Hdl Handle:
http://hdl.handle.net/10150/194791
Title:
Water at the Phoenix landing site
Author:
Smith, Peter Hollingsworth
Issue Date:
2009
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The Phoenix mission investigated patterned ground and climate in the northern arctic region of Mars for 5 months starting May 25, 2008. A shallow ice table was uncovered by the robotic arm in a nearby polygon's edge and center at depths of 5-15 cm. In late summer snowfall and frost blanket the surface at night; water ice and vapor constantly interact with the soil. Analysis reveals an alkaline Ph with CaCO3, aqueous minerals, and salts making up several wt% of the soil; liquid water is implicated as having been important in creating these components. In combination with the oxidant perchlorate (~1 wt%), an energy source for terrestrial microbes, and a prior epoch of higher temperatures and humidity, this region may have been a habitable zone.
Type:
text; Electronic Dissertation
Keywords:
atmosphere; Ice; Mars; Phoenix; soil; Water
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Optical Sciences; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Wyant, James C.; Drake, Michael J.
Committee Chair:
Wyant, James C.; Drake, Michael J.

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleWater at the Phoenix landing siteen_US
dc.creatorSmith, Peter Hollingsworthen_US
dc.contributor.authorSmith, Peter Hollingsworthen_US
dc.date.issued2009en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe Phoenix mission investigated patterned ground and climate in the northern arctic region of Mars for 5 months starting May 25, 2008. A shallow ice table was uncovered by the robotic arm in a nearby polygon's edge and center at depths of 5-15 cm. In late summer snowfall and frost blanket the surface at night; water ice and vapor constantly interact with the soil. Analysis reveals an alkaline Ph with CaCO3, aqueous minerals, and salts making up several wt% of the soil; liquid water is implicated as having been important in creating these components. In combination with the oxidant perchlorate (~1 wt%), an energy source for terrestrial microbes, and a prior epoch of higher temperatures and humidity, this region may have been a habitable zone.en_US
dc.typetexten_US
dc.typeElectronic Dissertationen_US
dc.subjectatmosphereen_US
dc.subjectIceen_US
dc.subjectMarsen_US
dc.subjectPhoenixen_US
dc.subjectsoilen_US
dc.subjectWateren_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineOptical Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorWyant, James C.en_US
dc.contributor.advisorDrake, Michael J.en_US
dc.contributor.chairWyant, James C.en_US
dc.contributor.chairDrake, Michael J.en_US
dc.contributor.committeememberBoynton, Williamen_US
dc.contributor.committeememberMcEwen, Alfreden_US
dc.contributor.committeememberHartmann, William K.en_US
dc.identifier.proquest10248en_US
dc.identifier.oclc659750848en_US
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