EES 1050 Chapter Notes - Chapter 5: Lava Dome, Magma Chamber, Columnar Jointing
4 Dec 2018
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Document Summary
A mountain range with several active volcanoes in northern california, oregon, washington, and southern british columbia, canada cinder cone. A small, steep-sided volcano made up of pyroclastic materials resembling cinders that accumulate around a vent circum-pacific belt. An area of mountain building along the west coasts of south, central, and north america; the. Aleutians islands; japan; the philippines; and the islands of north australia and new zealand columnar joint columns in igneous rocks bounded by fractures that formed when lava or magma cooled and contracted composite volcano (stratovolcano) A volcano composed of lava flows and pyroclastic layers, typically of intermediate composition, and mudflows crater an oval to circular depression at the summit of a volcano resulting from the eruption of lava, pyroclastic materials, and gases fissure eruption. A volcanic eruption in which lava or pyroclastic materials issue from a long, narrow fissure (crack) or group of fissures lahar a mudflow composed of pyroclastic materials such as ash lava dome.
