Why would geologic mapping be difficult in an area dominated by accreted terranes?

A) The geology is so similar that it would be difficult to determine terrane boundaries
B) Each terrane is geologically distinct, but also highly deformed
C) Isostatic rebound would result in gravitational collapse to make them indistinct
D) Terranes are very old and terribly eroded


Answer: B

Environmental & Atmospheric Sciences

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