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Earth, Planets and Space
Fig. 8 | Earth, Planets and Space

Fig. 8

From: Vikrahraun—the 1961 basaltic lava flow eruption at Askja, Iceland: morphology, geochemistry, and planetary analogs

Fig. 8

Mineral and glass compositions are plotted temporally—with respect to event and lava texture. Open symbols denote rim analyses and colored symbols denote core analyses. The grey lines connect some core and rim pairs from the same crystal. Error bars are 1 s.d.% based on replicate standard analyses: see Additional file 3: Sheets 2–5. A Olivine compositions are presented with Fo# (molar Mg/[Mg + Fe2+]). B Plagioclase compositions are presented with An# (molar Ca/[Ca + Na + K]). C Clinopyroxene results are presented with En # (molar Mg/[Mg + FeTotal]). D Glass compositions are plotted on a TAS diagram and show the difference between surface and interstitial glass. Pahoehoe and vent samples measured mostly surface glass with minor interstitial glass and are basaltic

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