Index Catalog // ScholarsArchive@OSU

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:: along a section of mid-ocean ridge is unique. In general, lavas from the four propagating rifts west of

Mantle melting and heterogeneity along mid-ocean ridges : insight from basalt geochemistry along axial depth and morphologic gradients for intermediate spreading rate systems

Creator:: Russo, Christopher J.
Abstract:: This investigation focuses on gaining a better understanding of the complex relationship between melt generation, source variability and mid-ocean ridge morphology. The approach adopted here uses a variety of geochemical techniques to evaluate the ability of 'global' models to predict regional scale geochemical variability associated with axial depth and axial...
Resource Type:: Dissertation
Full Text:: between Indian and Pacific mid-ocean ridge basalt (MORB) mantle sources. Results of major and trace

The provenance and trace element signatures of MORB anorthitic plagioclase

Creator:: Burleigh, Andrew W.
Abstract:: In an attempt to understand the phase equilibria and petrogenesis of MORB anorthitic plagioclase, Cr-spinel commonly hosted within anorthitic plagioclase has been investigated petrographically and compositionally. Based on spinel-anorthite relationships from three samples of plagioclase ultra-phyric basalt (PUB; Southeast Indian Ridge, Axial Seamount and West Valley Segment, Juan de Fuca...
Resource Type:: Masters Thesis
Full Text:: and relatively homogeneous composition of mid ocean ridge basalt (MORB) suggested that they were a

Magmatic processes beneath mid-ocean ridges : insights from mineral and glass chemistry in plagioclase ultraphyric basalts

Creator:: Lange, Amy E.
Abstract:: Prior to eruption at mid-ocean ridges, melts must travel through >6 km of crust from their origin in the mantle. The final composition of the melts is dependent on both the melting conditions and magmatic processes within the crust. While mid-ocean ridge basalt (MORB) glasses are commonly used to infer...
Resource Type:: Dissertation
Full Text:: processes within the crust. While mid-ocean ridge basalt (MORB) glasses are commonly used to infer melting

Geochemistry of mid-ocean ridge basalt within and surrounding the Australian-Antarctic discordance

Creator:: Pyle, Douglas G.
Resource Type:: Dissertation
Full Text:: between isotopically distinct Indian and Pacific mid-ocean ridge basalt (MORB) occurs beneath the AAD

Magmatic processes at mid-ocean ridges : evidence from lavas and melt inclusions from the Southeast Indian Ridge, the Endeavour Segment of the Juan de Fuca Ridge, and the northern East Pacific Rise

Creator:: Sours-Page, Rachel E.
Abstract:: Magmatic processes control the chemical compositions of all lavas erupted at mid-ocean ridges. In this thesis, I present studies of magmatic processes on three different mid-ocean ridges to determine which processes are in action and to what extent each has affected the chemistry of mid-ocean ridge basalts at each location....
Resource Type:: Dissertation

Helium isotope variations in peridotite, gabbro and basalt from the Kane Oceanic Core Complex

Creator:: Konrad, Kevin
Abstract:: The Kane Oceanic Core Complex (OCC) is a valuable window into crustal architecture and chemical composition of the lithosphere beneath a slow-spreading ocean ridge. A suite of > 30 samples (comprised of whole rocks, mineral separates and basalt glasses) has been analyzed for ³He/⁴He isotope ratios and He concentrations. Gas...
Resource Type:: Masters Thesis
Full Text:: (8.0-8.2 RA) for mid-ocean ridge basalts. This suggests that domains of depleted upper mantle in the

Microseismicity on the Gorda Ridge

Creator:: Solano-Borrego, Ariel E.
Abstract:: The seismicity at the northern section of the Gorda Ridge has been studied with Ocean Bottom Seismographs. Nearly one hundred earthquakes were located with RMS travel time residuals less than 0.5 seconds. Most of these events lie within or near the array and they are probably associated with the dynamics...
Resource Type:: Masters Thesis
Full Text:: response to a general north-south compression of the Gorda plate. Mid-Ocean Ridge Seismicity Studies

Crustal structure and seismicity of the Gorda Ridge

Creator:: Solano-Borrego, Ariel E.
Abstract:: We have determined the seismic crustal structure of the northern part of the Gorda Ridge using signals generated by explosive charges and recorded on Ocean Bottom Seismometers. The shot pattern forms two parallel lines, one on the east flank and the other along the median valley. Inversion of the travel...
Resource Type:: Dissertation
Full Text:: . 2 2 Present plate configurations near the 14 Gorda Ridge. 3 The OSU analog ocean bottom

Evolution of Turbulence, Heat Content, and Freshwater Lenses in the Diurnal Warm Layer

Creator:: Moulin, Aurélie J.
Abstract:: Thorough understanding of the mechanisms controlling the temperature structure in the surface mixed layer of the ocean and, in particular, accurate values of sea surface temperature are critical for properly parameterizing air-sea heat exchange and quantifying the amount of heat redistributed below the surface. It is however difficult to obtain...
Resource Type:: Dissertation
Full Text:: in the Indian Ocean during the DYNAMO field experiment. These measurements showed the abrupt

ScholarsArchive@OSU

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

Mantle melting and heterogeneity along mid-ocean ridges : insight from basalt geochemistry along axial depth and morphologic gradients for intermediate spreading rate systems

The provenance and trace element signatures of MORB anorthitic plagioclase

Magmatic processes beneath mid-ocean ridges : insights from mineral and glass chemistry in plagioclase ultraphyric basalts

Geochemistry of mid-ocean ridge basalt within and surrounding the Australian-Antarctic discordance

Magmatic processes at mid-ocean ridges : evidence from lavas and melt inclusions from the Southeast Indian Ridge, the Endeavour Segment of the Juan de Fuca Ridge, and the northern East Pacific Rise

Helium isotope variations in peridotite, gabbro and basalt from the Kane Oceanic Core Complex

Microseismicity on the Gorda Ridge

Crustal structure and seismicity of the Gorda Ridge

Evolution of Turbulence, Heat Content, and Freshwater Lenses in the Diurnal Warm Layer

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