Streetwise Posted August 18, 2021 Share Posted August 18, 2021 I have been thinking a lot about how substrate exists in nature, especially with gravel vs sand. My hobby context is with organic soil underneath, where I prefer gravel as a cap, but I don’t want to be too specific. I grew up on Lake Champlain, which has some of the oldest former reefs in the world, from when it was the Champlain Sea. However, there are very few sandy beaches on the lake. The two big ones are Sandbar State Park on the Vermont side, fed by the Lamoille River, and Ausable Point on the New York side, both cases where the rivers have been depositing sand for millennia. In the marine environment, we expect tons of flow, grinding down rocks and coral. Freshwater seems to have more conditions. 1 Link to comment Share on other sites More sharing options...
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