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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.
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic data.
This glossary of geography terms is a list of definitions of terms and concepts used in geography and related fields, including Earth science, oceanography, cartography, and human geography, as well as those describing spatial dimension, topographical features, natural resources, and the collection, analysis, and visualization of geographic data.
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the landforms and features themselves, or a description or depiction in maps. Topography is a field of geoscience and planetary science and is concerned with local detail in general, including not only relief , but also natural ...
Surface topography and changes to surface topography, such as mass wasting and erosion; [8] and; Tectonic activity, such as deformation, the changing of rocks due to stress mainly from tectonic forces, [8] and orogeny, the process that forms mountains.
The erosion of hard ocean substrates by living organisms through various biological mechanisms. biogenic Of biological origin – Produced by the present or past activity of living organisms, or by a biological process. bioherm Landform of organic sedimentary rock enclosed or surrounded by rock of different origin. biostratigraphy
Splash erosion is generally seen as the first and least severe stage in the soil erosion process, which is followed by sheet erosion, then rill erosion and finally gully erosion (the most severe of the four). [6] [7] In splash erosion, the impact of a falling raindrop creates a small crater in the soil, [8] ejecting soil particles. [9]
These sub-processes include erosion (if any) or initiation of erosion, weathering, and meltwater flow from beneath the snow patch. [3] Weathered particles are moved downslope by creep, solifluction and rill wash. [1] Over time, this leads to the formation of nivation hollows which, when enlarged, can be the beginnings of a cirque. [1]