Physical Sciences and Mathematics Commons^™

Martian Xenon Components In Basaltic Shergottite Meteorites, Katherine Delene Ocker Stone

Doctoral Dissertations

Analyses of Chassigny, Nakhla, and ALH84001 reveal, in addition to a Xe component from the martian atmosphere, a second component loosely attributed to the martian "interior." This appears to be a mixture of solar- and fission- (²⁴⁴Pu) derived xenon components. The proportions are consistent in each meteorite but vary from meteorite to meteorite. The working hypothesis is that this variation reflects different contributions of solar (mantle-derived) and fission (crustal-derived) xenon to each parent melt.

This study focused on mineral separates from two basaltic shergottites, Shergotty and EETA79001 Lithology-B (EETA), chosen to reflect, as far as possible, the extremes …

Defining The Hayesville–Soque River And Allatoona Faults And An Ordovician Arc Assemblage Within The Central Blue Ridge Northwest Of Dahlonega, Georgia, David Jonathan Settles

Masters Theses

The goal of this research within the central Blue Ridge northwest of Dahlonega, Georgia, is to provide new information toward better understanding of the Allatoona(?)/ Hayesville/Gossan Lead fault and terrane boundary, and to provide convincing evidence of Ordovician arc-related igneous activity. The Hayesville-Soque River and Allatoona faults separate three distinct tectonostratigraphic assemblages in this area: the Coweeta Group, Great Smoky Group, and Dahlonega gold belt. The gold belt here contains metasandstone, pelitic schist, and mafic rocks of the Otto Formation and the Sally Free mafic complex, while the Great Smoky Group contains metasandstone and pelitic schist with abundant calc-silicate. The …