disconformity

简明释义

英[dɪskənˈfɔːmɪtɪ]美[ˌdɪskənˈfɜːrməti]

n. 不一致；二平行地层

复 数 d i s c o n f o r m i t i e s

英英释义

单词用法

同义词

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例句

1.It rests on erosional disconformity.

它取决于侵蚀的不一致性。

2.In Hunan province, it took place in the period between early-middle stage and late stage of late Cretaceous epoch. Its structural features are angular disconformity or paraconformity.

湖南晚燕山运动发生于晚白垩世中早期与晚白垩世晚期之间，其构造形迹为角度不整合及假整合关系。

3.In Hunan province, it took place in the period between early-middle stage and late stage of late Cretaceous epoch. Its structural features are angular disconformity or paraconformity.

湖南晚燕山运动发生于晚白垩世中早期与晚白垩世晚期之间，其构造形迹为角度不整合及假整合关系。

4.Understanding disconformity is crucial for reconstructing the geological history of an area.

理解不一致性对于重建一个地区的地质历史至关重要。

5.During the field study, the team discovered a disconformity that altered their interpretation of the area's geological timeline.

在实地研究中，团队发现了一处不一致性，这改变了他们对该地区地质时间线的解读。

6.The geologist noted a significant disconformity in the rock layers, indicating a period of erosion between two formations.

地质学家注意到岩石层中存在显著的不一致性，这表明两个地层之间经历了一段侵蚀期。

7.The presence of disconformity in sedimentary rocks often suggests a gap in the geological record.

沉积岩中的不一致性通常表明地质记录中的一个空白。

8.In paleontology, disconformity can provide insights into the environmental changes that occurred over millions of years.

在古生物学中，不一致性可以提供对数百万年来环境变化的见解。

作文

In the field of geology, understanding the various types of rock layers is crucial for interpreting the history of the Earth. One important concept that geologists encounter is disconformity, which refers to a type of unconformity where there is a gap in the geological record between two sets of sedimentary rocks that are parallel to each other. This phenomenon occurs when sediment deposition is interrupted, leading to a period where no new sediments are laid down, and existing layers may be eroded before deposition resumes. The significance of disconformity lies in its ability to reveal the dynamic processes that have shaped our planet over millions of years.When examining a disconformity, geologists look for evidence of erosion or non-deposition that separates different layers of rock. For instance, if a layer of sandstone is found above a layer of limestone, and there is a noticeable lack of sedimentary layers in between, this could indicate a disconformity. The time gap represented by this unconformity can vary widely, sometimes spanning thousands to millions of years. Such gaps in the geological record can provide insights into significant events in Earth's history, such as periods of uplift, erosion, or changes in climate that affected sedimentation rates.Understanding disconformity also plays a critical role in dating geological formations. By analyzing the layers of rock and the characteristics of the fossils contained within them, scientists can establish a timeline of Earth's history. The presence of a disconformity can signal a time when certain species went extinct or when new species emerged, reflecting the ever-changing nature of life on our planet.Moreover, recognizing disconformity is essential for natural resource exploration. Many fossil fuels, minerals, and groundwater resources are found in sedimentary basins. Understanding the stratigraphy and identifying any disconformity can help geologists predict where these resources may be located. For instance, a disconformity might indicate an ancient environment that was conducive to the formation of oil or gas deposits, guiding exploration efforts.In summary, the concept of disconformity is vital in the study of geology as it provides insights into the Earth's past, helps in dating rock formations, and aids in resource exploration. The identification of a disconformity not only tells us about the history of sediment deposition but also about the environmental conditions that existed at that time. As we continue to explore and understand our planet, the study of disconformity will remain a key aspect of geological research, illustrating the complex and often tumultuous history of Earth’s surface.

在地质学领域，理解各种岩层对于解释地球的历史至关重要。地质学家遇到的一个重要概念是不整合面，它指的是一种不整合的类型，在两组平行的沉积岩之间存在地质记录的间隙。这种现象发生在沉积物沉积被中断时，导致没有新沉积物被铺设的时期，并且在沉积恢复之前，现有层可能会被侵蚀。不整合面的重要性在于它能够揭示塑造我们星球数百万年历史的动态过程。当观察不整合面时，地质学家寻找证据，表明不同岩层之间存在侵蚀或未沉积的现象。例如，如果发现一层砂岩位于一层石灰岩之上，并且中间明显缺乏沉积层，这可能表明存在不整合面。这种不整合所代表的时间间隔可以变化很大，有时跨越数千到数百万年。这种地质记录中的间隙可以提供关于地球历史上重大事件的见解，例如影响沉积速率的隆起、侵蚀或气候变化的时期。理解不整合面在地质年代测定中也发挥着关键作用。通过分析岩石层和其中包含的化石特征，科学家可以建立地球历史的时间线。不整合面的存在可能表明某些物种灭绝或新物种出现的时期，反映出我们星球上生命的不断变化。此外，识别不整合面对于自然资源勘探至关重要。许多化石燃料、矿物和地下水资源存在于沉积盆地中。理解地层学并识别任何不整合面可以帮助地质学家预测这些资源可能的位置。例如，不整合面可能表明一个古老的环境，有利于石油或天然气储藏的形成，从而指导勘探工作。总之，不整合面的概念在地质学研究中至关重要，因为它提供了对地球过去的见解，帮助确定岩层的年代，并协助资源勘探。识别不整合面不仅告诉我们沉积物沉积的历史，还告诉我们当时存在的环境条件。随着我们继续探索和理解我们的星球，不整合面的研究将仍然是地质研究的一个关键方面，展示了地球表面复杂而动荡的历史。