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Geology and petrology of Ruapehu volcano and associated vents.
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N.M.R. studies of coal.
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Geology and petrology of the Tauhara Volcanic Complex, Taupo, New Zealand.
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Structural studies of selected smectites.
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Petrochemical and Sr isotope studies of lavas and xenoliths from Tongariro Volcanic Centre - implications for crustal contamination in calc-alkaline magmas.