Lakes downstream of glaciers are sometimes colored bright blue as a result of suspended sediments called glacial flour.

Question

Quizplus · Accepted Answer

Glacial flour refers to finely ground rock particles that are created by glaciers grinding and scraping against the bedrock. These particles can be so fine that they remain suspended in the water, giving it a bright blue color. Lakes downstream of glaciers often have this blue color due to the presence of glacial flour in the water.

Lakes Downstream of Glaciers Are Sometimes Colored Bright Blue as a Result