Iron from a geochemical viewpoint. Understanding toxicity/pathogenicity mechanisms in iron-bearing minerals with a special attention to mineral fibers
Iron and its role as soul of life on Earth is addressed in this review as iron is one of the most
abundant elements of our universe, forms the core of our planet and that of telluric (ie, Earth …
abundant elements of our universe, forms the core of our planet and that of telluric (ie, Earth …
Stability of iron-bearing carbonates in the deep Earth's interior
The presence of carbonates in inclusions in diamonds coming from depths exceeding 670
km are obvious evidence that carbonates exist in the Earth's lower mantle. However, their …
km are obvious evidence that carbonates exist in the Earth's lower mantle. However, their …
Sr[C2O5] is an Inorganic Pyrocarbonate Salt with [C2O5]2– Complex Anions
D Spahr, J König, L Bayarjargal… - Journal of the …, 2022 - ACS Publications
The synthesis of a novel type of carbonate, namely of the inorganic pyrocarbonate salt Sr
[C2O5], which contains isolated [C2O5] 2–-groups, significantly extends the crystal chemistry …
[C2O5], which contains isolated [C2O5] 2–-groups, significantly extends the crystal chemistry …
Synthesis of calcium orthocarbonate, Ca2CO4-Pnma at PT conditions of Earth's transition zone and lower mantle
We show, by single-crystal diffraction studies in laser-heated diamond-anvil cells, that
Ca2CO4 orthocarbonate, which contains CO44− tetrahedra, can be formed already at~ 20 …
Ca2CO4 orthocarbonate, which contains CO44− tetrahedra, can be formed already at~ 20 …
Synthesis and Structure of Pb[C2O5]: An Inorganic Pyrocarbonate Salt
D Spahr, J König, L Bayarjargal… - Inorganic …, 2022 - ACS Publications
We have synthesized Pb [C2O5], an inorganic pyrocarbonate salt, in a laser-heated
diamond anvil cell (LH-DAC) at 30 GPa by heating a Pb [CO3]+ CO2 mixture to≈ 2000 …
diamond anvil cell (LH-DAC) at 30 GPa by heating a Pb [CO3]+ CO2 mixture to≈ 2000 …
Raman spectroscopy and x-ray diffraction of at lower mantle pressures
The exceptional ability of carbon to form sp 2 and sp 3 bonding states leads to a great
structural and chemical diversity of carbon-bearing phases at nonambient conditions. Here …
structural and chemical diversity of carbon-bearing phases at nonambient conditions. Here …
Tetrahedrally Coordinated sp3-Hybridized Carbon in Sr2CO4 Orthocarbonate at Ambient Conditions
D Spahr, J Binck, L Bayarjargal, R Luchitskaia… - Inorganic …, 2021 - ACS Publications
We have synthesized the orthocarbonate Sr2CO4, in which carbon is tetrahedrally
coordinated by four oxygen atoms, at moderately high pressures [20 (1) GPa] and high …
coordinated by four oxygen atoms, at moderately high pressures [20 (1) GPa] and high …
Phase stabilities of and -II studied by Raman spectroscopy, x-ray diffraction, and density functional theory calculations
Carbonates are the major hosts of carbon on Earth's surface and their fate during subduction
needs to be known to understand the deep carbon cycle. Magnesite (MgCO 3) is thought to …
needs to be known to understand the deep carbon cycle. Magnesite (MgCO 3) is thought to …
Diamond formation in the deep lower mantle: a high-pressure reaction of MgCO3 and SiO2
Diamond is an evidence for carbon existing in the deep Earth. Some diamonds are
considered to have originated at various depth ranges from the mantle transition zone to the …
considered to have originated at various depth ranges from the mantle transition zone to the …
Single-crystal diffraction at the high-pressure Indo-Italian beamline Xpress at Elettra, Trieste
In this study the first in situ high-pressure single-crystal X-ray diffraction experiments at
Xpress, the Indo-Italian beamline of the Elettra synchrotron, Trieste (Italy), are reported. A …
Xpress, the Indo-Italian beamline of the Elettra synchrotron, Trieste (Italy), are reported. A …