G E O: Plate Tectonics

Home › Posts filed under Plate Tectonics

Showing posts with label Plate Tectonics. Show all posts

Earth’s Changing Surface

Earth’s Changing Surface - Geologists now know that Wegener was right when he said that the continents had once been joined into the super...

Plate Boundaries - Back at the planet’s surface, the edges where two plates meet are known as plate boundaries. Most geologic activity, in...

The Seafloor Spreading Hypothesis - Scientists brought all of these observations together in the early 1960s to create the seafloor spread...

Seafloor Magnetism - In the previous lesson, you learned that magnetometers used on land were important in recognizing apparent polar wand...

Seafloor Bathymetry - During the war, battleships and submarines carried echo sounders to locate enemy submarines. Echo sounders produce s...

Magnetic Polarity Evidence - The puzzling new evidence came from studying Earth’s magnetic field and how it has changed. If you have ever ...

Exploring Earth’s Interior - Earth is composed of several layers. On the outside is the relatively cold, brittle crust. Below the crust is...

Evidence for Continental Drift - Besides the fit of the continents, Wegener and his supporters collected a great deal of evidence for the ...

Continental Drift - An important piece of plate tectonic theory is the continental drift idea. This was developed in the early part of th...

Theory of Plate Tectonics - Geologists agree that the theory of plate tectonics departing from the movements of continents, widening the o...