4 documents found

Dissertation

Enigmatic Intraplate Volcanism : a geochronological and geochemical approach...

The dissertation at hand comprises three independent chapters The first chapter contains for the first time a comprehensive data set from the enigmatic Marie Byrd Seamount province including morphological, geochronological, and geochemical data, combined with additional data for the De Gerlache and...
Dissertation

Magmatic evolution and REE mineralization in the early Cambrian Jbel Boho...

The igneous rocks of Jbel Boho emerged in three phases: an initial phase with alkaline volcanism followed by the intrusion of a syenitic pluton and later the emplacement of a dyke swarm. The Jbel Boho alkaline complex shows some interesting aspects of hydrothermal REE mineralization in the late differentiation...
Dissertation

Geochronology and Geochemistry of the Tristan-Gough Hotspot Track

The major goals of this study were to investigate the age distribution of volcanism along the Tristan-Gough volcanic track and the Rio Grande Rise with a detailed highquality 40Ar/39Ar age data set on mineral separates, to evaluate geochemical variations along and across the Tristan-Gough hotspot track...
Dissertation

SO208 Plumeflux : distribution of Galápagos plume material in the equatorial...

The main objective of this Dissertation is the investigation of the distribution of Galápagos plume material in the equatorial East Pacific. It provides a more detailed view on the Galápagos plume and the adjacent Galápagos Spreading Center (GSC; also known as Cocos-Nazca-Spreading Center (CNS)) and...