Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Committee Member Nielsen, Roger Committee Member Graham, David License All rights reserved

Deep crustal and mantle inputs to North Sister Volcano, Oregon High Cascade Range

Creator:

Schmidt, Mariek E.

Abstract:

The Central Oregon High Cascade Range is an anomalously mafic segment of the Cascade Arc due to ongoing intra-arc extension, which allows most magmas to traverse the crust without stalling and evolving to more evolved compositions. North Sister, a composite volcano in this arc segment, has produced a seemingly monotonous...

Resource Type:

Dissertation
Crystal Records of the Origin, Evolution, and Thermal Histories of Magmas

Creator:

Bradshaw, Richard W., 1985-

Abstract:

In volcanic systems, magma is generally stored in the shallow crust prior to eruption. The conditions of this storage directly impact whether the magma eventually erupts, or crystallizes within the crust to form a pluton. In this dissertation I present four studies that investigate the storage conditions of a number...

Resource Type:

Dissertation