Discrete simulations of density-driven volcanic deformation: Applications to Martian caldera complexes

Simple item page
dc.contributor.advisorMorgan, Julia K.en_US
dc.creatorZivney, Lindsay Laurelen_US
dc.date.accessioned2011-07-25T02:06:12Zen_US
dc.date.available2011-07-25T02:06:12Zen_US
dc.date.issued2010en_US
dc.description.abstractWe have carried out 2-D numerical simulations using the discrete element method (DEM) to investigate density-driven deformation in Martian volcanic edifices and how it affects the development of caldera complexes. These simulations demonstrate that the presence of a dense and weak cumulate body within a volcanic edifice strongly influences the volcano morphology and enhances volcanic spreading. The settling of a cumulate body generates distinctive structural and morphological features characteristic of Olympus Mons and Arsia Mons, including low flank slopes and pronounced summit calderas. We show that gravitational spreading of a cumulate body can play a primary role in the long-term development of calderas. We conclude that a cumulate body that is both shallow and wide could generate a single large depression similar to the Arsia-type caldera, while our simulations of a narrow cumulate body are capable of generating summit subsidence that is similar in dimension to the Olympus Mons caldera.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.callnoTHESIS GEOL. 2010 ZIVNEYen_US
dc.identifier.citationZivney, Lindsay Laurel. "Discrete simulations of density-driven volcanic deformation: Applications to Martian caldera complexes." (2010) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/62093">https://hdl.handle.net/1911/62093</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/62093en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectGeologyen_US
dc.subjectGeophysicsen_US
dc.titleDiscrete simulations of density-driven volcanic deformation: Applications to Martian caldera complexesen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentEarth Scienceen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Scienceen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
1485977.PDF
Size:
2.23 MB
Format:
Adobe Portable Document Format
Download
Collections
Rice University Theses and Dissertations