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13 Φεβ 2012 · This slide show describes the theory of plate tectonics and explains how the interaction of tectonic plates changes the surface of our earth. This document discusses three main types of plate boundaries: divergent boundaries, convergent boundaries, and transform boundaries.
- Plate Tectonic Theory | PPT | Free Download - SlideShare
The document discusses plate tectonics and describes how the...
- Plate Tectonic Theory | PPT | Free Download - SlideShare
14 Ιουλ 2014 · The document discusses plate tectonics and describes how the Earth's lithosphere is broken into plates that move over time. It explains that plate tectonics built upon Alfred Wegener's theory of continental drift, which proposed that the continents were once joined together in a supercontinent called Pangaea.
Plate Tectonics. Seafloor spreading: new ocean crust is formed at ocean ridges and destroyed at deep-sea trenches (Geologist, Henry Hess) Age Evidence – Rocks along the mid-ocean ridges are...
31 Ιουλ 2019 · There are nine major tectonic plates and three types of plate boundaries - divergent boundaries which create mid-ocean ridges and rift valleys, convergent boundaries which cause subduction and mountain building, and transform boundaries where plates slide past each other like the San Andreas Fault.
8 Theory of Plate Tectonics Earth’s plates are in constant, slow motion Between 2.5 and 15 cm per year! Explains how plates move and form Since you’ve been alive, plates have moved more...
1 Plate Tectonics Plate Tectonics 2 Background of Continental Drift Theory • Up through the 1800’s, scientists believed that the locations of the continents had never changed. – German...
7 Απρ 2019 · Plate tectonics. Creation and destruction of lithosphere • Plate tectonics and continent building • Accretion through collisions • Recycling of material • Segregation of melts. The Rock cycle.
