Relative Dating Answers

In which situation is the principle of cross-cutting relationships useful in determining relative age?

This diagram shows rock formations forming.

The image shows sedimentary rock layers with index fossils and a fault.

A geologist finds four layers of sedimentary rock. She determines that no geologic events have shifted the layers. She labels the layers A, B, C, and D from the top to the bottom.Which statement about these layers is accurate?

Which statement explains one reason why unconformities occur?

A scientist finds a fossil that she thinks might make a good index fossil.Which characteristic does this fossil most likely have?

The diagram shows horizontal rock layers.

A geologist finds some tilted sedimentary rock layers.Which conclusion can the geologist draw by looking at the rock layers?

Which feature forms at Earth’s surface from the cooling of lava?

Which characteristic is shared by intrusions and faults?

Which correctly lists three different geologic features that help scientists determine the relative ages of rocks by their positions?