Table 12 in The Tumbarumba Basaltic Gem Field, New South Wales: In Relation to Sapphire-Ruby Deposits of Eastern Australia

Table 12. Comparative key mantle-normalised incompatible element ranges, selected primary Na-rich basalts, eastern Australian sapphire fields. basalt field no. analysesSnowyaBarringtonb OberoncNew Englandd Hoy, Qlde NE Tasf6107331SiO243.1–46.241.4–46.543.2–45.744.0–44.742.0–44.944.6MgO9.3–16.89.0–12.38.8–12.98.0–9.59.6–12.48.7Ka2O/Na2O0.24–0.470.19–0.370.20–0.450.45–0.480.39–0.490.31KN23–5425–5329–5433–5440–5726PN25–6524–6217–3227–6527–6519ZrN10–1710–2114–2713–2415–2114NbN80–19052–13256–12259–9859–12659RbN16–4816–5022–4633–3630–5025ThN59–14135–18824–7124–9430TaN122–22049–195 a this paper (4Bsn, 2AOB). b O’Reilly & Zhang (1995) and Sutherland & Fanning (2001) (3 Ne, 5Bsn, 2AOB). c Morris (1986) (5Bsn, 2AOB). d Coenraads (1994) (3AOB). e Sutherland & Robertson (unpublished data) (1Ne, 2AOB). f Sutherland et al. (1989) (1AOB). primitive mantle normalised values, based on Sun N & McDonough (1989). Ne, Nephelinite; Bsn, Basanite; AOB, Alkali Olivine Basalt.