Posted: Nov 04, 2018 3:27 pm
by Adco
In the 3rd picture, the one with the hollows: were the hollows formed through water erosion? I can see clearly that those hollows only formed below the old water line, i.e. where soil retained water. There are no hollows above ground. Also, at depths greater than where the water would sit, there are no hollows and it looks the same as the rock above the ground line. That tells me that water sitting in soil against the rock face would react with the white chips and erode them through some chemical process.