Carbonatite melt in type Ia gem diamond
AM Logvinova, A Shatskiy, R Wirth, AA Tomilenko… - Lithos, 2019 - Elsevier
Monocrystalline type Ia diamonds with octahedral growth morphology prevail among
lithospheric diamonds, including precious stones. Unlike less common 'fibrous' diamonds …
lithospheric diamonds, including precious stones. Unlike less common 'fibrous' diamonds …
Solidus and melting of carbonated phlogopite peridotite at 3–6.5 GPa: Implications for mantle metasomatism
It is well known that water significantly lowers mantle solidi. But it turns out this paradigm is
not always true. Here, we studied the interaction of K-rich carbonate melts with the natural …
not always true. Here, we studied the interaction of K-rich carbonate melts with the natural …
Origin of K-rich diamond-forming immiscible melts and CO2 fluid via partial melting of carbonated pelites at a depth of 180–200 km
Melt inclusions in kimberlitic and metamorphic diamonds worldwide range in composition
from potassic aluminosilicate to alkali-rich carbonatitic and their low-temperature derivative …
from potassic aluminosilicate to alkali-rich carbonatitic and their low-temperature derivative …
The system K2CO3–CaCO3 at 3 GPa: link between phase relations and variety of K–Ca double carbonates at ≤ 0.1 and 6 GPa
Abstract The K 2 CO 3–CaCO 3 system is important both in materials science as a source of
new nonlinear optical materials and in the Earth science as a sub-system modeling phase …
new nonlinear optical materials and in the Earth science as a sub-system modeling phase …
Confocal Raman spectroscopic study of melt inclusions in olivine of mantle xenoliths from the Bultfontein kimberlite pipe (Kimberley cluster, South Africa): Evidence for …
Identifying the composition of primary/primitive mantle melts is crucial for understanding the
mantle's evolution and mantle‐derived magmatism. Melt inclusions in mantle xenoliths …
mantle's evolution and mantle‐derived magmatism. Melt inclusions in mantle xenoliths …
Pyroxene-carbonate reactions in the CaMgSi2O6 ± NaAlSi2O6 + MgCO3 ± Na2CO3 ± K2CO3 system at 3–6 GPa: Implications for partial melting of …
The reactions between pyroxenes and carbonates have been studied in the CaMgSi 2 O 6+
MgCO 3 (Di+ 2Mgs), CaMgSi 2 O 6+ NaAlSi 2 O 6+ 2MgCO 3 (Di+ Jd+ 2Mgs), CaMgSi 2 O …
MgCO 3 (Di+ 2Mgs), CaMgSi 2 O 6+ NaAlSi 2 O 6+ 2MgCO 3 (Di+ Jd+ 2Mgs), CaMgSi 2 O …
Recycled carbonates elevate the electrical conductivity of deeply subducting eclogite in the Earth's interior
The elevated pressure and temperature conditions encountered by a subducted slab
entering the deep Earth can substantially alter the chemical composition and physical …
entering the deep Earth can substantially alter the chemical composition and physical …
Metasomatic interaction of the eutectic Na-and K-bearing carbonate melts with natural garnet lherzolite at 6 GPa and 1100–1200 C: toward carbonatite melt …
The range of carbonatite melts in equilibrium with the subcontinental lithospheric mantle
(SCLM) under geothermal conditions is limited by alkali-rich near-eutectic compositions …
(SCLM) under geothermal conditions is limited by alkali-rich near-eutectic compositions …
Disordered Aragonite: The New High-Pressure, High-Temperature Phase of CaCO3
PN Gavryushkin, N Sagatov… - The Journal of …, 2020 - ACS Publications
Phases of CaCO3 stabilized at high pressures and temperatures are the potential agents of
the global carbon cycle, transferring oxidized carbon in deep Earth's interiors and thus are of …
the global carbon cycle, transferring oxidized carbon in deep Earth's interiors and thus are of …
The System K2CO3–CaCO3–MgCO3 at 3 GPa: Implications for Carbonatite Melt Compositions in the Shallow Continental Lithosphere
Potassic dolomitic melts are believed to be responsible for the metasomatic alteration of the
shallow continental lithosphere. However, the temperature stability and range of …
shallow continental lithosphere. However, the temperature stability and range of …