Which statements best describe the steps geologists follow to compare rock layers at distant locations? Select three options.
Find the absolute age of rocks at both locations.
Give a relative age to a layer at one location.
Compare a layer at one location to layers at other locations.
Identify index fossils in one or more layers at one location.
Collect fossils from different locations to study the organisms’ lifestyles.
Answers
Terms in this set (14)
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?
B is younger than D.
Which phrases describe organisms that formed index fossils? Check all that apply.
Are extinct
Had hard parts
Were alive only for a short time
This diagram shows rock formations forming.
Which statements describe formations 1 and 2? Check all that apply.
Formation 2 is an intrusion.
Formation 1 is an extrusion.
Formations 1 and 2 are igneous rock.
How do index fossils help scientists?
They aid in comparison of rock layers at distant locations.
A geologist finds some tilted sedimentary rock layers.
Which conclusions can the geologist draw by looking at the rock layers? Check all that apply.
They were tilted after they were deposited.
They were originally deposited horizontally.
Their relative ages have not changed even though they are tilted.
The diagram shows horizontal rock layers.
Which statements are accurate? Check all that apply.
Layer C is younger than layer A.
Layer B is younger than layer A but older than layer D.
Which geologic features help scientists determine the relative ages of rocks by their positions? Check all that apply.
Intrusions
Index fossils
Cross-cutting relationships
The image shows sedimentary rock layers with index fossils and a fault.
Which statement accurately describes the rock layers?
Layer 2 and layer 9 are the same relative age.
Which statements explain reasons why unconformities occur? Check all that apply.
Rocks erode and sediment is deposited.
No sediment is deposited over a long time.
Explanation:
mark me brainlist plzzzzzzz