High-precision zircon age spectra record the dynamics and evolution of large open-system silicic magma reservoirs

Lorenzo Tavazzani,Jörn-Frederik Wotzlaw,Rita Economos,Silvano Sinigoi,Gabriella Demarchi,Dawid Szymanowski,Oscar Laurent,Olivier Bachmann,Cyril Chelle-Michou

Earth and Planetary Science Letters（2023）

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摘要

•U-Pb CA-ID-TIMS dates of zircon from plumbing system of a Permian caldera.•Distribution of ages interpreted through a new zircon saturation model.•Relative decrease of zircon mass with time implies monotonic cooling.•Late peak in zircon crystallization indicates episodic increase in heat supply.•Evidence for open-system processes preserved in zircon record of super-eruptions.

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关键词

high-precision,open-system

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