Identifier

etd-03282017-132754

Degree

Master of Arts (MA)

Department

Geography and Anthropology

Document Type

Access to Thesis Restricted to LSU Campus

Abstract

Research in Paynes Creek National Park, Belize provides insights about the ancient Maya and environmental changes over time. Sea-level rise has impacted coastal settlements worldwide. I study the marine sediment from five underwater salt works with large shell deposits. Marine sediment samples were exported under permit to the Archaeology Lab at Louisiana State University. The marine sediment samples were analyzed using loss-on ignition to tell the amount of organic matter. The samples also underwent microscopic analysis to identify the organic composition of the marine sediment. Using loss-on ignition and microscopic sorting, sea-level rise can be analyzed. A high percent of organic matter in conjunction with red mangrove (R. mangle) roots is indicative of mangrove peat. Mangrove peat is an indicator of actual sea-level rise because R. mangle has been shown to keep pace with the rise of sea level. By analyzing the marine sediment samples from these five sites, actual, as opposed to relative/ subsidence, sea-level rise can be assessed.

Date

2017

Document Availability at the Time of Submission

Student has submitted appropriate documentation to restrict access to LSU for 365 days after which the document will be released for worldwide access.

Committee Chair

McKillop, Heather

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