Effects of hydrostaticity on the structural stability of carbonates at lower mantle pressures: the case study of dolomite
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Efthimiopoulos, Ilias; Germer, Marisa; Jahn, Sandro; Harms, Martin; Reichmann, Hans Josef; Speziale, Sergio; Schade, Ulrich; Sieber, Melanie Jutta; Koch-Müller, Monika
Description
We have conducted high pressure far-infrared absorbance and Raman spectroscopic investigations on a natural iron-free dolomite sample up to 40 GPa. Comparison between the present observations and literature results unraveled the effect of hydrostatic conditions on the high pressure dolomite polymorph adopted close to 40 GPa, i.e. the triclinic Dol-IIIc modification. In particular, non-hydrostatic conditions impose structural disorder at these pressures, whereas hydrostatic conditions allow the...[Show more]
Collections | ANU Research Publications |
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Date published: | 2019 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/202550 |
Source: | High Pressure Research |
DOI: | 10.1080/08957959.2018.1558223 |
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01_Efthimiopoulos_Effects_of_hydrostaticity_on_2019.pdf | 2.07 MB | Adobe PDF | Request a copy |
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