“…In his welcome commentary on our paper (Rochette et al 2018), Mizera (2019) challenges our preferred interpretation for the Australasian tektite (AAT) source: soil-covered old continental sediments, i.e., 10 Be-rich onto 10 Be-poor material. Blum et al's (1992) analysis of Sr and Nd isotopic ratios points toward Jurassic-Cretaceous sediments, such as those found in abundance in south Laos and east Thailand (Singsoupho et al, 2014).…”