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Microbiology of basalts targeted for deep geological carbon sequestration : field observations and laboratory experiments

Creator:: Lavalleur, Heather J.
Abstract:: With rising concentrations of CO₂ in the Earth's atmosphere causing concern about climate change, many solutions are being presented to decrease emissions. One of the proposed solutions is to sequester excess CO₂ in geological formations such as basalt. The deep subsurface is known to harbor much of the microbial biomass...
Resource Type:: Masters Thesis

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:: ; Furnes et al., 2001a; Furnes et al., 2008; Furnes and Staudigel, 1999; Heberling et al., 2010; Josef

Microbial alteration of the seafloor

Creator:: Josef, Jennifer A.
Abstract:: In the early 1980's the first evidence of biological alteration of basalt glass (sideromelane) was published. Since that time additional evidence, including DNA staining, isotopic abundance and chemical mapping, has come to light suggesting that this unique alteration of glass can be attributed to microbial activity. Microbial alteration textures have...
Resource Type:: Masters Thesis
Full Text:: and products of dissolution (Thorseth et al., 1995 a; Staudigel et al., 1995 and1998). These initial

The marine geomorphology of American Samoa : shapes and distributions of deep sea volcanics

Creator:: Roberts, Jed T.
Abstract:: The geologic processes at work in American Samoa have long been a point of scientific debate. Of its numerous volcanic formations, few breach sea level, leaving an enormous proportion of their mass unavailable to traditional observation. This study aims to describe the deep sea geomorphology of American Samoa through compilation,...
Resource Type:: Masters Thesis
Full Text:: of the archipelago (Hart et al. 2000; Staudigel et al. 2006). From a scientific viewpoint, the

An Evaluation of the Complex Age Progression along the Cook-Austral Islands Using High-resolution ⁴⁰Ar/³⁹Ar Incremental Heating Ages

Creator:: Rose, Joanna
Abstract:: The Cook-Austral island chain has been the center of debate for many years. Contrary to the classical hotspot hypothesis, this volcanic island chain does not exhibit a linear age progression with a single node of active volcanism, but instead shows evidence of young volcanism at several points along the chain....
Resource Type:: Masters Thesis
Full Text:: range of isotopic compositions, reflecting a heterogeneous mantle source (Staudigel et al. 1991). The

Two styles of oceanic near-ridge volcanism for the Southeast Indian Ocean and the NE Pacific Ocean

Creator:: Sprtel, Frank M.
Resource Type:: Masters Thesis

The Southeast Indian Ridge water contents of MORB glasses and chemical effects of propagating rifts

Creator:: Sylvander, Brendan A.
Resource Type:: Masters Thesis
Full Text:: fractionation than depleted magmas. Michael and Chase (1987) traced these trends to the fact that higher H.,O

Hydrothermal alteration of a supra-subduction zone ophiolite analog, Tonga, Southwest Pacific

Creator:: Kelman, Melanie C.
Abstract:: The basement of the Tonga intraoceanic forearc comprises Eocene arc volcanic crust formed during the earliest phases of subduction. Volcanic rocks recovered from the forearc include boninites and arc tholeiites, apparently erupted into and upon older mid-oceanic ridge tholeiites. Rock assemblages suggest that the forearc basement is a likely analog...
Resource Type:: Masters Thesis
Full Text:: seawater in the volcanic section can continue for tens of millions of years (Staudigel et al., 1981

Alteration mineralogy and geochemistry of the Archaean Onverwacht Group, Barberton Mountain Land, South Africa

Creator:: Hoffman, Sarah Elizabeth
Resource Type:: Masters Thesis
Full Text:: -h), I was struck, not by how different the strata seemed to be, but by how much the rocks seemed to

Timing and Composition of Volcanism at Harrat Ithnayn, Western Saudi Arabia

Creator:: Alhejji, Suhail
Abstract:: Western Saudi Arabia hosts a number of young volcanic fields, known as “Harrats”. Harrats cover a significant proportion of western Saudi Arabia and are associated with significant volcanic hazards. However, the ultimate cause of volcanic activity remains unclear. Younger volcanism (<12 Ma) is clearly represented by the north-south-trending region known...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Microbiology of basalts targeted for deep geological carbon sequestration : field observations and laboratory experiments

Biotic alteration of oceanic basalt glass

Microbial alteration of the seafloor

The marine geomorphology of American Samoa : shapes and distributions of deep sea volcanics

An Evaluation of the Complex Age Progression along the Cook-Austral Islands Using High-resolution ⁴⁰Ar/³⁹Ar Incremental Heating Ages

Two styles of oceanic near-ridge volcanism for the Southeast Indian Ocean and the NE Pacific Ocean

The Southeast Indian Ridge water contents of MORB glasses and chemical effects of propagating rifts

Hydrothermal alteration of a supra-subduction zone ophiolite analog, Tonga, Southwest Pacific

Alteration mineralogy and geochemistry of the Archaean Onverwacht Group, Barberton Mountain Land, South Africa

Timing and Composition of Volcanism at Harrat Ithnayn, Western Saudi Arabia

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