Eur. J. Mineral., 33, 39–75, https://doi.org/10.5194/ejm-33-39-2021,https://doi.org/10.5194/ejm-33-39-2021, 2021
Water plays an important role in the physical properties (i.e., diffusivity, electrical conductivity, thermal conductivity, sound velocity, and rheology) of olivine, wadsleyite, and ringwoodite. Remarkably, there are numerous discrepancies and debates between experimental and theoretical studies. Here we provide a comprehensive review of the recent advances in the influence of water on the physical properties of olivine, wadsleyite, and ringwoodite, together with their applications.
Eur. J. Mineral., 34, 149–165, https://doi.org/10.5194/ejm-34-149-2022,https://doi.org/10.5194/ejm-34-149-2022, 2022
The previously unknown temperature gradient in Earth's largest layer is uniquely extracted from a seismology average, the only information available. Data used from laboratory studies are minimal and describe general behavior. Adding a new theory and data on heat transport properties provides flux (heat per area per time) and power (total wattage) vs. depth. Temperature vs. depth instead uses an additive constant, which is constrained by data on melting. I show the lower mantle is heating up.
Johannes Buchen, Wolfgang Sturhahn, Takayuki Ishii, and Jennifer M. Jackson
Eur. J. Mineral., 33, 485–502, https://doi.org/10.5194/ejm-33-485-2021,https://doi.org/10.5194/ejm-33-485-2021, 2021
We investigated the thermal vibrations of 57Fe atoms in the crystal structure of a high-pressure form of the oxyhydroxide compound (Al,Fe)OOH. The results of our nuclear resonant inelastic X-ray scattering experiments on single crystals show that 57Fe atoms vibrate at different frequencies and with different amplitudes when being displaced in different directions. This anisotropy of atomic vibrations is transmitted to related thermal properties and can be described using second-rank tensors.
Hamada, M., Ushioda, M., Fujii, T., and Takahashi, E.: Hydrogen
concentration in plagioclase as a hygrometer of arc basaltic melts:
Approaches from melt inclusion analyses and hydrous melting experiments,
Earth Planet. Sc. Lett., 365, 253–262,
Harlow, G.: The anorthoclase structures: the effects of temperature and
composition, Am. Mineral., 67, 975–996, 1982.
Harrison, R. J. and Salje, E. K. H.: X-ray diffraction study of the
displacive phase transition in anorthoclase, grain-size effects and surface
relaxations, Phys. Chem. Mineral., 21, 325–329,
Hayward, S. A. and Salje, E. K. H.: Displacive phase transition in
anorthoclase: The “plateau effect” and the effect of T1–T2 ordering on
the transition temperature, Am. Mineral., 81, 1332–1336,
Henderson, C. M. B.: An elevated temperature X-ray study of synthetic
disordered Na-K alkali feldspars, Contrib. Mineral. Petrol., 70, 71–79,
Hofmeister, A. M. and Rossman, G. R.: A model for the irradiative coloration
of smoky feldspar and the inhibiting influence of water, Phys. Chem.
Mineral., 12, 324–332, https://doi.org/10.1007/BF00654342, 1985.
Johnson, E. A. and Rossman, G. R.: A survey of hydrous species and
concentrations in igneous feldspars, Am. Mineral., 89, 586–600,
Johnson, E. A. and Rossman, G. R.: The behavior of hydrogen in plagioclase
feldspar at 800–1000∘: Implications for re-equilibration of
hydroxyl in volcanic phenocrysts, Am. Mineral., 98, 1779–1787,
Kroll, H. and Schmid-Beurmann, P.: Comment on “Water decreases displacive phase transition temperature in alkali feldspar” by Liu et al. (2018), Eur. J. Mineral., 32, 167–170, https://doi.org/10.5194/ejm-32-167-2020, 2020.
Liu, W. D., Yang, Y., and Xia, Q. K.: Reply to Kroll and Schmid-Beurmann's comment on “Water decreases displacive phase transition temperature in alkali feldspar” by Liu et al. (2018), Dataset, FigShare, https://doi.org/10.6084/m9.figshare.12275498, 2020.
Salje, E. H. K.: Raman spectroscopic investigation of the order parameter
bahaviour in hypersolvus alkali feldspar: displacive phase transition and
evidence for Na-K site ordering, Phys. Chem. Mineral., 13, 340–346,
Shuai, K. and Yang, X. Z.: Quantitative analysis of H-species in anisotropic
minerals by polarized infrared spectroscopy along three orthogonal
directions, Contrib. Mineral. Petrol., 172, 14,