Mineral Deposits Studies Group

MDSG

Connect with us:

  • Facebook icon
  • Linkedin icon

Fully funded PhD project on titanite geochemistry in porphyry systems

Department of Earth Science and Engineering, Imperial College London and Department of Earth Sciences, Natural History Museum

 PhD Project 2017

Titanite occurrence and chemistry as a monitor of melt redox state, magmatic fertility and hydrothermal alteration in porphyry ore systems

The aim of this project is to establish titanite chemistry and crystallization history in a suite of igneous rocks and associated, propylitically altered, country rocks from selected magmatic-hydrothermal systems. Timing and conditions of formation of titanite will be constrained using a range of geothermobarometers and oxybarometers, and titanite chemistry will be modelled utilizing crystal-chemical considerations. By comparing results from barren granite-related environments (e.g. Augusta, Maine) with mineralized porphyry systems (e.g. Oyu Tolgoi, Mongolia) we will be able to assess whether a diagnostic fingerprint exists for titanite from mineralized systems. The chemistry of titanite in the propylitic domain will be considered in terms of precursor biotite or hornblende composition and the conditions of formation. Where possible, we aim to date titanite grains in order to provide a first-order constraint on models for the development of propylitic alteration halos.

We are looking for a well-qualified and highly motivated Earth Sciences/Geology graduate who wishes to carry out a cutting edge PhD in economic geology. Excellence in geochemistry and mineralogy are essential; experience of microanalytical techniques and statistical data evaluation are desirable. Involvement with the Imperial Student Chapter of the Society of Economic Geologists and outreach activities at the Natural History Museum will be encouraged.

For further details contact: j.wilkinson@nhm.ac.uk, and see Titanite_PhD_summary_Imperial_NHM_revised1