What is the process of modifying a smooth slope into a series of level stair like steps to prevent erosion?
The process of modifying a smooth slope into a series of level, stair like steps is called TERRACING.
What type of dune is arch shaped with the open end of the arch pointing to the windward side?
Parabolic dunes are arch-shaped and are different from crescentic dunes in the manner that the open end of the arch points to the windward side instead of the leeward side.
What is a huge bowl shaped depression scooped out by a valley glacier?
cirque. a huge bowl shaped depression dug out by a valley glacier is. levee.
What is the fan shaped deposit left by a large river when it reaches the ocean?
As a river meets the sea, the sediment it carries is deposited in a fan-like formation called a delta. As longshore drift picks up and transports the sediment, it can be carried and deposited down current to form shoreline sediment features such as sand bars, spits, and barrier islands.
What is alluvial fan flooding?
Flooding occurring on the surface of an alluvial fan or similar landform which originates at the apex and is characterized by high-velocity flows; active processes of erosion, sediment transport, and deposition; and unpredictable flowpaths.
What is the difference between alluvial fan and delta?
The main difference between alluvial fan and delta is that alluvial fans are formed from the deposition of water-transported materials, whereas delta is formed from the deposition of sediments carried by rivers at an estuary.
What causes alluvial fans to form?
An alluvial fan is a triangle-shaped deposit of gravel, sand, and even smaller pieces of sediment, such as silt. This sediment is called alluvium. Alluvial fans are usually created as flowing water interacts with mountains, hills, or the steep walls of canyons.
How do I identify an alluvial fan?
- Check the mouths of tributaries in larger valleys while in the field.
- Check topographic maps, and look for fan shaped elevation lines at the mouths of tributaries.
- Check soils maps for soils designated as “local alluvium.”
Where would you be most likely to find an alluvial fan?
Alluvial fans and bajadas are often found in deserts, where flash floods wash alluvium down from nearby hills. They can also be found in wetter climates, where streams are more common. Alluvial fans are even found underwater.
What are some examples of alluvial fan?
Examples of Alluvial Fan Landforms: Near the mountains south of the Taklamakan Desert in Xinjiang, China lies an alluvial fan 25 miles long and nearly as wide. The best example of an alluvial fan is the one in Nepal created by the streaming Koshi River. It has an area of almost 15000 square kilometers.
What does alluvium look like?
Because floods periodically deposit new sediment at the surface, alluvial soils can have a unique layered look. Dark and light colors alternate, along with assorted sizes of round gravel particles. This unique layering process is called stratification and is evident in many floodplains.
What is the very fertile alluvium?
Alluvium consists of silt, sand, clay, and gravel and often contains a good deal of organic matter. It therefore yields very fertile soils such as those of the deltas of the Mississippi, the Nile, the Ganges and Brahmaputra, and the Huang rivers. Alluvial soils are widespread.
What is modern alluvium?
Alluvium. A general term for clay, silt, sand, gravel or similar unconsolidated detrital material, deposited during comparatively recent geologic time by a stream or other body of running water, as a sorted or semi-sorted sediment… Subtopics: Alluvial fan. Alluvial terrace.
What is the other name of younger alluvium soil?
Bhangar
What is the other name of alluvium?
What is another word for alluvium?
| ooze | sludge |
|---|---|
| muck | mud |
| slime | mire |
| dirt | slush |
| gunk | slop |
What is Khadar in short?
Khadir or Khadar are the low-lying areas, also called Nali or Naili. Khadar areas are vulnerable to floods and often have parts of former river beds that were made available for cultivation when the course of a river changes.
What is called Khadar?
Khadir or Khadar (Hindi: खादर), also called Nali or Naili, are low-lying areas that are floodplains of a river and which are usually relatively narrower compared to unflooded bangar area.
What is bhangar very short answer?
Bhangar: It covers large parts of northern plains. It is composed of old alluvial soil. It contains calcareous deposits locally known as ‘Kankar’. Soil is not very fertile.