felsic

简明释义

英[ˈfelsɪk]美[ˈfelsɪk]

adj. 长英矿物的

英英释义

单词用法

同义词

反义词

例句

1.The massive sulfides related to felsic volcanic rocks in the back-arc and island arc environments have higher content of gold. According to a vast amount of geo chemical research...

通常形成于弧后或岛弧环境下的同长英质火山岩有关的块状硫化物中的金含量较高。

2.Both the eclogite and the felsic gneiss have not undergone the same high - pressure metamorphic event.

榴辉岩的主体围岩是长英质片麻岩，它与榴辉岩不是相同高压变质作用的产物。

3.Felsic gneiss is the most widely distributed rock type in Archean metamorphic complex areas.

长英质片麻岩是太古宙变质杂岩区最主要的岩石类型。

4.As to the activity of the components, the mafic component is more active than the felsic component.

在组分活性方面，镁铁质组分比长英质组分的活动更为明显。

5.Earlier crystallization of felsic minerals than biotite and garnet is related with much lower crystallization pressure.

长英质矿物早于黑云母和石榴子石结晶与岩浆侵位浅（结晶压力低）相关。

6.Both the eclogite and the felsic gneiss have not undergone the same high-pressure metamorphic event.

榴辉岩的主体围岩是长英质片麻岩，它与榴辉岩不是相同高压变质作用的产物。

7.These reactions involving melt are not only controlled by PT conditions, but also genetically associated with dehydration melting, partial melting of felsic minerals in host rocks.

这类熔体参与变质反应不仅受控于温压条件，而且与寄主岩石脱水熔融、长英质矿物部分熔融存在密切成因关系。

8.The presence of these minerals gives felsic rock its characteristic light gray color.

这些矿物的存在使这种岩石呈特有的浅灰色。

9.The volcanic rock samples collected from the site were primarily composed of felsic 富硅的 minerals.

从现场收集的火山岩样本主要由富硅的矿物组成。

10.Geologists often classify rocks as felsic 富硅的 or mafic based on their mineral content.

地质学家通常根据矿物成分将岩石分类为富硅的或镁铁质的。

11.The granite we observed was a typical example of felsic 富硅的 rock formation.

我们观察到的花岗岩是富硅的岩石形成的典型例子。

12.In terms of composition, felsic 富硅的 rocks contain more silica than their mafic counterparts.

就成分而言，富硅的岩石的二氧化硅含量高于镁铁质岩石。

13.The eruption produced a significant amount of felsic 富硅的 lava, which led to the formation of rhyolite.

这次喷发产生了大量的富硅的熔岩，导致了流纹岩的形成。

作文

The study of geology often introduces us to various terms that describe the composition and characteristics of rocks. One such term is felsic, which refers to igneous rocks that are rich in silica and light-colored minerals. These rocks typically contain a significant amount of feldspar and quartz, making them lighter in color compared to their mafic counterparts, which are darker and richer in iron and magnesium. Understanding the properties of felsic rocks is essential for geologists as they provide insights into the conditions under which they formed. Felsic rocks are commonly found in continental crust, where they form from the cooling and solidification of magma that is high in silica content. This type of magma is less dense than mafic magma, allowing it to rise toward the surface more easily. As a result, felsic rocks are often associated with explosive volcanic eruptions, where the high viscosity of the magma traps gas, leading to violent outbursts. Examples of felsic rocks include granite and rhyolite, both of which are widely studied for their unique properties and formations. Granite, a well-known felsic rock, is often used in construction and monuments due to its durability and aesthetic appeal. The presence of quartz, feldspar, and mica in granite gives it a speckled appearance, making it a popular choice for countertops and flooring. On the other hand, rhyolite, which is the volcanic equivalent of granite, is typically found in areas with past volcanic activity. Its fine-grained texture and composition make it an intriguing subject for geological research, particularly in understanding volcanic processes. The formation of felsic rocks also plays a crucial role in the Earth's geology. As tectonic plates shift and collide, they create conditions that lead to the melting of rocks in the crust. This molten material can then rise to the surface, forming felsic magma. Over time, as this magma cools and crystallizes, it solidifies into felsic rock formations. The study of these processes helps scientists understand the history of our planet and the dynamic nature of its crust. In addition to their geological significance, felsic rocks also have implications for natural resources. Many mineral deposits are associated with felsic intrusions, making them important targets for mining. For instance, the presence of certain metals, such as gold and silver, is often linked to felsic magmatic processes. This connection highlights the economic importance of understanding the distribution and formation of these rocks. In conclusion, the term felsic encapsulates a wide range of geological phenomena related to igneous rocks rich in silica. From their formation and characteristics to their role in the Earth's crust and economic significance, felsic rocks are a vital area of study in geology. By deepening our understanding of these rocks, we gain valuable insights into the processes that shape our planet and the resources it provides. The exploration of felsic rocks not only enriches our knowledge of geology but also enhances our appreciation for the natural world around us.

地质学的研究常常向我们介绍各种术语，这些术语描述了岩石的成分和特征。其中一个术语是felsic，指的是富含二氧化硅和浅色矿物的火成岩。这些岩石通常含有大量的长石和石英，使其颜色相比于富含铁和镁的镁铁质岩石更为浅淡。理解felsic岩石的特性对地质学家至关重要，因为它们提供了关于形成条件的见解。 felsic岩石通常存在于大陆地壳中，它们是由富含二氧化硅的岩浆冷却和固化而成。这种类型的岩浆比镁铁质岩浆密度低，使其更容易上升到地表。因此，felsic岩石通常与爆炸性的火山喷发相关，其中岩浆的高粘度会困住气体，导致剧烈的喷发。felsic岩石的例子包括花岗岩和流纹岩，它们因独特的特性和形成方式而受到广泛研究。 花岗岩是一种知名的felsic岩石，由于其耐久性和美观性，常用于建筑和纪念碑。花岗岩中石英、长石和云母的存在使其呈现出斑点状的外观，成为厨房台面和地板的热门选择。另一方面，流纹岩则是花岗岩的火山等价物，通常在过去有火山活动的地区发现。其细粒的纹理和成分使其成为地质研究的一个引人入胜的主题，特别是在理解火山过程方面。 felsic岩石的形成在地球地质中也发挥着至关重要的作用。当构造板块移动和碰撞时，会产生导致地壳岩石熔化的条件。这种熔融物质随后可以上升到地表，形成felsic岩浆。随着时间的推移，当这种岩浆冷却并结晶时，它会固化为felsic岩石。对这些过程的研究帮助科学家理解我们星球的历史以及其地壳的动态特性。 除了地质意义外，felsic岩石对自然资源也有影响。许多矿藏与felsic侵入体相关联，使它们成为采矿的重要目标。例如，某些金属（如金和银）的存在往往与felsic岩浆过程相关。这一联系突显了理解这些岩石的分布和形成的重要经济意义。 总之，术语felsic概括了与富含二氧化硅的火成岩相关的一系列地质现象。从它们的形成和特征，到它们在地壳中的作用和经济意义，felsic岩石是地质学研究的重要领域。通过加深对这些岩石的理解，我们获得了关于塑造我们星球及其提供资源的过程的宝贵见解。探索felsic岩石不仅丰富了我们对地质学的知识，也增强了我们对周围自然世界的欣赏。