colluvial

简明释义

英[kəˈluːviəl]美[kəˈluviəl]

adj. 塌积的

英英释义

单词用法

同义词

反义词

例句

1.Colluvial deposits at the foot of valley slopes usually affect only narrow strips of valley bottom.

河谷坡脚处的崩积体通常只影响到谷底较窄的地带。

2.The second law can be applied to the prediction of creep failure, such as rockslides, colluvial-deposit landslides and loess landslides as well as clay landslides with locked patches.

第二律适用于斜坡的蠕变破坏分析预测，例如岩滑、堆积层滑坡、黄土滑坡以及含锁固段的黏土滑坡。

3.Clay minerals distribute extensively in various slopes made of sedimentary rock, weathering profiles of igneous rock, metamorphic rock and sedimentary rock and colluvial deposits.

粘土矿物广泛分布于原生沉积岩、三大岩类风化带及第四系松散堆积物构成的斜坡中。

4.On the basis of granulometric analysis of samples from colluvial wedge sediments caused by normal fault, the sedimentary environment is discussed.

通过对崩积楔沉积物进行粒度特征分析，研究崩积楔形成时的沉积条件和环境特征。

5.All results above show that the load-unload response ratio theory is a very effective nonlinear dynamic one in the short and middle-term prediction of colluvial landslides.

证明了加卸载响应比理论是可应用于中、短期预报堆积层滑坡的一种有效方法。

6.The second law can be applied to the prediction of creep failure, such as rockslides, colluvial-deposit landslides and loess landslides as well as clay landslides with locked patches.

第二律适用于斜坡的蠕变破坏分析预测，例如岩滑、堆积层滑坡、黄土滑坡以及含锁固段的黏土滑坡。

7.The geologist explained that the valley was formed by colluvial 冲积的 deposits from the surrounding hills.

地质学家解释说，这个山谷是由周围山丘的冲积的沉积物形成的。

8.The colluvial 冲积的 material at the base of the slope indicates past landslides.

坡底的冲积的物质表明过去发生过滑坡。

9.During the excavation, they discovered layers of colluvial 冲积的 sediment that dated back thousands of years.

在挖掘过程中，他们发现了数千年前的冲积的沉积层。

10.The research focused on how colluvial 冲积的 deposits affect local ecosystems.

研究集中在冲积的沉积物如何影响当地生态系统。

11.Farmers often find rich soil in colluvial 冲积的 areas, making them ideal for agriculture.

农民们常常在冲积的地区发现肥沃的土壤，使这些地区非常适合农业。

作文

In the study of geology and soil science, understanding different types of sediments is crucial. One such type is known as colluvial, which refers to materials that have been transported and deposited by gravity. These sediments typically accumulate at the base of slopes, where they can form a layer of loose, unconsolidated material. The term colluvial derives from the Latin word 'colluvies', meaning 'to wash together'. This process often occurs in hilly or mountainous regions, where weathering and erosion play significant roles in shaping the landscape.The formation of colluvial deposits often begins with the weathering of rocks on steep slopes. As these rocks break down into smaller particles, gravity pulls them downward. This movement can be further enhanced by rainfall, which not only saturates the soil but also adds weight to the loose material. Consequently, when the ground becomes too saturated, landslides or debris flows may occur, leading to the rapid transport of these sediments to lower elevations.One of the most interesting aspects of colluvial deposits is their composition. They can contain a mixture of various materials, including sand, silt, clay, and larger rock fragments. The diversity in particle size is a result of the different geological processes that contribute to their formation. For example, materials from a nearby rocky outcrop may mix with finer particles from eroded soil, creating a heterogeneous mixture that can be rich in nutrients. This makes colluvial deposits particularly valuable for agriculture, as they often provide fertile ground for crops.Moreover, the study of colluvial deposits can offer insights into past environmental conditions. By analyzing the layers of these sediments, scientists can reconstruct historical climate patterns and understand how ecosystems have changed over time. For instance, a thick layer of colluvial material might indicate a period of intense rainfall or increased erosion, while a thin layer could suggest more stable conditions.In addition to their ecological importance, colluvial deposits also pose certain risks. In regions prone to heavy rainfall or seismic activity, these sediments can become unstable and lead to landslides. Such events can have devastating effects on communities, infrastructure, and natural habitats. Therefore, understanding the characteristics and behavior of colluvial materials is essential for land management and disaster preparedness.In conclusion, the term colluvial encompasses a fascinating aspect of geology that highlights the dynamic interplay between gravity, water, and sediment. From their formation and composition to their ecological and geological significance, colluvial deposits are an integral part of our natural world. By studying these sediments, we can gain valuable insights into both current environmental challenges and historical changes in our planet's climate and landscape.

在地质学和土壤科学的研究中，理解不同类型的沉积物至关重要。其中一种类型被称为colluvial，指的是通过重力运输和沉积的材料。这些沉积物通常在斜坡底部积聚，形成一层松散的、未固结的材料。术语colluvial源自拉丁词“colluvies”，意为“洗在一起”。这一过程通常发生在丘陵或山区，在这些地区，风化和侵蚀在塑造地貌方面发挥着重要作用。colluvial沉积物的形成通常始于陡坡上岩石的风化。当这些岩石分解成较小的颗粒时，重力将它们向下拉动。这种运动可以通过降雨进一步增强，降雨不仅使土壤饱和，还增加了松散材料的重量。因此，当土壤变得过于饱和时，可能会发生滑坡或泥石流，导致这些沉积物迅速运输到较低的海拔。colluvial沉积物最有趣的方面之一是它们的组成。它们可以包含多种材料的混合，包括沙子、淤泥、粘土和较大的岩石碎片。颗粒大小的多样性是由于不同地质过程对其形成的贡献。例如，来自附近岩石突起的材料可能与侵蚀土壤中的细颗粒混合，形成一种富含养分的异质混合物。这使得colluvial沉积物对于农业特别有价值，因为它们通常为作物提供肥沃的土壤。此外，研究colluvial沉积物可以提供对过去环境条件的洞见。通过分析这些沉积物的层次，科学家可以重建历史气候模式，并了解生态系统如何随时间变化。例如，一层厚厚的colluvial材料可能表明一段强降雨或侵蚀加剧的时期，而一层薄薄的层则可能暗示更稳定的条件。除了生态重要性外，colluvial沉积物还存在一定的风险。在易受强降雨或地震活动影响的地区，这些沉积物可能变得不稳定并导致滑坡。这类事件可能对社区、基础设施和自然栖息地造成毁灭性影响。因此，了解colluvial材料的特征和行为对于土地管理和灾害准备至关重要。总之，术语colluvial涵盖了地质学中一个引人入胜的方面，突显了重力、水和沉积物之间的动态相互作用。从它们的形成和组成到生态和地质的重要性，colluvial沉积物是我们自然世界不可或缺的一部分。通过研究这些沉积物，我们可以获得对当前环境挑战和我们星球气候及地貌历史变化的宝贵见解。