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What is the geologic process by which waterfalls are formed?

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Imagine a river flowing. I don't know how much you know about rivers, but in Geography we learn that a river can be divided into three sections: upper course, middle course and lower course. read more

Through a process known as abrasion, which is the erosion of rock surfaces due to friction between the rocks and moving particles carried by the river, a drop starts to develop. The vertical drop forms gradually as more and more of the soft rock gets eroded and carried downstream. read more

Waterfalls form in rivers that are young. This is due to the channel being deep and narrow to allow for the formation of the waterfall. Generally, waterfalls form in the upper course of a river. This is where a layer of hard rock lies next to a layer of soft rock. read more

Having established what constitutes a waterfall and what types of waterfalls can exist, we're now in a position to discuss how geology influences how waterfalls are formed. Waterfall formation is based around the basic principle that there is a watercourse (realize that water is an erosive agent) traversing over different layers of rock each with different rates of erosion. read more

Waterfalls are spectacular displays of the beauty and power of nature. The highest waterfall in the world is Angel Falls in Venezuela at a height of over 3000 feet. We will explore how waterfalls are formed and the processes behind such formations. read more

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What is the geologic process by which waterfalls are ...
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