stratigraphystratigraphy and seismic stratigraphy. Marine Transgression and Marine Regression,eustatic sea level changes

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litteacher8 eNotes educator| Certified Educator

Stratigraphy is a branch of geology that involves studying rock layers and stratification.  It usually involves the study of sedimentary rocks and volcanic rocks.  These scientists might study them under the ocean or above on dry land.

blacksmoker | Student

Why does the apparent hiatus vary over a wide region?

isaxgrl | Student

what is the question?

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