rock sequencing

Front

What is the Law of Superposition?

Back

The Law of Superposition states that in undisturbed rock layers, younger rocks lie above older rocks.

Front

What is Relative Dating?

Back

Relative Dating is a method used to determine the age of rocks and fossils in relation to one another, without determining their exact age.

Front

What does an Unconformity represent in geology?

Back

An Unconformity represents a gap in the geological record, indicating that rock layers have been eroded or not deposited for a period of time.

Front

How can you determine which rock layer is the oldest?

Back

The oldest rock layer is typically found at the bottom of a sequence of undisturbed layers.

Front

What is a Fault in geological terms?

Back

A Fault is a fracture or zone of fractures between two blocks of rock, which can cause displacement.

Front

What is an Intrusion in geology?

Back

An Intrusion is a body of igneous rock that forms when magma cools and solidifies within pre-existing rock layers.

Front

How do you order rock layers from oldest to youngest?

Back

To order rock layers from oldest to youngest, start from the bottom layer and move upwards, following the Law of Superposition.

Front

What is the significance of the term 'strata'?

Back

Strata refers to layers of sedimentary rock or soil with internally consistent characteristics that distinguish them from other layers.

Front

What is the difference between a Fault and an Intrusion?

Back

A Fault is a break in the Earth's crust where movement has occurred, while an Intrusion is molten rock that has cooled and solidified within existing rock layers.

Front

What does the term 'geological time scale' refer to?

Back

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