Which type of unconformity would generally indicate the greatest amount of erosion prior to deposition of the overlying rocks?
A)nonconformity
B)angular unconformity
C)disconformity
D)buttress unconformity

Question

Quizplus · Accepted Answer

A nonconformity represents the greatest amount of erosion because it forms when sedimentary rocks are deposited on top of igneous or metamorphic rocks, indicating a significant gap in the geologic record.

Which Type of Unconformity Would Generally Indicate the Greatest Amount