When correlating rock between widely separated areas or between continents, what feature(s)do geologists rely on the most to link distant rock units of similar age?
A)Rock type
B)Sedimentary structures
C)Fossils
D)Mineral content

Question

Quizplus · Accepted Answer

Geologists rely on fossils the most to link distant rock units of similar age because they are unique to specific time periods and can be used to identify when the rocks were deposited. Rock type and mineral content can vary within the same time period and sedimentary structures can be altered or destroyed over time, making fossils the most reliable indicator of age correlation.

When Correlating Rock Between Widely Separated Areas or Between Continents