Fe/Ni Fe/Mg Increasing Fe toward core Increasing Si toward surface There are certain trends in Earths chemistry. The crust is relatively depleted in Fe,
Convergent boundary – 3 types. Ocean-continent convergent boundary Plate of oceanic crust collides with plate of continental crust. Oceanic crust is.
100 200 400 300 400 Earth Layers Heat Transfer Continental Drift 300 200 400 200 100 500 100 Seafloor Spreading Plate Boundaries 200 300 400 100 500.
Essential Questions How does the movement of Earth’s tectonic plates result in many geologic features? What are the three types of plate boundaries and.
TECTONIC PLATES Ch 12.2. A Cross-Section of Earth.
PLATE TECTONICS Chapter 8. Magnetism Evidence that supports the theory comes from the magnetic properties and ages of igneous rock on the ocean floor.
Geology and Nonrenewable Minerals. Geology Geology – science devoted to study of dynamic processes occurring on earth's surface and interior Three major.
Seafloor Spreading Theory Explains how ocean crust is formed at ocean ridges and destroyed at deep- sea trenches Supports Wagener’s continental drift.
Volcanoes. Volcanoes and Plate Tectonics A _____________ is a weak spot in the crust where molten material, or _______, comes to the surface. ________.
Volcanoes 123
Andrija Mohorovicic´
Earthquakes, Volcanoes, and Mountain Building. Tectonic Plate Boundaries Convergent: Tectonic plates collide Divergent: Tectonic plates move away from.
