What are the four principles that Nicolas Steno described regarding relative dating of strata?

Stenos laws of stratigraphy describe the patterns in which rock layers are deposited. The four laws are the law of superposition, law of original horizontality, law of cross-cutting relationships, and law of lateral continuity. Nicolaus Steno was a 17th-century Danish geologist.

How do you read relative dating?

0:144:10Laws of Relative Rock Dating - YouTubeYouTube