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Petrogenesis of the Steens Basalt : Variation in Source Contributions and Effects of Crustal Passage During the Onset of Columbia River Flood Basalt Volcanism

Creator:

Moore, Nicole E.

Abstract:

Continental flood basalts represent short-lived but immense blasts of mafic magma to the continental crust. The youngest and smallest continental flood basalt worldwide, the Columbia River Basalt, initiated with the eruption of the most mafic member, the Steens Basalt (~16.9 Ma). The Steens Basalt is exposed in southeast Oregon, southwest...

Resource Type:

Dataset and Dissertation

Full Text:

for allowing me to mentor you, and for in turn teaching me more than you can imagine! Rick
Evolution and inheritance of Cascadia sub-arc mantle reservoirs

Creator:

Bromley, Sarah Ashley

Abstract:

Inheritance from pre-existing mantle domains and fluid and melt contributions from active subduction together produce the geochemical signatures of mantle-derived arc basalts. In this context, this work evaluates the evolution of Cascadia mantle sources by documenting the isotopic and compositional characteristics of primitive basalts along a transect across the Eocene-Oligocene...

Resource Type:

Masters Thesis

Full Text:

Justin Millard both prepped samples for me, a favor I hope to repay to both down the road. Rick