compound gneiss

简明释义

混合片麻岩;

英英释义

例句

1.The geological survey revealed that the area was primarily composed of compound gneiss (复合片麻岩), indicating a complex metamorphic history.

地质调查显示该地区主要由compound gneiss（复合片麻岩）组成，表明其复杂的变质历史。

2.In architecture, compound gneiss (复合片麻岩) is sometimes used for decorative stonework due to its aesthetic appeal.

在建筑中，compound gneiss（复合片麻岩）有时因其美观而被用作装饰石材。

3.Researchers found that the compound gneiss (复合片麻岩) in this region contained unique mineral formations.

研究人员发现该地区的compound gneiss（复合片麻岩）中含有独特的矿物形成。

4.During the field trip, we collected samples of compound gneiss (复合片麻岩) to analyze its composition.

在实地考察中，我们收集了compound gneiss（复合片麻岩）样本以分析其成分。

5.The compound gneiss (复合片麻岩) exhibits banding patterns that are characteristic of high-grade metamorphism.

该compound gneiss（复合片麻岩）表现出典型的高等级变质作用的条带状图案。

作文

The study of geology often reveals fascinating insights into the Earth's structure and history. One such intriguing rock type is compound gneiss, which plays a significant role in understanding metamorphic processes. Gneiss itself is a high-grade metamorphic rock, characterized by its banded appearance due to the segregation of mineral grains. The term compound gneiss refers specifically to a type of gneiss that is composed of two or more distinct layers or bands of different mineral compositions. This layering can provide valuable information about the conditions under which the rock formed, including temperature, pressure, and the presence of fluids during metamorphism.Metamorphism occurs when pre-existing rocks, known as protoliths, undergo changes due to extreme heat and pressure within the Earth's crust. When a protolith is subjected to these conditions, its minerals can recrystallize, leading to the formation of new minerals and textures. The process can be quite complex, especially in areas where tectonic forces are at play. In such regions, the formation of compound gneiss can indicate a history of multiple phases of metamorphism, where different layers may have formed under varying conditions.Geologists often study compound gneiss to gain insights into the geological history of a region. For instance, the presence of specific mineral assemblages within the gneiss can help scientists determine the original rock type and the metamorphic conditions it experienced. Additionally, the orientation and thickness of the bands within compound gneiss can reveal information about the tectonic forces that shaped the area over millions of years. This information is crucial for understanding the evolution of mountain ranges and other geological features.Moreover, compound gneiss is not only of academic interest; it also has practical applications. Due to its durability and aesthetic appeal, it is often used as a building material and in landscaping. The unique patterns created by the banding in compound gneiss can enhance the visual appeal of structures and outdoor spaces. However, the extraction and use of this rock must be balanced with environmental considerations, as quarrying can have significant impacts on local ecosystems.In conclusion, compound gneiss serves as a key indicator of the complex geological processes that shape our planet. By studying this rock type, geologists can unravel the intricate history of metamorphism and tectonics in a given area. Furthermore, the practical uses of compound gneiss in construction highlight the intersection between geology and human activity. As we continue to explore and understand the Earth’s materials, compound gneiss will undoubtedly remain a topic of interest for both scientists and the general public alike.

地质学的研究常常揭示出地球结构和历史的迷人见解。其中一种引人入胜的岩石类型是复合片麻岩，它在理解变质过程方面发挥着重要作用。片麻岩本身是一种高等级变质岩，因矿物颗粒的分离而呈现带状外观。术语复合片麻岩特指由两层或多层不同矿物组成的片麻岩。这种分层可以提供有关岩石形成条件的宝贵信息，包括变质过程中的温度、压力和流体的存在。变质作用发生在已有的岩石（称为母岩）因极端的热和压力而经历变化时。当母岩受到这些条件的影响时，其矿物可能会重新结晶，导致新矿物和纹理的形成。这个过程可能相当复杂，特别是在构造力起作用的区域。在这样的地区，复合片麻岩的形成可以表明多相变质作用的历史，其中不同的层可能是在不同条件下形成的。地质学家常常研究复合片麻岩以深入了解一个地区的地质历史。例如，片麻岩中某些特定矿物组合的存在可以帮助科学家确定原始岩石类型及其经历的变质条件。此外，复合片麻岩中带的方向和厚度可以揭示塑造该地区数百万年来的构造力的信息。这些信息对于理解山脉和其他地质特征的演变至关重要。此外，复合片麻岩不仅具有学术意义；它还具有实际应用。由于其耐用性和美学吸引力，通常被用作建筑材料和园林绿化。复合片麻岩中带状图案的独特性可以增强建筑物和户外空间的视觉吸引力。然而，开采和使用这种岩石必须与环境考虑相平衡，因为采石可能对当地生态系统产生重大影响。总之，复合片麻岩作为塑造我们星球的复杂地质过程的关键指标。通过研究这种岩石类型，地质学家可以揭示给定区域的变质和构造的复杂历史。此外，复合片麻岩在建筑中的实际用途突显了地质学与人类活动之间的交集。随着我们继续探索和理解地球的材料，复合片麻岩无疑将继续成为科学家和公众关注的话题。