Rb-Sr Radiometric Dating of Rocky Planetary Bodies via LA-ICPMS

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dc.contributor.advisorArevalo, Ricardoen_US
dc.contributor.authorAlmas, Kiranen_US
dc.contributor.departmentGeologyen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2021-09-23T05:32:50Z
dc.date.available2021-09-23T05:32:50Z
dc.date.issued2021en_US
dc.description.abstractConstraining ages of surface features on rocky objects in the Solar System provides fundamental insights about the flux of impactors through time (including the putative Late Heavy Bombardment), rates of tectonic and volcanic processes, and temporal context for detected organic compounds. Spaceflight instrumentation is being developed to characterize these ages in situ. An LA-ICPMS is suggested as a candidate for a planetary chronology mission, with Mars as a case study; the capability of the technique to measure Rb and Sr isotopic signatures in geological samples with adequate accuracy within the 200 Myr (2σ) precision benchmark presented in NASA’s Technology Roadmap is tested. Data are presented that reports on these metrics for 87Sr/86Sr ratios, and a Monte Carlo simulation models synthetic isochrons to evaluate the accuracy and precision limitations of this method. A minimum of 10 data points per sample is suggested to meet the NASA benchmark.en_US
dc.identifierhttps://doi.org/10.13016/epjn-npsu
dc.identifier.urihttp://hdl.handle.net/1903/28002
dc.language.isoenen_US
dc.subject.pqcontrolledGeochemistryen_US
dc.subject.pqcontrolledGeologyen_US
dc.subject.pquncontrolledchronologyen_US
dc.subject.pquncontrolledICPMSen_US
dc.subject.pquncontrolledisochronen_US
dc.subject.pquncontrolledradiometricen_US
dc.subject.pquncontrolledRb-Sren_US
dc.subject.pquncontrolledspaceflighten_US
dc.titleRb-Sr Radiometric Dating of Rocky Planetary Bodies via LA-ICPMSen_US
dc.typeThesisen_US

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