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Submarine explosive eruptions of silicic magma: constraints on products and processes from modern sea-floor examples, ancient successions and experiments. Volcanoes are common on the sea-floor. Many have been the sites of devastating explosive eruptions throughout Earth history, producing thick layers of pumice and volcanic ash in both modern and ancient ocean basins. None of these events has been witnessed, hence, little is known about submarine explosive eruptions and the associated volcanoes. ....Submarine explosive eruptions of silicic magma: constraints on products and processes from modern sea-floor examples, ancient successions and experiments. Volcanoes are common on the sea-floor. Many have been the sites of devastating explosive eruptions throughout Earth history, producing thick layers of pumice and volcanic ash in both modern and ancient ocean basins. None of these events has been witnessed, hence, little is known about submarine explosive eruptions and the associated volcanoes. This detailed, multidisciplinary study will link exploration of modern explosive sea-floor volcanoes (western Pacific Ocean), field-work on older, submarine volcanic formations (Japan, Greece) and experiments that simulate explosive eruptions and their products. The results will elucidate sea-floor explosive volcanism and its contribution to the geology of ocean basins.Read moreRead less
Tectonostratigraphic controls on the localization of Archaean komatiite-hosted nickel-sulphide deposits and camps in the Yilgarn Craton. Nickel contributes $2 billion per year to Australia's export income. Currently 80% of that comes from nickel sulphide deposits in regional Australia that are expected to be exhausted within thirty years barring significant new discoveries. Although discovery rates have been declining, as the 'easy' targets have been found, there remains considerable potential f ....Tectonostratigraphic controls on the localization of Archaean komatiite-hosted nickel-sulphide deposits and camps in the Yilgarn Craton. Nickel contributes $2 billion per year to Australia's export income. Currently 80% of that comes from nickel sulphide deposits in regional Australia that are expected to be exhausted within thirty years barring significant new discoveries. Although discovery rates have been declining, as the 'easy' targets have been found, there remains considerable potential for future major discoveries. This project addresses the pressing need for new data and improved exploration techniques to enable industry to target new discoveries. As our nickel mines are located in remote communities such discoveries also have major benefits for regional Australia.Read moreRead less