What is a branch of stratigraphy which uses features of rock layers to What is the layering of rocks from old to new? What are created when pre-existing rocks are exposed to heat and press?

Geology 102 Lecture 4 Notes Relative and Absolute Dating Methods ● Relative Dating ○ Stratigraphic principles are very useful for figuring out the order in which rock layers were formed, folded, faulted, etc ○ Most of the geologic time scale was reconstructed this way ● Lithostratigraphy ○ A branch of stratigraphy which uses features of rock layers to perform geologic correlations ○ Steno’s 3 laws, Principle of Cross-Cutting Relationships, Principle of Included Fragments ● Cross Sections ○ The layering of rocks (from old to new) ● Biostratigraphy ○ A branch of stratigraphy which uses fossils to perform geolo