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  2. Weathering - Wikipedia

    en.wikipedia.org/wiki/Weathering

    Weathering is the deterioration of rocks, soils and minerals (as well as wood and artificial materials) through contact with water, atmospheric gases, sunlight, and biological organisms. It occurs in situ (on-site, with little or no movement), and so is distinct from erosion , which involves the transport of rocks and minerals by agents such as ...

  3. Erosion - Wikipedia

    en.wikipedia.org/wiki/Erosion

    Erosion and changes in the form of river banks may be measured by inserting metal rods into the bank and marking the position of the bank surface along the rods at different times. [23] Thermal erosion is the result of melting and weakening permafrost due to moving water. [24] It can occur both along rivers and at the coast.

  4. Abrasion (geology) - Wikipedia

    en.wikipedia.org/wiki/Abrasion_(geology)

    In addition to chemical and physical weathering of hydraulic action, freeze-thaw cycles, and more, there is a suite of processes which have long been considered to contribute significantly to bedrock channel erosion include plucking, abrasion (due to both bedload and suspended load), solution, and cavitation.

  5. Denudation - Wikipedia

    en.wikipedia.org/wiki/Denudation

    Denudation incorporates the mechanical, biological, and chemical processes of erosion, weathering, and mass wasting. Denudation can involve the removal of both solid particles and dissolved material. These include sub-processes of cryofracture, insolation weathering, slaking, salt weathering, bioturbation, and anthropogenic impacts. [4]

  6. Sediment - Wikipedia

    en.wikipedia.org/wiki/Sediment

    Sediment is a solid material that is transported to a new location where it is deposited. [1] It occurs naturally and, through the processes of weathering and erosion, is broken down and subsequently transported by the action of wind, water, or ice or by the force of gravity acting on the particles.

  7. Natural arch - Wikipedia

    en.wikipedia.org/wiki/Natural_arch

    Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion from the sea, rivers or weathering (subaerial processes). Most natural arches are formed from narrow fins and sea stacks composed of sandstone or limestone with steep, often vertical, cliff faces.

  8. Attrition (erosion) - Wikipedia

    en.wikipedia.org/wiki/Attrition_(erosion)

    Rocks undergoing attrition erosion are often found on or near the bed of a stream. [2] Attrition is also partially responsible for turning boulders into smaller rocks and eventually to sand. [3] Attrition erosion allows past and present geologic changes to be understood as well as paleogeomorphic environments to be interpreted. Researchers use ...

  9. Joint (geology) - Wikipedia

    en.wikipedia.org/wiki/Joint_(geology)

    Joints have a profound control on weathering and erosion of bedrock. As a result, they exert a strong control on how topography and morphology of landscapes develop. Understanding the local and regional distribution, physical character, and origin of joints is a significant part of understanding the geology and geomorphology of an area.