tephrite

简明释义

英[ˈtefraɪt]美[ˈtefˌraɪt]

n. [岩] 碱玄岩

英英释义

单词用法

同义词

反义词

例句

1.Leucite tephrite was derived from the more enriched mantle source with lower degree of partial melting of mantle source than alkaline olivine basalt.

相对于碱性橄榄玄武岩，白榴石碱玄岩来自于更加富集的地幔源区，其地幔的部分熔融程度相对较低。

2.Leucite tephrite was derived from the more enriched mantle source with lower degree of partial melting of mantle source than alkaline olivine basalt.

相对于碱性橄榄玄武岩，白榴石碱玄岩来自于更加富集的地幔源区，其地幔的部分熔融程度相对较低。

3.A new deposit of tephrite was discovered during the geological survey.

在地质勘查中发现了一处新的喷发岩矿床。

4.The geologist collected a sample of tephrite to analyze its mineral composition.

地质学家收集了一个喷发岩样本以分析其矿物成分。

5.The unique properties of tephrite make it an interesting subject for petrological studies.

由于其独特的性质，喷发岩成为岩石学研究的有趣课题。

6.The tephrite found in this area has a high potassium content.

该地区发现的喷发岩含有高钾成分。

7.In volcanic regions, tephrite can often be found as a result of explosive eruptions.

在火山地区，喷发岩常常是爆炸性喷发的结果。

作文

Tephrite is a volcanic rock that is primarily composed of alkali feldspar and plagioclase. It is considered an important member of the alkaline igneous rock family, which includes various other types of rocks like basalt and phonolite. Understanding tephrite can provide insights into volcanic processes and the composition of the Earth’s crust. In this essay, I will explore the characteristics, formation, and significance of tephrite (喷发岩), highlighting its role in geology and its implications for understanding volcanic activity.Tephrite typically appears in shades of gray to black, depending on its mineral content. The texture of tephrite (喷发岩) can vary from fine-grained to coarse-grained, often influenced by the cooling rate of the lava from which it formed. When lava cools rapidly, it tends to produce fine-grained rocks, while slower cooling allows for larger crystals to develop. This variation in texture is crucial for geologists who study volcanic eruptions and the conditions under which different types of rocks form.The formation of tephrite (喷发岩) occurs primarily in volcanic environments where alkaline magmas are present. These magmas are rich in sodium and potassium, which contribute to the unique chemical composition of the rock. Tephrite is often associated with explosive volcanic eruptions, which can lead to the formation of pyroclastic flows and volcanic ash deposits. Studying these eruptions provides valuable information about the behavior of volcanoes and helps scientists predict future volcanic activity.One of the significant aspects of tephrite (喷发岩) is its role as an indicator of the geological history of an area. By analyzing the presence of tephrite (喷发岩) in sedimentary layers, geologists can infer past volcanic activity and the types of eruptions that occurred. This information is crucial for understanding the evolution of the Earth’s crust and the processes that shape our planet.Moreover, tephrite (喷发岩) can also have economic importance. Some varieties of this rock contain valuable minerals that can be extracted for industrial use. For example, the presence of certain rare earth elements in tephrite (喷发岩) can make it a target for mining operations. As demand for these materials increases, understanding the distribution and characteristics of tephrite (喷发岩) becomes increasingly important.In conclusion, tephrite (喷发岩) is a fascinating volcanic rock that offers a wealth of information about geological processes and volcanic activity. Its unique composition and formation conditions make it a valuable subject of study for geologists and volcanologists alike. By examining tephrite (喷发岩), we can gain insights into the history of our planet and the dynamic processes that continue to shape it today. Whether it is through understanding past eruptions or exploring its economic potential, tephrite (喷发岩) remains a significant topic within the field of geology.

喷发岩是一种火山岩，主要由碱性长石和斜长石组成。它被认为是碱性火成岩家族中的重要成员，其中包括其他各种类型的岩石，如玄武岩和音石。理解喷发岩可以提供对火山过程和地壳组成的深入见解。在这篇文章中，我将探讨tephrite（喷发岩）的特征、形成及其重要性，强调它在地质学中的作用以及对理解火山活动的影响。喷发岩通常呈现灰色到黑色，具体取决于其矿物含量。tephrite（喷发岩）的纹理可以从细粒到粗粒变化，通常受其形成的熔岩冷却速率的影响。当熔岩迅速冷却时，往往会产生细粒岩，而较慢的冷却则允许更大的晶体形成。这种纹理的变化对研究火山喷发和不同类型岩石形成条件的地质学家至关重要。tephrite（喷发岩）的形成主要发生在存在碱性岩浆的火山环境中。这些岩浆富含钠和钾，这些元素有助于岩石的独特化学成分。喷发岩通常与爆炸性的火山喷发相关，这可能导致火山碎屑流和火山灰沉积物的形成。研究这些喷发为科学家提供了有关火山行为的重要信息，并有助于预测未来的火山活动。tephrite（喷发岩）的一个重要方面是它作为地区地质历史的指示器的作用。通过分析沉积层中tephrite（喷发岩）的存在，地质学家可以推断出过去的火山活动和发生的喷发类型。这些信息对于理解地壳的演变及塑造我们星球的过程至关重要。此外，tephrite（喷发岩）也可能具有经济重要性。这种岩石的一些变种含有可提取用于工业用途的有价值矿物。例如，tephrite（喷发岩）中某些稀土元素的存在可能使其成为采矿作业的目标。随着对这些材料需求的增加，理解tephrite（喷发岩）的分布和特征变得越来越重要。总之，tephrite（喷发岩）是一种引人入胜的火山岩，提供了丰富的信息，关于地质过程和火山活动。其独特的组成和形成条件使其成为地质学家和火山学家研究的宝贵对象。通过考察tephrite（喷发岩），我们可以深入了解我们星球的历史以及继续塑造它的动态过程。无论是通过理解过去的喷发，还是探索其经济潜力，tephrite（喷发岩）在地质学领域始终是一个重要的主题。