granulite

简明释义

英[ˈɡrænjʊlaɪt]美[ˈɡrænjəˌlaɪt]

n. [岩] 麻粒岩；粒变岩

英英释义

单词用法

同义词

反义词

例句

1.Archaean granulite belts are just the product of plate-tectonic movement of rigid Archaean crust.

太古宙麻粒岩带就是太古亩地壳发生刚性板块运动的直接产物。

2.Their basement is composed of Archean to early Proterozoic gneisses and crystalline schists metamorphosed at granulite and amphibolite facies.

它们的基底由太古代至元古代早期的粒相和闪石相变质的片麻岩和结晶片岩组成。

3.This study presents the petrological and mineralogical characteristics of granulite xenoliths from Cenozoic basalts in Nushan, Guizishan, Xilong and Qilin, Southeastern China.

本文报道了在中国东南地区女山、桂子山、西垄和麒麟等地新生代玄武岩中新发现的麻粒岩相捕虏体。

4.The parent magma of several rock series formed earliest originated from the lower crust of granulite facies;

最初形成的岩系的母岩浆，起源于麻粒岩相的下地壳。

5.By research of granulite terranes and granulite xenoliths in volcanic rocks, composing and structure of deep substance in the earth could be realized directly.

通过麻粒岩地体以及火山岩中麻粒岩捕掳体的研究，使人们对地球深部的物质组成和结构有了直接的了解。

6.Boron-rich silicate Formation include tourmaline-granulite, biotite-granulite, leptite and some other metamorphic rocks;

富硼硅酸盐岩组是一套电气石变粒岩、黑云变粒岩、浅粒岩等组成的变质岩系；

7.The Weihai Rushan granulite belt is the northwestern marginal zone of the northeastern section of the Subei Jiaonan tectonic melange zone.

威海—乳山麻粒岩带是苏北—胶南构造混杂岩带北东段的北西边缘带。

8.The geological survey revealed that the area was predominantly composed of granulite 颗粒岩, indicating high-grade metamorphic conditions.

地质调查显示该地区主要由颗粒岩 颗粒岩组成，表明高等级变质条件。

9.Researchers found unique mineral compositions in the granulite 颗粒岩 samples collected from the mountain range.

研究人员在从山脉采集的颗粒岩 颗粒岩样本中发现了独特的矿物成分。

10.The granulite 颗粒岩 exposed at the cliff face provides valuable insights into the Earth's crust formation.

悬崖表面的颗粒岩 颗粒岩为地壳形成提供了宝贵的见解。

11.In petrology, understanding the texture of granulite 颗粒岩 is essential for interpreting metamorphic processes.

在岩石学中，理解颗粒岩 颗粒岩的纹理对于解释变质过程至关重要。

12.The presence of granulite 颗粒岩 in the region suggests a history of intense tectonic activity.

该地区存在颗粒岩 颗粒岩暗示着强烈构造活动的历史。

作文

Granulite is a high-grade metamorphic rock that forms under conditions of high temperature and pressure. This type of rock is characterized by its granular texture, which results from the recrystallization of minerals during metamorphism. Understanding granulite (粒岩) is essential for geologists as it provides insights into the geological history and processes that shape the Earth's crust. The formation of granulite typically occurs in tectonically active regions where continental collisions take place, leading to significant increases in temperature and pressure. As rocks undergo metamorphism, their mineral composition changes, often resulting in the formation of new minerals such as garnet, feldspar, and quartz. These minerals contribute to the distinctive appearance of granulite and can vary widely depending on the original rock type and the specific conditions of metamorphism. The study of granulite is not only important for understanding the processes that lead to its formation but also for interpreting the broader geological history of an area. For instance, regions with abundant granulite deposits often indicate past tectonic activity, which can help scientists reconstruct the movements of the Earth’s plates over millions of years. Additionally, granulite can provide valuable information about the thermal evolution of the crust, as its formation is associated with high-temperature environments. In many cases, granulite is found in association with other metamorphic rocks, such as gneiss and schist. These rocks often share similar formation conditions but differ in their mineral content and texture. By studying these relationships, geologists can gain a more comprehensive understanding of the metamorphic processes at play. Furthermore, the presence of granulite can indicate the potential for economically valuable mineral deposits, as some of the minerals found within granulite are sought after for various industrial applications. The examination of granulite also plays a crucial role in the field of petrology, where scientists analyze the chemical and physical properties of rocks to understand their origins and transformations. Through techniques such as thin section analysis and electron microprobe studies, researchers can identify the specific minerals present in granulite and determine their relative abundances. This information helps to elucidate the conditions under which the rock formed and can lead to further discoveries about the geological processes that shaped the region. In conclusion, granulite (粒岩) is a significant rock type in the study of geology and metamorphic processes. Its unique characteristics and formation conditions provide valuable insights into the history of the Earth's crust and the dynamic processes that continue to shape our planet. By studying granulite, geologists can better understand the complex interactions between tectonic forces, temperature, and pressure, ultimately contributing to our knowledge of the Earth's geological history.