aphanitic texture

简明释义

隐晶质结构;

英英释义

例句

1.In geology class, we learned how to identify rocks with an aphanitic texture 隐晶质纹理 by their lack of visible crystals.

在地质课上，我们学习了如何通过缺乏可见晶体来识别具有aphanitic texture 隐晶质纹理的岩石。

2.The volcanic rock sample displayed an aphanitic texture 隐晶质纹理, making it difficult to distinguish individual minerals.

这个火山岩样本显示出aphanitic texture 隐晶质纹理，使得很难区分个别矿物。

3.The geologist noted that the aphanitic texture 隐晶质纹理 of the rock indicated a volcanic origin.

地质学家指出，这种岩石的aphanitic texture 隐晶质纹理表明其火山起源。

4.During our field trip, we collected a rock with an aphanitic texture 隐晶质纹理 that was formed from rapid cooling of lava.

在我们的实地考察中，我们收集了一块具有aphanitic texture 隐晶质纹理的岩石，它是由熔岩快速冷却形成的。

5.The basalt we examined had a very fine-grained structure, indicative of its aphanitic texture 隐晶质纹理.

我们检查的玄武岩具有非常细腻的结构，表明其具有aphanitic texture 隐晶质纹理。

作文

In the study of geology, understanding the various textures of igneous rocks is crucial for identifying their formation processes and mineral compositions. One such texture is known as aphanitic texture, which refers to a fine-grained structure where individual mineral crystals are too small to be seen with the naked eye. This characteristic often indicates that the rock cooled quickly from molten lava, typically when it erupts onto the Earth's surface. The rapid cooling prevents the growth of larger crystals, resulting in a homogeneous appearance. Rocks that exhibit aphanitic texture include basalt and rhyolite, both of which are formed from volcanic activity. The significance of aphanitic texture extends beyond mere aesthetics; it provides geologists with valuable insights into the conditions under which the rock was formed. For instance, a rock with an aphanitic texture might suggest a relatively fast eruption, leading to the conclusion that the surrounding environment was conducive to quick cooling, such as a lava flow or a volcanic explosion. In contrast, rocks with a coarser texture, known as phaneritic, indicate slower cooling times, typically occurring beneath the Earth's surface. Furthermore, the presence of an aphanitic texture can influence the physical properties of the rock, such as its porosity and strength. Basalt, which commonly exhibits this texture, is often used in construction due to its durability and resistance to weathering. Understanding the implications of aphanitic texture can also aid in resource exploration, as certain minerals may be more prevalent in these fine-grained formations. When examining rocks in the field, geologists often utilize hand lenses or microscopes to analyze the mineral composition and texture. Identifying aphanitic texture helps them classify the rock accurately and determine its geological history. For students and enthusiasts alike, recognizing this texture is an essential skill in the broader context of petrology and earth sciences. In conclusion, aphanitic texture serves as an important indicator of volcanic activity and cooling rates in igneous rocks. Its study not only enhances our understanding of geological processes but also aids in practical applications such as construction and resource management. By appreciating the nuances of aphanitic texture, we deepen our connection to the dynamic processes that shape our planet.

在地质学的研究中，理解火成岩的各种纹理对于识别其形成过程和矿物成分至关重要。其中一种纹理被称为隐晶质纹理，它指的是一种细粒结构，其中单个矿物晶体太小，肉眼无法看见。这一特征通常表明岩石是由熔融岩浆快速冷却而成，通常发生在它喷发到地球表面时。快速冷却阻止了较大晶体的生长，导致外观均匀。表现出隐晶质纹理的岩石包括玄武岩和流纹岩，它们都是由火山活动形成的。隐晶质纹理的重要性不仅仅体现在美学上；它为地质学家提供了关于岩石形成条件的宝贵见解。例如，具有隐晶质纹理的岩石可能暗示相对快速的喷发，从而得出结论，周围环境有利于快速冷却，例如熔岩流或火山爆炸。相比之下，具有粗糙纹理的岩石，称为显晶质，表明冷却时间较慢，通常发生在地球表面以下。此外，隐晶质纹理的存在可以影响岩石的物理性质，例如孔隙率和强度。玄武岩通常表现出这种纹理，由于其耐久性和抗风化能力，通常用于建筑。理解隐晶质纹理的影响也可以帮助资源勘探，因为某些矿物在这些细粒形成中可能更为普遍。在现场检查岩石时，地质学家通常使用手镜或显微镜分析矿物组成和纹理。识别隐晶质纹理有助于他们准确分类岩石并确定其地质历史。对于学生和爱好者来说，认识这一纹理是岩石学和地球科学广泛背景中的一项基本技能。总之，隐晶质纹理作为火成岩中火山活动和冷却速率的重要指示。它的研究不仅增强了我们对地质过程的理解，还有助于建筑和资源管理等实际应用。通过欣赏隐晶质纹理的细微差别，我们加深了与塑造我们星球的动态过程的联系。