assessing potential hazards in nearby communities. When a volcano erupts, it often releases a significant amount of debris into the atmosphere. This debris can include ash clouds that rise high into the sky, affecting air travel and weather patterns. However, the material that falls back to the ground tends to accumulate around the base of the volcano, forming a cone of dejection which can vary in size depending on the intensity and duration of the eruption. The formation of a cone of dejection can have several implications for the surrounding environment. For instance, the accumulation of volcanic material can create new landforms and alter existing landscapes. This process contributes to soil fertility, as volcanic ash is rich in minerals that can benefit plant growth. In some areas, this has led to the establishment of lush vegetation and thriving ecosystems. However, the presence of a cone of dejection also poses significant risks. Communities located near active volcanoes must be aware of the potential dangers associated with eruptions. The flow of lava and the deposition of ash can destroy infrastructure, displace populations, and lead to long-term environmental changes. Therefore, understanding the dynamics of a cone of dejection is essential for disaster preparedness and response. Geologists and volcanologists closely monitor volcanic activity to predict eruptions and assess the risks associated with cone of dejection zones. They use various tools and techniques, including satellite imagery, seismographs, and gas emission measurements, to gather data about the behavior of volcanoes. This information helps them to develop models that can forecast the likelihood of an eruption and its potential impacts on the surrounding area. In conclusion, the term cone of dejection encapsulates a significant aspect of volcanic activity that has both positive and negative implications for the environment and human society. While it can contribute to the creation of fertile land, it also represents a serious threat to communities living in proximity to volcanoes. Increased awareness and understanding of the cone of dejection are vital for ensuring safety and mitigating the risks associated with volcanic eruptions. As we continue to study these natural phenomena, we can better prepare for their impacts and protect both people and the environment from the potentially devastating effects of volcanic activity.

在气象学和环境科学的研究中，术语dejection cone指的是一个特定的土地区域，该区域受到火山活动的影响，特别是在喷发期间。这个现象发生在火山物质，如灰烬、岩石和熔岩，从火山的斜坡流下时，形成一个可以在地表观察到的锥形。理解dejection cone的概念对于预测火山行为和评估附近社区的潜在危险至关重要。当火山喷发时，通常会释放出大量的碎片到大气中。这些碎片可能包括高耸入云的灰烬云，影响航空旅行和天气模式。然而，落回地面的物质往往会在火山基部积累，形成一个dejection cone，其大小取决于喷发的强度和持续时间。dejection cone的形成对周围环境有几个影响。例如，火山物质的积累可以创造新的地貌并改变现有的景观。这个过程有助于土壤的肥沃，因为火山灰富含矿物质，可以促进植物生长。在某些地区，这导致了茂盛的植被和繁荣的生态系统的建立。然而，dejection cone的存在也带来了重大风险。位于活火山附近的社区必须意识到与喷发相关的潜在危险。熔岩流动和灰烬沉积可能会摧毁基础设施，驱逐人口，并导致长期的环境变化。因此，理解dejection cone的动态对于灾害准备和应对至关重要。地质学家和火山学家密切监测火山活动，以预测喷发并评估与dejection cone区域相关的风险。他们使用各种工具和技术，包括卫星图像、地震仪和气体排放测量，收集有关火山行为的数据。这些信息帮助他们开发模型，预测喷发的可能性及其对周围地区的潜在影响。总之，术语dejection cone概括了火山活动的重要方面，这对环境和人类社会都有正面和负面的影响。虽然它可以促进肥沃土地的形成，但它也代表了对居住在火山附近的社区的严重威胁。增加对dejection cone的认识和理解对于确保安全和减轻与火山喷发相关的风险至关重要。随着我们对这些自然现象的研究不断深入，我们可以更好地为其影响做准备，保护人类和环境免受火山活动可能造成的破坏性影响。