graywacke

简明释义

英[ˈɡreɪwæk]美[ˈɡreɪˌwæk]

n. 杂砂岩；硬砂岩（等于 greywacke）

英英释义

单词用法

同义词

反义词

例句

1.The sedimentary rocks are graywacke, siltstone, tuff andpellitie, etc.

沉积岩有杂砂岩、粉砂岩、凝灰岩、泥质岩等。

2.The sedimentary rocks are graywacke, siltstone, tuff andpellitie, etc.

沉积岩有杂砂岩、粉砂岩、凝灰岩、泥质岩等。

3.The geological survey revealed that the area was primarily composed of graywacke (灰岩).

地质调查显示该地区主要由graywacke（灰岩）组成。

4.During the field trip, we collected samples of graywacke (灰岩) for analysis.

在实地考察中，我们收集了graywacke（灰岩）的样本以供分析。

5.The graywacke (灰岩) found in this region is known for its coarse texture.

该地区发现的graywacke（灰岩）以其粗糙的质地而闻名。

6.Sedimentary rocks like graywacke (灰岩) can provide insights into past environmental conditions.

像graywacke（灰岩）这样的沉积岩可以提供对过去环境条件的见解。

7.The construction team used graywacke (灰岩) as a durable material for the foundation.

施工队使用graywacke（灰岩）作为基础的耐用材料。

作文

Graywacke is a type of sandstone that is characterized by its dark color and a high content of rock fragments. This sedimentary rock is commonly found in various geological settings, particularly in areas that have experienced significant tectonic activity. The term 'graywacke' originates from the German word 'Grauwacke,' which refers to a gray-colored stone. Understanding the formation and characteristics of graywacke can provide insights into the geological history of an area and the processes that shape our planet. The formation of graywacke typically involves the rapid deposition of sediments in a marine environment, often during periods of tectonic uplift or subsidence. These sediments are usually composed of a mixture of sand-sized particles, clay, and various mineral fragments. The presence of these diverse components contributes to the unique texture and appearance of graywacke. The rock is often poorly sorted, meaning that the grain sizes can vary significantly within a single sample. This lack of uniformity is indicative of the dynamic conditions under which graywacke forms. Geologists study graywacke not only for its physical properties but also for what it can reveal about past environmental conditions. For instance, the composition of graywacke can indicate the source of the sediments, which in turn provides clues about the geological history of the region. By analyzing the mineral content and the size distribution of the grains, scientists can infer whether the sediments were transported over long distances or deposited close to their source. In addition to its geological significance, graywacke has practical applications in construction and landscaping. Its durability and resistance to weathering make it a popular choice for building materials. Furthermore, graywacke can be used as decorative stone in gardens and public spaces, adding aesthetic value to various projects. The study of graywacke is not limited to its physical and chemical properties; it also encompasses its role in the broader context of sedimentary processes. For example, the presence of graywacke in a particular stratigraphic layer can indicate a period of increased tectonic activity, which may have led to the uplift of mountain ranges or the formation of basins. This information is crucial for understanding the geological evolution of an area. In conclusion, graywacke is more than just a type of sandstone; it is a valuable indicator of Earth's geological processes. Its unique characteristics and formation history provide essential insights into the environment in which it was created. Whether used in construction or studied for scientific purposes, graywacke serves as a reminder of the dynamic nature of our planet. By exploring the significance of graywacke, we can appreciate the intricate connections between geology, history, and the natural world around us.

灰岩是一种砂岩，具有深色和高岩石碎片含量的特征。这种沉积岩通常在各种地质环境中发现，尤其是在经历重大构造活动的地区。术语“灰岩”源自德语单词“Grauwacke”，指的是一种灰色的石头。理解灰岩的形成和特征可以提供对一个地区地质历史及塑造我们星球的过程的深入了解。 灰岩的形成通常涉及在海洋环境中快速沉积沉积物，通常发生在构造隆起或下沉期间。这些沉积物通常由沙粒、粘土和各种矿物碎片的混合物组成。不同成分的存在使得灰岩具有独特的纹理和外观。这种岩石通常是分类不良的，意味着在一个样本内颗粒大小可能有显著差异。这种不均匀性表明了灰岩形成时的动态条件。 地质学家研究灰岩不仅是为了其物理特性，还为了它能揭示过去环境条件。例如，灰岩的成分可以指示沉积物的来源，从而提供关于该地区地质历史的线索。通过分析矿物含量和颗粒的大小分布，科学家可以推断这些沉积物是经过长距离运输还是在其源头附近沉积。 除了地质意义外，灰岩在建筑和景观设计中也有实际应用。其耐用性和抗风化能力使其成为建筑材料的热门选择。此外，灰岩可以用作花园和公共空间中的装饰石，为各种项目增添美学价值。 对灰岩的研究不仅限于其物理和化学特性；还包括其在沉积过程更广泛背景中的角色。例如，某一特定地层中灰岩的存在可以指示构造活动增加的时期，这可能导致山脉的隆起或盆地的形成。这些信息对于理解一个地区的地质演变至关重要。 总之，灰岩不仅仅是一种砂岩；它是地球地质过程的宝贵指示器。它独特的特征和形成历史为我们提供了关于其创建环境的重要见解。无论是在建筑中使用还是用于科学研究，灰岩都提醒我们我们星球的动态本质。通过探索灰岩的重要性，我们可以欣赏到地质、历史与我们周围自然世界之间错综复杂的联系。