It may be significant that Koidu eclogites have on average higher FeO contents than the other Archaean eclogite suites (Fig. 2b ), which cannot be explained by higher pressure of melting or by advanced degrees of differentiation during protolith formation 26 .
← all excerpts
Evidence for a dominantly reducing Archaean ambient mantle from two redox proxies, and low oxygen fugacity of deeply subducted oceanic crust.
1
—
—