basal conglomerate

简明释义

底砾岩;

英英释义

例句

1.During the field trip, we collected samples from the basal conglomerate to study its composition.

在实地考察中，我们从基底砾岩中采集样本以研究其成分。

2.In sedimentary rock formations, the basal conglomerate often serves as a key marker.

在沉积岩层中，基底砾岩通常作为一个重要的标记。

3.The geologist identified the layer of basal conglomerate as the foundational rock in this area.

地质学家将这一地区的基础岩石识别为基底砾岩。

4.The basal conglomerate is typically composed of larger clasts cemented together.

通常，基底砾岩由较大的碎石颗粒胶结而成。

5.The presence of a basal conglomerate can indicate past river activity.

存在基底砾岩可能表明过去的河流活动。

作文

The study of geology provides us with a fascinating insight into the Earth's history and its formation. One of the intriguing concepts in this field is the term basal conglomerate, which refers to a type of sedimentary rock that is characterized by its composition of larger clasts or fragments that are cemented together by finer materials. Understanding basal conglomerate is essential for geologists as it helps them interpret past environments and geological processes.To elaborate, a basal conglomerate usually forms at the base of a sedimentary sequence and is often indicative of high-energy depositional environments, such as river channels or alluvial fans. The presence of larger pebbles and boulders within the rock suggests that the area experienced strong currents capable of transporting these heavy materials. In contrast, finer sediments found in the matrix of the basal conglomerate indicate a subsequent decrease in energy, allowing smaller particles to settle and bind the larger fragments together.Geologists often encounter basal conglomerate in various locations around the world, making it a significant component in the study of stratigraphy and sedimentology. For instance, regions with mountainous terrains may reveal outcrops of basal conglomerate formed from eroded materials transported down slopes. These formations not only provide evidence of past geological events but also play a crucial role in understanding the tectonic history of an area.In addition to its geological significance, basal conglomerate can also be of interest to those in the field of natural resources. The larger clasts found within these rocks may contain valuable minerals or fossils, which can be crucial for economic and scientific purposes. Furthermore, studying the characteristics of basal conglomerate can inform us about the paleoenvironment, including climate conditions and ecological systems that existed during the time of its formation.In conclusion, the term basal conglomerate encapsulates a vital aspect of sedimentary geology. By examining these formations, geologists can unlock secrets about the Earth's past, its dynamic processes, and the environments that shaped our planet. Whether through the study of fossilized remains or the analysis of mineral content, basal conglomerate serves as a key to understanding the intricate history of our world. As we continue to explore and learn more about geological formations, the importance of terms like basal conglomerate will only become more pronounced, guiding future research and discoveries in the field of geology.

地质学的研究为我们提供了对地球历史及其形成的迷人洞察。其中一个引人入胜的概念是术语基底砾岩，它指的是一种沉积岩，其特征在于由较大碎块或碎片组成，这些碎块被细小材料胶结在一起。理解基底砾岩对地质学家至关重要，因为它帮助他们解读过去的环境和地质过程。更具体地说，基底砾岩通常形成于沉积序列的底部，通常表明高能沉积环境，例如河道或冲积扇。岩石中较大卵石和巨石的存在表明，该地区经历了能够运输这些重材料的强水流。相比之下，基底砾岩基质中的细小沉积物则表明能量的随之降低，使得较小的颗粒沉降并将较大碎片结合在一起。地质学家在世界各地经常遇到基底砾岩，这使其成为研究地层学和沉积学的重要组成部分。例如，具有山地地形的地区可能会揭示由侵蚀材料运输而成的基底砾岩出露。这些地层不仅提供了过去地质事件的证据，还在理解一个地区的构造历史中发挥着关键作用。除了其地质意义外，基底砾岩对自然资源领域的人士也具有兴趣。这些岩石中发现的大块碎石可能包含有价值的矿物或化石，这对于经济和科学目的至关重要。此外，研究基底砾岩的特征可以告知我们关于古环境的信息，包括其形成时期存在的气候条件和生态系统。总之，术语基底砾岩概括了沉积地质学的重要方面。通过检查这些地层，地质学家可以揭示有关地球过去、其动态过程以及塑造我们星球的环境的秘密。无论是通过对化石遗骸的研究还是对矿物成分的分析，基底砾岩都是理解我们世界复杂历史的钥匙。随着我们继续探索并了解更多关于地质形成的信息，像基底砾岩这样的术语的重要性只会愈加突出，指导未来在地质学领域的研究和发现。