How does the law of crosscutting relationships help determine the areas history?


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The Law of Superposition states that strata that are younger will be deposited on top of strata that are older, normally. The Law of Cross-Cutting Relationships provides another way of establishing relative age. The Law states that where structure A cuts structure B, structure B (the one being cut) is older than structure A (the one doing the cutting). ChaCha on!

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Sometimes magma pushes, or intrudes, into cracks in existing rocks. When the melted rock cools and solidifies, the resulting feature is called an igneous intrusion. More? ChaCha for now!

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