Index Catalog // ScholarsArchive@OSU

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

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

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

Buoy and satellite observation of wind induced surface heat exchange in the intraseasonal oscillation over West Pacific and Indian Ocean

Creator:: Araligidad, Nilesh
Abstract:: The importance of wind-driven latent heat fluxes for supporting tropical intraseasonal precipitation variability is analyzed. Tropical intraseasonal variability in the west pacific and Indian ocean is analyzed for northern and southern hemisphere summer during 1999-2005 using satellite and buoy observations. A composite analysis of QuikSCAT ocean vector winds and TRMM...
Resource Type:: Masters Thesis
Full Text:: Indian Ocean Abstract approved: Eric Maloney The importance of wind-driven latent heat fluxes for

Providing the best turbulent heat flux estimates from eddy correlation and bulk methods using DYNAMO data

Creator:: Marion, June Raven
Abstract:: In this thesis, data collected during the Dynamics of the Madden Julian Oscillation (DYNAMO) field campaign, conducted in the Indian Ocean in Fall of 2011, is used to compute heat fluxes at the air-sea interface by evaluating eddy covariances and bulk aerodynamic formulae. Errors in daily average gridded fluxes computed...
Resource Type:: Masters Thesis
Full Text:: Oscillation (DYNAMO) field campaign, conducted in the Indian Ocean in Fall of 2011, is used to compute heat

Development, performance evaluation and application of a physical model of the Kenyan-Tanzanian coastal region

Creator:: Mayorga Adame, Claudia Gabriela
Abstract:: A Regional Ocean Modeling System (ROMS) application for the coastal region of Kenya and Tanzania (0-10° S, 38.7-46.98° E) was developed with the aim of better resolving the circulation patterns in the coastal region that is poorly represented in global models. The model has a horizontal resolution of 4 km,...
Resource Type:: Masters Thesis
Full Text:: -Tanzanian Coastal Region. 1. Introduction The circulation in the Indian Ocean is different

Relationship between tropical Atlantic Sea surface temperature variability and southern Indian Ocean tropical cyclones

Creator:: DeBlander, Evan F.
Abstract:: Recent studies have found that equatorial Atlantic sea surface temperature (SST) variability may be influencing tropical Indian Ocean climate (Kucharski 2009, Wang 2009). Due to the economic and social impact of tropical cyclones, it is important to investigate how an Atlantic-Indian Ocean connection may be affecting tropical cyclone behavior in...
Resource Type:: Masters Thesis
Full Text:: surface temperature (SST) variability may be influencing tropical Indian Ocean climate (Kucharski 2009

Prokaryotes associated with marine crust

Creator:: Mason, Olivia Underwood
Abstract:: Oceanic crust covers nearly 70% of the Earth's surface, of which, the upper, sediment layer is estimated to harbor substantial microbial biomass. Marine crust; however, extends several kilometers beyond this surficial layer, and includes the basalt and gabbro layers. In particular, the basalt layer has high permeabilities which allows for...
Resource Type:: Dissertation
Full Text:: , G.L. (1999) Abiogenic methane in deep-seated mid- ocean ridge environments: Insights from stable

ScholarsArchive@OSU

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

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

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

Buoy and satellite observation of wind induced surface heat exchange in the intraseasonal oscillation over West Pacific and Indian Ocean

Providing the best turbulent heat flux estimates from eddy correlation and bulk methods using DYNAMO data

Development, performance evaluation and application of a physical model of the Kenyan-Tanzanian coastal region

Relationship between tropical Atlantic Sea surface temperature variability and southern Indian Ocean tropical cyclones

Prokaryotes associated with marine crust

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