Reconstruction of eastern Pacific climate variability using multiple geochemical tracers in Cocos Island corals

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dc.contributor.advisorDroxler, Andre W.en_US
dc.creatorHouston, Robb Eldonen_US
dc.date.accessioned2009-06-04T08:32:39Zen_US
dc.date.available2009-06-04T08:32:39Zen_US
dc.date.issued2000en_US
dc.description.abstractMultiple isotopic and geochemical tracers were employed to unravel the complex history of recent environmental variability at Cocos Island. Downcore variations in delta18O, U/Ca, Sr/Ca, and Ba/Ca within coral skeletal aragonite correlate with environmental parameters such as temperature, precipitation, and advection of surface waters. U/Ca and Sr/Ca ratios were evaluated as potential paleothermometers in conjunction with delta 18O, and indicate a combined influence of temperature and precipitation on delta18O. Ba/Ca records indicate that this tracer may be a useful tracer for the advection of coastal waters from the Gulf of Panama and the strength of the NECC. Information regarding large-scale atmospheric and oceanic processes is also embedded within the records. Long-term trends are reproducible in coral records throughout the eastern Pacific and indicate significant changes in the tropical climate system. Records developed from Cocos Island suggest an increase in rainfall in conjunction with localized cooling during the past 100 years.en_US
dc.format.extent110 p.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS GEOL. 2000 HOUSTONen_US
dc.identifier.citationHouston, Robb Eldon. "Reconstruction of eastern Pacific climate variability using multiple geochemical tracers in Cocos Island corals." (2000) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/17344">https://hdl.handle.net/1911/17344</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/17344en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectGeologyen_US
dc.subjectEnvironmental scienceen_US
dc.subjectGeochemistryen_US
dc.titleReconstruction of eastern Pacific climate variability using multiple geochemical tracers in Cocos Island coralsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEarth Scienceen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Artsen_US
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