Fig. 2: Redox variations and associated geological events in the Tethyan domain.
From: Redox state of subducted sediments controls porphyry copper mineralization along the Tethyan belt
a Global sea-level curve43 and average surface temperature trends42; b Number of hydrocarbon source rocks38 and the proportion of global oil and gas reserves39,40. c Ore-forming ages and Cu–Au resources of Tethyan porphyry Cu deposits (Supplementary Data 1) alongside major oceanic anoxic events 26. d Zircon ∆FMQ variation over time, presented as binned averages with a bin size of 5 Myr. Error bars represent ±2 standard errors of the mean. e Degree of restriction in sedimentary basins, with regions of potential anoxia highlighted in red and areas of well-oxygenated waters shown in blue44.
