ignimbrite

简明释义

英[ˈɪɡnɪmˌbraɪt]美[ˈɪɡnɪmˌbraɪt]

n. 熔灰岩，[岩] 熔结凝灰岩

英英释义

单词用法

同义词

反义词

例句

1.These eruptions have included: Hawaiian fire-fountaining, Strombolian explosions, and Plinian falls and ignimbrite.

这些喷发包括：夏威夷大火喷泉，斯特伦伯利亚大爆炸，普利尼安陨石和火成岩。

2.These eruptions have included: Hawaiian fire-fountaining, Strombolian explosions, and Plinian falls and ignimbrite.

这些喷发包括：夏威夷大火喷泉，斯特伦伯利亚大爆炸，普利尼安陨石和火成岩。

3.During the hike, we encountered layers of ignimbrite (火山灰岩) that had solidified over thousands of years.

在徒步旅行中，我们遇到了经过数千年固化的ignimbrite（火山灰岩）层。

4.Researchers studied the composition of the ignimbrite (火山灰岩) to understand the eruption history of the volcano.

研究人员研究了ignimbrite（火山灰岩）的成分，以了解火山的喷发历史。

5.The geological survey revealed a large deposit of ignimbrite (火山灰岩) in the area, indicating past volcanic activity.

地质调查显示该地区有大量的ignimbrite（火山灰岩）沉积，表明过去有火山活动。

6.The town was built on a foundation of ignimbrite (火山灰岩), which provided excellent stability for the structures.

这个城镇建在ignimbrite（火山灰岩）的基础上，为建筑提供了良好的稳定性。

7.The color variations in the ignimbrite (火山灰岩) reflect different phases of volcanic eruptions.

在ignimbrite（火山灰岩）中的颜色变化反映了火山喷发的不同阶段。

作文

The study of geology reveals many fascinating aspects of our planet, particularly when examining volcanic activity and its consequences. One such consequence is the formation of a unique type of volcanic rock known as ignimbrite. This term refers to a type of pyroclastic rock that forms when volcanic ash and pumice are deposited from an explosive eruption. The process is not only interesting but also critical in understanding the history of volcanic eruptions and their impact on the environment.Ignimbrite is typically characterized by its light color and porous texture, which results from the rapid cooling and solidification of volcanic materials. When a volcano erupts explosively, it ejects a mixture of gases, ash, and fragments of rock into the atmosphere. As this material falls back to the ground, it can accumulate and solidify, forming layers of ignimbrite that can be several meters thick.Geologists often study these formations to gain insights into past volcanic events. For example, the thickness and distribution of ignimbrite deposits can indicate the scale of the eruption and the dynamics of the volcanic system. By analyzing the mineral composition and texture of the ignimbrite, scientists can also infer the temperature and pressure conditions during the eruption.One notable example of ignimbrite formation occurred during the eruption of Mount St. Helens in 1980. The explosive eruption produced vast amounts of ash and pumice that eventually settled to form extensive layers of ignimbrite. This event provided geologists with a rare opportunity to study the characteristics and effects of pyroclastic flows, which are fast-moving currents of hot gas and volcanic matter. The deposits left behind by this eruption continue to be a valuable resource for researchers seeking to understand the mechanisms of explosive volcanism.In addition to their geological significance, ignimbrite deposits have practical implications for society. Areas with significant ignimbrite formations can influence land use, agriculture, and even urban planning. The porous nature of ignimbrite can affect groundwater flow and availability, making it crucial for water resource management in regions with volcanic activity.Moreover, understanding ignimbrite can contribute to hazard assessment and mitigation strategies. By recognizing areas prone to explosive eruptions and the potential for ignimbrite formation, communities can better prepare for future volcanic events. This preparedness is vital for minimizing risks to life and property, especially in densely populated regions near active volcanoes.In conclusion, the term ignimbrite encapsulates a significant aspect of volcanic geology, representing both the beauty and danger of our planet's dynamic systems. Through the study of ignimbrite, we can learn about the past, plan for the future, and appreciate the complex interactions between volcanic activity and the environment. As we continue to explore and understand these geological phenomena, the importance of ignimbrite in both scientific research and practical applications cannot be overstated.

地质学的研究揭示了我们星球的许多迷人方面，特别是在研究火山活动及其后果时。其中一个后果是形成一种独特的火山岩，称为熔岩流。这个术语指的是一种火山灰和浮石在爆炸性喷发中沉积而成的火山碎屑岩。这个过程不仅有趣，而且对于理解火山喷发的历史及其对环境的影响至关重要。熔岩流通常以其浅色和多孔质地为特征，这源于火山材料的快速冷却和固化。当火山发生爆炸性喷发时，它会将气体、灰烬和岩石碎片混合物喷射到大气中。当这些物质重新落回地面时，它们可以积累并固化，形成厚达数米的熔岩流层。地质学家经常研究这些形成，以深入了解过去的火山事件。例如，熔岩流沉积的厚度和分布可以指示喷发的规模和火山系统的动态。通过分析熔岩流的矿物成分和质地，科学家还可以推断喷发期间的温度和压力条件。一个值得注意的熔岩流形成的例子发生在1980年圣海伦斯山的喷发中。这次爆炸性喷发产生了大量的灰烬和浮石，最终沉积形成了广泛的熔岩流层。这一事件为地质学家提供了一个难得的机会来研究火山碎屑流的特征和影响，这些流动是由热气体和火山物质组成的快速移动的流动。这次喷发留下的沉积物继续成为研究人员理解爆炸性火山机制的宝贵资源。除了它们的地质意义外，熔岩流沉积物对社会也有实际影响。具有显著熔岩流形成的地区可能会影响土地利用、农业甚至城市规划。熔岩流的多孔特性可能会影响地下水流动和可用性，因此在火山活动区域的水资源管理中至关重要。此外，理解熔岩流可以有助于危险评估和减灾策略。通过识别易发生爆炸性喷发和潜在熔岩流形成的区域，社区可以更好地为未来的火山事件做好准备。这种准备对于减少生命和财产的风险至关重要，尤其是在靠近活火山的高人口密度地区。总之，术语熔岩流概括了火山地质学的一个重要方面，代表着我们星球动态系统的美丽和危险。通过对熔岩流的研究，我们可以了解过去，为未来做计划，并欣赏火山活动与环境之间复杂的相互作用。随着我们继续探索和理解这些地质现象，熔岩流在科学研究和实际应用中的重要性不容小觑。