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Statistics and segmentation: Using Big Data to assess Cascades Arc compositional variability

Statistics and segmentation: Using Big Data to assess Cascades Arc compositional variability

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Authors

Bradley William Pitcher, Adam J Kent

Abstract

Primitive lavas erupted in the Cascades arc of western North America demonstrate significant patterns of along-arc heterogeneity. Such compositional diversity may be the result of differences in mantle melting processes, subduction geometry, regional tectonics, or compositions of the slab, mantle or overlying lithosphere. Previous authors have partitioned the arc into four geochemically distinct segments in order to assess the importance and relative roles of these potential causes (Schmidt et al., 2008). However, despite the immense amount of data available from the Cascade arc, no previous study has utilized a statistical approach on a comp...  more

DOI

https://doi.org/10.31223/osf.io/6xq3w

Subjects

Applied Mathematics, Applied Statistics, Earth Sciences, Geochemistry, Geology, Multivariate Analysis, Physical Sciences and Mathematics, Statistics and Probability, Volcanology

Keywords

geochemistry, geostatistics, Subduction zone, volcanology, trace elements, petrology, multivariate statistics, big data, Cascades, Cascades Arc, Igneous Petrology, Volcanic Arc

Dates

Published: 2018-09-24 14:58

License

Academic Free License (AFL) 3.0