Principal of cross cutting relationships

Front

What does the Law of Superposition state?

Back

In an undisturbed sequence of rock layers, younger rocks lie above older rocks.

Front

What is the Principle of Superposition?

Back

The principle that the oldest layer will be at the bottom in an undisturbed sequence of rock layers.

Front

What is the youngest layer in a rock outcrop labeled A, B, C, D?

Back

Layer A is the youngest.

Front

What does the Principle of Cross-Cutting Relationships state?

Back

An igneous intrusion is always younger than the layers it cuts across.

Front

What is a fault in geological terms?

Back

A fault is a fracture in the Earth's crust along which movement has occurred.

Front

Define 'inclusion' in geology.

Back

An inclusion is a piece of rock that is contained within another rock.

Front

What is an igneous intrusion?

Back

An igneous intrusion is a body of igneous rock that has crystallized from molten magma beneath the Earth's surface.

Front

What is an unconformity?

Back

An unconformity is a surface that represents a gap in the geological record, where rock layers have been eroded or not deposited.

Front

What is relative dating?

Back

Relative dating is the method of determining the age of rocks or fossils in relation to other rocks or fossils.

Front

What is the significance of cross-cutting relationships in geology?

Back

Cross-cutting relationships help determine the relative ages of rock layers and geological features.