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Very simply, rocks on the surface of the earth are weathered and eroded. The broken pieces are carried away, mostly by streams and rivers - this is transportation. When the river drops the pieces of rock, often when it reaches the sea, we have the material to start the formation of new sedimentary rocks. Weathering also exposes more older rock, so the processes continue.
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What are some differences of physical weathering and chemical weathering?
Physical weathering is due to: rocks hitting other rocks causing them to break up from the action of frost and ice the action of wind or waves or running water the action of plants. Chemical weathering changes the composition of the rock and is due to: water dissolving minerals in the rock oxidation of metals in the rock
Weathering by abrasion is usually caused by?
Wind-blown sand causes Mechanical Weathering of rocks by abrasion
What involves ways that rocks break down without changes to what?
Weathering involves ways that rocks break down without changes to their chemical state. Weathering involves mechanical forces e.g. wind and rainfall rather than chemical energy in disintegration or rocks.
How can a river both cause a chemical and physical weathering?
Water is a major component in weathering process. Its essential for all forms of disintegration either Mechanical/Physical, Biological or Chemical. Water aids in physical weathering through alternating wetting and drying of rocks thereby leading to breaking down of the rock. It helps in chemical weathering through dissolution of chemicals in rocks such as limestone. Water is a cause of both chemical and physical weathering.
What is differential weathering?
Hard rocks , such as granite, weather more slowly than softer rocks , such as limestone. Differential weathering happens when softer rocks weathers away and leaves harder, more resistant rock behind. The figures below show an example of how differential weathering can shape landscape.
Which aids in the weathering and transportation of rocks?
rain
What causes sedimentary rocks to change into hard rock?
weathering erosion transportation deposition compaction/cementation and lithification changes sediments to sedimentary rocks. High pressure and temperatures changes them to metamophic rocks
Contrast weathering and erosion?
Weathering is the disintegration and decomposition of rock at or near the surface of the Earth. Erosion is the transportation of material by water, wind, or ice. Simplistically, weathering is the breakdown of rocks and erosion is the carrying away of the broken down fragments.
What causes change in color in a sedimentary rock?
weathering erosion transportation deposition compaction/cementation and lithification changes sediments to sedimentary rocks. High pressure and temperatures changes them to metamophic rocks
How do physical weathering and chemical weathering affect rocks in the same way.?
Physical weathering and chemical weathering both break down rocks.
How air causes weathering of rocks?
High speed wind such as a tornado or cyclone can result in weathering of rocks. weathering of rocks make the huge rocks into stones and then into pebbles and then gradually into sand.
What is the implication of Weathering on rocks engineering property?
what is the implication of Weathering on rocks engineering property
What kinds of rocks are caused of weathering?
Metamorphic rocks change into sediments through weathering
What kind of rocks are caused by weathering?
The most common rock that experiences weathering, is sedimentary rocks. Metamorphic and Igneous are unlikey to.
what is the first step for formation in. sedimentary rocks?
Weathering
What is the relationship between weathering and gradation?
Weathering and gradation are closely related processes in geology, particularly in the context of erosion and sedimentation. Weathering refers to the breakdown and alteration of rocks and minerals at or near the Earth's surface due to physical, chemical, and biological processes. These processes include mechanical weathering (such as frost action, abrasion, and root wedging) and chemical weathering (such as dissolution, oxidation, and hydrolysis). Weathering breaks down rocks into smaller fragments and alters their mineral composition, preparing them for transportation and deposition. Gradation refers to the process by which weathered rock and mineral particles are transported and deposited by natural agents such as water, wind, ice, or gravity. This transportation and deposition of sediment result in the formation of sedimentary deposits and landforms. Gradation involves three main stages: erosion (removal of sediment), transportation (movement of sediment), and deposition (settling of sediment). The relationship between weathering and gradation is that weathering processes break down rocks into smaller particles and alter their composition, making them more susceptible to erosion and transportation by natural agents. As weathering continues, it produces sediment that is transported and deposited through gradation processes, leading to the formation of sedimentary rocks and various landforms such as valleys, river deltas, and beaches. In summary, weathering prepares rocks and minerals for erosion and transportation, while gradation involves the movement and deposition of weathered material to form sedimentary deposits and shape the Earth's surface.
When rocks are eroded and they break down into smaller pieces of rocks and minerals called what?
Sediment.
