1. Landscapes of New York

2. What are landscapes? 3 Major Classifications: Mountains / Highlands Plains / Lowlands Plateaus / Uplands  are the visible features of Earth’s surface where the atmosphere, hydrosphere & lithosphere meet.

3. New York has all three! Notice the Catskills are part of a plateau, and are not really mountains

4.  All Landscapes consist of 3 major types 1.Mountains(Highlands)  High elevation compared to surrounding areas, or sea level (at least 300m high)  Created by tectonic plates colliding (Orogeny)  Distorted rock layers (folds, tilt, faults)  Sharp changes in slope  Often non-sedimentary rock

6. 2.Plateaus (Uplands)  High elevations above sea level  Undistorted rock layers (flat bedrock)  Undistorted = Horizontal  Mostly Sedimentary Rock  Streams may have cut steep slopes (ex. Grand Canyon) Plateau b/t Rocky Mts. & West Coast

7. Plateau / Uplands

8. Which is a plateau & which is a mountain? Both Plateaus….why? Bedrock is Horizontal Layers  What’s the rolling surface on B from?  Water Erosion

9. Which is a Mt. & Plateau? B = Mountain (folded layers)  Which is an Arid Climate & which is a humid climate?  B = Humid: rounded slopes from water  A = Arid: slopes are steep, not rounded

10. 3.Plains (Lowlands)  Low elevations  Level surface with little change in slope  Often horizontal rock structure  Lots of sand, gravels, clays

11. Landforms are the result of the interaction of tectonic forces and the processes of weathering, erosion, and deposition.

12.  Landscape Development

17. Landscape Development Summary Landscape regions are determined by: Bedrock structure and elevation Landscape development is determined by: –Amount of uplifting forces compared to leveling forces. Landscape region formed when uplift is greater than erosion: Mountains Landscape region formed when erosion is greater than uplift: Plains