Time and length scales of crust-magma interaction in rift settings

Karakas, Ozge

Title:

Time and length scales of crust-magma interaction in rift settings

dc.contributor.advisor	Dufek, Josef
dc.contributor.author	Karakas, Ozge
dc.contributor.committeeMember	Newman, Andrew V.
dc.contributor.committeeMember	Huber, Christian
dc.contributor.committeeMember	Peng, Zhigang
dc.contributor.committeeMember	Mangan, Margaret T.
dc.contributor.department	Earth and Atmospheric Sciences
dc.date.accessioned	2016-08-22T12:21:08Z
dc.date.available	2016-08-22T12:21:08Z
dc.date.created	2015-08
dc.date.issued	2015-07-27
dc.date.submitted	August 2015
dc.date.updated	2016-08-22T12:21:08Z
dc.description.abstract	Understanding the processes that lead to magma emplacement and differentiation in the crust is of fundamental importance to science and society, as these magma bodies are important components of crustal growth and erupted products. During magma emplacement and residence in the Earth’s crust, magma thermally and chemically evolves as a function of several complex nonlinear magmatic processes. This thesis work focuses on rift settings and quantifying the time and length scales involved in the thermal and compositional evolution of crustal magmas. In order to give quantitative constraints, this research utilizes a novel thermal-petrographic numerical model that solves for conservation of mass and energy in response to magma emplacement and extensional tectonic forces. In particular, this work tests the sensitivity of tectonic extension rates on crustal magma evolution. General trends of magma evolution are characterized in various rift systems. In particular, the numerical model is applied to Salton Sea Geothermal Field as a natural setting. This work delivers detailed insights to the interaction of magma and crust in extensional tectonic settings. The outcomes address important topics in volcanology including the timescales of generation of evolved magmas, and the thermal and compositional conditions that lead to the compositional diversity observed in diverse settings.
dc.description.degree	Ph.D.
dc.format.mimetype	application/pdf
dc.identifier.uri	http://hdl.handle.net/1853/55543
dc.language.iso	en_US
dc.publisher	Georgia Institute of Technology
dc.subject	Thermal model
dc.subject	Crust-magma interaction, Extensional tectonics, Salton Sea Geothermal Field
dc.title	Time and length scales of crust-magma interaction in rift settings
dc.type	Text
dc.type.genre	Dissertation
dspace.entity.type	Publication
local.contributor.corporatename	School of Earth and Atmospheric Sciences
local.contributor.corporatename	College of Sciences
relation.isOrgUnitOfPublication	b3e45057-a6e8-4c24-aaaa-fb00c911603e
relation.isOrgUnitOfPublication	85042be6-2d68-4e07-b384-e1f908fae48a
thesis.degree.level	Doctoral