Improving Early Permian-Triassic chronostratigraphic correlation and the apparent polar wander path of Gondwana: A magnetostratigraphic investigation of the Kiaman Reverse Superchron

Mercedes Elise Belica

Research output: ThesisDoctoral Thesis

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Abstract

This thesis explores Permian-Triassic paleomagnetism and isotopic geochronology of the Sydney and Karoo Basins along the
southern Panthalassan margin of Gondwana. Normal polarities within the Gerringong Volcanics (Sydney Basin) confirm the end
of the Kiaman Reverse Superchron with a 40AR-39AR (plagioclase) age of 265.05 ± 0.46 Ma. Magnetostratigraphic data from the overlying Narrabeen Group locate the Permian-Triassic Boundary within a zone of normal polarity. Magnetostratigraphic and U-Pb isotopic data establish an Early-Middle Permian age for the Ecca Group (Karoo Basin), however, paleomagnetic data from
the upper Balfour Formation support widespread remagnetization of the sedimentary rocks located further east.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • The University of Western Australia
Supervisors/Advisors
  • George, Annette, Supervisor
  • Denyszyn, Steven, Supervisor
  • Pisarevsky, Sergei, Supervisor
  • Tohver, Eric, Supervisor
Award date14 Dec 2017
DOIs
Publication statusUnpublished - 2017

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