Tracing carbonate dissolution in subducting sediments by zinc and magnesium isotopes

Recycled Carbonate‐Bearing Silicate Sediments in the Sources of Circum‐Mediterranean K‐Rich Lavas: Evidence From Mg‐Zn Isotopic Decoupling

“…Liu et al., 2017; Pichat et al., 2003; Sweere et al., 2018), but indistinguishable from that of MORB (0.27 ± 0.06‰; J. Huang et al., 2018; Z.‐Z. Wang et al., 2017) and carbonate‐bearing silicate sediments (0.26 ± 0.08‰; Qu et al., 2022; Figure 4b).…”

“…Wang et al., 2015), carbonate sediments (Teng, 2017 and references therein), carbonate‐bearing silicate sediments (K.‐J. Huang et al., 2013; Qu et al., 2022; S.‐J. Wang et al., 2015; Wimpenny et al., 2014) and <110 Ma intraplate alkali basalts in East Asia (compiled in Table S5 in Supporting Information S1).…”

“…Huang et al, 2018;Z.-Z. Wang et al, 2017) and carbonate-bearing silicate sediments (0.26 ± 0.08‰; Qu et al, 2022; Figure 4b).…”

“…In this study, we selected a flysch sediment sample from Prelević et al (2008) (06FL03; Table S4 in Supporting Information S1) with high SiO 2 (62.3 wt%) and CaO (10.9 wt%) contents from the Vardar ophiolitic suture zone (Serbia). This flysch contains ∼19.5 wt% of carbonates and has a relatively high Ca/Ti ratio (27.2) typical of carbonate-bearing sediments (carbonates >10 wt% and Ca/Ti > 10; Figure S1 in Supporting Information S1; Table S1 in Supporting Information S1; Qu et al, 2022), and can be regarded as the crustal component representative of carbonate-bearing silicate sediments (Prelević et al, 2005). All the above samples (n = 40) have been well studied in terms of petrology, chemistry and Sr-Nd-Pb isotopic compositions; detailed descriptions can be found in Prelević et al (2012Prelević et al ( , 2015Prelević et al ( , 2008Prelević et al ( , 2005.…”

“…Li et al, 2010; S.-J Wang et al, 2015),. carbonate sediments(Teng, 2017 and references therein), carbonate-bearing silicate sediments (K.-J Huang et al, 2013;Qu et al, 2022Wang et al, 2015;Wimpenny et al, 2014).…”