compound foreset bedding

简明释义

1. 复成前积层理; 2. 复式前积层理;

英英释义

例句

1.Understanding compound foreset bedding is crucial for predicting the location of natural resources.

理解复合前倾层理对于预测自然资源的位置至关重要。

2.The geologist explained that the layers of sediment were formed through a process known as compound foreset bedding.

地质学家解释说，这些沉积层是通过一种称为复合前倾层理的过程形成的。

3.In the study of sedimentary rocks, compound foreset bedding can indicate changes in the flow direction of ancient rivers.

在沉积岩的研究中，复合前倾层理可以指示古代河流流向的变化。

4.During the field trip, we observed compound foreset bedding in the cliffs, showcasing the area's geological history.

在实地考察中，我们在悬崖上观察到了复合前倾层理，展示了该地区的地质历史。

5.The presence of compound foreset bedding in the core sample suggested a high-energy depositional environment.

岩心样本中存在复合前倾层理表明了一个高能沉积环境。

作文

In the study of sedimentary geology, the term compound foreset bedding refers to a specific type of sedimentary structure that is formed by the accumulation of sediments at an angle. This phenomenon is often observed in environments such as river deltas and coastal areas where sediment is deposited by flowing water. The compound foreset bedding consists of multiple layers of sediment that are inclined, indicating the direction of sediment transport and deposition. Understanding this structure is crucial for geologists as it provides insights into past environmental conditions and sedimentary processes.The formation of compound foreset bedding typically occurs in two stages. Initially, sediment is deposited in a horizontal layer. Over time, as more sediment accumulates, the weight of the overlying material causes the lower layers to compact and consolidate. During high-energy events, such as floods or storm surges, additional sediment is rapidly deposited on top of these layers, creating a steeper slope. This results in the characteristic inclined layers of compound foreset bedding that geologists study.One of the most important aspects of compound foreset bedding is its ability to record changes in sedimentary environments. For instance, variations in the angle of inclination can indicate shifts in energy levels or changes in sediment supply. By analyzing these features, scientists can reconstruct historical landscapes and understand how they have evolved over time.Moreover, compound foreset bedding can also provide valuable information about the paleoenvironment. The types of sediments found within these structures can reveal much about the conditions under which they were deposited. For example, fine-grained sediments might suggest a low-energy environment, while coarser materials could indicate high-energy conditions. This information is vital for reconstructing ancient ecosystems and understanding the climatic conditions that prevailed during different geological periods.In practical applications, the study of compound foreset bedding is not limited to academic research. It has significant implications in fields such as petroleum geology and civil engineering. For instance, understanding sedimentary structures can help in locating oil and gas reserves, as well as in assessing the stability of soil for construction projects. Engineers and geologists need to be aware of these features to make informed decisions regarding land use and resource extraction.In conclusion, compound foreset bedding is a key concept in sedimentary geology that helps scientists understand the processes of sedimentation and the history of the Earth’s surface. By studying these structures, researchers can gain insights into past environments, reconstruct ancient landscapes, and apply this knowledge to modern challenges in resource management and engineering. The significance of compound foreset bedding extends beyond mere academic interest; it plays a crucial role in our understanding of Earth’s dynamic systems and their implications for the future.

在沉积地质学研究中，术语复合前倾层理指的是一种特定的沉积结构，形成于以一定角度堆积的沉积物。这种现象通常出现在河口三角洲和沿海地区等环境中，在这些地方，沉积物是通过流动的水沉积而成。复合前倾层理由多个倾斜的沉积层组成，表明沉积物的运输和沉积方向。理解这一结构对地质学家至关重要，因为它提供了对过去环境条件和沉积过程的深入见解。复合前倾层理的形成通常分为两个阶段。最初，沉积物以水平层的形式沉积。随着时间的推移，随着更多沉积物的积累，上层材料的重量导致下层压实并巩固。在高能事件（如洪水或风暴潮）期间，额外的沉积物迅速沉积在这些层上，形成更陡的坡度。这就导致了地质学家研究的特征性倾斜层<复合前倾层理。复合前倾层理的一个重要方面是其记录沉积环境变化的能力。例如，倾斜角度的变化可以指示能量水平的变化或沉积物供应的变化。通过分析这些特征，科学家可以重建历史景观，并了解它们如何随时间演变。此外，复合前倾层理还可以提供有关古环境的宝贵信息。这些结构中发现的沉积物类型可以揭示它们沉积时的条件。例如，细颗粒沉积物可能表明低能量环境，而较粗的材料则可能指示高能量条件。这些信息对于重建古生态系统和理解不同地质时期盛行的气候条件至关重要。在实际应用中，复合前倾层理的研究并不限于学术研究。它在石油地质学和土木工程等领域具有重要意义。例如，了解沉积结构可以帮助定位油气储藏，以及评估建筑项目的土壤稳定性。工程师和地质学家需要了解这些特征，以便在土地利用和资源开采方面做出明智的决策。总之，复合前倾层理是沉积地质学中的一个关键概念，帮助科学家理解沉积和地球表面历史的过程。通过研究这些结构，研究人员可以深入了解过去的环境，重建古代景观，并将这些知识应用于现代资源管理和工程挑战中。复合前倾层理的重要性超越了单纯的学术兴趣；它在我们理解地球动态系统及其对未来的影响方面发挥着至关重要的作用。