marls

简明释义

英[mɑrlz]美[mɑrlz]

vt. 撒泥灰土（marld 的第三人称单数形式）

n. 泥灰土；石灰质粘土

英英释义

单词用法

同义词

反义词

例句

1.Carbonate sedimentary facies include lime-mud flats and algal flats in littoral lake, grain banks in shallow lake, algal mounds in shallow lake and marls in semi-deep lake etc.

碳酸盐岩沉积相可划分为滨湖灰泥坪、滨湖藻坪、浅湖颗粒滩、浅湖藻丘以及半深湖泥灰岩相。

2.Carbonate sedimentary facies include lime-mud flats and algal flats in littoral lake, grain banks in shallow lake, algal mounds in shallow lake and marls in semi-deep lake etc.

碳酸盐岩沉积相可划分为滨湖灰泥坪、滨湖藻坪、浅湖颗粒滩、浅湖藻丘以及半深湖泥灰岩相。

3.Buried hills of high density crystalline rock appear as positive anomalies and even outcropping conglomerates will show higher values than surrounding claystones and marls.

被掩埋的高密度结晶岩山丘显示为正的重力异常。即使砾岩露头也会显示出比周围的泥岩和泥灰岩高的重力异常值。

4.The soil in this region is rich in marls, which helps to retain moisture.

该地区的土壤富含泥灰岩，有助于保持水分。

5.Farmers often mix marls into their fields to improve soil fertility.

农民们常常将泥灰岩混入田地，以提高土壤肥力。

6.The presence of marls in the sedimentary layers suggests a shallow marine environment.

沉积层中存在的泥灰岩表明这是一个浅海环境。

7.The geological survey indicated that the area contains large deposits of marls.

地质调查显示该地区含有大量的泥灰岩储备。

8.In construction, marls can be used as a base material for roads.

在建筑中，泥灰岩可以用作道路的基础材料。

作文

In the study of geology, various types of sedimentary rocks play a crucial role in understanding the Earth's history and its formation processes. One such type is marls, which are defined as a mixture of clay and calcium carbonate. These sedimentary deposits are often found in shallow marine environments and can provide significant insights into past climatic conditions. The formation of marls typically occurs in areas where organic material accumulates, and the presence of calcium carbonate indicates that these regions were once underwater. The significance of marls extends beyond their geological implications; they also have practical applications in agriculture. Due to their rich mineral content, marls can be used as a soil amendment to improve fertility. Farmers often incorporate marls into their fields to enhance the nutrient levels in the soil, particularly in regions where the soil lacks essential minerals. This practice not only boosts crop yields but also promotes sustainable farming practices by reducing the need for chemical fertilizers.Moreover, marls serve as important indicators of environmental change. Scientists study these deposits to trace back historical climate changes, as the composition of marls can reflect shifts in temperature and precipitation patterns over time. For example, a higher concentration of organic materials in marls may suggest a warmer climate, while layers with more clay could indicate cooler, wetter conditions. By analyzing these characteristics, researchers can reconstruct past environments and better understand how current climate trends may evolve.In addition to their geological and agricultural significance, marls also have implications for the fossil record. Many fossils are found embedded within marls, providing crucial evidence for paleontologists studying ancient life forms. The preservation of fossils in marls can shed light on the biodiversity of past ecosystems, revealing how species adapted to changing environments. This information is invaluable for understanding the evolutionary history of life on Earth.In conclusion, marls are more than just simple sedimentary deposits; they are vital components of our planet's geological and ecological systems. Their role in agriculture, climate research, and paleontology highlights the interconnectedness of Earth's processes. As we continue to study marls, we gain a deeper appreciation for the complexity of our planet's history and the importance of preserving its natural resources for future generations.

在地质学研究中，各种类型的沉积岩在理解地球历史及其形成过程方面发挥着至关重要的作用。其中一种类型是marls，它被定义为粘土和碳酸钙的混合物。这些沉积物通常出现在浅海环境中，并能提供对过去气候条件的重要见解。marls的形成通常发生在有机物积累的地区，而碳酸钙的存在表明这些区域曾经处于水下。marls的重要性不仅体现在其地质意义上；它们在农业中也具有实际应用。由于其丰富的矿物成分，marls可以作为土壤改良剂来改善土壤肥力。农民通常将marls融入他们的田地，以提高土壤中的营养水平，特别是在土壤缺乏必要矿物质的地区。这种做法不仅提高了作物产量，还通过减少对化肥的需求促进了可持续农业实践。此外，marls作为环境变化的重要指示物，也受到重视。科学家们研究这些沉积物以追溯历史气候变化，因为marls的组成可以反映温度和降水模式随时间的变化。例如，marls中有机物含量较高可能表明气候更温暖，而含有更多粘土的层则可能表示气候较冷、潮湿。通过分析这些特征，研究人员可以重建过去的环境，更好地理解当前气候趋势可能如何演变。除了其地质和农业意义外，marls在化石记录中也具有重要意义。许多化石嵌入在marls中，为古生物学家研究古代生命形式提供了重要证据。marls中化石的保存可以揭示过去生态系统的生物多样性，显示物种如何适应变化的环境。这些信息对于理解地球生命的进化历史是无价的。总之，marls不仅仅是简单的沉积物；它们是我们星球地质和生态系统的重要组成部分。它们在农业、气候研究和古生物学中的作用突显了地球过程的相互联系。随着我们继续研究marls，我们对地球历史的复杂性以及保护其自然资源以造福未来几代人的重要性有了更深刻的认识。