basic igneous rock

简明释义

基性火成岩;

英英释义

例句

1.Geologists often study basic igneous rock 基性火成岩 to understand the Earth's mantle.

地质学家通常研究基性火成岩基性火成岩以了解地球的地幔。

2.The characteristics of basic igneous rock 基性火成岩 include low silica content and high iron and magnesium.

基性火成岩基性火成岩的特征包括低二氧化硅含量和高铁镁含量。

3.During our field trip, we collected samples of basic igneous rock 基性火成岩 from the nearby lava flow.

在我们的实地考察中，我们从附近的熔岩流中收集了基性火成岩基性火成岩的样本。

4.The geology class learned about the formation of basic igneous rock 基性火成岩 through volcanic activity.

地质课上学习了通过火山活动形成的基性火成岩基性火成岩。

5.Basalt is a common type of basic igneous rock 基性火成岩 found in oceanic crust.

玄武岩是一种常见的基性火成岩基性火成岩，在海洋地壳中发现。

作文

The study of geology reveals a fascinating world beneath our feet, one that is composed of various types of rocks, each with its unique properties and formation processes. Among these, the category of igneous rocks stands out due to its origins from molten magma. Within this category, there exists a specific type known as basic igneous rock, which is characterized by its lower silica content and higher levels of iron and magnesium. Understanding basic igneous rock is crucial for geologists and students alike, as it plays a significant role in the Earth's crust and the overall geological processes.Igneous rocks are formed when magma cools and solidifies, either beneath the Earth’s surface or after a volcanic eruption. The cooling process can occur slowly, leading to the formation of coarse-grained rocks, or quickly, resulting in fine-grained textures. Basic igneous rock typically forms from magma that is less viscous, allowing gases to escape more easily, which leads to fewer bubbles and a denser structure compared to acidic igneous rocks.One of the most common examples of basic igneous rock is basalt, which is often found in oceanic crust and volcanic islands. Basalt is known for its dark color and fine-grained texture, making it distinct from other lighter-colored igneous rocks like granite. The formation of basalt is predominantly linked to tectonic activity, where the movement of the Earth’s plates creates conditions for magma to rise and erupt.The significance of basic igneous rock extends beyond its physical characteristics. It serves as a vital component in understanding the geological history of an area. By studying the distribution and composition of basic igneous rock, geologists can infer past volcanic activity, plate tectonics, and even the environmental conditions that prevailed millions of years ago. For instance, regions with extensive basalt formations often indicate a history of volcanic eruptions, which can inform scientists about the potential for future volcanic activity.Moreover, basic igneous rock has practical applications in modern society. Its durability and abundance make it a popular choice for construction materials, such as road base and concrete aggregates. Additionally, the mining of certain minerals associated with basic igneous rock, such as olivine and pyroxene, supports various industries, including electronics and aerospace.In conclusion, basic igneous rock is not just a mere classification within geology; it embodies a wealth of information about the Earth’s processes and history. From its formation through volcanic activity to its implications for human use, basic igneous rock is an essential subject of study for anyone interested in the natural world. By deepening our understanding of these rocks, we gain insights into the dynamic nature of our planet and the forces that shape it. As we continue to explore and study geology, the importance of basic igneous rock will undoubtedly remain a cornerstone of our knowledge about the Earth.

地质学的研究揭示了我们脚下一个迷人的世界，这个世界由各种类型的岩石组成，每种岩石都有其独特的性质和形成过程。在这些岩石中，火成岩类别因其来自熔融岩浆的起源而脱颖而出。在这个类别中，有一种特定类型被称为基性火成岩，其特点是二氧化硅含量较低，铁和镁含量较高。理解基性火成岩对地质学家和学生来说至关重要，因为它在地壳和整体地质过程中扮演着重要角色。火成岩是在岩浆冷却和固化后形成的，无论是在地球表面下还是在火山喷发后。冷却过程可以缓慢进行，导致粗粒岩石的形成，或者快速进行，导致细粒纹理的形成。基性火成岩通常形成于粘度较低的岩浆，这使得气体更容易逸出，从而导致气泡较少，结构比酸性火成岩更致密。基性火成岩最常见的例子之一是玄武岩，它通常存在于海洋地壳和火山岛屿中。玄武岩因其深色和细粒纹理而闻名，使其与其他浅色火成岩（如花岗岩）区别开来。玄武岩的形成主要与构造活动有关，地球板块的运动创造了岩浆上升和喷发的条件。基性火成岩的重要性不仅仅体现在其物理特性上。它作为理解某个地区地质历史的重要组成部分。通过研究基性火成岩的分布和成分，地质学家可以推断出过去的火山活动、板块构造，甚至数百万年前的环境条件。例如，广泛的玄武岩形成区域通常表明有火山喷发的历史，这可以告知科学家关于未来火山活动的潜在可能性。此外，基性火成岩在现代社会中也有实际应用。其耐用性和丰富性使其成为建筑材料（如道路基础和混凝土骨料）的热门选择。此外，与基性火成岩相关的某些矿物（如橄榄石和辉石）的开采支持了包括电子和航空航天在内的各个行业。总之，基性火成岩不仅仅是地质学中的一个分类；它蕴含了关于地球过程和历史的丰富信息。从通过火山活动形成到对人类使用的影响，基性火成岩是任何对自然世界感兴趣的人必须研究的主题。通过加深我们对这些岩石的理解，我们获得了对塑造我们星球的动态性质的洞察。随着我们继续探索和研究地质学，基性火成岩的重要性无疑将继续成为我们对地球知识的基石。