Phase transition and density of subducted MORB crust in the lower mantle
K Hirose, N Takafuji, N Sata, Y Ohishi - Earth and Planetary Science Letters, 2005 - Elsevier
Phase relations, mineral chemistry, and density of a natural mid-oceanic ridge basalt
(MORB) composition were investigated up to 134 GPa and 2300 K by a combination of in …
(MORB) composition were investigated up to 134 GPa and 2300 K by a combination of in …
Phase relations in hydrous MORB at 18–28 GPa: implications for heterogeneity of the lower mantle
KD Litasov, E Ohtani - Physics of the Earth and Planetary Interiors, 2005 - Elsevier
The phase relations in hydrous and anhydrous mid-ocean ridge basalt were determined at
pressures of 18–28GPa. Liquidus phase relations in hydrous and anhydrous MORB are …
pressures of 18–28GPa. Liquidus phase relations in hydrous and anhydrous MORB are …
Elasticity of Hydrated Al‐Bearing Stishovite and Post‐Stishovite: Implications for Understanding Regional Seismic VS Anomalies Along Subducting Slabs in the …
Seismic studies have found seismic scatterers with− 2 to− 12% shear velocity anomalies
along some subducting slabs at 700–1900 km depth. The ferroelastic post‐stishovite …
along some subducting slabs at 700–1900 km depth. The ferroelastic post‐stishovite …
High hydrogen solubility in Al-rich stishovite and water transport in the lower mantle
Stishovite is an important phase in subducting oceanic crust. The post-garnet assemblage
from a precursor eclogite lithology contains up to 25% stishovite at pressures above 25 GPa …
from a precursor eclogite lithology contains up to 25% stishovite at pressures above 25 GPa …
High-pressure phase transition and equation of state of hydrous Al-bearing silica
Stishovite, a rutile-structured polymorph of SiO2, is a main component of subducted basaltic
lithologies in the lower mantle. At mid lower-mantle depths, a second-order ferroelastic …
lithologies in the lower mantle. At mid lower-mantle depths, a second-order ferroelastic …
Hydrogen solubility of stishovite provides insights into water transportation to the deep Earth
M Chen, C Yin, D Chen, L Tian, L Liu, L Kang - Solid Earth, 2024 - se.copernicus.org
Water dissolved in nominally anhydrous minerals (NAMs) can be transported to deep
regions of the Earth through subducting slabs, thereby significantly influencing the …
regions of the Earth through subducting slabs, thereby significantly influencing the …
Hydrogen incorporation in stishovite at high pressure and symmetric hydrogen bonding in δ-AlOOH
First-principles calculations of stishovite (SiO2), δ-AlOOH, and stishovite–δ-AlOOH solid
solutions reveal that coupled substitutions of Al3+ and H+ for Si4+ provide a means for …
solutions reveal that coupled substitutions of Al3+ and H+ for Si4+ provide a means for …
Raman spectroscopy of water-rich stishovite and dense high-pressure silica up to 55 GPa
Recent studies have shown that mineral end-member phases (δ-AlOOH phase, phase H,
and stishovite) with rutile-type or modified rutile-type crystal structures and solid solutions …
and stishovite) with rutile-type or modified rutile-type crystal structures and solid solutions …
High-pressure EXAFS study of vitreous up to 44 GPa
High-pressure extended x-ray absorption fine-structure measurements were performed on
amorphous GeO 2 over increasing and decreasing pressure cycles at pressures up to 44 …
amorphous GeO 2 over increasing and decreasing pressure cycles at pressures up to 44 …
Elasticity of stishovite and acoustic mode softening under high pressure by Brillouin scattering
F Jiang, GD Gwanmesia, TI Dyuzheva… - Physics of the Earth and …, 2009 - Elsevier
Brillouin scattering measurements on single-crystal stishovite, a high-pressure polymorph of
SiO2, were carried out to 22GPa. Acoustic velocities in three 30-μm thick crystal platelets of …
SiO2, were carried out to 22GPa. Acoustic velocities in three 30-μm thick crystal platelets of …