Making River Rock Round
- Published: Friday, 14 February 2014 18:12
- Written by Mark Kuhar
February 14, 2014 – Here is some interesting research. For centuries, geologists have recognized that the rocks that line riverbeds tend to be smaller and rounder further downstream. But these experts have not agreed on the reason these patterns exist. Abrasion causes rocks to grind down and become rounder as they are transported down the river.