stromatolites

简明释义

英[strəʊˈmætəlaɪts]美[stroʊˈmætəlaɪts]

[地质] 叠层石

英英释义

单词用法

同义词

反义词

例句

1.Modern stromatolites form in shallow tidal areas, and are the result of bacteria growing and trapping minerals as they do so.

在浅滩地区形成的现代层叠岩石，是细菌生长和捕获矿物质而形成的。

2.The stromatolites in the Giant's Causeway are in a tiny brackish pool, exposed to the violence of waves and easy prey to the animals that are already living amongst them.

巨人岬的叠层石群位于一处面积不大的咸水滩中，暴露于惊涛骇浪和已“搬迁入住”的天敌虎口之中。

3.Overall, the frequently fluctuated lacustrine conditions and the surrounding tectogenesis are mainly responsible for the greatly varied form, different genesis of stromatolites.

柴达木盆地频繁变化的湖相水体条件和周围的构造运动是叠层石形态多样，成因各异的主要外部和环境因素。

4.At last, this paper discusses what is the dominant function in the formation and decline of stromatolites beween the evolution of metazoans and changing environments.

对比论述了后生动物的演化和环境因素在叠层石的形成与衰减的过程中谁占主导作用。

5.The blue-green algae that form the stromatolites helped create our present atmosphere by breaking down carbon dioxide and excreting oxygen.

形成叠层石的蓝绿色藻类通过分解二氧化碳和排出氧气，从而有助于创造出我们目前的大气层。

6.Rain water is leaching through the ground and the shells, dissolving out calcium carbonate and carrying to the stromatolites.

雨水渗过地面和贝壳，溶解碳酸钙并把其带到叠层石上。

7.Some of the oldest known fossils are stromatolites, dating back over 3 billion years.

一些已知最古老的化石是叠层石，可追溯到超过30亿年前。

8.The ancient rocks in the area are rich with stromatolites, which are layered structures created by microbial communities.

该地区的古老岩石丰富地包含叠层石，这些是由微生物群落形成的分层结构。

9.The study of stromatolites has revealed much about the evolution of photosynthetic organisms.

对叠层石的研究揭示了光合生物演化的许多信息。

10.Scientists study stromatolites to understand early life on Earth, as they provide clues about ancient ecosystems.

科学家研究叠层石以理解地球早期生命，因为它们提供了关于古代生态系统的线索。

11.In the Bahamas, you can find living stromatolites that are still forming today.

在巴哈马，你可以找到仍在形成的活叠层石。

作文

Stromatolites are fascinating geological structures that provide a unique glimpse into the Earth's ancient past. These layered formations, primarily made of sediment and microbial mats, have been around for billions of years. They are considered one of the oldest records of life on Earth, dating back to at least 3.5 billion years ago. The significance of stromatolites (叠层石) lies not only in their age but also in their role in shaping the planet's atmosphere and biosphere.The formation of stromatolites (叠层石) occurs through the activities of microorganisms, particularly cyanobacteria. These tiny organisms photosynthesize, converting sunlight into energy while releasing oxygen as a byproduct. This process played a crucial role in the Great Oxidation Event, which dramatically increased the levels of oxygen in the Earth's atmosphere. As cyanobacteria grew and formed mats, they trapped sediments, leading to the development of these layered structures. Over time, the accumulation of these layers created the distinct appearance of stromatolites (叠层石).Today, we can find living stromatolites (叠层石) in a few locations around the world, such as Shark Bay in Australia and the Bahamas. These modern examples offer scientists invaluable insights into how ancient stromatolites (叠层石) may have functioned and interacted with their environments. Studying these living fossils helps researchers understand the conditions that existed on Earth billions of years ago, providing clues about the evolution of life and the planet's geological history.The study of stromatolites (叠层石) is not only important for understanding the past but also has implications for our future. As scientists explore the potential for life on other planets, they look to stromatolites (叠层石) as a model for what early life might have looked like in extraterrestrial environments. The resilience and adaptability of these structures offer hope that life could exist under conditions vastly different from those on Earth.Moreover, stromatolites (叠层石) contribute to our understanding of contemporary ecosystems. They play a vital role in maintaining the health of marine environments by stabilizing sediments and providing habitats for various organisms. The decline of stromatolites (叠层石) in some regions due to pollution and climate change serves as a warning sign for the overall health of marine ecosystems. Protecting these ancient structures is crucial for preserving biodiversity and ensuring the stability of marine environments.In conclusion, stromatolites (叠层石) are more than just geological formations; they are a testament to the resilience of life on Earth. Their ancient origins and ongoing significance make them a subject of great interest for scientists and nature enthusiasts alike. By studying stromatolites (叠层石), we gain valuable insights into the history of our planet, the evolution of life, and the importance of preserving our natural environments for future generations.

叠层石是迷人的地质结构，为我们提供了对地球古老过去的独特洞察。这些主要由沉积物和微生物垫组成的分层构造已经存在了数十亿年。它们被认为是地球上生命最古老的记录之一，至少可以追溯到35亿年前。stromatolites（叠层石）的重要性不仅在于它们的年龄，还在于它们在塑造地球大气和生物圈中的作用。stromatolites（叠层石）的形成是通过微生物的活动，特别是蓝藻来实现的。这些微小的生物通过光合作用，将阳光转化为能量，同时释放氧气作为副产品。这个过程在大氧化事件中发挥了至关重要的作用，该事件显著增加了地球大气中的氧气水平。当蓝藻生长并形成垫时，它们会捕获沉积物，导致这些分层结构的发展。随着时间的推移，这些层的积累形成了stromatolites（叠层石）独特的外观。今天，我们可以在世界各地的少数地方找到活着的stromatolites（叠层石），例如澳大利亚的鲨鱼湾和巴哈马。这些现代例子为科学家提供了无价的见解，帮助他们理解古代stromatolites（叠层石）可能如何运作以及如何与环境相互作用。研究这些活化石帮助研究人员了解数十亿年前地球上存在的条件，为生命的演变和地球的地质历史提供线索。对stromatolites（叠层石）的研究不仅对理解过去重要，而且对我们的未来也有影响。随着科学家探索其他星球上生命的可能性，他们将stromatolites（叠层石）视为外星环境中早期生命可能是什么样子的模型。这些结构的韧性和适应性为生命在与地球截然不同的条件下存在提供了希望。此外，stromatolites（叠层石）有助于我们理解当代生态系统。它们在维持海洋环境的健康方面发挥着至关重要的作用，通过稳定沉积物并为各种生物提供栖息地。在某些地区，由于污染和气候变化，stromatolites（叠层石）的减少作为海洋生态系统整体健康的警告信号。保护这些古老的结构对于保护生物多样性和确保海洋环境的稳定至关重要。总之，stromatolites（叠层石）不仅仅是地质构造；它们是地球上生命韧性的证明。它们的古老起源和持续重要性使它们成为科学家和自然爱好者都非常感兴趣的主题。通过研究stromatolites（叠层石），我们获得了对我们星球历史、生命演变以及保护我们自然环境以造福后代的重要性的重要见解。