amygdaloidal texture

简明释义

杏仁状结构

英英释义

例句

1.During the field trip, students learned to identify amygdaloidal texture in various igneous rocks.

在实地考察中，学生们学习识别各种火成岩中的杏仁状结构。

2.The geologist noted the presence of amygdaloidal texture in the volcanic rock samples, indicating past gas bubbles that had been filled with minerals.

地质学家注意到火山岩样本中存在杏仁状结构，这表明过去的气泡被矿物填充。

3.In her research, she focused on the amygdaloidal texture of basalt, which often contains quartz and calcite deposits.

在她的研究中，她专注于玄武岩的杏仁状结构，这种结构通常包含石英和方解石沉积物。

4.The rock's amygdaloidal texture suggested it had undergone significant geological changes over millions of years.

该岩石的杏仁状结构表明它在数百万年间经历了显著的地质变化。

5.Samples collected from the site displayed a distinct amygdaloidal texture, which was crucial for understanding the area's volcanic history.

从现场收集的样本显示出明显的杏仁状结构，这对于理解该地区的火山历史至关重要。

作文

The study of geological formations reveals a fascinating array of textures and structures that tell the story of our planet's history. Among these, the term amygdaloidal texture refers specifically to a type of volcanic rock texture characterized by the presence of almond-shaped cavities, or amygdules, which are often filled with secondary minerals. This unique texture is an indicator of the conditions under which the rock formed and can provide valuable insights into the volcanic activity that shaped the landscape. To understand amygdaloidal texture, it is essential to first grasp the concept of amygdules. These are formed when gas bubbles trapped in lava cool and solidify, leaving behind voids in the rock. Over time, these voids can be filled with various minerals such as quartz, calcite, or zeolites, leading to the characteristic amygdaloidal appearance. The presence of these minerals not only enhances the aesthetic appeal of the rock but also reflects the mineralogical diversity present in the environment where the rock was formed.Geologists often encounter amygdaloidal texture in basaltic lavas, particularly in regions with a history of explosive volcanic activity. The texture serves as a key identifier for these rocks, helping geologists classify and understand the volcanic processes that created them. For instance, the size and distribution of amygdules can reveal information about the rate of cooling of the lava and the pressure conditions during its formation. Moreover, studying rocks with amygdaloidal texture can also shed light on the evolution of volcanic systems. As magma rises towards the surface, it can undergo various changes, including the release of gases that contribute to the formation of amygdules. By analyzing the composition of the minerals filling these cavities, scientists can infer the chemical environment of the magma chamber and the dynamics of volcanic eruptions. In addition to their geological significance, rocks exhibiting amygdaloidal texture have practical applications. They are often used as decorative stones in landscaping and architecture due to their unique appearance. The colorful minerals filling the amygdules can create striking visual effects, making them popular choices for countertops, tiles, and other ornamental uses. In conclusion, the term amygdaloidal texture encapsulates a complex interplay of geological processes that reflect the history of volcanic activity. Understanding this texture allows us to appreciate not only the beauty of these rocks but also the intricate processes that have shaped our planet over millions of years. As we continue to explore the Earth's geological features, the study of textures like amygdaloidal texture will remain a crucial aspect of understanding our dynamic world. Through this exploration, we gain a deeper appreciation for the natural forces at work beneath our feet, reminding us of the ever-changing nature of our planet and the stories that lie within its rocks.

地质构造的研究揭示了一系列迷人的纹理和结构，讲述了我们星球历史的故事。在这些结构中，术语杏仁状纹理特指一种火山岩纹理，其特征是存在杏仁形的空腔或称为“杏仁石”，这些空腔通常充满了次生矿物。这种独特的纹理是岩石形成条件的指示，可以提供有关塑造景观的火山活动的宝贵见解。要理解杏仁状纹理，首先必须掌握“杏仁石”的概念。这些是在熔岩冷却和固化时困住的气泡形成的，留下了岩石中的空隙。随着时间的推移，这些空隙可以被各种矿物填充，例如石英、方解石或沸石，从而导致特征性的杏仁状外观。这些矿物的存在不仅增强了岩石的美学吸引力，还反映了岩石形成环境中的矿物多样性。地质学家通常在玄武岩熔岩中遇到杏仁状纹理，特别是在有爆炸性火山活动历史的地区。这种纹理作为这些岩石的关键标识，帮助地质学家对其进行分类并理解创造它们的火山过程。例如，杏仁石的大小和分布可以揭示熔岩冷却速率和形成期间的压力条件的信息。此外，研究具有杏仁状纹理的岩石还可以揭示火山系统的演变。当岩浆上升到表面时，它可能会经历各种变化，包括释放气体，这些气体有助于杏仁石的形成。通过分析填充这些空腔的矿物的成分，科学家可以推断出岩浆房的化学环境和火山喷发的动态。除了地质意义外，展示杏仁状纹理的岩石还有实际应用。由于其独特的外观，它们常用于园艺和建筑装饰石。填充杏仁石的彩色矿物可以创造引人注目的视觉效果，使它们成为台面、瓷砖和其他装饰用途的热门选择。总之，术语杏仁状纹理概括了反映火山活动历史的复杂地质过程的相互作用。理解这种纹理使我们能够欣赏这些岩石的美丽，以及数百万年来塑造我们星球的复杂过程。随着我们继续探索地球的地质特征，对像杏仁状纹理这样的纹理的研究将始终是理解我们动态世界的重要方面。通过这种探索，我们对脚下的自然力量有了更深的欣赏，提醒我们我们星球的不断变化的性质以及其岩石中蕴藏的故事。