Storage and eruption of silicic magma across the transition from dominantly effusive to caldera-forming states at an arc volcano (Santorini, Greece) by Druitt, Timothy H., Fabbro, Gareth N., Costa, Fidel

“…Based on previously published phase diagrams and melt inclusion volatile barometry for the Cape Riva dacite, we infer that in each case crystallization of plagioclase rims and orthopyroxene took place centuries to years prior to eruption owing to volatile-saturated decompression (± cooling) as the dacitic melts (plus entrained plagioclase antecrystic cores) ascended from the middle crust (10–16 km) into the upper crust (4–6 km), where they resided until eruption a few years to decades later. …”
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Enlightening of the low-dimensional high-TC superconductivity: bond contraction and electron dual polarization [低维高温超导的启示: 键收缩与电子双重极化] by Sun, Chang Qing

“…The dual polarization weakens the O:Cup interactions and lowers the vibration frequency of the Cup, reducing the effective mass of the CuP electrons with high group velocity for carrier transport between the adjacent O-Cu planes that are made of atomic vacancies and dipoles. The self-entrapment of the core and bonding electrons, and the localized polarization and O:Cup weakening may describe the effect of electron-phonon coupling. …”
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