Convergent margin metallogenic cycles: a window to secular changes in Earth’s tectonic evolution
Channel: GeoscienceAustralia
Date: 2021-04-30

Temporal and spatial distributions of convergent margin ore deposits with time reflect changes in tectonics. The data indicate stagnant-lid tectonics prior to 3100 Ma, shallow-breakoff subduction at 3100-800 Ma, and deep-breakoff subduction after 800 Ma.

About the Speaker:
David Huston has been a research scientist at Geoscience Australia since 1995. He is an economic geologist with expertise in the formation of zinc-lead deposits and an interest in the relationship between tectonics, supercontinents and metallogenesis.