![](/rp/kFAqShRrnkQMbH6NYLBYoJ3lq9s.png)
Erosion - Education | National Geographic Society
2025年1月7日 · Erosion is the geological process in which earthen materials are worn away and transported by natural forces such as wind or water. A similar process, weathering , breaks down or dissolves rock , but does not involve movement.
Erosion - Education | National Geographic Society
Erosion is the process where rocks are broken down by natural forces such as wind or water. There are two main types of erosion: chemical and physical. Chemical erosion occurs when a rock’s chemical composition changes, such as when iron …
The process of erosion moves bits of rock or soil from one place to another. Most erosion is performed by water, wind, or ice (usually in the form of a glacier).
Weathering - Education | National Geographic Society
2025年1月7日 · When ice melts, liquid water performs the act of erosion by carrying away the tiny rock fragments lost in the split. This specific process (the freeze-thaw cycle) is called frost weathering or cryofracturing. Temperature changes can also contribute to mechanical weathering in a process called thermal stress.
Sedimentary Rocks - National Geographic Society
2023年10月19日 · The most important geological processes that lead to the creation of sedimentary rocks are erosion, weathering, dissolution, precipitation, and lithification. Erosion and weathering include the effects of wind and rain, which slowly break down large rocks into …
Weathering - Education | National Geographic Society
There are two main types of weathering: chemical and physical. An example of chemical weathering is acid rain. Caused mostly by the burning of fossil fuels, acid rain is a form of precipitation with high levels of sulfuric acid, which can cause erosion in the materials in which it comes in contact.
The Rock Cycle - Education
2023年12月13日 · Through the process of erosion, these fragments are removed from their source and transported by wind, water, ice, or biological activity to a new location. Once the sediment settles somewhere, and enough of it collects, the lowest layers become compacted so tightly that they form solid rock.
Waterfall - Education | National Geographic Society
2023年10月19日 · Erosion is just one process that can form waterfalls. A waterfall may form across a fault , or crack in the Earth’s surface. An earthquake , landslide , glacier , or volcano may also disrupt stream beds and help create waterfalls.
The process of erosion, the wearing away of earth, plays an important part in the formation of waterfalls. Waterfalls themselves also contribute to erosion. Often, waterfalls form as streams flow from soft rock to hard rock. This happens both laterally (as a stream flows across the earth) and vertically (as the stream drops in a waterfall).
Walter's Travels - Weathering and Erosion - Education
2024年9月20日 · Meet Walter, a friendly animal who will guide you on your quest for knowledge about erosion and weathering. You will begin your journey by doing different activities to that will simulate weathering and erosion.
- 某些结果已被删除