نتایج جستجو برای: erebus
تعداد نتایج: 122 فیلتر نتایج به سال:
High-resolution Fourier transform infrared (FTIR) spectroscopy has been used to document the presence of hydrogen, to estimate its concentration, and to document its oxygen speciation in anorthoclase crystals and associated melt inclusions from Mount Erebus, Antarctica. Synchrotron-generated infrared radiation, 100 to 1000 times brighter than globar-generated infrared radiation, permits rapid c...
A fundamental assumption in paleomagnetism is that a geocentric axial dipole (GAD) geomagnetic field structure extends to the ancient field. Global paleodirectional compilations span 0–5-million year support GAD dominated with minor non-GAD contributions, however, paleointensity data over same period do not. In field, higher latitudes should preserve intensity, but current database suggests int...
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