Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Alternative title ssim EC 815 Committee Member Grunder, Anita

Diffuse deformation patterns along the North American plate boundary zone, offshore western United States

Creator:

Chaytor, Jason D.

Abstract:

Plate boundaries are commonly regions of complex, diffuse deformation with the motion across the boundary accommodated by numerous structural systems, rather than being narrow, discrete zones of deformation. One such boundary occurs where the North American plate makes contact with Juan de Fuca, Gorda, and Pacific plates along the west...

Resource Type:

Dissertation
Geochemical and helium isotopic variability within the Lau Basin

Creator:

Goddard, Charlotte Ives

Abstract:

This research incorporates geochemical and helium isotopic analyses of Lau Basin volcanic glasses, along with helium isotopic analyses of water column hydrothermal plumes to better understand the processes that control the formation and evolution of this backarc basin. Lavas newly collected from the four southernmost segments of the Valu Fa...

Resource Type:

Dissertation
Genesis of the El Salvador porphyry copper deposit, Chile and distribution of epithermal alteration at Lassen Peak, California

Creator:

Lee, Robert G. (Robert George)

Abstract:

The El Salvador porphyry copper deposit in the Indio Muerto district of northern Chile has been geologically investigated for more than 60 years and provides one of the best bases for understanding similar environments of ore formation elsewhere in the world. Fourteen new zircon U/Pb isotopic ages obtained via in...

Resource Type:

Dissertation