EDUC109 Study Guide - Final Guide: Weathered, Jigsaw Puzzle, Supercontinent
31 May 2018
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Plate Tectonics
-Relative movement of plates comprising crust and the uppermost rigid part of the mantle (lithosphere(
-Continental plates consist of two crust types:
-Ocean crust=Found under oceans
-Continental crusts=found under continents
There are 3 separate processes related to plate tectonic movements that can produce earthquakes.
-Divergent Plates
-Two tectonic plates separate, causing magma to rise up, and sometimes earthquakes
-Convergent plates:
-Two tectonic plates collide into each other.
-If one of the plates is an oceanic plate, subduction occurs. Oceanic plate sinks below continental plate.
-If both plates are continental plates, mountain ranges are formed.
-Transform plates:
-Plates that slide past each other. Significant cause of earthquakes
Document Summary
Relative movement of plates comprising crust and the uppermost rigid part of the mantle (lithosphere( Continental plates consist of two crust types: There are 3 separate processes related to plate tectonic movements that can produce earthquakes. Two tectonic plates separate, causing magma to rise up, and sometimes earthquakes. Two tectonic plates collide into each other. If one of the plates is an oceanic plate, subduction occurs. If both plates are continental plates, mountain ranges are formed. Ring of fire: pacific ocean surround by plates. Called ring of fire because of significant numbers of volcanoes and earthquakes. Paheohe lava= liquid, and cools to leave a smooth, ropy surface. Aa lava= highly viscous, and forms a rough block texture on cooling. Obsidian= volcanic glass that forms from very rapid cooling of molten rock. Scoria= like pumice, but darker and heavier. Tsunami= caused by submarine earthquakes, landslides into the ocean, eruptions of coastal and island volcanoes.
