What is a drainage pattern. Dendritic drainage pattern 2019-01-09

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What are drainage patterns

what is a drainage pattern

For example, rivers like Godavari, Krishna and Kaveri, descending from the Western Ghats and flowing into the Bay of Bengal, are some of the consequent rivers of Peninsular India. . The flowing water can erode the soft rocks and thus flows along the bands of soft rock. It forms in a ridge-and-valleylandscape,where rocks that have unequal resistance to erosion arefolded into series of anticlines and syclines. Left and right ā€¦ hands usually sharing some characteristics. The longitudinal consequent streams, as master streams, are developed in the longitudinal parallel valleys while tributaries, as lateral consequents, after originating from the hillslopes of the bordering paralĀ­lel ridges join the longitudinal consequents almost at right angle. The depression formed at the top of Raigarh Dome in the Lower Chambal Basin has given birth to centripetal drainage pattern.

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Drainage pattern

what is a drainage pattern

Barbed Pattern A pattern of drainage in which the confluence of a tributary with the main river is characterised by a discordant junctionā€”as if the tributary intends to flow upstream and not downstream. Trellised drainage patterns are generally formed in the regions of cuesta topography where hard beds become escarpĀ­ments and soft beds are eroded to become valleys or lowlands. The complicated of rivers and streams removing surplus meteoric waters and related to the underlying geological. The local upland situated to the south-west of Ranchi city has given birth to radial drainage pattern wherein the South Koel, the Subarnarekha, the Kanchi and the Karo rivers take their sources and radiate in different directions. Several streams develop on both the flanks of the ridges and join the longitudinal synclinal streams at right angle. In a dendritic system, there are many contributing streams analogous to the twigs of a tree , which are then joined together into the tributaries of the main river the branches and the trunk of the tree, respectively. The drainage basins are young and are still sorting themselves out.

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What Is a Trellis Drainage Pattern?

what is a drainage pattern

In such environmental conditions the pattern extends both in length and width but if the region is characterized by higher slope angles, the pattern extends more in length than in width. Trellis Drainage It is a rectangular pattern formed where two sets of structural controls occurs at right angles. Rivers like Narmada, Son and Mahanadi originating from Amarkantak Hills flow in different directions and are good examples of radial pattern. Dendritic systems form in ; as a result, the rock types must be and. This drainage pattern is formed when the tributaries of the main consequent stream are developed in the form of a circle. The smaller streams which become dry during a part of the year seasonal rivers are shown in black colour. Most areas of British Columbia have dendritic patterns, as do most areas of the prairies and the Canadian Shield.

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4 Common Types of Drainage Patterns

what is a drainage pattern

An iamb is an unstressed syllable followed by a stressed one, as in the word 'about' or 'relief'. Centripetal drainage systems are similar to radial drainage systems except the rivers flow in the opposite direction. Article shared by Most of the rivers originate in the mountains. Ponding is especially dangerous when freezing weather sets in and ice hazards result. Other geological features on which radial drainage commonly develops are domes and laccoliths. The resulting pattern often reflects the underlying rock type and structure, and several varieties are recognized. In due course of time, a number of small streams join the main stream.


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What are drainage patterns

what is a drainage pattern

The Radial Drainage Pattern: This drainage pattern develops when a number of streams radiate from a central high region in all directions like the spokes of a wheel. The subsequent streams find it easier to erode the concentric, less resistant strata. The streams emerge from the surrounding uplands. During the last , the was scraped off, leaving mostly bare rock. Discordant drainage patterns are classified into two main types: and superimposed, while anteposition drainage patterns combine the two.

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4 Common Types of Drainage Patterns

what is a drainage pattern

This results from a partial adaptation to an underground circular struc-ture; a dome like igneous intrusion batholith. There are ways to build in subterrainean drainage features, too. Such patterns are develĀ­oped in the area of simple folds characterised by parallel anticlinal ridges alternated by parallel synclinal valleys. The total area occupied by a drainage system is known as its drainage basin. The differential erosion of hard and soft rock beds results in the truncation of the beds which produces ringed belted structure wherein relatively resistant beds project outward whereas the weaker soft beds form circular clefts. Due to the northward slope of the Peninsula towards the Great Plains, the rivers originating from the Vindhyan and the Satpura ranges flow northward into the Ganga system.

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What is drainage pattern? explain any two patterns formed by the river.

what is a drainage pattern

The small and swift rivers originating in the Western Ghats and discharging their water into the Arabian Sea provide a good example of parallel drainage pattern in India. Radial Pattern It is a pattern characterised by out flowing rivers, away from a central point, analogous with the spokes of a wheel. Salt flats are created in these dry lake beds as salt dissolved in the lake water precipitates out of solution and is left behind when the water evaporates away. Rock and sand don't really hold water and will drain it effectively. The Kathmandu valley of Nepal presents an ideal example of centripetal drainage pattern wherein the tributary streams of the Baghmati converge in the tectonically formed circular basin.

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What is DRAINAGE PATTERNS? definition of DRAINAGE PATTERNS (Science Dictionary)

what is a drainage pattern

It happens in areas where there has been much geological disruption. The master conseĀ­quent gradually but slowly lengthens its longitudinal course through headward erosion. Determined by the existing rocks and superficial deposits in youthful systems but in more mature, often by strata subsequendy removed. Though denĀ­dritic pattern is independent of structural and lithological controls but almost uniform lithology presence of same type of rocks in extensive area presents most ideal condition for the development of dendritic drainĀ­age pattern. This pattern is more frequently develĀ­oped on uniformly sloping and dipping rock beds such as cuestas or newly emerged coastal plains.

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Types of Drainage Patterns

what is a drainage pattern

These tributaries enter the main river at approximately 90 degree angle, causing a trellis-like appearance of the drainage system. Whatfollows from that event is inevitable, often tragedy. In an annular drainage pattern streams follow a roughly circular or concentric path along a belt of weak rock, resembling in plan a ringlike pattern. He'll have the equipment and the expertise to handle this. Flush right- 2 or more lines of type ending flush right 7. Perhaps it's somewhere i ā€¦ n between.

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