Browsing by Subject "Paleoceanography"
Now showing items 1-9 of 9
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(2017-07-31)The objective of this dissertation is to understand the dynamics of U-Th isotope behavior in deep sea marine sediment cores extracted from the Panama Basin located in the eastern Equatorial Pacific. Specifically, I attempt ...
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(2010-07-14)The relationship between intermediate watermass response to Atlantic Meridonial Overturning Circulation (AMOC) during two abrupt cooling events of the last deglacial, the Younger Dryas (YD) and Heinrich Event 1 (H1) is c ...
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(2012-07-16)Oceanic circulation remains one of the poorly understood elements of the global climate system, despite its importance to planetary heat redistribution and carbon cycling. The nature of deep-water formation and circulation ...
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(2012-07-16)A growing body of Nd isotope data derived from fish debris and Fe-Mn crusts suggests that the Pacific was characterized by deep-water mass formation in both the North and South Pacific during the Early Paleogene. However, ...
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(2021-07-15)The year 2020 Common Era (CE) observed the highest number of named tropical cyclone events since the instrumental record began in 1850 CE. Most downscaled models suggest that the frequency and destructive potential of major ...
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(2015-07-27)Paleotemperature proxies enable scientists to reconstruct past ocean temperatures from sediment recovered in deep-sea cores. This dissertation takes an in-depth look at two proxies, Mg/Ca ratios of planktonic foraminifera ...
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(2023-07-26)The purpose of this research is to investigate atmospheric and oceanographic change that affected the eastern equatorial Pacific Ocean (EEP), as archived in marine sediments from a single site in the Panama Basin, over the ...
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(2022-07-20)Marine methane hydrate is one of the largest readily exchangeable carbon reservoirs near Earth’s surface. Small changes in temperature and pressure could perturb the stability of methane hydrate and release massive amounts ...
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(2017-03-07)Reconstructions of overturning circulation from IODP Sites covering 40-65 Ma indicate a fundamentally different overturning mode (referred to herein as the Paleogene mode) compared to the modern. Significantly different ...