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Filtering by: Committee Member Grunder, Anita L. Subject Hood, Mount (Or.)

Magma chamber processes over the past 475,000 years at Mount Hood, Oregon : insights from crystal zoning and crystal size distribution studies

Creator:

Darr, Cristina M.

Abstract:

Several different petrological techniques have been applied to lava flows between 200 to 475,000 years old from Mount Hood, Oregon. Mount Hood is unusual, in comparison to nearby Mount St. Helens and Mount Jefferson, in that it has produced relatively homogeneous lava compositions over 475,000 years. Erupted lavas are mostly...

Resource Type:

Masters Thesis

Full Text:

. ________________________________________________________________________ Cristina M. Darr, Author ACKNOWLEDGMENTS I would like to thank Adam Kent, Anita
Controls on eruption style and magma compositions at Mount Hood, Oregon

Creator:

Koleszar, Alison M.

Abstract:

This study is an effort to characterize the magma sources, plumbing system, and eruptive behavior of Mount Hood, a low-explosivity recharge-dominated volcano in the Oregon Cascades. The three manuscripts in this dissertation make use of melt inclusion data, phenocryst compositions, and whole rock petrology and geochemistry to build a schematic...

Resource Type:

Dissertation

Full Text:

olivine o The faculty of the OSU VIPER group, including Anita Grunder, Dave Graham, and Shan de Silva