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Type: Thesis
Title: How hot is Antarctica? Constraining crustal heat production
Author: Shizas, C.
Issue Date: 2016
School/Discipline: School of Physical Sciences
Abstract: Antarctica is more influential in relation to sea level rise and has a lower level of outcrop than any other continent on the planet. The main factor in Antarctica’s influence on sea level is its reaction to the warming oceans surrounding it, and this is influenced by basement heat flux and crustal heat production. In this study, a new Gamma Ray Spectrometry method was developed and calibrated to allow the fast, accurate calculation of a rock’s heat production through analysis of the smallest of hand samples without destroying the samples themselves. The method is applied to a large collection of hand samples collected throughout Antarctica. The resulting data are compiled into a dataset of Antarctic bedrock geochemistry and compared to ice flow velocity of similar areas in an attempt to give insight into the influence of crustal heat production on ice flow velocity and Antarctica’s reaction to global warming. Although the dataset is subject to bias based on a lack of objectivity during collection, it can be argued that a basic correlation can be seen between heat production and ice flow velocity. Comparing heat production values to geological ages also shows that younger rock types generally have higher heat production values than those of the Proterozoic or Archaean eras.
Dissertation Note: Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2016
Where: Antarctica
Keywords: Honours; Geology; Antarctica; geochemistry; geophysics; heat production; radiogenic elements; gamma ray spectrometry
Description: This item is only available electronically.
Provenance: This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exceptions. If you are the author of this thesis and do not wish it to be made publicly available, or you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at:
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