angular unconformity

简明释义

1. 角度不整合; 2. 截合;

英英释义

例句

1.Studying the angular unconformity helps us understand the geological history of the area.

研究角度不整合有助于我们理解该地区的地质历史。

2.The formation of an angular unconformity suggests that tectonic forces have played a role in shaping the landscape.

一个角度不整合的形成表明构造力量在塑造地貌方面发挥了作用。

3.At the cliffside, the angular unconformity was clearly visible, showcasing the different angles of the sedimentary rocks.

在悬崖边，角度不整合清晰可见，展示了沉积岩的不同角度。

4.During our field trip, we observed an angular unconformity that dated back millions of years.

在我们的实地考察中，我们观察到一个可以追溯到数百万年前的角度不整合。

5.The geologist pointed out the angular unconformity in the rock layers, which indicated a significant period of erosion.

地质学家指出了岩层中的角度不整合，这表明经历了一个显著的侵蚀时期。

作文

In the study of geology, understanding the various types of rock formations and their relationships is crucial. One fascinating concept in this field is angular unconformity, which refers to a geological feature that represents a significant gap in the geological record. This occurs when younger sedimentary rocks are deposited on top of older, tilted, or folded layers. The result is a striking visual contrast between the two sets of rock layers, and this feature provides valuable insights into the Earth's geological history.To grasp the significance of angular unconformity, one must first understand how sedimentary layers are formed. Sedimentary rocks are created through the accumulation of sediments, which can come from various sources, such as erosion, volcanic activity, or biological processes. Over time, these sediments are compacted and cemented together, forming distinct layers. However, geological processes such as tectonic movements can disrupt this layering, leading to tilting or folding of the older rocks.After a period of erosion, where the tilted layers are worn down, new sediments can begin to accumulate again, but this time on top of the older, disrupted layers. This creates the angular unconformity, where the angle of the younger layers is noticeably different from that of the older ones. The presence of this feature indicates that there was a significant period during which no new sediments were deposited, and the existing layers underwent erosion before the new layers began to form.The study of angular unconformity is not only important for understanding the geological history of an area but also for practical applications such as natural resource exploration. For instance, oil and gas reservoirs often form in sedimentary basins where unconformities exist. By studying these geological features, geologists can identify potential locations for drilling and extraction.Moreover, angular unconformity serves as a reminder of the dynamic nature of our planet. It illustrates how landscapes can change dramatically over millions of years due to natural forces. This understanding can help us appreciate the complexities of Earth’s history and the processes that shape it.In conclusion, the concept of angular unconformity is a vital aspect of geology that provides insights into the Earth's past. By studying these features, we can learn about the processes that have shaped our planet and apply this knowledge to various fields, including natural resource management. Understanding angular unconformity not only enriches our knowledge of geology but also deepens our appreciation for the intricate history of the Earth itself.

在地质学的研究中，理解各种岩石形成及其关系至关重要。一个引人入胜的概念是角度不整合，它指的是一种地质特征，代表了地质记录中的一个重要间隙。这种现象发生在年轻的沉积岩层被沉积在较老的、倾斜或褶皱的层之上时。结果是两组岩石层之间形成了显著的视觉对比，这一特征提供了对地球地质历史的宝贵见解。要理解角度不整合的重要性，首先必须了解沉积层是如何形成的。沉积岩是通过沉积物的积累而形成的，这些沉积物可以来自多种来源，如侵蚀、火山活动或生物过程。随着时间的推移，这些沉积物被压实并胶结在一起，形成明显的层。然而，地质过程如构造运动可能会扰乱这种分层，导致较老的岩石倾斜或褶皱。在经历了一段侵蚀期后，倾斜的层被磨损，新的沉积物可以再次开始积累，但这次是在较老的、破坏的层之上。这就形成了角度不整合，其中年轻层的角度明显不同于较老的层。这个特征的存在表明，在这一过程中没有沉积新材料，现有层经历了侵蚀，然后新的层开始形成。对角度不整合的研究不仅对理解一个地区的地质历史重要，而且对实际应用如自然资源勘探也至关重要。例如，石油和天然气储藏通常形成在存在不整合的沉积盆地中。通过研究这些地质特征，地质学家可以识别潜在的钻探和开采位置。此外，角度不整合提醒我们地球的动态性质。它展示了由于自然力量，景观在数百万年内可以发生剧烈变化。这种理解可以帮助我们欣赏地球历史的复杂性及其塑造过程。总之，角度不整合的概念是地质学的一个重要方面，为我们提供了对地球过去的洞察。通过研究这些特征，我们可以了解塑造我们星球的过程，并将这些知识应用于各个领域，包括自然资源管理。理解角度不整合不仅丰富了我们对地质学的知识，还加深了我们对地球复杂历史的欣赏。