Relative Age Flashcard

Front

The Law of Superposition helps scientists to determine what?

Back

The relative age of rock layers

Front

According to the law of superposition, where are the oldest fossils found?

Back

Near the bottom of the rock layers

Front

Which rock layer in the diagram seems to be the oldest?

Back

A

Front

This rock was formed by smaller pieces of rock that settled at the bottom of a lake millions of years ago. What type of rock is this?

Back

Sedimentary

Front

The ________ states that layers of sediment were originally deposited horizontally under the action of gravity.

Back

law of horizontality 

Front

Which of the following is the oldest? Layer L, Intrusion D, Intrusion H, Layer E

Back

Layer E

Front

Which of the following correctly lists the layers in order from oldest to youngest? Options: A, B, C, D, E, E, B, C, D, A, E, D, C, B, A, C, B, A, D, E

Back

E, B, C, D, A

Front

The rock formation labeled "P" is a(n)...

Back

intrusion

Front

Letter "F" is a....

Back

fault

Front

In this rock layer diagram there are two unconformities, a fault at E and an intrusion at D. Which unconformity occurred first?  How do you know?

Back

Intrusion D occurred first because the instrusion has been moved by the fault.