Hadean mantle depletion and 3.95-Gyr subduction implied by North China rocks

Source: Nature Published: 11/11/2026, 08:00:00 Science & Research Reprinted 中文 NorthChina

Summary

Nature, Published online: 11 November 2026; doi:10.1038/s41586-026-11280-2 Analysis of a 3.95-Gyr-old trondhjemitic gneiss from eastern Hebei, China, reveals a composition suggesting a low-temperature altered basaltic source, that originated from a mantle depleted in the Hadean, was most likely transported to mantle depths through a transient subduction event and partially melted to produce the trondhjemite.

Original text(via Nature)

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