 |
| Previous Image | Next Image |
| Description: Historical Notes Catastrophism Landscape developed by catastrophes James Ussher, mid-1600s, concluded Earth was only a few thousand years old Modern geology Uniformitarianism Fundamental principle of geology “The present is the key to the past” Modern geology James Hutton Theory of the Earth Published in the late 1700s Placing rocks and events in sequence Principles and rules of Law of superposition – oldest rocks are on the bottom Principle of original horizontality – sediment is deposited horizontally Principle of cross-cutting relationships – younger feature cuts through an older feature Picture Stats: Views: 243 Filesize: 3.18MB Height: 921 Width: 1343 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39570 |