Fig. 1 | Nature Communications

Fig. 1

From: Post-eruptive mobility of lithium in volcanic rocks

Fig. 1

Typical variability of groundmass crystallinity in high-grade welded ignimbrites. Glassy portions of the deposits (a, c) are preserved at the rapidly cooled upper and basal contacts while the slowly cooled central portions of the deposit are characterised by microcrystalline groundmass (a, b). Divisions on ruler are 1 cm, outcrop height ~15 m

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