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As part of my PhD I collated and analysed a large geochemical dataset from Montserrat. This comprised major and trace element analyses, coupled with high-precision Pb, Nd and Sr isotope data. This dataset was used to unravel previously unrecognised magmatic processes occurring on Montserrat, with implications for the relationship of regional tectonics to magma genesis in the Lesser Antilles Arc.
I have also employed petrological analysis, to examine the detailed petrology of basaltic eruptions on Montserrat using electron microprobe analyses and SEM with the University of Cambridge. This study has helped us to understand the sub-surface magmatic processes, timescales and volatile budgets of basaltic systems compared to the conventional andesitic systems on the island of Montserrat.
Publications:
Cassidy, M., Watt, S.F.L., Talling, P.J., Palmer, M.R., Edmonds M., Jutzeler, M., Wall-Palmer, D., Coussens, M., Gernon, T., Manga, M., Taylor, R.N., Michalik, A., Inglis, E., Breitkreuz, C., Boudon, G., McCanta, M.C., Adachi, T., Hornbach, M.J., Colas, S.L., Endo, D., Fujinawa, A., Kataoka, K.S., Maeno, F., Tamura, Y., Wang, F., Ishizuka, O., Le Friant, A., and Shipboard Science Party ' Magmatism following unloading by volcanic edifice collapse is mafic, deep and rapid' Geophysical Research Letters (in review)
Cassidy, M., Edmonds, M., Watt, S.F.L., Palmer, M.R., Gernon, T., ‘Arc basalt origin by hybridisation in andesite-dominated arcs’. Journal of Petrology. 10.1093/petrology/egv002 (in press)
Cassidy, M., Taylor, R.N., Palmer, M.R, Cooper, R., Stenlake C., Trofimovs, J., (2012) Tracking the magmatic evolution of an island arc volcano: Insights from a high-precision Pb isotope record of Montserrat, Lesser Antilles. Geochem. Geophys. Geosyst. 13, Q05003 doi:10.1029/2012GC004064
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