8Principle of Uniformitarianism States that the same processes that operate today operated in the past.All the types of weathering and erosion we’ve studied that occur today have ALWAYS BEEN OCCURRING since the beginning of the Earth.A principle is basically a LAW (description of how nature works).
9Deposition and the Weathering-Erosion-Deposition Cycle (WED Cycle)
10What is Deposition? START WIND EROSION FINISH DEPOSITION The process in which sediment is laid down in new locations.WINDEROSIONFINISHSTARTDEPOSITION
13What causes Deposition? All the types of erosion: water, wind, gravity, etc.
14What is the WED cycle?The Cycle of Weathering, Erosion, and Deposition that occurs now and has been occurring all around the world at all times.Because of this cycle, the Earth’s surface has changed greatly over time.It is what fills in lakes, shortens mountains, made the grand canyon, etc.
21The Appalachian mountains are the oldest mountains in the world. They were formed300 million years ago. The Rocky Mountainswere formed between 65 and 100 million yearsago. The highest part of the AppalachianMountains is Mt. Mitchell (in North Carolina) at6,684 ft. The highest part of The RockyMountains is Mt. Elbert (in Colorado) at14,440 ft. Can you explain why?