Fig. 4: Comparison of elemental ratios of derived melt values between our JHZs (Jack Hills Zircons; red, yellow, cyan, and blue triangles) and those reported in ref. 6 (black circles) to modern lavas.
From: Eoarchean and Hadean melts reveal arc-like trace element and isotopic signatures
a Th-Nb proxy used to classify lavas from different regimes, where lunar and Martian samples are shown as possible stagnant-lid analogues62. Field legend: OIB lavas (Ocean Island Basalt; Blue), MOR lavas (Mid Oceanic Ridge; Red), Modern arc lavas (Green/Yellow). Data sources: MOR + OIB Lavas32; Arc lavas compiled from the GEOROC database (Island arcs: Aleutian arc, Honshu arc, Tonga, Mariana arc. Continental Arcs: Andean arc, Cascades, Alaskan peninsula); Lunar basalts62 and Martian meteorites62 b Dy/Yb proxy for calc-alkaline differentiation as well as for restite garnet along with the Th/Nb proxy. Data sources: MOR + OIB lavas29 Arc lavas from GEOROC; Lunar basalts63, Martian meteorites64. Primitive Mantle (PM; Black square)65. Trace element melt contents were derived from zircon using newly derived partition coefficients (Supplementary Fig. 5). Errors for our data are given in Supplementary Dataset 2. A modified version of this figure (Supplementary Fig. 8) is in the Supplementary information file that contains TTG (Tonalite-Trondjhemite-Granodiorite) fields (Data from GEOROC database).
