4-4-4-4-4-4-4-4-4-4-4-4-4 From: Patrick Hayman <patrick.hayman@xxxxxxxxxx> Dear All, We are pleased to offer a fully-funded PhD position in early terrestrial melt petrogenesis. A summary of the project and research team follows: The mineralogy and composition of deep cratonic mantle xenoliths (garnet harzburgites) and erupted high-MgO lavas (Archaean komatiites) leave no doubt that the early Earth mantle experienced very advanced melting. It remains a hotly debated topic in which petrological context and tectonic regime such melting occurred. One significant knowledge gap is the petrogenesis of Archaean and Paleoproterozoic mafic and ultramafic rocks. Our multi-disciplinary team (5 academics, 3 PhD candidates and 1 Research Assistant) is funded by an Australian Research Council Discovery grant to investigate this topic with new experimental, petrological, empirical, and microstructural research. We seek to complement the team with a PhD candidate hosted at Queensland University of Technologyâ??s School of Earth and Atmospheric Sciences, supervised by Dr Patrick Hayman. The candidate will build a global database using published material and infill sparsely covered time periods by collecting new samples. This dataset will be used to produce a systematic petrological (rather than geochemical) analysis of Archaean and Paleoproterozoic mafic-ultramafic rocks to assess changes through time and how they could relate to the evolving mantle potential temperature, tectonic mode and metallogeny of the Earth. The candidate will also have access to state-of-the-art analytical facilities for investigation and will benefit from new thermodynamic melting models developed by the team. The required qualifications for this position are: a completed Honours or Masterâ??s degree in Earth Sciences; a demonstrated record of excellence in igneous or metamorphic petrology (ideally through a degree research project); experience conducting field work; an aptitude for careful laboratory work; and experience in the use of thermodynamic modelling software. For candidates whose first language is not English, there is the additional requirement for IELTS language proficiency. The start-date of the position is Q4 2022. Interested and suitably qualified candidates are encouraged to contact Dr Hayman (patrick.hayman@xxxxxxxxxx) with a letter of motivation and a CV addressing the position requirements. 4-4-4-4-4-4-4-4-4-4-4-4-4 ------------------------------