Drainage Pattern Flashcards
What are drainage patterns?
Drainage patterns are the patterns formed by streams, rivers, and lakes in a particular drainage basin
what is a drainage basin?
A drainage basin is an area of land where all flowing surface water converges to a single point, or flows into another body of water
what is a watershed?
A watershed refers to an area of land that comprises a set of streams or rivers that drain into a larger water body like an ocean or a river.
what are the types of drainage patterns?
Dendritic patterns
Trellis drainage
Rectangular patterns
Radial drainage
what is a dendritic drainage pattern?
A dendritic drainage pattern is a drainage pattern that looks like the branching pattern of tree roots
what are examples of dendritic pattern?
granite, gneiss, volcanic rock, and sedimentary rock that has not been folded.
what is a trellis drainage pattern?
A trellis drainage pattern is a drainage pattern in which tributaries join at high angles, often approaching right angles
where do rectangular drainage patterns develop?
Rectangular patterns develop in areas with very little topography and a system of bedding planes, fractures, or faults that form a rectangular network
what is a radial drainage pattern?
radial drainage pattern is drainage pattern in which consequent streams radiate or diverge outward from a high central area
where are radial drainage patterns formed?
Radial drainage pattern is formed on dome shaped hill, conical hill, mesa or butte
what is a confluence?
the point at which two rivers join
what are some factors that affect infiltration of water?
The amount of precipitation
Porous nature
Rate of evaporation
The extent of vegetation covering
what are some underground water features?
Water table
Aquifers
Wells and artesian basins
Springs
what is the water table?
The water table is the level below which the pores of permeable rocks are saturated
Where do dendritic drainage patterns develop?
Dendritic drainage patterns develop in areas where the rock has no particular fabric or structure and can be eroded equally easily in all directions.
