caa a22 4500 463217306 CHVBK 20180405153201.0 cr unu---uuuuu 170326e20070401xx s 000 0 eng 10.1007/s00269-006-0136-4 doi (NATIONALLICENCE)springer-10.1007/s00269-006-0136-4 The compressibility of Fe- and Al-bearing phase D to 30GPa [Elektronische Daten] [Konstantin Litasov, Eiji Ohtani, Akio Suzuki, Kenichi Funakoshi] High-pressure in situ X-ray diffraction experiment of Fe- and Al-bearing phase D (Mg0.89Fe0.14Al0.25Si1.56H2.93O6) has been carried out to 30.5GPa at room temperature using multianvil apparatus. Fitting a third-order Birch-Murnaghan equation of state to the P-V data yields values of V 0 =86.10±0.05 Å3; K 0=136.5±3.3GPa and K′=6.32±0.30. If K′ is fixed at 4.0 K 0=157.0±0.7GPa, which is 6% smaller than Fe-Al free phase D reported previously. Analysis of axial compressibilities reveals that the c-axis is almost twice as compressible (K c =93.6±1.1GPa) as the a-axis (K a =173.8±2.2GPa). Above 25GPa the c/a ratio becomes pressure independent. No compressibility anomalies related to the structural transitions of H-atoms were observed in the pressure range to 30GPa. The density reduction of hydrated subducting slab would be significant if the modal amount of phase D exceeds 10%. Springer-Verlag, 2006 Phase D nationallicence Equation of state nationallicence High pressure nationallicence Synchrotron radiation nationallicence Litasov Konstantin Institute of Mineralogy, Petrology and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, 980-8578, Sendai, Japan aut Ohtani Eiji Institute of Mineralogy, Petrology and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, 980-8578, Sendai, Japan aut Suzuki Akio Institute of Mineralogy, Petrology and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, 980-8578, Sendai, Japan aut Funakoshi Kenichi SPring-8, Japan Synchrotron Radiation Research Institute, Kouto, 678-5198, Hyogo, Japan aut Physics and Chemistry of Minerals Springer-Verlag 34/3(2007-04-01), 159-167 0342-1791 34:3<159 2007 34 269 https://doi.org/10.1007/s00269-006-0136-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00269-006-0136-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Litasov Konstantin Institute of Mineralogy, Petrology and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, 980-8578, Sendai, Japan aut NATIONALLICENCE 700 1- Ohtani Eiji Institute of Mineralogy, Petrology and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, 980-8578, Sendai, Japan aut NATIONALLICENCE 700 1- Suzuki Akio Institute of Mineralogy, Petrology and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, 980-8578, Sendai, Japan aut NATIONALLICENCE 700 1- Funakoshi Kenichi SPring-8, Japan Synchrotron Radiation Research Institute, Kouto, 678-5198, Hyogo, Japan aut NATIONALLICENCE 773 0- Physics and Chemistry of Minerals Springer-Verlag 34/3(2007-04-01), 159-167 0342-1791 34:3<159 2007 34 269 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer