Carbonate minerals as a dominant carbon host can be transported to the Earth’s deep interior via subduction of oceanic lithosphere, and their physicochemical behavior potentially has significant influence on compositional heterogeneity physical properties in mantle. In this study, we measured electrical conductivity natural siderite at 1–3 GPa 100–700°C using complex impedance analyzer large vo...

Abstract Large calderas are among the main emitters of volcanic CO2, which is mainly supplied by deep degassing magmatic fluids. However, other sources non-magmatic CO2 can also occur due to intense interaction fluids, wide hydrothermal systems, and their host rocks. In particular, massive amounts released during unrest phases have been often detected before eruptions. An accurate assessment th...

Banded travertines are important parts of fissure ridge systems, but studies on geochemical characterization banded limited. This study investigated the lithofacies and stable carbon oxygen isotopic features from Xiagei (southwestern China) to examine their formation mechanisms. Petrographic analyses revealed two lithotypes: thick-laminated palisade crystalline crust thin-laminated composite cr...

Coal-fired heating is the main method of in China, causing serious air pollution and large amounts CO2 emissions. Decarbonizing important to reduce carbon emissions, choosing a suitable technical scheme conducive early realization neutrality China. Coal gas coal electricity transformation projects were carried out 2017 achieved remarkable effects. This study compares current domestic internatio...

Abstract The Chicxulub impact (in the northern Yucatan Penninsula, Mexico) marks Cretaceous-Paleogene (K-Pg) boundary and is implicated in one of five major extinctions. Researchers have examined ejecta from impact, most recently a drill core crater itself, yet processes chemical reactions occurring vapor plume are poorly constrained. Rounded carbonate particles, identified as accretionary lapi...

Abstract. High-pressure COH fluids have a fundamental role in variety of geological processes. Their composition terms volatile species can control the solidus temperature and carbonation/decarbonation reactions, as well influence amount solutes generated during fluid–rock interaction at depth. Over last decades, several systems been experimentally investigated to unravel effect upper-mantle co...

This work focuses on studying the removal of Titan Yellow (TY) dye, which is a water pollutant using three matrices layered double hydroxide (LDHs; M+2Al-HT), with M+2 = Ni, Co, or NiCo were synthesized co-precipitation technique in solution constant pH. The X-ray diffraction (XRD) pattern formed solids shows that phase LDH type average interlamellar distance (dspacing ≈ 7.595 Å). Fourier-trans...

We report time-resolved (TR) remote Raman spectra of minerals under supercritical CO(2) (approx. 95 atm pressure and 423 K) and under atmospheric pressure and high temperature up to 1003 K at distances of 1.5 and 9 m, respectively. The TR Raman spectra of hydrous and anhydrous sulphates, carbonate and silicate minerals (e.g. talc, olivine, pyroxenes and feldspars) under supercritical CO(2) (app...