Modeling Bright Gully Deposits' Formation in Hale Crater, Mars: Implications for Recent Liquid Water

Persistent Link:
http://hdl.handle.net/10150/193349
Title:
Modeling Bright Gully Deposits' Formation in Hale Crater, Mars: Implications for Recent Liquid Water
Author:
Kolb, Kelly Jean
Issue Date:
2008
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:
This study aims at uncovering the formation mechanism of the recent bright gully deposits observed on Mars in order to assess the viability of liquid water involvement. I use a high resolution topography model as input into a kinematic model to assess whether or not a dry granular flow could form the bright gully deposits seen in Hale Crater. I investigate a dry mechanism due to the difficulty of producing water on the martian surface under present-day pressure and temperature conditions. I examine a range of particle sizes, flow thicknesses, and upslope initiation points to examine how these parameters affect the run-out distances of flows. The results show that multiple combinations of parameters could produce flows that travel to within the observed deposits' boundaries. The results suggest that the recent bright gully deposits are not evidence of recent liquid water on the surface of Mars.
Type:
text; Electronic Thesis
Keywords:
Mars; gullies; flow; modeling; debris flows
Degree Name:
MS
Degree Level:
masters
Degree Program:
Planetary Sciences; Graduate College
Degree Grantor:
University of Arizona
Advisor:
McEwen, Alfred S.
Committee Chair:
McEwen, Alfred S.

Full metadata record

DC FieldValue Language
dc.language.isoENen_US
dc.titleModeling Bright Gully Deposits' Formation in Hale Crater, Mars: Implications for Recent Liquid Wateren_US
dc.creatorKolb, Kelly Jeanen_US
dc.contributor.authorKolb, Kelly Jeanen_US
dc.date.issued2008en_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.abstractThis study aims at uncovering the formation mechanism of the recent bright gully deposits observed on Mars in order to assess the viability of liquid water involvement. I use a high resolution topography model as input into a kinematic model to assess whether or not a dry granular flow could form the bright gully deposits seen in Hale Crater. I investigate a dry mechanism due to the difficulty of producing water on the martian surface under present-day pressure and temperature conditions. I examine a range of particle sizes, flow thicknesses, and upslope initiation points to examine how these parameters affect the run-out distances of flows. The results show that multiple combinations of parameters could produce flows that travel to within the observed deposits' boundaries. The results suggest that the recent bright gully deposits are not evidence of recent liquid water on the surface of Mars.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
dc.subjectMarsen_US
dc.subjectgulliesen_US
dc.subjectflowen_US
dc.subjectmodelingen_US
dc.subjectdebris flowsen_US
thesis.degree.nameMSen_US
thesis.degree.levelmastersen_US
thesis.degree.disciplinePlanetary Sciencesen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorMcEwen, Alfred S.en_US
dc.contributor.chairMcEwen, Alfred S.en_US
dc.identifier.proquest2755en_US
dc.identifier.oclc659749788en_US
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