Origin of carbonatites—liquid immiscibility caught in the act

J Berndt, S Klemme - Nature Communications, 2022 - nature.com
Carbonatites are rare but worldwide occurring igneous rocks and their genesis remains
enigmatic. Field studies show a close spatial but controversially debated genetic …

Ion chromatography: A comprehensive review of sample preparation methods for analysis of halogens and allied nonmetals in critically challenging inorganic matrices

N Muhammad, I Hussain, A Ali, L Noureen, Q He… - … of Chromatography A, 2024 - Elsevier
The inorganic matrices such as metal concentrates, steel, cement, glass, clay, coal, graphite,
rocks and sediments, ores etc. play a pivotal role in infrastructure development …

[HTML][HTML] High-precision measurement of chlorine in sphalerite by electron probe microanalysis: Method and application

D Zhang, YM Meng, XW Huang, SN Meng, RZ Hu… - Ore Geology …, 2024 - Elsevier
The halogen Cl is one of the sensitive indicators for the origin of ore-forming fluids. However,
accurate analysis of trace Cl in minerals or materials remains a challenge. Here, we …

[HTML][HTML] Fluorine abundance of the lunar magma ocean constrained by experimentally determined mineral-melt F partitioning

JJ Jing, J Berndt, S Klemme… - … et Cosmochimica Acta, 2024 - Elsevier
To quantify fluorine (F) evolution during lunar magma ocean (LMO) crystallization, high-
pressure, high-temperature experiments have been conducted to determine mineral-melt …

High precision measurement of trace F and Cl in olivine by electron probe microanalysis

D Zhang, Y Chen, B Su, C Qi, Q Mao - Progress in Earth and Planetary …, 2023 - Springer
Fluorine (F) and chlorine (Cl) are important volatiles in olivine and its high-pressure
polymorphs, which would significantly affect olivine phase transition, melting temperature …

The stability of antigorite in subduction zones revisited: the effect of F on antigorite stability and its breakdown reactions at high pressures and high temperatures, with …

S Flemetakis, C Tiraboschi, A Rohrbach… - … to Mineralogy and …, 2022 - Springer
We present new experimental data on the effect of F on the stability of antigorite and its
breakdown products at high pressures (2–6 GPa) and high temperatures (570–850° C). The …

Constraining the presence of amphibole and mica in metasomatized mantle sources through halogen partitioning experiments

S Flemetakis, S Klemme, A Stracke, F Genske, J Berndt… - Lithos, 2021 - Elsevier
We present experimentally determined partition coefficients (D min/melt) for F and Cl
between pargasite (amphibole), phlogopite (mica), clinopyroxene and basanitic melts. All …

Electron Probe Microanalysis measurement of F‐Cl‐Nb‐P for Geological Glasses

HL Zhang, G Zeng, C Zhang, WL Zhang… - Geostandards and …, 2022 - Wiley Online Library
Quantitative in situ electron probe microanalysis (EPMA) was applied to determine the F, Cl,
Nb and P contents of glass materials. Using reference glasses with low FeOT (< 10% m/m) …

The Fe (Ni)–C–N-phase diagram at 10 GPa—implications for nitrogen and carbon storage in the deep mantle

P Pangritz, A Rohrbach, C Vollmer, J Berndt… - … to Mineralogy and …, 2024 - Springer
Nitrogen is the most abundant element in the Earth's atmosphere, yet its geochemical
behavior and distribution among the various reservoirs (atmosphere, crust, mantle, and …

Thermal stability of F‐rich phlogopite and K‐richterite during partial melting of metasomatized mantle peridotite with implications for deep Earth volatile cycles

ES Steenstra, M Klaver, J Berndt… - Journal of …, 2024 - Wiley Online Library
Phlogopite and K‐richterite constitute important carrier phases for H and F in Earth's
lithosphere and mantle. The relative importance depends on their stabilities at high pressure …