effusive rock

简明释义

喷出岩

英英释义

例句

1.Studying effusive rock 喷发岩 helps us understand the history of volcanic activity in the region.

研究喷发岩 effusive rock 有助于我们理解该地区火山活动的历史。

2.The texture of effusive rock 喷发岩 can vary greatly depending on the cooling rate.

根据冷却速度，喷发岩 effusive rock 的质地可能有很大不同。

3.During our hike, we encountered large boulders of effusive rock 喷发岩 along the trail.

在我们的远足中，我们在小径上遇到了大型的喷发岩 effusive rock 巨石。

4.The geologist explained that the formation of effusive rock 喷发岩 is a result of rapid cooling of lava.

地质学家解释说，喷发岩 effusive rock 的形成是熔岩快速冷却的结果。

5.The volcanic eruption produced vast amounts of effusive rock 喷发岩 that reshaped the landscape.

火山喷发产生了大量的喷发岩 effusive rock，重塑了地貌。

作文

The study of geology reveals a fascinating world beneath our feet, one filled with various types of rocks that tell the story of our planet's history. Among these, effusive rock is particularly intriguing. 喷出岩, as it is known in Chinese, forms from the rapid cooling of molten lava that erupts onto the Earth's surface. This process not only shapes the landscape but also provides valuable insights into volcanic activity and the composition of the Earth’s crust.To understand effusive rock, we must first delve into the nature of volcanic eruptions. When magma from beneath the Earth's crust finds its way to the surface, it can either explode violently, leading to the formation of explosive rocks, or flow gently, resulting in the creation of effusive rock. The latter occurs when lava flows out of a volcano and spreads across the ground, cooling relatively quickly compared to its explosive counterparts.One of the most common types of effusive rock is basalt, which covers much of the ocean floor and is also found in various volcanic regions around the world. Basalt is characterized by its dark color and fine-grained texture, which results from the rapid cooling of lava that has low viscosity. This means that the lava can flow easily, allowing it to cover large areas before solidifying. The presence of 喷出岩 like basalt is crucial for understanding the geological processes that shape our planet.In addition to basalt, another notable type of effusive rock is pumice. Pumice is unique because it forms when volcanic lava cools and depressurizes quickly, trapping gas bubbles within the rock. This results in a light, porous material that can float on water. The formation of pumice is a fascinating example of how different conditions during a volcanic eruption can lead to the creation of distinct rock types. Understanding 喷出岩 like pumice is essential for geologists, as it can provide clues about the conditions under which the lava was formed.The study of effusive rock also has practical implications. For instance, basalt is often used in construction and road building due to its durability and abundance. Moreover, pumice is utilized in various industries, including cosmetics and horticulture, thanks to its lightweight and abrasive properties. Thus, the significance of 喷出岩 extends beyond mere academic interest; it plays a vital role in our daily lives and the economy.Furthermore, the exploration of effusive rock contributes to our understanding of volcanic hazards. By studying the patterns and characteristics of volcanic eruptions, scientists can better predict future events and mitigate risks to nearby communities. This research is crucial, especially in regions prone to volcanic activity, where the consequences of an eruption can be devastating.In conclusion, effusive rock serves as a window into the dynamic processes of our planet. Through the study of these rocks, we gain insights into the history of volcanic activity, the composition of the Earth’s crust, and even the economic benefits they provide. As we continue to explore and understand the geological features of our world, the significance of 喷出岩 will undoubtedly remain a key area of interest for both scientists and the general public alike.