Explain the types of deposition plain
Answers
Answer:
Depositional plains It is of five types:
1.Alluvial plains: Examples are- Mississippi delta, Lomb-ardi plains (Italy) formed by Po river, Yangtze plain (China), Indus plain (Ganga), USA plain (Sacramento), Russia (Samarkand), South America (Chile) plain, Amazon plain, Salween and Mekong plains. [It is formed due to the rivers]. Delta plain: Ganga delta is the largest delta of the world (llakh 29 thousand sq.km), the tributaries of delta are called distributaries.
2.Glacial plains: These are of two types: True glacial plains: These are formed of pure glacial materials; Outwash plains: These are formed due to deposition of materials after the ablation of glaciers and ice sheets. Glacial plains are divided into three parts on the basis of structure and composition: -Till: Finer or coarser materials; Eskars and Drumlins; -Morainic: finer glacial materials; Outwash: Admixture of sands, gravels, silts and clays. Examples are- West Germany, north-west Russia, north-west USA, central Canada.
3.Lacustrine plains: When lakes are filled with sediments; examples are- Kashmir valley, Imphal basin, Hungary plain, Great lakes (North America) 4. Loesses plains: It is formed due to air transportation of the sand; it is an unstratified, homogeneous, finegrained. Examples are- Loesses of China, Europe, USSR, lower Missisippi (USA), Rhine valley (Alsace), southern Netherlands,
5.Lava plains: Examples are-France, USA, Iceland, Argentina, NewZealand. These are economically very important because black soils are formed due to weathering of lavas. These black soils are also called 'Regur' soils are good for growing cotton.
Explanation:
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Answer:
Explanation:they are mainly of 5 types:
l Alluvial Plains
ll Glacial Plains
lll Lacustrine Plains
lv Loesses Plains
v Lava Plains