Furthermore, rhyolites erupted during caldera events and immediate precursory activity in the JMVF are fayalite-bearing, as opposed to older inter-caldera and post-caldera rhyolites that lack fayalite ...
A KNOWLEDGE of the electrical conductivity of the Earth at various depths is of importance in many aspects of geomagnetism. It has been suggested 1 that the core of the Earth acts as a self ...
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