What Makes River Rock Round?
Published: Monday, 17 March 2014 15:44
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. Does this grinding reduce the size of rocks significantly, or is it that smaller rocks are simply more easily transported downstream?
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Published: Thursday, 16 January 2014 15:24
I have been covering the aggregates industry for the better part of the past 25 years, and over the lion’s share of that time period, there has always been one thing you could totally count on: Frank Cargould.
Read more: Frankly Speaking