dc.contributor.advisor | Donoghue, Joseph F. | |
dc.contributor.author | McNabb, Tyler | |
dc.date.accessioned | 2016-01-20T15:44:44Z | |
dc.date.available | 2016-01-20T15:44:44Z | |
dc.date.issued | 2014-12-01 | |
dc.identifier.uri | https://hdl.handle.net/11244/25684 | |
dc.description.abstract | The goal of this investigation was to develop sea-level and climate proxies for the northeastern Gulf of Mexico during the late Holocene. The purpose was to help better understand the relationship between climate change and fluctuations in sea-level and storm frequency. The data sources were a ground-penetrating radar (GPR) transect across a barrier island beach ridge plain on the northwestern coast of Florida, and a sediment core from a coastal lake on the same barrier island. The study site was St. Vincent Island, a barrier island beach ridge plain. The GPR data have been used to develop a proxy for sea-level change, while the sediment core has been analyzed for proxy evidence of paleo-storm occurrence. The process by which the study was conducted was as follows: 1) determine sedimentation rates and sediment characteristics in a coastal sediment core using radiocarbon, lead-210 dating, and a new method with a laser particle analyzer; 2) use the chronology of known historic hurricanes to determine the signature of major storms in the historic portion of the sediment record; 3) employ the storm signature to create a paleo-storm proxy in the long-term sediment record; 4) process and utilize a new method to analyze field GPR data to determine past sea-levels, based on the depth of basal deposits of the ridges in a beach ridge succession; and 5) correlate the sea-level history and paleo-storm occurrences to the regional climate history based on published proxy studies. Both climate-related proxies were found to correlate with previous proxies developed for this region. The new method of determining paleo-sea level, through use of the GPR data, was successful at determining paleo-sea level. | |
dc.format | application/pdf | |
dc.language | en_US | |
dc.publisher | Oklahoma State University | |
dc.rights | Copyright is held by the author who has granted the Oklahoma State University Library the non-exclusive right to share this material in its institutional repository. Contact Digital Library Services at lib-dls@okstate.edu or 405-744-9161 for the permission policy on the use, reproduction or distribution of this material. | |
dc.title | Developing Proxies for Late Holocene Sea-level and Climate Change along the Northeastern Gulf of Mexico Coast | |
dc.type | text | |
dc.contributor.committeeMember | Halihan, Todd | |
dc.contributor.committeeMember | Atekwana, Eliot Anong | |
osu.filename | McNabb_okstate_0664M_13797.pdf | |
osu.accesstype | Open Access | |
dc.description.department | Geology | |
dc.type.genre | Thesis | |