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EXPERIMENTAL DETERMINATION OF LITHIUM PARTITIONING BETWEEN CLINOPYROXENE AND MELT

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dc.contributor.authorFairchild, Megan
dc.contributor.chairHolycross, Meganen_US
dc.contributor.committeeMemberPritchard, Matthewen_US
dc.contributor.committeeMemberGazel Dondi, Estebanen_US
dc.date.accessioned2024-01-31T21:12:07Z
dc.date.available2024-01-31T21:12:07Z
dc.date.issued2023-05
dc.description.abstractPlanetary habitability is enabled by the transfer of volatile substances like H2O from planetary interiors to surfaces during volcanic degassing, but fully degassed rocks will not retain a geochemical record of these processes. The element lithium (Li) is thought to behave moderately volatilely and may function as a proxy for H2O in completely degassed systems, like Martian meteorites. Here we present new experimental measurements of Li partitioning between clinopyroxene and melts to examine if Li trends in Martian meteorites may be attributable to processes other than H2O degassing. We find Li is moderately incompatible in clinopyroxene in both compositions and identify potential partitioning trends with temperature and pressure. We used the new data to model the concentration of Li in cpx during cooling. Our cooling model reproduces Li trends in Martian cpx, suggesting that previous hypotheses regarding H2O in the Martian interior may need to be re-evaluated.en_US
dc.identifier.doihttps://doi.org/10.7298/ajkf-1n17
dc.identifier.otherFairchild_cornell_0058O_11758
dc.identifier.otherhttp://dissertations.umi.com/cornell:11758
dc.identifier.urihttps://hdl.handle.net/1813/113883
dc.language.isoen
dc.rightsAttribution-NoDerivatives 4.0 International*
dc.rights.urihttps://creativecommons.org/licenses/by-nd/4.0/*
dc.subjectBasalten_US
dc.subjectClinopyroxeneen_US
dc.subjectExperimenten_US
dc.subjectLithiumen_US
dc.subjectMarsen_US
dc.subjectPartitioningen_US
dc.titleEXPERIMENTAL DETERMINATION OF LITHIUM PARTITIONING BETWEEN CLINOPYROXENE AND MELTen_US
dc.typedissertation or thesisen_US
dcterms.licensehttps://hdl.handle.net/1813/59810.2
thesis.degree.disciplineGeological Sciences
thesis.degree.grantorCornell University
thesis.degree.levelMaster of Science
thesis.degree.nameM.S., Geological Sciences

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