Nicolas steno relative dating profile example online dating
Hutton thought that the intermediate rock layers eroded away before the more recent rock layers were deposited.
Hutton’s discovery was a very important event in geology!
This scenario led him to develop the principles that are discussed below. Steno’s laws are illustrated below in (Figure below). New rock layers are always deposited on top of existing rock layers. They may cover very broad areas, especially if they formed at the bottom of ancient seas.Among the principal subdisciplines of historical geology is stratigraphy, the study of rock layers, which are called strata or, in the singular form, a stratum.Other important subdisciplines include geochronology, the study of Earth's age and the dating of specific formations in terms of geologic time; sedimentology, the study and interpretation of sediments, including sedimentary processes and formations; paleontology, the study of fossilized plants and animals; and paleoecology, the study of the relationship between prehistoric plants and animals and their environments.You can clearly see the same rock layers on opposite sides of the canyon.The matching rock layers were deposited at the same time, so they are the same age.