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Filtering by: Advisor Martin, Robert R. Advisor Fisk, Martin R. Degree Level Master's

Hydrothermal vents of the Gorda Ridge, NE Pacific : mineralogy and chemistry of sulfide chimneys, precipitates and alteration products

Creator:

Howard, Katherine Jane

Resource Type:

Masters Thesis
Geochemistry of quaternary, rift-related volcanism in the Bransfield Strait, Antarctica

Creator:

Keller, Randall Arthur

Abstract:

The Bransfield Strait is the narrow, late Tertiary to Quaternary marginal basin separating the South Shetland Islands from the northern end of the Antarctic Peninsula magmatic arc. Quaternary volcanism in the strait is tholeiitic to mildly alkaline, and contrasts chemically with the pre-Quaternary calc-alkaline arc volcanism. Geochemical evidence presented here...

Resource Type:

Masters Thesis

Full Text:

. Rift-Related Volcanism in the Bransfield Strait. Antarctica Abstract approved: Martin R. Fisk The
Biotic alteration of oceanic basalt glass

Creator:

Drinnan, Megan R.

Abstract:

The subsurface microbial biosphere in the igneous oceanic crust has implications for global geochemical cycling, early life on Earth, and the search for life on Mars. Microscopic evidence of a subsurface microbial ecosystem includes biotic alteration textures associated with basaltic glass. The exact conditions in the basaltic layer that make...

Resource Type:

Masters Thesis

Full Text:

approved: _______________________________________________________________________ Martin R. Fisk