Many exposed high-pressure meta-serpentinites comprise a channelized network of olivine-rich veins that formed during dehydration at depth and allowed the fluid to escape from dehydrating rock. While previous studies have shown chemical heterogeneities in rocks can control formation olivine-enriched vein-like interconnected porosity networks on sub-millimeter scale, it is still unclear how thes...

The generation and migration of slab-derived fluids modulate subduction zone seismicity, arc magmatism, deep volatile cycling. However, the redox species oxygen fugacity ( f O 2 ) (hereafter expressed as log units relative to fayalite–magnetite–quartz buffer, ?FMQ) are highly debated. Here we conducted phase equilibria modeling on altered oceanic crust (AOC) serpentinites along typical geotherm...

Research subject. Nephrite and related rocks from the Nyrdvomenshor deposit in Polar Urals were studied. The is located exocontact of Rai-Iz ultramafic massif, confined to Main Ural Fault. was developed process geological exploration; a license has been issued for part deposit. Aim. To study nephrite alluvial deposit, formulate model its origin. Methods. Qualitative characteristics assessed vis...

Abstract Hydration, carbonation, and related metasomatism of mantle peridotite play a significant role in the global geochemical cycle. In this study, we combined an analysis carbonated serpentinite with hydrothermal experiments on carbonation Ca-metasomatism for samples from Manlay ophiolite, southern Mongolia to investigate that mechanism body after serpentinization. Samples show was either t...

The aim of this study is to determine the qualitative variability and relative presence sesquiterpene hydrocarbons in essential oils samples Teucrium montanum L. collected from two different substrate types. Four serpentinite four calcareous were obtained by method hydrodistillation aboveground plant parts. Based on results, it was shown that populations habitats synthesize 2 times more sesquit...