EARTHSC 1122 Lecture Notes - Lecture 8: Hadean, Lithostratigraphy, Unconformity

• School: Ohio State University
• Department: Earth Sciences
• Course: EARTHSC 1122
• Professor: Babcock Loren Edward

Document Summary

Good source for geologic time scale practice: http://www. geosci. ipfw. edu/gildner/timescalepractice. html. Geologic time scale: the calendar of earth history. Eons (from earliest to youngest): oldest: hadean. Stratigraphy: study of layered rocks and sediments, based on steno"s principles (+ additions of hutton, lyell, smith) Correlation: matching of strata from one location to another: rocks can be matched from one place to another by any characteristic. Examples: lithology (rock type, color, fossils, unconformities, geophysical characteristics (such as radioactivity levels, numerical age estimate. Lithostratigraphy: correlation of rock-stratigraphic units based on lithology (rock type)