rock uncovered at…
简明释义
在…露出水面的礁石
英英释义
A geological formation or outcrop that is exposed due to erosion, excavation, or other natural processes. | 由于侵蚀、挖掘或其他自然过程而暴露出来的地质构造或岩石露头。 |
例句
1.After the storm, a rock uncovered at the beach revealed some fascinating fossils.
暴风雨过后,海滩上暴露出的岩石揭示了一些迷人的化石。
2.The geologist noted the layers of sediment in the rock uncovered at the cliff face.
地质学家注意到在悬崖表面暴露出的岩石中的沉积层。
3.During the hike, we stumbled upon a rock uncovered at the riverbank that had unique markings.
在徒步旅行中,我们偶然发现了一块在河岸上暴露出的岩石,上面有独特的标记。
4.The children played around the rock uncovered at the park, imagining it was a castle.
孩子们在公园里围着暴露出的岩石玩耍,想象它是一座城堡。
5.The archaeologists discovered ancient tools near the rock uncovered at the excavation site.
考古学家在挖掘现场附近发现了古代工具,靠近暴露出的岩石。
作文
In the realm of geology, many phenomena can be observed that reveal the history of our planet. One such phenomenon is the exposure of ancient geological formations, which can often be seen in various locations around the world. For instance, the rock uncovered at Grand Canyon provides invaluable insights into the Earth's past. This majestic canyon, carved by the Colorado River over millions of years, showcases layers of sedimentary rock that tell a story of marine environments, deserts, and volcanic activity. Each layer represents a different epoch, allowing geologists to study the changes that have occurred over time.The rock uncovered at this site is not only significant for its age but also for the fossils it contains. Fossils found within these rocks offer clues about the types of organisms that existed during different geological periods. For example, trilobite fossils found in the Cambrian layers indicate that complex life forms were already thriving in the oceans. As you move up through the layers, the presence of dinosaur bones in the later Mesozoic strata reveals the dominance of reptiles on land.Furthermore, the rock uncovered at the Grand Canyon has also been subject to extensive study due to its unique mineral composition. The different colors of the rocks, ranging from deep reds to vibrant yellows, are a result of various minerals present in the layers. Iron oxide, for instance, gives the rocks their reddish hue, while limestone contributes to lighter shades. This diversity not only makes the canyon visually stunning but also provides geologists with critical information about the environmental conditions that led to the formation of these rocks.Another notable location where rock uncovered at is significant is in the coastal regions where erosion reveals ancient seabeds. As waves crash against cliffs, they gradually wear away the surface, exposing layers of rock that were once buried deep beneath the ocean. These exposed rocks often contain marine fossils, which help scientists understand how sea levels have changed over millions of years.In addition to their scientific value, the rock uncovered at these sites holds cultural significance as well. Many indigenous cultures view these natural formations as sacred, believing they hold the spirits of their ancestors. This connection to the land emphasizes the importance of preserving these geological wonders for future generations.In conclusion, the rock uncovered at various geological sites across the globe serves as a window into the Earth's history. From the ancient layers of the Grand Canyon to the eroded cliffs along coastlines, these rocks tell stories of our planet's evolution. They provide crucial information about past climates, ecosystems, and even the cultural heritage of human civilizations. Therefore, understanding and preserving these natural treasures is essential, as they not only enhance our knowledge of geology but also enrich our appreciation for the beauty and complexity of the Earth.
在地质学领域,可以观察到许多现象,揭示了我们星球的历史。其中一种现象是古老地质构造的暴露,这种现象在世界各地的不同地点都可以看到。例如,在大峡谷暴露出的岩石为了解地球的过去提供了宝贵的见解。这个宏伟的大峡谷是由科罗拉多河经过数百万年的侵蚀而形成的,展示了沉积岩层,讲述了海洋环境、沙漠和火山活动的故事。每一层代表一个不同的时代,使地质学家能够研究随时间发生的变化。在这个地点,暴露出的岩石不仅因其年龄而重要,还因为它包含的化石。发现于这些岩石中的化石为我们提供了有关不同地质时期存在的生物类型的线索。例如,在寒武纪层中发现的三叶虫化石表明,复杂的生命形式已经在海洋中繁盛。随着你向上移动到更高的层,晚侏罗世地层中出现的恐龙骨骼则揭示了爬行动物在陆地上的主导地位。此外,在大峡谷暴露出的岩石也因其独特的矿物成分而受到广泛研究。这些岩石的不同颜色,从深红色到鲜艳的黄色,都是由于层中的各种矿物所致。例如,氧化铁使岩石呈现出红色,而石灰岩则贡献了更浅的色调。这种多样性不仅使峡谷在视觉上令人惊叹,还为地质学家提供了关于导致这些岩石形成的环境条件的重要信息。另一个值得注意的地方是沿海地区,在这里暴露出的岩石同样重要,因为侵蚀作用揭示了古老的海底。随着海浪冲击悬崖,它们逐渐磨损表面,暴露出曾经埋藏在海洋深处的岩层。这些暴露的岩石通常包含海洋化石,帮助科学家理解数百万年来海平面的变化。除了科学价值,这些地点的暴露出的岩石还具有文化意义。许多土著文化将这些自然构造视为神圣的,认为它们蕴含着祖先的灵魂。这种与土地的联系强调了保护这些地质奇观对未来几代人的重要性。总之,在全球各地的各种地质地点暴露出的岩石为我们提供了了解地球历史的窗口。从大峡谷的古老层到沿海侵蚀的悬崖,这些岩石讲述了我们星球演变的故事。它们提供了关于过去气候、生态系统甚至人类文明文化遗产的重要信息。因此,理解和保护这些自然珍宝至关重要,因为它们不仅增强了我们对地质学的知识,还丰富了我们对地球美丽和复杂性的欣赏。
相关单词