I've seen exfoliating granite up in the high country above Yosemite that looks sedimentary as well. I wonder if this is volcanic based?
We probably will not know until we get there.
It might be some mechanism that we are unaware of.
It looks like private space flight companies are our best hope.
Granite is an *intrusive* igneous rock. Meaning it crystallized underground very slowly such that visible crystals had time to develop. ie, it does not flow unto the surface in layers. However, within its magma chamber it can flow or even settle into discrete layers, via heavier crystals sinking. But I don't think neither would at all resemble that stack on Mars.
The exfoliation of granite (curved sheets of granite peeling off like layers of an onion) occurs due to the expansion of the granite as a result of it still "rebounding" from the weight of the once overlying glaciers, and/or weight of the once overlying rock mass (aka, isostatic rebound).