active margin

简明释义

1. 活动边缘; 2. 主动边缘;

英英释义

例句

1.The study of active margins 活跃边缘 helps scientists understand the processes of plate tectonics.

对活跃边缘 active margins的研究帮助科学家理解板块构造的过程。

2.The geological features along the active margin 活跃边缘 indicate significant tectonic activity.

沿着活跃边缘 active margin的地质特征表明了显著的构造活动。

3.Marine biodiversity is often higher near the active margin 活跃边缘 due to nutrient-rich upwelling.

由于富含养分的上涌，活跃边缘 active margin附近的海洋生物多样性通常更高。

4.Countries located on the active margin 活跃边缘 often experience more earthquakes than those on passive margins.

位于活跃边缘 active margin的国家通常比处于被动边缘的国家经历更多的地震。

5.The Pacific Ring of Fire is a prime example of an active margin 活跃边缘 with numerous volcanoes.

太平洋火环是一个典型的活跃边缘 active margin，拥有众多火山。

作文

The term active margin refers to the tectonic boundaries where an oceanic plate converges with a continental plate. These regions are characterized by significant geological activity, including earthquakes and volcanic eruptions. Understanding active margin areas is crucial for geologists and environmental scientists as they study the Earth's dynamic processes. In the context of plate tectonics, an active margin is typically found along the edges of continents where they meet the ocean. This contrasts with passive margins, which are located on the opposite side of the ocean basin and exhibit minimal geological activity. The distinction between these two types of margins helps researchers predict natural disasters and assess geological hazards.One of the most famous examples of an active margin is the west coast of North America, where the Pacific Plate interacts with the North American Plate. This interaction results in frequent earthquakes, such as those experienced in California. The San Andreas Fault, a well-known transform fault, is a direct result of this tectonic activity. The study of such active margins provides insights into the forces that shape our planet and can help mitigate risks associated with seismic events.Moreover, active margins play a significant role in the formation of mountain ranges. As tectonic plates collide, they can push land upwards, creating impressive geological features like the Rocky Mountains or the Andes. These mountains not only alter local ecosystems but also influence weather patterns and human activities. For instance, the presence of an active margin can lead to increased rainfall on the windward side of a mountain range, while the leeward side may experience arid conditions, creating deserts.Additionally, the study of active margins extends beyond geology. It has implications for biodiversity and marine ecosystems. Coastal areas near active margins often host rich marine life due to nutrient upwelling caused by tectonic activity. This phenomenon supports fishing industries and contributes to local economies. However, the same regions are also vulnerable to tsunamis and other natural disasters, which pose risks to both human populations and wildlife.In conclusion, the concept of active margin is vital for understanding the Earth's geological processes. These regions are not only sites of intense geological activity but also play a crucial role in shaping landscapes, influencing ecosystems, and determining human settlements. By studying active margins, scientists can better prepare for natural disasters, protect biodiversity, and appreciate the intricate workings of our planet. As we continue to explore and learn about these dynamic areas, it becomes increasingly clear that the Earth is a constantly changing entity, driven by the forces of nature at its active margins.

“active margin”一词指的是海洋板块与大陆板块相交的构造边界。这些区域以显著的地质活动为特征，包括地震和火山喷发。理解active margin地区对于地质学家和环境科学家至关重要，因为他们研究地球的动态过程。在板块构造的背景下，active margin通常位于大陆边缘与海洋相接的地方。这与位于海洋盆地对侧的被动边缘形成对比，后者展现出最小的地质活动。这两种边缘之间的区别帮助研究人员预测自然灾害并评估地质危害。北美西海岸是最著名的active margin例子之一，太平洋板块与北美板块相互作用，导致频繁的地震，例如加利福尼亚州的地震。圣安德烈亚斯断层就是这一构造活动的直接结果。对这样的active margins的研究提供了关于塑造我们星球的力量的深入见解，并可以帮助减轻与地震事件相关的风险。此外，active margins在山脉的形成中也起着重要作用。当构造板块碰撞时，它们可以将土地向上推，形成令人印象深刻的地质特征，如落基山脉或安第斯山脉。这些山脉不仅改变了当地生态系统，还影响了天气模式和人类活动。例如，active margin的存在可能导致山脉迎风面降雨增多，而背风面则可能经历干旱，形成沙漠。此外，对active margins的研究超越了地质学。它对生物多样性和海洋生态系统有重要影响。靠近active margins的沿海地区由于构造活动引起的营养上升，通常拥有丰富的海洋生命。这种现象支持渔业产业并促进地方经济。然而，同样的区域也容易受到海啸和其他自然灾害的威胁，这对人类和野生动物都构成风险。总之，active margin的概念对于理解地球的地质过程至关重要。这些区域不仅是强烈地质活动的地点，而且在塑造地貌、影响生态系统和决定人类定居方面发挥着关键作用。通过研究active margins，科学家可以更好地为自然灾害做准备，保护生物多样性，并欣赏我们星球复杂的运作方式。随着我们继续探索和学习这些动态区域，越来越明显的是，地球是一个不断变化的实体，由其active margins的自然力量驱动。