I Think that the order of the strata, from newest to oldest is 3, 1, 6, 5, 4, 2. I know that layer 4 is older than layer 6 because of the principal of superposition. I know that layer 3 is the newest because of cross-cutting relationships, 3 being the intrusion. I think that 2 is the oldest because even though it goes up past some other layers, it does not come all the way to the surface, and it originates at the very bottom. I also know that layer 1 is newer than layer 5 because of the principal of superposition.
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