atmospheric weathering

简明释义

1. 大气风化; 2. 大气风化作用;

英英释义

例句

1.Scientists study atmospheric weathering 大气风化 to understand how climate change affects rock formations.

科学家研究大气风化以理解气候变化如何影响岩石形态。

2.The color changes in rocks are often due to atmospheric weathering 大气风化 effects.

岩石颜色的变化通常是由于大气风化的影响。

3.In coastal areas, atmospheric weathering 大气风化 can lead to significant changes in landscape.

在沿海地区，大气风化可以导致景观的显著变化。

4.The formation of soil is greatly influenced by atmospheric weathering 大气风化 processes.

土壤的形成受到大气风化过程的重大影响。

5.The ancient ruins show signs of atmospheric weathering 大气风化, which has eroded the stone over centuries.

这些古代遗址显示出大气风化的迹象，几个世纪以来石头被侵蚀。

作文

Atmospheric weathering is a natural process that significantly alters the Earth's surface over time. This phenomenon occurs when rocks and minerals are exposed to the atmosphere, leading to their breakdown and transformation. The term 'atmospheric weathering' refers specifically to the chemical, physical, and biological processes that occur as a result of exposure to air, moisture, and temperature changes. Understanding this concept is crucial for various fields, including geology, environmental science, and climate studies.One of the primary mechanisms of atmospheric weathering (大气风化) is the chemical reaction between atmospheric gases and minerals. For instance, carbon dioxide in the atmosphere can dissolve in rainwater, forming carbonic acid. When this acidic water comes into contact with limestone or marble, it can lead to the dissolution of calcium carbonate, resulting in the gradual wearing away of these rocks. This process not only shapes landscapes but also contributes to soil formation, as the minerals released from weathered rocks enrich the soil.Physical weathering is another aspect of atmospheric weathering (大气风化). This type of weathering involves the mechanical breakdown of rocks without changing their chemical composition. Temperature fluctuations can cause rocks to expand during the day and contract at night. Over time, this repeated cycle of expansion and contraction can lead to cracks and fissures, ultimately causing the rocks to break apart. Additionally, freeze-thaw cycles in colder climates can exacerbate this process, as water seeps into cracks, freezes, and expands, further breaking down the rock.Biological weathering also plays a significant role in atmospheric weathering (大气风化). Living organisms, such as plants and microorganisms, can contribute to the weathering of rocks. For example, plant roots can penetrate cracks in rocks, exerting pressure as they grow. This pressure can eventually cause the rock to fracture. Moreover, certain fungi and bacteria can produce acids that chemically alter minerals, facilitating the weathering process. Thus, biological activity is an essential factor in the overall weathering of rocks and soils.The implications of atmospheric weathering (大气风化) extend beyond mere geological changes; they also have significant environmental impacts. For instance, the process of weathering can influence the carbon cycle by releasing carbon dioxide back into the atmosphere, which can affect global temperatures and climate patterns. Furthermore, understanding weathering processes is vital for predicting soil erosion, which can lead to loss of arable land and negatively impact agriculture.In summary, atmospheric weathering (大气风化) is a complex interplay of chemical, physical, and biological processes that shape our planet's surface. By breaking down rocks and minerals, it contributes to soil formation and influences environmental conditions. As we continue to study and understand these processes, we can better appreciate the dynamic nature of Earth's systems and the importance of preserving our environment for future generations.