Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Elise Knittle"'
Autor:
Cara E. Vennari, Elise Knittle, E. F. O'Bannon, Abby Kavner, Quentin Williams, K. L. S. Sawchuk
Publikováno v:
Physics and Chemistry of Minerals. 46:623-637
Infrared and Raman spectra of the ABX4 compound anglesite (PbSO4) were collected to 43 GPa at 300 K in three separate pressure media. A major transition in the spectra initiates at 23 GPa that is characterized by shifting and/or splitting of most of
Publikováno v:
Physics and Chemistry of Minerals. 42:83-93
BaCO3 is examined under pressure, and following laser heating at pressure, to characterize bonding changes associated with different phases of this material. Infrared spectroscopy is utilized to probe the vibrational spectrum of witherite to 8 GPa an
Publikováno v:
American Mineralogist. 97:241-252
The infrared spectra of natural samples of muscovite, biotite, and phlogopite are characterized to pressures of ~30 GPa, as is the Raman spectrum of muscovite to ~8 GPa. Both far-infrared and mid-infrared data are collected for muscovite, and mid-inf
Publikováno v:
Physics of the Earth and Planetary Interiors. 136:93-105
The thermodynamic stability of hydrous B-type phases relative to hydrous β- and γ-phases is examined. The stability of phase B (Mg12Si4O19(OH)2) and superhydrous B (Mg10Si3O14(OH)4) relative to hydrous β-phase (with an end-member formula of Mg7Si4
Publikováno v:
Journal of Physics and Chemistry of Solids. 63:1927-1933
The indirect energy gap and electrical resistivity of FeS 2 -pyrite have been measured at high pressures and 300 K using optical absorption spectroscopy and electrical conductivity measurements. Absorption spectra extend to ∼28 GPa, while resistivi
Publikováno v:
Physics and Chemistry of Minerals. 28:630-640
We present Raman and infrared spectra of gypsum to 21 GPa at 300 K. Our measurements encompass the internal modes of the (SO4)−4 group that lie between 400 and 1150 cm−1, hydroxyl-stretching vibrations between 3200 and 3600 cm−1, and a libratio
Publikováno v:
Geophysical Research Letters. 28:1875-1878
We have measured the volume and lattice parameters of Fe3C-cementite as a function of pressure to 73 GPa using synchrotron-based x-ray diffraction. Several samples were laser heated and temperature-quenched from >1,500 K while held at high-pressure.
Autor:
Elise Knittle, Quentin Williams
Publikováno v:
Physics of the Earth and Planetary Interiors. 100:49-59
A simple method for evaluating the compatibility of different alloying constituents with the elastic properties of the outer core is presented. This approach depends primarily on the value of the pressure derivative of the bulk modulus ( K ′) of po
Publikováno v:
High-Pressure Research: Application to Earth and Planetary Sciences
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::065cc4961804a2caed2eea32f0446cb2
https://doi.org/10.1029/gm067p0297
https://doi.org/10.1029/gm067p0297