Hydration and dehydration in Earth's interior
E Ohtani - Annual Review of Earth and Planetary Sciences, 2021 - annualreviews.org
Hydrogen and deuterium isotopic evidence indicates that the source of terrestrial water was
mostly meteorites, with additional influx from nebula gas during accretion. There are two …
mostly meteorites, with additional influx from nebula gas during accretion. There are two …
Silica-water superstructure and one-dimensional superionic conduit in Earth's mantle
Water in Earth's deep interior is predicted to be hydroxyl (OH−) stored in nominally
anhydrous minerals, profoundly modulating both structure and dynamics of Earth's mantle …
anhydrous minerals, profoundly modulating both structure and dynamics of Earth's mantle …
The melting of carbonated pelites from 70 to 700 km depth
D Grassi, MW Schmidt - Journal of Petrology, 2011 - academic.oup.com
Phase assemblages, melting relations and melt compositions of a dry carbonated pelite
(DG2) and a carbonated pelite with 1· 1 wt% H2O (AM) have been experimentally …
(DG2) and a carbonated pelite with 1· 1 wt% H2O (AM) have been experimentally …
Lower-mantle water reservoir implied by the extreme stability of a hydrous aluminosilicate
The source rocks for basaltic lavas that form ocean islands are often inferred to have risen
as part of a thermal plume from the lower mantle. These rocks are water-rich compared with …
as part of a thermal plume from the lower mantle. These rocks are water-rich compared with …
Superhydrous aluminous silica phases as major water hosts in high-temperature lower mantle
Water transported by subducted oceanic plates changes mineral and rock properties at high
pressures and temperatures, affecting the dynamics and evolution of the Earth's interior …
pressures and temperatures, affecting the dynamics and evolution of the Earth's interior …
Hydrous minerals and the storage of water in the deep mantle
E Ohtani - Chemical Geology, 2015 - Elsevier
Water is transported into the deep mantle via hydrous minerals in subducting slabs. During
subduction, a series of minerals in these slabs such as serpentine or chlorite, Mg–sursassite …
subduction, a series of minerals in these slabs such as serpentine or chlorite, Mg–sursassite …
Water concentration in single‐crystal (Al, Fe)‐bearing bridgmanite grown from the hydrous melt: Implications for dehydration melting at the topmost lower mantle
High‐quality single‐crystals of (Al, Fe)‐bearing bridgmanite, Mg0. 88 Fe3+ 0.065 Fe2+
0.035 Al0. 14Si0. 90O3, of hundreds of micrometer size were synthesized at 24 GPa and …
0.035 Al0. 14Si0. 90O3, of hundreds of micrometer size were synthesized at 24 GPa and …
Water speciation and hydrogen isotopes in hydrous stishovite: implications for the deep Earth water cycle
Stishovite is a key mineral for understanding the deep Earth water cycle because of its
potential as a main carrier for water into the transition zone and lower mantle. During …
potential as a main carrier for water into the transition zone and lower mantle. During …
The solidus of carbonated eclogite in the system CaO–Al2O3–MgO–SiO2–Na2O–CO2 to 32 GPa and carbonatite liquid in the deep mantle
K Litasov, E Ohtani - Earth and Planetary Science Letters, 2010 - Elsevier
Melting phase relations have been determined in a model carbonated eclogite (5wt.% CO2)
at 10.5–32.0 GPa and 1300–1850° C. The assemblage of silicate minerals coexisting with …
at 10.5–32.0 GPa and 1300–1850° C. The assemblage of silicate minerals coexisting with …
Evidence for the stability of ultrahydrous stishovite in Earth's lower mantle
The distribution and transportation of water in Earth's interior depends on the stability of
water-bearing phases. The transition zone in Earth's mantle is generally accepted as an …
water-bearing phases. The transition zone in Earth's mantle is generally accepted as an …