PREFERRED LATTICE ORIENTATION IN PARTIALLY MELTED FAYALITE AGGREGATE AT HIGH PRESSURE
نویسندگان
چکیده
منابع مشابه
Preferred Orientation in Microstructures
The microstructures of eutectics between compounds were studied for systems MnO-MnS, NaCl-NaF, NaBr-NaF, LiF-NaF, and FeO-FeS. With the exception of FeS, all the compounds had the NaC1-type structure. In the systems having only NaC1-type structures, the lamellas of the two eutectic phases had matching crystal orientations. There was less consistency among the eutectic systems, however, than bet...
متن کاملA Plethora of Partially Melted Asteroids?
A number of recent quantitative mineralogical interpretations of S-type asteroids have identified compositions consistent with partially differentiated assemblages [e.g., 1-5]. However, partially differentiated meteorites (often designated as " primitive achon-drites ") constitute only a tiny fraction of the meteorite falls represented in terrestrial collections (~0.2% [6]). These two results w...
متن کاملLattice dynamics and superconductivity in cerium at high pressure.
We have measured phonon dispersion relations of the high-pressure phase cerium-oC4 (α' phase with the α-uranium crystal structure) at 6.5 GPa by using inelastic x-ray scattering. Pronounced phonon anomalies are observed, which are remarkably similar to those of α-U. First-principles electronic structure calculations reproduce the anomalies and allow us to identify strong electron-phonon couplin...
متن کاملPhonon triggered rhombohedral lattice distortion in vanadium at high pressure
In spite of the simple body-centered-cubic crystal structure, the elements of group V, vanadium, niobium and tantalum, show strong interactions between the electronic properties and lattice dynamics. Further, these interactions can be tuned by external parameters, such as pressure and temperature. We used inelastic x-ray scattering to probe the phonon dispersion of single-crystalline vanadium a...
متن کاملPartially melted, mica-bearing crust in Central Tibet
Surface wave tomography shows that the central Tibetan Plateau (the Qiangtang block) is characterized by S wave speeds as slow as 3.3 km/s at depths from 20–25 km to 45–50 km and S wave radial anisotropy of at least 4% (VSH> VSV) that is stronger in the west than the east. The depth of the Curie temperature for magnetite inferred from satellite magnetic measurements, the depth of the α-β quartz...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of the Geological Society of Japan
سال: 1976
ISSN: 0016-7630,1349-9963
DOI: 10.5575/geosoc.82.751