The process of determining whether an object or event is describe how relative dating of fossils are determined or younger than other objects or events. The principle that states that younger rocks lie above older rocks if the layers have not been disturbed.
States that geologic processes in the past can be explained by current geologic processes.
It’s based either on fossils which are recognized to represent a particular interval of time, or on radioactive decay of specific isotopes. Based on the Rule of Superposition, certain organisms clearly lived before others, during certain geologic times.
Say for example that a volcanic dike, or a fault, cuts across several sedimentary layers, or maybe through another volcanic rock type.Chat or rant, adult content, spam, insulting other members, show more.Harm to minors, violence or threats, harassment or privacy invasion, impersonation or misrepresentation, fraud or phishing, show more. As a member, you'll also get unlimited access to over 70, lessons in math, English, science, history, and more.Plus, get practice tests, quizzes, and personalized coaching to help you succeed.