Fig. 2: Lava samples description with estimated quenching rates. | Communications Earth & Environment

Fig. 2: Lava samples description with estimated quenching rates.

From: Metastable liquid immiscibility in the 2018–2021 Fani Maoré lavas as a mechanism for volcanic nanolite formation

Fig. 2

a Photo of a representative dredge lava sample from the Fani Maoré eruption. Areas 1, 2, and 3 delimit the different lava flow facies and studied areas. b Calculated average quenching/cooling rates as a function of lava thickness. TGmin and TGmax represent respectively the minimum and the maximum of glass transition temperature of the Fani Maoré samples27. c Back-scattered electron images acquired by SEM (BSE-SEM) for each lava facies on the MAY15-DR150301 sample. d Uncorrected Raman spectra acquired at different distances from the lava flow margin of the MAY15-DR150301 sample. Gray areas 1 and 2 correspond to the range in which the signature of the Boson peak is typically observed and to the most intense band representative of the occurrence of Fe clustering (amorphous and/or crystalline), respectively.

Back to article page