Which of the Following Geologic Principle Is Directly Applicable to an Igneous

question 27

Multiple Choice

Which of the following geologic principle is directly applicable to an igneous dike found in the Grand Canyon that intrudes over older rocks?

• A) The principle of superposition states that a rock must first exist before it can be intruded by a dike
• B) The principle of crosscutting relationships states that a rock must first exist before it can be intruded by a dike
• C) The principle of original horizontality states that a rock must first exist before it can be intruded by a dike
• D) The principle of included fragments states that a rock must first exist before it can be intruded by a dike
• E) The principle of faunal succession states that a rock must first exist before it can be intruded by a dike

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