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Plate Tectonics
5.1 - 5.9
Question | Answer |
---|---|
The man who came up with the continental drift hypothesis | Alfred Wegener |
The man who came up with the idea of seafloor spreading | Harry Hess |
Hot material rises and cool material sinks in a circular pattern | convection cell |
Mechanism for moving continents. The formation of new seafloor at spreading ridges pushes lithospheric plates on the Earth’s surface. | seafloor spreading |
Point on the Earth’s surface directly above the focus of the earthquake | epicenter |
Slab of Earth’s lithosphere that can move around on the planet’s surface | plate |
Equipment that measures seismic waves and other ground motions. | seismometer |
Location at which two plates come together | plate boundary |
Divergent plate boundary within a continent. This will create two continents | continental refiting |
Location where two lithospheric plates are spreading apart | divergent plate boundary |
Earthquake fault; one plate slides past another. | transform fault |
Plate boundary where two plates slide past one another. | transform plate boundary |
Line of volcanoes on a continental plate; the volcanoes are on a continent above a subducting oceanic plate. | continental arc |
Location where two lithospheric plates come together. | convergent plate boundary |
Line of volcanoes on an oceanic plate; the volcanoes are above a subducting oceanic plate and near a deep sea trench. | island arc |
Sinking of one lithospheric plate beneath another. | subduction |
Area where two lithospheric plates come together and one sinks beneath the other. | subduction zone |
Location where two lithospheric plates come together. | convergent plate boundary |