Incremental dating techniques allow the construction of year-by-year annual chronologies, which can be fixed i. Geology 25 4:
Geology Geological time age chron eon epoch era period Geochronology Geological history of Earth. Chronostratigraphy Geochronology Isotope geochemistry Law of superposition Luminescence dating Samarium—neodymium dating. Canadian Journal of Earth Sciences. The second method is used for the folded areas where tectonic rotations are possible. Two methods of paleomagnetic dating have been suggested 1 Angular method and 2 Rotation method.