What is drainage basin and pattern?
Drainage Pattern: It refers to the system of flow of surface water mainly through the forms of rivers and basins. The drainage system depends upon factors such as slope of land, geological structure, amount of volume of water and velocity of water.
What are the different drainage pattern?
Drainage patterns. Per the lie of channels, drainage systems can fall into one of several categories, known as drainage patterns. These depend on the topography and geology of the land. All forms of transitions can occur between parallel, dendritic, and trellis patterns.
What is the most common drainage pattern?
dendritic drainage pattern
A dendritic drainage pattern is the most common form and looks like the branching pattern of tree roots. It develops in regions underlain by homogeneous material. That is, the subsurface geology has a similar resistance to weathering so there is no apparent control over the direction the tributaries take.
What are the 4 types of drainage patterns Class 9?
Depending on the slope of the land, underlying rock structure as well as the climatic conditions of the area, the streams within a drainage basin form certain patterns. These are dendritic, trellis, rectangular, and radial patterns.
What is centripetal drainage pattern?
river systems In river: Drainage patterns. Centripetal patterns are produced where drainage converges on a single outlet or sink, as in some craters, eroded structural domes with weak cores, parts of some limestone country, and enclosed desert depressions.
What are the 5 drainage basins in Canada?
Canada’s major drainage regions are the Atlantic Ocean, Hudson Bay, Arctic Ocean, Pacific Ocean and Gulf of Mexico. Rivers are organized into networks, each with its own recharge area upstream, and drainage channel and mouth downstream.
What is a drainage basin geography?
Definition: When rain falls on an area of land, the water travels downhill and typically collects into a lake or travels on through a river. A catchment area can also be known as Drainage Basin. …
How are drainage basins formed?
A drainage basin is formed by the action of water as it forms streams and rivers that flow downhill.
How do I find my drainage pattern?
Drainage patterns are classified on the basis of their form and texture according to slope and structure. Their shape or pattern develops in response to the local topography and subsurface geology. River segments inside a river network can be organised in five types of drainage pattern (Figure.
What is a drainage pattern Class 7?
Drainage Pattern is the pattern formed by the streams, rivers, and lakes in a particular drainage basin. The pattern created by stream erosion over time reveals characteristics of the kind of rocks and geologic structures in a landscape region drained by streams.
What are the different types of drainage patterns?
A drainage pattern is described as discordant if it does not correlate to the topography and geology of the area. Discordant drainage patterns are classified into two main types: antecedent and superimposed, while anteposition drainage patterns combine the two.
What is an example of a drainage basin?
Drainage basin, also called Catchment Area , or (in North America) Watershed, area from which all precipitation flows to a single stream or set of streams. For example, the total area drained by the Mississippi River constitutes its drainage basin, whereas that part of the Mississippi River drained by the Ohio River is the Ohio’s drainage basin.
How does a radial drainage pattern look?
Radial drainage patterngeological features on which radial drainage commonly develops are domes and laccoliths. On these features the drainage may exhibit a combination of radial and annular patterns. In a radial drainage system, the streams radiate outwards from a central high point. Volcanos usually display excellent radial drainage.
What is a rectangular drainage pattern?
Definition of rectangular drainage pattern. A drainage pattern in which the main streams and their tributaries display many right-angle bends and exhibit sections of approx. the same length; it is indicative of streams following prominent fault or joint systems that break the rocks into rectangular blocks.