Geological Survey Professional Paper, Volume 604U.S. Government Printing Office, 1969 - Geology |
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1mm FIGURE adamellite alaskite dikes andesite basalt biotite breccias Chocolate Creek Chuck Cinder Cone Cinder Cone clasts clinopyroxene Cloudy Pass batholith Cloudy Pass pluton composition core crystals dacite dark-colored phase deposits dikes Disappointment Peak Disappointment Peak dome Dusty Creek feet Ford Gamma Ridge rocks Glacier Peak area Glacier Peak lavas Glacier Peak quadrangle gneiss granitoid granodiorite Grassy Point groundmass Holden quadrangle hornblende hypersthene inclusions intrusive breccias Lake lapilli lava flows layer light-colored phase mafic mafic minerals magma main pluton metamorphic Milk Creek Miocene Mount Rainier mudflows occur olivine overlying percent phenocrysts plagioclase Plane-polarized light pluton porphyry potassium feldspar pumice pumice lapilli pyroclastic pyroxene Pyroxene dacite quartz sample schist Sitkum stock Specimen Suiattle fill Suiattle River summit cone texture thick tonalite tonalite porphyry tuff upper Vista Creek vitric tuff volcanic rocks White Chuck Cinder White Chuck fill White Chuck River White Chuck valley zone