Ontology highlight
ABSTRACT:
SUBMITTER: Shim SH
PROVIDER: S-EPMC2396716 | biostudies-literature | 2008 May
REPOSITORIES: biostudies-literature
Shim Sang-Heon SH Catalli Krystle K Hustoft Justin J Kubo Atsushi A Prakapenka Vitali B VB Caldwell Wendel A WA Kunz Martin M
Proceedings of the National Academy of Sciences of the United States of America 20080521 21
Intriguing seismic observations have been made for the bottom 400 km of Earth's mantle (the D'' region) over the past few decades, yet the origin of these seismic structures has not been well understood. Recent theoretical calculations have predicted many unusual changes in physical properties across the postperovskite transition, perovskite (Pv) --> postperovskite (PPv), that may provide explanations for the seismic observations. Here, we report measurements of the crystal structure of (Mg(0.91 ...[more]