The Principle of Original Horizontality States That Each

question 163

Multiple Choice

The principle of original horizontality states that each

• A)sedimentary layer is older than the layer above.
• B)sedimentary layer is younger than the layer above.
• C)new layer of sediment is laid down nearly horizontally over older sediment.
• D)new layer of sediment is laid down accordingly.

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Definitions:

Nonfoliated Metamorphic Rock

Metamorphic rocks that do not exhibit a layered or banded appearance as a result of their mineral grains being arranged randomly.

Hornfels

A fine-grained, nonfoliated metamorphic rock, typically formed by contact metamorphism of nearly any kind of starting rock.

Igneous Intrusion

The process and resultant feature where magma cuts through pre-existing rock layers, cooling and solidifying underground.

Anticline

A geological feature characterized by a convex fold in rock layers that arches upward, often associated with oil reserves.