University of Washington / U.S. Geological Survey Cascades Volcano Observatory / Tertiary basement / Dome Samples U-230Th Disequilibria / Castle Creek / Dome Samples Plagioclase / University of California / /
IndustryTerm
eruptive products / Rock chips / chemical separation / chemical equilibrium / temporal and chemical information / chemical symbol / trace-metal contamination / sample solutions / gas-poor dacite / Mass-spectrometry protocols / chemical variations / chemical / energy filter / chemical symbols / Chemical separation procedures / /
NaturalFeature
Volcano Rekindled / Mount St. Helens / Castle Creek / /
Organization
University of Washington / University of California / Department of Earth and Space Sciences / US Federal Reserve / Geology Department / /
Person
Cooper / Dufek / Reagan / Reid / David R. Sherrod / Crystal Ages Plagioclase / Peter H. Stauffer / William E. Scott / /
ProvinceOrState
California / Washington / /
Technology
crystallization / Rock chips / Mass-spectrometry protocols / /