POTENTIAL IMPACT OF VARIATION IN THE SEAWATER STRONTIUM TO CALCIUM RATIO ON CORAL PALEOTHERMOMETRY IN THE FLORIDA KEYS, USA

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dc.contributor.advisorKilbourne, Kelly Hen_US
dc.contributor.advisorSchijf, Johanen_US
dc.contributor.authorKhare, Agrajen_US
dc.contributor.departmentMarine-Estuarine-Environmental Sciencesen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2018-09-15T05:34:46Z
dc.date.available2018-09-15T05:34:46Z
dc.date.issued2018en_US
dc.description.abstractStandard methods of reconstructing past sea surface temperatures with coral skeletal Sr/Ca ratios assume that the seawater Sr/Ca ratio is constant. However, data to support this assumption are sparse in coral reef environments, in part because analytical techniques capable of determining seawater Sr/Ca with sufficient accuracy and precision are time-consuming and not widely available. This work presents a new method to measure seawater Sr/Ca based on inductively coupled plasma atomic emission spectrometry that can be easily adopted by many coral paleothermometry laboratories. The work also presents a spatially gridded study of summer and winter seawater Sr/Ca from the middle Florida Keys Reef Tract. The results indicate that seawater Sr/Ca in nearshore waters influenced by the Florida Bay varies by ~0.1 mmol/mol. The observed variation could lead to errors of ~2°C in temperature reconstructions and suggests that corals growing in waters influenced by Florida Bay are less suited for paleoclimate studies.en_US
dc.identifierhttps://doi.org/10.13016/M20C4SP2D
dc.identifier.urihttp://hdl.handle.net/1903/21397
dc.language.isoenen_US
dc.subject.pqcontrolledPaleoclimate scienceen_US
dc.subject.pqcontrolledChemical oceanographyen_US
dc.subject.pquncontrolledCoralen_US
dc.subject.pquncontrolledflorida keysen_US
dc.subject.pquncontrolledPaleoclimateen_US
dc.subject.pquncontrolledpaleotemperatureen_US
dc.subject.pquncontrolledseawateren_US
dc.subject.pquncontrolledSr/Caen_US
dc.titlePOTENTIAL IMPACT OF VARIATION IN THE SEAWATER STRONTIUM TO CALCIUM RATIO ON CORAL PALEOTHERMOMETRY IN THE FLORIDA KEYS, USAen_US
dc.typeThesisen_US

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