Date of Award
5-2024
Degree Type
Masters Thesis
Degree Name
Master of Science (MS)
School
Biological, Environmental, and Earth Sciences
Committee Chair
Dr. Jeremy Deans
Committee Chair School
Biological, Environmental, and Earth Sciences
Committee Member 2
Dr. Alyson Brink
Committee Member 2 School
Biological, Environmental, and Earth Sciences
Committee Member 3
Dr. Franklin Heitmuller
Committee Member 3 School
Biological, Environmental, and Earth Sciences
Abstract
This project focuses on the importance of the relationship between Fe-Ti oxide abundance and interconnectivity, and crystal-plastic deformation in Atlantis Bank, Southwest Indian Ridge by utilizing Micro-CT scanning. This was done through comparing the Micro-CT scans of 15 samples from three different Ocean Drilling Program and International Ocean Discovery Program drill holes using the Nikon NIS Advanced Research 3-D visualization program and producing plots and statistics from MATLAB. Results indicate a wide range of textures across a range of crystal-plastic fabric intensity and Fe-Ti oxide abundance. Ultimately, there was a generally positive relationship between depth, CPF intensity, and Fe-Ti oxide percent. The CPF intensity and Fe-Ti oxide abundance was greater at shallower depths in all holes. The Fe-Ti oxide abundance and CPF intensity had a positive correlation through a CPF intensity of 3, but then seemed to have a negative correlation with CPF intensities of 4; a pattern also seen in 2D studies of similar samples. These relationships support a weaker crust, which would be easier for movement to occur, accounting for the deformation and motion of the OCC Atlantis Bank.
ORCID ID
0009-0004-2526-2354
Copyright
2024, Sarah Hill
Recommended Citation
Hill, Sarah, "3D Analysis of Fe-Ti Oxides and How They Affect Crystal-Plastic Deformation in Atlantis Bank, Southwest Indian Ridge" (2024). Master's Theses. 1028.
https://aquila.usm.edu/masters_theses/1028