Which of the following is used by geologists to determine the relative ages in a rock sequence?
A)cross-cutting relations
B)fossils
C)stratigraphy
D)all of the above

Question

Quizplus · Accepted Answer

All of the options listed are methods used by geologists to determine the relative ages of rocks in a sequence. Cross-cutting relations help geologists understand the sequence of geological events by determining that the geological feature which cuts another is the younger of the two. Fossils within rock layers can be used to correlate the age of those layers with layers elsewhere that contain the same fossils (biostratigraphy). Stratigraphy involves studying the layering of rocks (strata) to determine the sequence of events that led to their deposition.

Which of the Following Is Used by Geologists to Determine