Hirose / Brodholt / Lay Post-Perovskite

The Last Mantle Phase Transition
1. Auflage 2013
ISBN: 978-1-118-67249-5
Verlag: John Wiley & Sons
Format: PDF
Kopierschutz: Adobe DRM (»Systemvoraussetzungen)

E-Book, Englisch, 288 Seiten, E-Book

Reihe: Geophysical Monograph Series

Published by the American Geophysical Union as part of theGeophysical Monograph Series, Volume 174.
Discovery of the perovskite to post-perovskite phase transition inMgSiO3, expected to occur for deep mantle conditions,was first announced in April 2004. This immediately stimulatednumerous studies in experimental and theoretical mineral physics,seismology, and geodynamics evaluating the implications of a majorlower mantle phase change. A resulting revolution in ourunderstanding of the D" region in the lowermost mantle iswell underway. This monograph presents the multidisciplinaryadvances to date ensuing from interpreting deep mantleseismological structures and dynamical processes in the context ofthe experimentally and theoretically determined properties of thepost-perovskite phase change; the last silicate phase change likelyto occur with increasing pressure in lowermost mantle rocks.

Autoren/Hrsg.

Hirose, Kei

Brodholt, John

Lay, Thorne

Yuen, David

Inhaltsverzeichnis

Preface
Charles T. Prewitt vii
An Introduction to Post-Perovskite: The Last Mantle PhaseTransition
Kei Hirose, John Brodholt, Thorne Lay, and David A. Yuen1
Section I: Mineral Physics (Experimental)
Review of Experimental Studies on Mantle Phase Transitions
Takehiko Yagi 9
Discovery of Post-Perovskite Phase Transition and the Nature ofD" Layer
Kei Hirose 19
Effect of Iron on the Properties of Post-PerovskiteSilicate
Wendy L. Mao, Andrew J. Campbell, Vitali B. Prakapenka, RussellJ. Hemley, and Ho-kwang Mao 37
Electronic Transitions and Spin States in the Lower Mantle
Jie Li 47
Lattice-Preferred Orientation of Lower Mantle Materials andSeismic Anisotropy in the D" Layer
Daisuke Yamazaki and Shun-ichiro Karato 69
Section II: Mineral Physics (Theoretical)
Thermodynamic Properties and Stability Field of MgSiO3Post-Perovskite
Renata M. Wentzcovitch, Koichiro Umemoto, Taku Tsuchiya, and JunTsuchiya 79
The High-Temperature Elasticity of MgSiO3 Post-Perovskite
Stephen Stackhouse and John P. Brodholt 99
Effect of Chemistry on the Physical Properties of Perovskite andPost-Perovskite
Razvan Caracas and Ronald E. Cohen 115
Section III: Seismology
Reconciling the Post-Perovskite Phase With SeismologicalObservations of Lowermost Mantle Structure
Thorne Lay and Edward J. Garnero 129
Predicting a Global Perovskite and Post-Perovskite PhaseBoundary
Daoyuan Sun, Don Helmberger, Xiaodong Song, and Stephen P.Grand 155
Seismic Anisotropy of Post-Perovskite and the LowermostMantle
James Wookey and John-Michael Kendall 171
Constraints on the Presence or Absence of Post-Perovskite in theLowermost Mantle From
Long-Period Seismology
Christine Houser 191
Section IV: Dynamics
Mantle Dynamics and the D" Layer: Impacts of the PostPerovskite Phase
W.R. Peltier 217
Influence of the Post-Perovskite Transition on Thermal andThermo-Chemical Mantle Convection
Paul J. Tackley, Takashi Nakagawa, and John W. Hernlund229
The Dynamical Influences From Physical Properties in the LowerMantle and Post-Perovskite
Phase Transition
David A. Yuen, Ctirad Matyska, Ondr¡ej C¡adek, andMasanori Kameyama 249
Deformation-Induced Mechanical Instabilities at the Core-MantleBoundary
Nick Petford, Tracy Rushmer, and David A. Yuen 271