Rock & Fossil Correlation/Relative Dating

Front

Relative dating of rock layers tells us that the deeper we dig, _______.

Back

the older the rocks get.

Front

An ordered arrangement of rock layers that is based on the relative ages of the rocks is called a _______.

Back

Geologic Column.

Front

The Principle of Cross-Cutting Relationships states that an igneous intrusion is _______.

Back

always younger than the layers it cuts across.

Front

A piece of an older rock that becomes part of a new rock is called an _______.

Back

inclusion.

Front

If you wanted to get the most exact age of a fossil, which would you use? _______.

Back

absolute dating.

Front

What is the term for the process of determining the relative order of past events? _______.

Back

Relative dating.

Front

What principle states that in undisturbed rock layers, the oldest rocks are at the bottom? _______.

Back

Law of Superposition.

Front

What is the term for a gap in the geological record? _______.

Back

Unconformity.

Front

What is the term for the matching of rock layers from different locations? _______.

Back

Correlation.

Front

What type of dating provides a numerical age for rocks and fossils? _______.

Back

Absolute dating.