Presentation on theme: "Landscapes of New York Virtual Field Trip By Nick D’Anna Photos courtesy of Gail & Bret Bennington, A. Orgonik, & myself."— Presentation transcript:
Landscapes of New York Virtual Field Trip By Nick D’Anna Photos courtesy of Gail & Bret Bennington, A. Orgonik, & myself
What are landscapes? 3 Major Classifications: Mountains Plains / Lowlands Plateaus / Uplands
New York has all three! Notice the Catskills are part of a plateau, and are not really mountains
Mountains / Highlands At least 300 meters above the surrounding land. Created by a tectonic collision between two landmasses (Orogeny). Characterized by distorted rock structures (metamorphic bedrock): a result of the pressures applied during collision.
Plains / Lowlands Large areas of flat land at low elevations. Lots of gravel, sand and clay. HOME SWEET HOME!
Plateau / Uplands Large areas of flat land at high elevation. Usually flat, horizontal, sedimentary rock structures.
Check your note sheet now Landscapes MountainsPlateausPlains
Stop Here! The rocks around the room are from all over NY. Describe them as best you can. What are the clues in the rock that we can use to answer: Igneous, Sedimentary, Metamorphic? Environment of formation? Fossils? Mineral Composition?
Landforms are the result of the interaction of tectonic forces and the processes of weathering, erosion, and deposition.
During the Devonian the western parts of NY are underwater. The Acadian orogeny occurs mostly to the North (Maine, Newfoundland, Greenland, etc…). The rising of those mountains produced a lot of erosion of the softer surface sedimentary rocks and the Catskill delta was formed.