Geomorphological settings for waterfalls | Classification for falls
Geomorphological settings for waterfalls, Classification for falls.
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Types of Geomorphological Settings for Waterfalls.
This is an online quize for types of geomorphological Settings at which waterfalls occur
hanging tributary
Landslide Dam
Lava Dam
Fault Scarp
Uplift
Stream Capture
Moraine Dam
Hanging Valley
Wave-cut cliff
Continental Glaciation
Waterfalls Due to Upliftment:
Waterfalls of varying dimensions are formed due to upliftment of local nature in the courses of the rivers. These waterfalls are obliterated when the rivers regrade their longitudinal profiles.
Hanging Valley Falls:
Sometimes, waterfalls of varying dimensions arc formed when the tributary streams join their master streams from great height forming hanging valleys (fig. 18.6). In other words, hanging valley falls are formed when the level of the junction of the tributary streams is much higher than the level of the main valley of the master stream.
Glacial Hanging Valley Falls:
The fluvial originated river valleys are largely modified by glaciers during ice ages. The glaciers flowing through the main valleys deepen them more due to erosion than the tributary valleys. Thus, the tributary valleys hang over the main valleys and discordant levels are formed.
Waterfalls Due to River Capture:
Knickpoint Falls:
The breaks in channel gradient caused by rejuvenation (either due to upliftment or fall in sea level) are called knick points or heads of rejuvenation. These breaks in channel gradient or knickpoints denote sudden drops of elevation in the longitudinal profile of the rivers and allow the water to fall down vertically giving birth to waterfalls of varying dimensions.
Sometimes, waterfalls are formed when the streams flowing over higher but flat lands are captured by the streams of relatively lower height. Thus, the captured streams drain into the captor streams by making waterfalls. Lava –dammed waterfalls:
Sometimes the flow of river water is obstructed due to formation of lava barrier across the valley. This falls are almost permanent.Falls due to glacial morains:
Moraine dammed waterfalls are formed due to damming of river flow by morainic debris. This type of river makes falls while crossing through the morainic ridges formed across the valleys.
hanging tributary,
Landslide Dam,
Lava Dam,
Fault Scarp,
Uplift,
Stream Capture,
Moraine Dam,
Hanging Valley,
Wave-cut cliff,
Continental Glaciation,
