erratics

简明释义

英[ɪˈrætɪks]美[ɪˈrætɪks]

n. 漂砾；怪人；漫游者（erratic 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Erratics ate boulders transported by glaciers and deposited some distance from their point of origin.

漂砾是由冰川搬运并在距发源地一定距离的地方堆积的巨砾。

2.Erratics ate boulders transported by glaciers and deposited some distance from their point of origin.

漂砾是由冰川搬运并在距发源地一定距离的地方堆积的巨砾。

3.The glacial deposits were filled with numerous erratics, which are rocks that have been transported by ice and deposited far from their source.

冰川沉积物中充满了许多erratics，它们是被冰块运输并远离其来源的岩石。

4.During our hike, we noticed several large erratics scattered across the valley, each telling a story of ancient glacial movement.

在我们的徒步旅行中，我们注意到山谷中散落着几块大型erratics，每一块都讲述着古老冰川运动的故事。

5.The presence of erratics in this region indicates that glaciers once covered these lands thousands of years ago.

该地区存在的erratics表明，数千年前冰川曾覆盖这些土地。

6.Geologists often study erratics to understand the history of glacial movements and climate changes.

地质学家经常研究erratics以了解冰川运动和气候变化的历史。

7.Some erratics are composed of granite, while others may be made of limestone or sandstone, showcasing the diversity of rock types.

一些erratics由花岗岩组成，而其他可能由石灰岩或砂岩制成，展示了岩石类型的多样性。

作文

In the study of geology, one often encounters the term erratics, which refers to rocks that have been transported from their original location by glacial movement. These stones are typically found in areas where the bedrock is different from the rock type of the erratics, indicating a significant geological event. The presence of erratics can provide valuable insights into past climatic conditions and the movement of glaciers over time. To understand the significance of erratics, we must first delve into the processes of glaciation. During ice ages, massive glaciers would form and advance over vast landscapes, picking up rocks and debris along the way. When these glaciers eventually melted, they left behind the erratics scattered across the terrain. These stones can vary greatly in size, shape, and composition, often standing out against the local geology due to their foreign nature. The study of erratics is not only important for geologists but also for understanding the history of our planet. By analyzing the composition of these rocks, scientists can trace the path of glaciers and reconstruct ancient environments. For instance, a granite boulder found in a region dominated by limestone may indicate that a glacier transported it from a distant mountain range. This information helps researchers piece together the puzzle of Earth's climatic history and the factors that led to the formation of various landscapes. Moreover, erratics serve as a reminder of the dynamic nature of our planet. They illustrate how forces such as ice, water, and wind can shape the earth's surface over time. As we study these geological features, we gain a greater appreciation for the power of natural processes and the ever-changing environment we inhabit. In addition to their scientific importance, erratics also hold cultural significance. Many indigenous peoples have legends and stories associated with these unique stones, viewing them as markers of historical events or spiritual significance. For example, some cultures believe that erratics are the remnants of giants or other mythical beings, adding a layer of folklore to their geological identity. As we continue to explore and learn about erratics, we uncover not only the physical history of our planet but also the stories that connect us to the land. Each erratic tells a tale of its journey, from the depths of a glacier to its resting place in a new environment. It invites us to ponder the forces that shaped our world and to appreciate the intricate relationship between nature and culture. In conclusion, erratics are more than just rocks; they are symbols of our planet's history and the powerful forces that have shaped it. Their study enriches our understanding of geology, climate change, and even cultural narratives. As we observe these intriguing formations, we are reminded of the ever-evolving story of Earth and our place within it. The next time you encounter an erratic, take a moment to consider the journey it has taken and the secrets it may hold.

在地质学的研究中，人们常常会遇到术语erratics，指的是那些通过冰川运动从其原始位置运输过来的岩石。这些石头通常发现于基岩与erratics的岩石类型不同的区域，表明发生了重大的地质事件。erratics的存在可以为我们提供关于过去气候条件和冰川运动的重要见解。 要理解erratics的重要性，我们必须首先深入了解冰川作用的过程。在冰河时代，巨大的冰川会在广阔的景观上形成并向前推进，沿途拾起岩石和碎屑。当这些冰川最终融化时，它们留下了散落在地形上的erratics。这些石头的大小、形状和成分差异很大，常常因其外来特性而在当地地质中显得突出。 对erratics的研究不仅对地质学家重要，也对理解我们星球的历史至关重要。通过分析这些岩石的成分，科学家可以追踪冰川的路径，并重建古代环境。例如，在以石灰岩为主的地区发现的花岗岩巨石可能表明，一座冰川将其从遥远的山脉运输过来。这些信息帮助研究人员拼凑出地球气候历史的拼图，以及导致各种地貌形成的因素。 此外，erratics也提醒我们地球的动态特性。它们展示了冰、水和风等力量如何随着时间的推移塑造地球表面。当我们研究这些地质特征时，我们对自然过程的力量和我们所居住的不断变化的环境有了更深的欣赏。 除了科学重要性，erratics还具有文化意义。许多土著人民与这些独特的石头有着相关的传说和故事，将它们视为历史事件或精神意义的标志。例如，一些文化相信erratics是巨人或其他神话生物的遗骸，为它们的地质身份增添了一层民间传说。 随着我们继续探索和了解erratics，我们不仅揭示了我们星球的物理历史，还揭开了将我们与土地连接起来的故事。每一块erratic都讲述着它的旅程，从冰川的深处到它在新环境中的安息之地。它邀请我们思考塑造我们世界的力量，并欣赏自然与文化之间复杂的关系。 总之，erratics不仅仅是岩石；它们是我们星球历史和塑造它的强大力量的象征。对它们的研究丰富了我们对地质学、气候变化甚至文化叙事的理解。当我们观察这些引人入胜的形成时，我们被提醒地球不断演变的故事以及我们在其中的位置。下次你遇到一个erratic时，请花一点时间考虑它所经历的旅程及其可能隐藏的秘密。