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GLENDALE COMMUNITY COLLEGE EARTH SCIENCE IMAGE ARCHIVE ASTRONOMY GEOLOGY METEOROLOGY MUSEUM TOUR PHS 120 PHS 120 ONLINE HOME
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TOPICS: VOLCANIC BOMBS - Volcanic bombs are pieces of ejecta (ejectum - singular) that are greater than 64 mm in average diameter (about 2.5 inches) that were shot from the volcano in a somewhat plastic condition. Typically these bombs were somewhat modified as they flew through the air. The types of bombs in the archive include: fusiform, cow pie, rotational, slag, explosion, bread crust, teardrop, ribbon and core bombs. The bombs in the Archive are from volcanic vents throughout northern Arizona, southern California and western New Mexico. VENTS - |