the lowest point a stream will erode is known as intermediate high point.
the lowest point a stream will erode is known as intermediate high point.
the lowest point a stream will erode is known as?
intermediate high point
downcutting, also called erosional downcutting, downward erosion or vertical erosion is a geological process by hydraulic action that deepens the channel of a stream or valley by removing material from the stream's bed or the valley's floor. the speed of downcutting depends on the stream's "base level", the lowest point to which the stream can erode. sea level is the ultimate base level, but many streams have a higher "temporary" base level because they empty into another body of water that is above sea level or encounter bedrock that resists erosion. a concurrent process called lateral erosion refers to the widening of a stream channel or valley. when a stream is high above its base level, downcutting will take place faster than lateral erosion; but as the level of the stream approaches its base level, the rate of lateral erosion increases. this is why streams in mountainous areas tend to be narrow and swift, forming v-shaped valleys, while streams in lowland areas tend to be wide and slow-moving, with valleys that are correspondingly wide and flat-bottomed. the term "gradient" refers to the elevation of a stream relative to its base level. the steeper the gradient, the faster the stream flows. sometimes geological uplift will increase the gradient of a stream even while the stream downcuts toward its base level, a process called "rejuvenation." this happened in the case of the colorado river in the western united states, resulting in the process that created the grand canyon.
downcutting
bullet::::- lowest point (natural, under water). calypso deep, greece (5,267 metres; 17,280 feet below sea level).









































bullet::::- lowest point (natural, underground). dependent upon the definition of europe: either krubera cave, abkhazia, georgia (2196 metres; 7205 feet below surface) (also the deepest cave of the world) or lamprechtsofen, austria (1,632 metres; 5,354 feet below surface).









































bullet::::- lowest point (artificial, with open sky). hambach surface mine (open-pit mine), germany (293 metres; 961 feet below sea level). also deepest of the world.









































bullet::::- lowest point (artificial, underground). kola superdeep borehole, russia (12,262 metres; 40,230 feet below surface). also deepest of the world.
extreme points of europe