Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"Paleoredox proxies"”.
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The Fate and Mobility of Heavy Metals in East Anglian Salt Marsh Sediments
… challenge in Earth Sciences. Geochemical proxies in sedimentary rocks used to reconstruct past redox conditions—such as the speciation of iron mineralogy, δ98Mo, and δ53Cr—rely on the assumption that the geochemical signature acquired at the sediment surface is translated directly into the …
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Testing the ancient marine redox record from oxygenic photosynthesis to photic zone euxina
… which is implicit in their utility as PZE paleoredox proxies. Results from a modern case study underscore the need to consider allochthonous and microbial mat sources and the role of basin restriction as alternative explanations for these biomarkers in the geologic record, in addition to an …
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Testing the ancient marine redox record from oxygenic photosynthesis to photic zone euxina
… which is implicit in their utility as PZE paleoredox proxies. Results from a modern case study underscore the need to consider allochthonous and microbial mat sources and the role of basin restriction as alternative explanations for these biomarkers in the geologic record, in addition to an …
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Developing antimony stable isotope methods as a new geochemical redox indicator: computational isotopic fractionation studies
The student, Hannah Shay, submitted this Thesis for approval on 2021-04-21 at 15:54.