Earth Science - Other Igneous Activity

Explore various types of igneous activity in this 31-minute lecture from Spahn's Science Lectures. Delve into the formation of different caldera types, including Crater Lake, Hawaiian, and Yellowstone. Examine fissure eruptions, basalt plateaus, and volcanic necks. Investigate intrusive bodies such as dikes, sills, batholiths, stocks, and laccoliths. Learn about columnar jointing and the processes of partial melting, including decompression melting and the addition of water. Gain insights into magma formation from solid rock and the melting of crustal rocks. Enhance your understanding with supplementary videos on caldera formation, Yellowstone, and intrusive structures.

Intro
CRATER LAKE-TYPE CALDERAS
HAWAIIAN-TYPE CALDERAS
YELLOWSTONE-TYPE CALDERAS
FISSURE ERUPTIONS AND BASALT PLATEAUS
VOLCANIC NECKS
NATURE OF INTRUSIVE BODIES
DIKES AND SILLS
COLUMNAR JOINTING
BATHOLITHS AND STOCKS
LACCOLITHS
PARTIAL MELTING
MAGMA FROM SOLID ROCK
DECOMPRESSION MELTING
ADDITION OF WATER
MELTING CRUSTAL ROCKS