Who explained that the geological processes seen happening on earth now have shaped Earths geological features over long periods of time?
Charles Lyell explained this process with his theory of uniformitarianism.
Geological evolution refers to how geological processes such as sedimentation, mineral deposition, erosion, and orogeny modify geological features over time, altering the fundamental environment and producing new landscapes. Organic (or biological) evolution refers to how biological processes such as germ-line mutation, natural selection, genetic drift, and gene flow modify biological features over successive generations, differentiating populations and producing new species.
There isn't really such a thing as "geologic evolution". Geology describes processes by which geological features may form or alter, but these are not in any way even remotely similar to the processes by which lifeforms develop over time. The changes wrought by geological processes can be (summarily) described in terms of mechanical forces acting on a single body of mixed composition; the processes involved in evolution require populations of self-replicating organisms. So really, they…