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Abstract

High P-T experiments using either shock or diamond anvil cell compression play a fundamental role to reproduce seismic and in-situ observations of Earth’s composition and structure in the laboratory and have become more important since the discovery of the first super-Earth in 2005. However, shock compression experiments can only simulate very short events (e.g. asteroid impacts) whilst common diamond anvil cell (DAC) techniques are restricted to static, long lasting events (e.g. subduction of plates, deposition of material) leaving an intermediate, non-accessible strain rate interval (e.g. large scale collisions). Therefore, results obtained by the emerging piezo-driven dynamic DAC (dDAC) technique are crucial to understand the effect of those intermediate conditions and to compare between quasi-static (DAC) and shock compression experiments. Here we present fast compression studies of common gasket material (stainless steel, Re), common pressure calibrants (Pt, Au) as well as metals and single oxides of common Earth phases (Fe, FeO, MgO) in membrane DAC and dDAC conducted at the Extreme Conditions Beamline P02.2 at PETRA III, DESY, Germany.

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