In this image, we see two rock towers that appear to express the same sequences of sediments. Using the ________, young geologists can infer that these separated layers were once joined as one larger layer.

Here, relative ages of sedimentary rock strata are extrapolated using assemblages of fossils that are expressed in individual layers. What principle of stratigraphy is used to make these inferences?

Using your newfound skills involving the principles of stratigraphy, order the geologic sequence of events from oldest to youngest using the associated letter codes (e.g. C → A → B → E → D).

Lithostratigraphy, biostratigraphy, and chronostratigraphy are three related subfields of stratigraphy.

This Catholic priest and scientist established three principles relating to sedimentary rock strata during the 17th-century giving rise to the modern field of stratigraphy.

Average American consumers can thank the work of geologists studying the stratigraphy of sediments in finding this popular commodity.