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Loma Linda University Electronic Theses, Dissertations & Projects
Igneous rocks -- analysis; Mesozoic Cordilleran Arc; Peninsular Ranges batholith; Geochemical data; Magmatic processes; Plate Tectonics
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Interpreting Southern California Arc Geochemistry By Multivariate And Spatial Methods, Lance R. Pompe
Interpreting Southern California Arc Geochemistry By Multivariate And Spatial Methods, Lance R. Pompe
Loma Linda University Electronic Theses, Dissertations & Projects
Exploratory data analysis methods of multivariate statistical techniques and spatial visualization are emerging trends in understanding big datasets. In this project, these techniques are applied to a large igneous geochemical dataset from the southern California segment of the Mesozoic Cordilleran arc to better understand magmatic and plate tectonic processes at a subduction zone. A set of 287 granitic samples collected by Baird and Miesch (1984) from the Peninsular Ranges batholith is analyzed for 38 geochemical elements. Patterns in both the geochemical variation and the spatial variation of this dataset are explored. Since geochemical data are compositional in nature, special treatment …