You Observe Two Shale Beds Separated by 300 Kilometers

Multiple Choice

You observe two shale beds separated by 300 kilometers. The rocks in the two shale beds are similar, but one bed is several million years older than the other. You can conclude both beds ____.

A) are time-correlated
B) contain the same guide fossils
C) are lithologically correlated
D) are time correlated and contain the same guide fossils
E) are unrelated