Fig. 9
From: Effusive crises at Piton de la Fournaise 2014–2015: a review of a multi-national response model
Scanning Electron Microscopy (SEM) imaging of the contamination phases found in quenched lava samples. a Image of the sampling pipe showing pipe interior and Zn coating. b Iron oxide flakes on the mold of the sampling tool (sample 0107–22, July 2001). c Nugget of iron half embedded in the quenched melt. A polished section (inset) shows a grain core of metallic Fe and a thin shell of hematite (sample 030827–1, August 2003). d Flake of Zn oxide half embedded in the quenched melt (sample 070405–1, April 2007). e Iron spherule with thin Zn oxide coating (sample 030827–1, August 2003). f Silicate spherule with coating of little oxidized Fe (FeO to Fe metal) (sample 77–16, November 1977)