1 / 6

Laws of Geologic History

Laws of Geologic History. Law of Superposition . The oldest layer is at the bottom and the youngest layer is at the top. Law of Crosscutting - In a series of horizontal sedimentary beds, if there is an inclusion which cuts vertically through them, it must be younger than the sediment beds.

denton
Download Presentation

Laws of Geologic History

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Laws of Geologic History

  2. Law of Superposition • The oldest layer is at the bottom and the youngest layer is at the top.

  3. Law of Crosscutting - In a series of horizontal sedimentary beds, if there is an inclusion which cuts vertically through them, it must be younger than the sediment beds.

  4. Law of Inclusions - The intruding rock (Rock A) must have been there first to provide the fragments in the younger rock (Rock B)

  5. Law of Unconformities • A gap in the geological record that is formed by erosion of an area.

  6. Law of Uniformitarianism • the natural processes operating in the past are the same as those that can be observed operating in the present. • "The present is the key to the past."

More Related