pyroxenite

简明释义

英[paɪˈrɒksɪnaɪt]美[paɪˈrɑːksəˌnaɪt]

n. 辉石岩；[岩] 辉岩

英英释义

单词用法

同义词

反义词

例句

1.The spinels in pyroxenite xenoliths are aluminum spinel with higher Al content and lower Cr content and green in color in thin sections.

辉石岩中尖晶石在薄片下呈绿色，为铝含量高、铬含量低的铝尖晶石；

2.The ultramafic intrusive complex is composed of dunite, peridotite, pyroxenite, gabbro and their metamorphic products.

超镁铁质侵入杂岩体由纯橄岩，橄榄岩，辉石岩，辉长岩及它们的变质产物组成。

3.The host rocks of the garnet pyroxenite are spinel peridotites, including spinel harzburgite and lherzolite.

石榴辉石岩的寄主岩是尖晶石橄榄岩类，包括尖晶石方辉橄榄岩和尖晶石二辉橄榄岩。

4.Abundant pyroxenite xenoliths were found from the Cenozoic Changle basalts, an area distributing near the Tanlu fault zone.

紧邻郯庐断裂带分布的山东昌乐新生代玄武岩含有丰富的辉石岩捕虏体。

5.The main rocks in the complex are gabbro, gabbro-diabase, pyroxenite and olivine-pyroxenite etc.

杂岩体主要岩石类型为：辉长岩、辉长辉绿岩、辉石岩、橄榄辉石岩等。

6.Mineral chemically these pyroxenes are similar to mantle enclaves including peridotite and pyroxenite from China and abroad, and different from ones of granulites.

辉石的化学成分与国内外幔源包体-橄榄岩和辉石岩中的类似 ，与麻粒岩中的明显不同 ；

7.Measurements of elastic wave velocities at different high temperatures and high pressures were made on alkali basalt and xenoliths of pyroxenite and lherzolite from Damaping, Hebei.

对河北大麻坪碱性玄武岩及其内的辉石岩和二辉橄榄岩包体进行了不同温压条件下的弹性波速测定。

8.REE distribution in the first phase intrusive rock descends in an order of pyroxenite to biotite pyroxenite to apatite rock.

第一期侵入岩较其它期次侵入岩ree含量高，按辉石岩—黑云母辉石岩—磷灰石岩的顺序增加。

9.The latter is representive of pyroxenite, which displays the accumulate texture and has higher REE abundance than the Sp-lherzolite from the region.

后者以二辉石岩为代表，具典型堆积结构，与本区尖晶石二辉橄榄岩相比，具有较高的稀土元素丰度。

10.The presence of pyroxenite can indicate high-temperature metamorphic conditions.

存在辉石岩可能表明高温变质条件。

11.The geological survey revealed that the area was rich in pyroxenite.

地质调查显示该地区富含辉石岩。

12.In some regions, pyroxenite is used as a source of magnesium.

在某些地区，辉石岩被用作镁的来源。

13.Researchers are studying the mineral composition of pyroxenite to understand its formation.

研究人员正在研究辉石岩的矿物成分以了解其形成过程。

14.Geologists often find pyroxenite in mountainous regions formed by volcanic activity.

地质学家常常在由火山活动形成的山区发现辉石岩。

作文

In the study of geology, various rock types are classified based on their mineral composition and formation processes. One such intriguing rock type is pyroxenite, which is primarily composed of pyroxene minerals. These minerals are significant in understanding the Earth's mantle and its dynamics. Pyroxenite is often formed through the crystallization of magma or as a result of metamorphic processes involving mafic rocks. The presence of pyroxene gives pyroxenite its characteristic dark color, typically ranging from green to black, depending on the specific types of pyroxene present. The formation of pyroxenite plays an essential role in the geological cycle. It can be found in various tectonic settings, including mid-ocean ridges and subduction zones. In these environments, the high-pressure and high-temperature conditions favor the crystallization of pyroxene over other minerals. This makes pyroxenite an important indicator of the conditions under which it formed. Geologists often study pyroxenite to gain insights into the thermal and compositional evolution of the Earth's mantle.Moreover, pyroxenite is not just a curiosity for geologists; it has practical implications as well. For instance, some deposits of pyroxenite may contain valuable minerals such as chromium or nickel, which are essential for various industrial applications. The extraction of these minerals contributes to the economy and highlights the importance of understanding pyroxenite in both academic and practical contexts.Additionally, the study of pyroxenite can also shed light on the history of volcanic activity in a region. Since pyroxenite can form from the cooling of magma, its presence in an area may indicate past volcanic events. By analyzing the age and distribution of pyroxenite deposits, researchers can reconstruct the volcanic history and assess the potential hazards associated with future eruptions.In conclusion, pyroxenite is a fascinating rock type that provides valuable information about the Earth's interior and geological processes. Its unique composition and formation conditions make it a subject of interest for geologists and mineralogists alike. Understanding pyroxenite not only enhances our knowledge of the Earth's structure but also has significant implications for resource extraction and volcanic risk assessment. As we continue to explore the complexities of our planet, pyroxenite will undoubtedly remain a key focus in the field of geology.

在地质学的研究中，各种岩石类型根据其矿物成分和形成过程进行分类。其中一个引人入胜的岩石类型是辉石岩，它主要由辉石矿物组成。这些矿物在理解地球地幔及其动态方面具有重要意义。辉石岩通常通过岩浆的结晶或作为涉及基性岩石的变质过程的结果形成。辉石的存在赋予了辉石岩其特有的深色，通常呈绿色到黑色，这取决于特定类型的辉石。辉石岩的形成在地质循环中起着至关重要的作用。它可以在各种构造环境中找到，包括中洋脊和俯冲带。在这些环境中，高压和高温条件有利于辉石而非其他矿物的结晶。这使得辉石岩成为形成条件的重要指示物。地质学家经常研究辉石岩以深入了解地球地幔的热和成分演化。此外，辉石岩不仅是地质学家的好奇心；它也具有实际意义。例如，一些辉石岩的矿床可能含有铬或镍等贵重矿物，这些矿物对各种工业应用至关重要。这些矿物的提取有助于经济发展，并突显了理解辉石岩在学术和实际背景中的重要性。此外，辉石岩的研究还可以揭示一个地区火山活动的历史。由于辉石岩可以从岩浆的冷却中形成，因此其在某一地区的存在可能表明过去的火山事件。通过分析辉石岩矿床的年龄和分布，研究人员可以重建火山历史并评估与未来喷发相关的潜在危害。总之，辉石岩是一种迷人的岩石类型，提供了有关地球内部和地质过程的宝贵信息。其独特的成分和形成条件使其成为地质学家和矿物学家感兴趣的研究对象。理解辉石岩不仅增强了我们对地球结构的认识，而且对资源开采和火山风险评估具有重要意义。随着我们继续探索地球的复杂性，辉石岩无疑将继续成为地质学领域的关键关注点。