nephelinite

简明释义

英[ˈnef(ə)lɪnaɪt]美[ˈnefəlɪnˌaɪt]

n. 霞岩

英英释义

单词用法

同义词

反义词

例句

1.According to the main rock-forming minerals in them, the Cenozoic volcanic rocks are mainly alkali olivine basalt, basanite and nephelinite.

郯庐断裂带中段的新生代火山岩以碱性系列的碱性橄榄玄武岩、碧玄岩和霞石岩为主，其中又以钠质亚系的岩石为主。

2.According to the main rock-forming minerals in them, the Cenozoic volcanic rocks are mainly alkali olivine basalt, basanite and nephelinite.

郯庐断裂带中段的新生代火山岩以碱性系列的碱性橄榄玄武岩、碧玄岩和霞石岩为主，其中又以钠质亚系的岩石为主。

3.The unique mineral composition of nephelinite makes it an interesting subject for petrological studies.

由于辉石岩独特的矿物成分，使其成为岩石学研究的有趣主题。

4.The rock formation in this area is primarily composed of nephelinite, which is a rare volcanic rock.

该地区的岩石构造主要由辉石岩组成，这是一种稀有的火山岩。

5.Geologists often study nephelinite to understand the processes of magma evolution.

地质学家经常研究辉石岩以了解岩浆演化的过程。

6.During our field trip, we collected samples of nephelinite from the volcanic site.

在我们的实地考察中，我们从火山遗址收集了辉石岩样本。

7.In some regions, nephelinite is used as a decorative stone due to its unusual colors.

在某些地区，由于其独特的颜色，辉石岩被用作装饰石材。

作文

Nephelinite is a fascinating volcanic rock that primarily consists of nepheline, a mineral that is rich in sodium and potassium. This unique rock type is formed during the cooling of magma that is low in silica content. The presence of nepheline gives nephelinite its distinctive properties, setting it apart from other igneous rocks. Understanding nephelinite is crucial for geologists and volcanologists as it provides insights into the processes that occur beneath the Earth's surface.One of the most interesting aspects of nephelinite is its formation process. When magma rises to the surface, it can undergo various changes due to pressure and temperature differences. In environments where the magma is rich in alkali elements but low in silica, nephelinite can form. This makes it an important indicator of specific geological conditions. For instance, the presence of nephelinite can suggest that the area has experienced significant volcanic activity in the past.The appearance of nephelinite is also noteworthy. It typically has a dark color, often ranging from greenish to black, and may exhibit a glassy texture. These visual characteristics make nephelinite quite distinct when compared to other volcanic rocks like basalt or pumice. Geologists often study these rocks not only for their mineral composition but also for their textural features, which can provide valuable information about the cooling history of the magma.In addition to its geological significance, nephelinite has practical applications. Due to its unique mineralogy, it can be used in the production of certain types of glass and ceramics. The presence of nepheline in nephelinite can enhance the properties of these materials, making them more durable and heat-resistant. As industries seek to innovate and improve material performance, understanding the characteristics of nephelinite becomes increasingly important.Moreover, studying nephelinite contributes to our understanding of the Earth’s evolution. By examining the distribution of nephelinite deposits around the world, scientists can gain insights into tectonic movements and the history of volcanic activity. This knowledge can help predict future volcanic eruptions and assess potential hazards, making it a vital area of research in geology.In conclusion, nephelinite is more than just a rock; it is a key to understanding volcanic processes and the geological history of our planet. Its unique composition and properties make it an essential subject of study for both academic researchers and industry professionals. As we continue to explore the Earth’s crust, the importance of nephelinite will undoubtedly grow, offering new opportunities for discovery and innovation in various fields. Whether in the lab or in the field, the study of nephelinite remains a captivating and essential pursuit for those passionate about geology and earth sciences.

“Nephelinite”是一种迷人的火山岩，主要由富含钠和钾的矿物——方钠石组成。这种独特的岩石类型是在低硅含量的岩浆冷却过程中形成的。方钠石的存在赋予了nephelinite其独特的性质，使其与其他火成岩区分开来。理解nephelinite对地质学家和火山学家至关重要，因为它提供了关于地球表面下发生的过程的见解。nephelinite最有趣的方面之一是其形成过程。当岩浆上升到表面时，由于压力和温度的变化，它可能会经历各种变化。在岩浆富含碱元素但低硅的环境中，可以形成nephelinite。这使得它成为特定地质条件的重要指标。例如，nephelinite的存在可以表明该地区在过去经历过显著的火山活动。nephelinite的外观也值得注意。它通常呈暗色，颜色范围从绿色到黑色不等，并且可能表现出玻璃质的纹理。这些视觉特征使得nephelinite在与其他火山岩如玄武岩或浮石相比时相当独特。地质学家通常不仅研究这些岩石的矿物组成，还研究它们的纹理特征，这可以提供有关岩浆冷却历史的宝贵信息。除了其地质意义外，nephelinite还有实际应用。由于其独特的矿物学，它可以用于某些类型的玻璃和陶瓷的生产。nephelinite中方钠石的存在可以增强这些材料的性能，使其更耐用和耐热。随着各行业寻求创新和改善材料性能，理解nephelinite的特性变得越来越重要。此外，研究nephelinite有助于我们理解地球的演变。通过检查世界各地nephelinite沉积物的分布，科学家可以获得关于构造运动和火山活动历史的见解。这些知识可以帮助预测未来的火山喷发并评估潜在的危险，使其成为地质学研究中的一个重要领域。总之，nephelinite不仅仅是一种岩石；它是理解火山过程和我们星球地质历史的关键。其独特的成分和性质使其成为学术研究和行业专业人士的重要研究对象。随着我们继续探索地球的地壳，nephelinite的重要性无疑会增长，为各个领域的发现和创新提供新的机遇。无论是在实验室还是在野外，研究nephelinite仍然是那些热爱地质学和地球科学的人的迷人且必要的追求。