A rock can be weathered by water and wind.
Rocks can be eroded by abrasion from particles carried by water, wind, or ice.
One way is wind over time can wear a rock down.
Another is water can erode something like sand into finer particles on a beach.
A third way rock can be weathered is friction against another object can wear something down over a long period of time.
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The layer of soil that contains weathered rocks is the subsoil. This layer is located beneath the topsoil and consists of partially weathered rocks and minerals.
Soil is a mixture of organic matter and weathered rocks. Organic matter comes from decomposed plant and animal material, while weathered rocks contribute minerals and nutrients to the soil.
Weathered rocks with rust streaks are likely to contain iron minerals that oxidize when exposed to air and water, forming iron oxide, or rust. This process occurs over time through a series of chemical reactions, giving the rocks their characteristic rusty appearance.
All types of rocks can be weathered and eroded. However, sedimentary rocks are typically more susceptible to weathering and erosion compared to igneous and metamorphic rocks due to their composition and structure.
Deposited weathered rocks can form sedimentary rocks through processes like compaction and cementation. These rocks are made up of fragments of pre-existing rocks that have undergone weathering and erosion before ultimately being deposited and lithified to form a new rock.
Sedimentary rocks can be both chemically and mechanically weathered.
The layer of soil that contains weathered rocks is the subsoil. This layer is located beneath the topsoil and consists of partially weathered rocks and minerals.
Weathered rocks that are composed of smaller fragments and grains are referred to as sedimentary rocks. These rocks are formed through the process of erosion, transportation, deposition, and lithification of the weathered materials.
Sedimentary rocks made of weathered rock fragments are called clastic sedimentary rocks. These rocks are formed from the accumulation and cementation of fragments that have been weathered, eroded, and transported from their original source. Examples include sandstone, shale, and conglomerate.
Some weathered rocks have rust streaks due to the iron content in the rocks. When rocks that have ferrous iron are weathered there will be rust streaks present.
Neither, at the surface all rocks become weathered.
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Soil is a mixture of organic matter and weathered rocks. Organic matter comes from decomposed plant and animal material, while weathered rocks contribute minerals and nutrients to the soil.
When sedimentary rocks are weathered and eroded, they turn into sediments. And after compaction and cementation of the sediments, it will turn back into sedimentary rock.
We get weathered by being on or near the surface and exposed to environments different than we were formed in.
weathered remains of other rocks
Weathered rocks with rust streaks are likely to contain iron minerals that oxidize when exposed to air and water, forming iron oxide, or rust. This process occurs over time through a series of chemical reactions, giving the rocks their characteristic rusty appearance.