calcareous sandstone

简明释义

1. 钙质砂岩; 2. 灰质砂岩;

英英释义

例句

1.The presence of calcareous sandstone (钙质砂岩) in the area suggests that it was once underwater.

该地区存在calcareous sandstone（钙质砂岩）表明这里曾经在水下。

2.The architecture of the ancient ruins prominently features calcareous sandstone (钙质砂岩) as a primary building material.

古代遗址的建筑中显著使用了calcareous sandstone（钙质砂岩）作为主要建筑材料。

3.In the quarry, workers extracted blocks of calcareous sandstone (钙质砂岩) for use in landscaping.

在采石场，工人们提取了用于园林绿化的calcareous sandstone（钙质砂岩）块。

4.Geologists often study calcareous sandstone (钙质砂岩) to understand the sedimentary processes of ancient marine environments.

地质学家经常研究calcareous sandstone（钙质砂岩），以了解古代海洋环境的沉积过程。

5.The construction of the new building was delayed due to the discovery of large deposits of calcareous sandstone (钙质砂岩) in the foundation area.

由于在基础区域发现了大量的calcareous sandstone（钙质砂岩），新建筑的施工被延迟。

作文

In the study of geology, various types of rocks play a crucial role in understanding the Earth's history and its processes. One such rock type is calcareous sandstone, which is a sedimentary rock composed primarily of sand-sized particles and significant amounts of calcium carbonate. This unique composition gives calcareous sandstone its distinctive properties, making it an important subject of study for geologists and paleontologists alike. The formation of calcareous sandstone typically occurs in marine environments where sand is deposited along with calcium carbonate from biological sources, such as shells and coral. Over time, these sediments are compacted and cemented together, resulting in a rock that not only retains the characteristics of sandstone but also incorporates the biochemical components that contribute to its calcareous nature. One of the most fascinating aspects of calcareous sandstone is its ability to preserve fossils. The calcium carbonate content provides an ideal medium for the fossilization process, allowing for the preservation of delicate structures that might otherwise be lost in other types of sedimentary rocks. This makes calcareous sandstone a valuable resource for scientists studying ancient ecosystems and the evolution of life on Earth. Furthermore, calcareous sandstone is often found in regions that were once underwater, indicating past geological events such as transgressions and regressions of sea levels. By analyzing the layers of calcareous sandstone and the fossils contained within, geologists can reconstruct the environmental conditions of the time, providing insights into climate changes and geological processes. In terms of practical applications, calcareous sandstone is used in construction and landscaping due to its durability and aesthetic appeal. Its natural colors and textures make it a popular choice for building materials, while its ability to withstand weathering makes it suitable for outdoor use. Additionally, the presence of calcium carbonate in calcareous sandstone can contribute to soil fertility when the rock weathers, releasing essential nutrients into the soil. However, the extraction and use of calcareous sandstone must be managed carefully to minimize environmental impact. Quarrying activities can lead to habitat destruction and changes in local ecosystems. Therefore, sustainable practices should be implemented to ensure that the benefits of using calcareous sandstone do not come at the expense of ecological health. In conclusion, calcareous sandstone is more than just a rock; it is a window into the past, a resource for the present, and a reminder of the delicate balance between human activity and nature. Understanding its formation, properties, and implications is essential for both scientific inquiry and responsible resource management. As we continue to explore the Earth’s geological features, calcareous sandstone will undoubtedly remain a significant focus of study, revealing the secrets of our planet's history and guiding us toward a more sustainable future.

在地质学的研究中，各种类型的岩石在理解地球的历史和过程方面起着至关重要的作用。其中一种岩石类型是钙质砂岩，它是一种沉积岩，主要由沙粒和大量碳酸钙组成。这种独特的成分赋予了钙质砂岩其独特的特性，使其成为地质学家和古生物学家研究的重要对象。钙质砂岩的形成通常发生在海洋环境中，沙子与来自生物源（如贝壳和珊瑚）的碳酸钙一起沉积。随着时间的推移，这些沉积物被压实并胶结在一起，形成了一种不仅保留砂岩特征且融入生物化学成分的岩石，赋予其钙质特性。钙质砂岩最引人注目的方面之一是它能够保存化石。碳酸钙的含量提供了理想的化石化介质，使得脆弱结构的保存成为可能，而这些结构在其他类型的沉积岩中可能会丢失。因此，钙质砂岩成为科学家研究古生态系统和地球生命演化的宝贵资源。此外，钙质砂岩通常出现在曾经被水淹没的地区，指示着过去的地质事件，如海平面的侵入和回退。通过分析钙质砂岩的层次及其内部的化石，地质学家可以重建当时的环境条件，从而提供对气候变化和地质过程的见解。在实际应用方面，钙质砂岩因其耐用性和美观性而被用于建筑和园艺。其自然的颜色和纹理使其成为建筑材料的热门选择，而其抵御风化的能力使其适合户外使用。此外，钙质砂岩中碳酸钙的存在可以在岩石风化时释放出必需的营养物质，从而有助于土壤肥力。然而，提取和使用钙质砂岩必须谨慎管理，以尽量减少对环境的影响。采石活动可能导致栖息地破坏和当地生态系统的变化。因此，应实施可持续实践，以确保利用钙质砂岩的好处不会以生态健康为代价。总之，钙质砂岩不仅仅是一块岩石；它是通往过去的窗口，是当前的资源，也是人类活动与自然之间微妙平衡的提醒。理解其形成、特性及其影响对于科学探究和负责任的资源管理至关重要。随着我们继续探索地球的地质特征，钙质砂岩无疑将仍然是研究的重点，揭示我们星球历史的秘密，并引导我们走向更可持续的未来。