Law of Superposition

Front

What is the Law of Superposition?

Back

The Law of Superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest layers are at the top.

Front

Which rock layer is typically the oldest in a sequence?

Back

The oldest rock layer is typically the one at the bottom of the sequence.

Front

According to the Law of Superposition, where are the youngest fossils found?

Back

The youngest fossils are found near the top of the rock layers.

Front

What does the Law of Superposition help geologists determine?

Back

It helps geologists determine the relative ages of rock layers and the fossils within them.

Front

If Layer A is above Layer B, which layer is younger?

Back

Layer A is younger than Layer B.

Front

What is a sedimentary rock?

Back

Sedimentary rock is a type of rock formed by the accumulation and compaction of mineral and organic particles.

Front

What is an example of a fossil found in sedimentary rock?

Back

Examples include ammonites, trilobites, and plant fossils.

Front

How can the Law of Superposition be applied in archaeology?

Back

It can be used to date artifacts and understand the sequence of human activity at a site.

Front

What is the significance of the bottom layer in a rock formation?

Back

The bottom layer is significant because it is the oldest and can provide information about the Earth's history.

Front

What is a geological time scale?

Back

A geological time scale is a system of chronological dating that relates geological strata to time.