Fe-Ti oxides are important components of oceanic core complexes (OCC) formed at slow-spreading mid-ocean ridges since Fe-Ti oxides are more susceptible to crystal-plastic deformation than silicate minerals. This study investigated the predicted relationship between the presence and concentration of Fe-Ti oxides and the presence and intensity of crystal-plastic deformation in gabbroic samples from Atlantis Bank, Southwest Indian Ridge (SWIR). Atlantis Bank is an oceanic core complex that formed through the exhumation of lower oceanic crust along a detachment fault. OCCs form along slow-spreading ridges and are characterized by the complex interactions between magmatism and lithospheric extension, thus making these complexes more susceptible to crystal-plastic deformation at higher temperatures. Atlantis Bank has been the focus of many scientific expeditions including: Ocean Drilling Program Holes 735B, and 1105A, International Oceanic Discovery Program Hole U1473A, and submersible studies. This study utilized samples from all three holes from near the seafloor to a depth of 1.5 km below the seafloor. This study calculated Fe-Ti oxide concentrations within the samples using the open source software package Fiji and statistically analyzed them using the open source software package R. The results indicate that Fe-Ti oxide concentration does correlate with crystal-plastic foliation (CPF) intensity, showing that 76.3% of samples with 5% or more Fe-Ti oxides have a corresponding CPF value of 2 or more (porphyroclastic foliation to ultramylonitc). These results indicate that there is a relationship between Fe-Ti oxide concentration and the CPF intensity within the samples taken from Atlantis Bank, SWIR.
","abstract_html":"<p>Fe-Ti oxides are important components of oceanic core complexes (OCC) formed at slow-spreading mid-ocean ridges since Fe-Ti oxides are more susceptible to crystal-plastic deformation than silicate minerals. This study investigated the predicted relationship between the presence and concentration of Fe-Ti oxides and the presence and intensity of crystal-plastic deformation in gabbroic samples from Atlantis Bank, Southwest Indian Ridge (SWIR). Atlantis Bank is an oceanic core complex that formed through the exhumation of lower oceanic crust along a detachment fault. OCCs form along slow-spreading ridges and are characterized by the complex interactions between magmatism and lithospheric extension, thus making these complexes more susceptible to crystal-plastic deformation at higher temperatures. Atlantis Bank has been the focus of many scientific expeditions including: Ocean Drilling Program Holes 735B, and 1105A, International Oceanic Discovery Program Hole U1473A, and submersible studies. This study utilized samples from all three holes from near the seafloor to a depth of 1.5 km below the seafloor. This study calculated Fe-Ti oxide concentrations within the samples using the open source software package <em>Fiji</em> and statistically analyzed them using the open source software package <em>R</em>. The results indicate that Fe-Ti oxide concentration does correlate with crystal-plastic foliation (CPF) intensity, showing that 76.3% of samples with 5% or more Fe-Ti oxides have a corresponding CPF value of 2 or more (porphyroclastic foliation to ultramylonitc). These results indicate that there is a relationship between Fe-Ti oxide concentration and the CPF intensity within the samples taken from Atlantis Bank, SWIR.</p>","abstract_has_math":false,"creators":["Winkler, Daniel"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Masters Thesis","degree_discipline":"Geography and Geology","degree_department":null,"school":null,"contributors":["Jeremy Deans","Frank Heitmuller","Mark Puckett"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-12-01T08:00:00Z","date_published":"2017-12-01T08:00:00Z","updated_at":"2026-07-24T05:44:50Z","subjects":["Geology","Oceanic Core Complexes","Fe-Ti Oxides","Deformation","Fiji","R","Other Earth Sciences","Tectonics and Structure"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://aquila.usm.edu/masters_theses/319","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Jeremy Deans","Frank Heitmuller","Mark Puckett"]},{"key":"dc:creator","label":"Author","values":["Winkler, Daniel"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2017-09-25T07:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Geography and Geology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Geology","Oceanic Core Complexes","Fe-Ti Oxides","Deformation","Fiji","R","Other Earth Sciences","Tectonics and Structure"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://aquila.usm.edu/masters_theses/319"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Fe-Ti oxides are important components of oceanic core complexes (OCC) formed at slow-spreading mid-ocean ridges since Fe-Ti oxides are more susceptible to crystal-plastic deformation than silicate minerals. This study investigated the predicted relationship between the presence and concentration of Fe-Ti oxides and the presence and intensity of crystal-plastic deformation in gabbroic samples from Atlantis Bank, Southwest Indian Ridge (SWIR). Atlantis Bank is an oceanic core complex that formed through the exhumation of lower oceanic crust along a detachment fault. OCCs form along slow-spreading ridges and are characterized by the complex interactions between magmatism and lithospheric extension, thus making these complexes more susceptible to crystal-plastic deformation at higher temperatures. Atlantis Bank has been the focus of many scientific expeditions including: Ocean Drilling Program Holes 735B, and 1105A, International Oceanic Discovery Program Hole U1473A, and submersible studies. This study utilized samples from all three holes from near the seafloor to a depth of 1.5 km below the seafloor. This study calculated Fe-Ti oxide concentrations within the samples using the open source software package Fiji and statistically analyzed them using the open source software package R. The results indicate that Fe-Ti oxide concentration does correlate with crystal-plastic foliation (CPF) intensity, showing that 76.3% of samples with 5% or more Fe-Ti oxides have a corresponding CPF value of 2 or more (porphyroclastic foliation to ultramylonitc). These results indicate that there is a relationship between Fe-Ti oxide concentration and the CPF intensity within the samples taken from Atlantis Bank, SWIR.
"]},{"key":"dc:title","label":"Title","values":["The Impact of Fe-Ti Oxide Concentration on the Structural Ridgity of the Lower Oceanic Crust, Atlantis Bank, Southwest Indian Ridge"]}]}],"canonical_facts":{"dc:contributor":["Jeremy Deans","Frank Heitmuller","Mark Puckett"],"dc:creator":["Winkler, Daniel"],"dc:date.available":["2017-09-25T07:00:00Z"],"dc:description.abstract":["Fe-Ti oxides are important components of oceanic core complexes (OCC) formed at slow-spreading mid-ocean ridges since Fe-Ti oxides are more susceptible to crystal-plastic deformation than silicate minerals. This study investigated the predicted relationship between the presence and concentration of Fe-Ti oxides and the presence and intensity of crystal-plastic deformation in gabbroic samples from Atlantis Bank, Southwest Indian Ridge (SWIR). Atlantis Bank is an oceanic core complex that formed through the exhumation of lower oceanic crust along a detachment fault. OCCs form along slow-spreading ridges and are characterized by the complex interactions between magmatism and lithospheric extension, thus making these complexes more susceptible to crystal-plastic deformation at higher temperatures. Atlantis Bank has been the focus of many scientific expeditions including: Ocean Drilling Program Holes 735B, and 1105A, International Oceanic Discovery Program Hole U1473A, and submersible studies. This study utilized samples from all three holes from near the seafloor to a depth of 1.5 km below the seafloor. This study calculated Fe-Ti oxide concentrations within the samples using the open source software package Fiji and statistically analyzed them using the open source software package R. The results indicate that Fe-Ti oxide concentration does correlate with crystal-plastic foliation (CPF) intensity, showing that 76.3% of samples with 5% or more Fe-Ti oxides have a corresponding CPF value of 2 or more (porphyroclastic foliation to ultramylonitc). These results indicate that there is a relationship between Fe-Ti oxide concentration and the CPF intensity within the samples taken from Atlantis Bank, SWIR.
"],"dc:identifier":["https://aquila.usm.edu/masters_theses/319"],"dc:subject":["Geology","Oceanic Core Complexes","Fe-Ti Oxides","Deformation","Fiji","R","Other Earth Sciences","Tectonics and Structure"],"dc:title":["The Impact of Fe-Ti Oxide Concentration on the Structural Ridgity of the Lower Oceanic Crust, Atlantis Bank, Southwest Indian Ridge"],"thesis:degree_discipline":["Geography and Geology"],"thesis:degree_level":["Masters Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T05:44:50Z"}