On: The Great Unconformity: Research points to glacier...

[mynegation]

Thank you! So I get it that glaciers eroded miles of rock from the surface. But where is all that material? Was it moved to the mounds elsewhere? (where?). Was it ground into gravel, dust or silt and washed into the ocean?

[cbkeller → mynegation]

Ground up and washed into the ocean -- and then ultimately subducted and made into new magmas!