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Title: Compression of a multiphase mantle assemblage: Effects of undesirable stress and stress annealing on the iron spin state crossover in ferropericlase: Stresses and HS-LS Crossover in (Mg,Fe)O

Abstract

Using synchrotron-based X-ray diffraction, we explore characteristic signatures for nonhydrostaticstresses and their effect on the spin state crossover of ferrous iron in (Mg, Fe)O ferropericlase (Fp) uponcompression in a two-phase mixture which includes an Al- and Fe-bearing bridgmanite (Bm). Here, we observe aninfluence of nonhydrostatic stresses on the spin state crossover starting pressure and width. The undesirablestresses discussed here include uniaxial deviatoric stress evolving in the diamond anvil cell and effects ofintergrain interaction. And while the former leads to a pressure overestimation, the latter one lowers the pressure ofthe onset for the high-spin to low-spin electronic transition in Fe 2+ in ferropericlase (Mg, Fe)O with respect tohydrostatic conditions.

Authors:
 [1];  [2];  [3];  [4]
  1. Yale Univ., New Haven, CT (United States). Dept. of Geology and Geophysics; Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). German Electron Synchrotron DESY in the Helmholtz Association
  2. Univ. of Bayreuth (Germany). Geo Inst.
  3. Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab.
  4. Yale Univ., New Haven, CT (United States). Dept. of Geology and Geophysics
Publication Date:
Research Org.:
Carnegie Inst. of Washington, Argonne, IL (United States). Geophysical Lab.
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1379196
Grant/Contract Number:  
NA0002006; NA0001974; FG02-99ER45775; AC02-06CH11357; FG02-94ER14466; EAR-0955824
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Solid Earth
Additional Journal Information:
Journal Volume: 121; Journal Issue: 5; Journal ID: ISSN 2169-9313
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES

Citation Formats

Glazyrin, Konstantin, Miyajima, Nobuyoshi, Smith, Jesse S., and Lee, Kanani K. M. Compression of a multiphase mantle assemblage: Effects of undesirable stress and stress annealing on the iron spin state crossover in ferropericlase: Stresses and HS-LS Crossover in (Mg,Fe)O. United States: N. p., 2016. Web. doi:10.1002/2015JB012321.
Glazyrin, Konstantin, Miyajima, Nobuyoshi, Smith, Jesse S., & Lee, Kanani K. M. Compression of a multiphase mantle assemblage: Effects of undesirable stress and stress annealing on the iron spin state crossover in ferropericlase: Stresses and HS-LS Crossover in (Mg,Fe)O. United States. doi:10.1002/2015JB012321.
Glazyrin, Konstantin, Miyajima, Nobuyoshi, Smith, Jesse S., and Lee, Kanani K. M. Mon . "Compression of a multiphase mantle assemblage: Effects of undesirable stress and stress annealing on the iron spin state crossover in ferropericlase: Stresses and HS-LS Crossover in (Mg,Fe)O". United States. doi:10.1002/2015JB012321. https://www.osti.gov/servlets/purl/1379196.
@article{osti_1379196,
title = {Compression of a multiphase mantle assemblage: Effects of undesirable stress and stress annealing on the iron spin state crossover in ferropericlase: Stresses and HS-LS Crossover in (Mg,Fe)O},
author = {Glazyrin, Konstantin and Miyajima, Nobuyoshi and Smith, Jesse S. and Lee, Kanani K. M.},
abstractNote = {Using synchrotron-based X-ray diffraction, we explore characteristic signatures for nonhydrostaticstresses and their effect on the spin state crossover of ferrous iron in (Mg, Fe)O ferropericlase (Fp) uponcompression in a two-phase mixture which includes an Al- and Fe-bearing bridgmanite (Bm). Here, we observe aninfluence of nonhydrostatic stresses on the spin state crossover starting pressure and width. The undesirablestresses discussed here include uniaxial deviatoric stress evolving in the diamond anvil cell and effects ofintergrain interaction. And while the former leads to a pressure overestimation, the latter one lowers the pressure ofthe onset for the high-spin to low-spin electronic transition in Fe2+ in ferropericlase (Mg, Fe)O with respect tohydrostatic conditions.},
doi = {10.1002/2015JB012321},
journal = {Journal of Geophysical Research. Solid Earth},
number = 5,
volume = 121,
place = {United States},
year = {Mon May 30 00:00:00 EDT 2016},
month = {Mon May 30 00:00:00 EDT 2016}
}

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Cited by: 5 works
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Works referenced in this record:

Finite strain isotherm and velocities for single-crystal and polycrystalline NaCl at high pressures and 300°K
journal, January 1978


Calibration of the ruby pressure gauge to 800 kbar under quasi-hydrostatic conditions
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Hydrostatic limits of 11 pressure transmitting media
journal, March 2009

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