Auflistung Alle Publikationen nach Mitwirkenden "Speziale, Sergio"
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Phase Stability of Al‐Bearing Dense Hydrous Magnesium Silicates at Topmost Lower Mantle Conditions: Implication for Water Transport in the Mantle
Li, Xinyang; Speziale, Sergio; Koch‐Müller, Monika; Husband, Rachel Jane; Liermann, Hanns‐Peter (Geophysical Research Letters, 2022-08-26)In this study, we investigated the phase stability of Al‐free and Al‐bearing superhydrous phase B (shy‐B) up to 55 GPa and 2500 K. In comparison with Al‐free shy‐B, the incorporation of 11.7 wt.% Al2O3 in shy‐B expands the ... -
Radiometric Temperature Measurements in Nongray Ferropericlase With Pressure- Spin- and Temperature-Dependent Optical Properties
Accurate temperature determination is central to measurements of physical and chemical properties in laser-heated (LH) diamond anvil cells (DACs). Because the optical properties of samples at high pressure-temperature (P-T) ... -
Single‐Crystal Elasticity of Antigorite at High Pressures and Seismic Detection of Serpentinized Slabs
Satta, Niccolò; Grafulha Morales, Luiz Fernando; Criniti, Giacomo; Kurnosov, Alexander; Boffa Ballaran, Tiziana; Speziale, Sergio; Marquardt, Katharina; Capitani, Gian Carlo; Marquardt, Hauke (Geophysical Research Letters, 2022-08-26)The subduction of serpentinized slabs is the dominant process to transport “water” into Earth's mantle, and plays a pivotal role for subduction dynamics. Antigorite, the most abundant serpentine mineral in subduction ...