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Filtering by: Creator Thorseth, Ingunn H. Academic Affiliation College of Earth, Ocean, and Atmospheric Sciences

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:

., 2006; Storrie-Lombardi and Fisk, 2004; Thorseth et al., 2001; Thorseth et al., 1998; Thorseth et al
Characterizing drivers of microbial community structure and function in diverse marine sediments

Creator:

Graw, Michael F.

Abstract:

Marine sediments are one of the largest habitats for microbial life on earth. These microorganisms play critical roles in biogeochemical cycling both within the subsurface and between the sediment and water columns. However, microbial communities in sediments are highly heterogeneous and the factors defining microbial community structure and metabolic function...

Resource Type:

Dissertation

Full Text:

K-U, Kubo Y, Bowles MW, Heuer VB, Hong W-L, Hoshino T, Ijiri A, Imachi H, Ito M, Kaneko M, Lever
Impact of Igneous Mineralogy on the Composition and Metabolic Function of Microbial Biofilms in a Thermal Suboceanic Crustal Aquifer

Creator:

Smith, Amy R.

Abstract:

Igneous oceanic crust encompasses ~60% of Earth’s surface and is composed of basalt glass and mafic, ultramafic, and felsic minerals. A vast marine aquifer lies within the crust, exchanging geochemically altered fluids with seawater from the overlying ocean at ridge crests, flanks, seamounts, and outcrops where permeable crust is exposed....

Resource Type:

Dissertation