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Fletta eftir efnisorði "Kristallafræði"

Fletta eftir efnisorði "Kristallafræði"

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    Melt inclusion constraints on petrogenesis of the 2014–2015 Holuhraun eruption, Iceland 
    Hartley, Margaret E.; Bali, Eniko; Maclennan, John; Neave, David A.; Halldórsson, Sæmundur Ari (Springer Nature, 2018-01-12)
    The 2014–2015 Holuhraun eruption, on the Bárðarbunga volcanic system in central Iceland, was one of the best-monitored basaltic fissure eruptions that has ever occurred, and presents a unique opportunity to link petrological and geochemical data with ...
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    QM/MM calculations reveal a bridging hydroxo group in a vanadium nitrogenase crystal structure 
    Benediktsson, Bardi; Þórhallsson, Albert Þ.; Bjornsson, Ragnar (Royal Society of Chemistry (RSC), 2018)
    A new 1.2 Å crystal structure of vanadium nitrogenase, isolated under turnover conditions, recently revealed a light atom ligand (OH or NH) replacing the bridging S2B sulfide of the FeV cofactor. QM/MM calculations on the new structure now reveal the ...
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    Silicon and oxygen isotopes unravel quartz formation processes in the Icelandic crust 
    Kleine, Barbara Irene; Stefansson, Andri; Halldórsson, Sæmundur Ari; Whitehouse, M.J.; Jónasson, Kristján (European Association of Geochemistry, 2018-04)
    Quartz formation processes in the Icelandic crust were assessed using coupled δ18O and δ30Si systematics of silica deposits formed over a wide temperature range (<150 to >550 °C). Magmatic quartz reveals δ18O (-5.6 to +6.6 ‰) and δ30Si (-0.4 ± 0.2 ‰) ...