English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The intracrystalline distribution of Mg and Fe 2+  on the M1 and M2 octahedral sites in high-P C2/c (Mg,Fe)SiO 3  clinopyroxene has been determined on quenched samples using  57 Fe Mössbauer spectroscopy. Although the recovered samples that were measured had the low-P (P2 1 /c) structure, the ordering state of the high-P polymorph is believed to have been preserved because the high-P C2/c → low-P P2 1 /c transformation occurred at room temperature during the final stages of decompression of the experiments. Under such con­ditions significant cation diffusion is unlikely. Low temperature (81 K) Mössbauer spectra indicate that Fe 2+  is strongly ordered onto the M2 sites, with an average K D  Å 4.0(8) for the intersite exchange reaction:

Intersite partitioning of Mg and Fe in Ca-free high-pressure C2/c clinopyroxene