dc.contributor.advisor | Johnston, David T | |
dc.contributor.author | Leavitt, William Davie | |
dc.date.accessioned | 2014-06-06T21:10:21Z | |
dash.embargo.terms | 2015-06-04 | en_US |
dash.embargo.terms | 2015-06-04 | |
dc.date.issued | 2014-06-06 | |
dc.date.submitted | 2014 | |
dc.identifier.citation | Leavitt, William Davie. 2014. On the mechanisms of sulfur isotope fractionation during microbial sulfate reduction. Doctoral dissertation, Harvard University. | en_US |
dc.identifier.other | http://dissertations.umi.com/gsas.harvard:11511 | en |
dc.identifier.uri | http://nrs.harvard.edu/urn-3:HUL.InstRepos:12274566 | |
dc.description.abstract | Underlying all applications of sulfur isotope analyses is our understanding of isotope systematics. This dissertation tests some fundamental assumptions and assertions, drawn from equilibrium theory and a diverse body of empirical work on biochemical kinetics, as applied to the multiple sulfur isotope systematics of microbial sulfate reduction. I take a reductionist approach, both in the questions addressed and experimental approaches employed. This allows for a mechanistic, physically consistent interpretation of geological and biological sulfur isotope records. The goal of my work here is to allow interpreters a more biologically, chemically and physically parsimonious framework to decipher the signals coded in modern and ancient sulfur isotope records. | en_US |
dc.description.sponsorship | Earth and Planetary Sciences | en_US |
dc.language.iso | en_US | en_US |
dash.license | LAA | |
dc.subject | Geochemistry | en_US |
dc.subject | Geobiology | en_US |
dc.subject | Microbiology | en_US |
dc.subject | enzyme isotope fractionation | en_US |
dc.subject | geomicrobial kinetic isotope effects | en_US |
dc.subject | microbial sulfate reduction | en_US |
dc.subject | multiple sulfur isotopes | en_US |
dc.subject | Phanerozoic oxygen | en_US |
dc.subject | sulfur cycle | en_US |
dc.title | On the mechanisms of sulfur isotope fractionation during microbial sulfate reduction | en_US |
dc.type | Thesis or Dissertation | en_US |
dash.depositing.author | Leavitt, William Davie | |
dc.date.available | 2015-06-04T07:30:48Z | |
thesis.degree.date | 2014 | en_US |
thesis.degree.discipline | Earth and Planetary Sciences | en_US |
thesis.degree.grantor | Harvard University | en_US |
thesis.degree.level | doctoral | en_US |
thesis.degree.name | Ph.D. | en_US |
dc.contributor.committeeMember | Pearson, Ann | en_US |
dc.contributor.committeeMember | Hansel, Colleen | en_US |
dc.contributor.committeeMember | Cavanaugh, Colleen | en_US |
dc.contributor.committeeMember | Cardoso Pereira, Inês | en_US |
dc.contributor.committeeMember | Bradley, Alexander | en_US |
dash.contributor.affiliated | Leavitt, William | |