@ Mahnmut: What I hope to make is the ice coming in an Ice Age developing over relatively flat ground (Netherlands), pushing the ground forward into morenes (if this is the right word), like this next iteration.
I wouldn't know (wasn't there at the time) if the land would be frozen and snowed over all the time, or tundra like with just the ice moving over it as a sort of glacier. I also don't know if the ice would dive deep into the soil and thus spilling rocks and debris over the moving edge, and if the edges would be smooth, with occasional pieces breaking off when hitting hard round, or steep, like in todays glaciers where they melt at the low end.
I still need to get rocks and debris into the ice itself, perhaps in a bit layer like formations. At least I think that would be the case. Perhaps the end of this ice flow would be a rough mixture of ice, and soil, not as 'seperated' as here.