Abstract The unexpected intersection of rhyolitic magma and retrieval quenched glass particles at the Iceland Deep Drilling Project-1 geothermal well in 2009 Krafla, Iceland, provide unprecedented opportunities to characterize genesis, storage, behavior subsurface silicic magma. In this study, we analyzed complete time series retrieved after was intersected, terms distribution, chemistry, vesic...

The geology, mineralogy, and geochemistry of the Spetsugli high-germanium coal deposit in Pavlovsk coalfield were studied. is characterized by complex polyelemental composition ores can be evaluated as a rare metal-coal deposit. metal-bearing coals are abnormally high, tens or even hundreds times greater than mean contents for brown world, Ge, Sb, Hg, W, Li, Be, Cs, As. Somewhat less anomalous ...

Abstract The scarcity of historical rhyolite eruptions means that volcanological and petrological studies past are a key tool for assessing the potential future hazardous activity improving interpretations unrest signals. For last 18 ky, Laguna del Maule (LdM) volcanic complex in Chile has erupted primarily rhyolites but with differing magma compositions, eruption styles eruptive volumes. Rapid...