Gurenko, Andrey A; Schmincke, Hans-Ulrich (1998): Petrology and geochemistry of sideromelane glass shards from Pleistocene as layers north and south of Gran Canaria. PANGAEA, https://doi.org/10.1594/PANGAEA.666969, Supplement to: Gurenko, AA; Schmincke, H-U (1998): Petrology, geochemistry, S, Cl and F abundances, and S oxidation state of sideromelane glass shards from Pleistocene ash layers north and south of Gran Canaria (ODP Leg 157). Contributions to Mineralogy and Petrology, 131(1), 95-110, https://doi.org/10.1007/s004100050381