Serpentinization reactions produce highly reduced waters that have hyperalkaline pH and can high concentrations of H 2 CH 4 . Putatively autotrophic methanogenic archaea been identified in the subsurface Samail Ophiolite, Sultanate Oman, though strategies to overcome dissolved inorganic carbon limitation remain be fully understood. Here, we recovered metagenome assembled genomes (MAGs) applied ...

A common deviation from typical subduction models occurs when thrust sheets of oceanic crust and upper-mantle rocks are emplaced over more buoyant continental lithosphere. The archetypal example ophiolite obduction is the Semail in United Arab Emirates (UAE)-Oman orogenic belt, formed obducted onto Arabian margin during Late Cretaceous. Strait Hormuz syntaxis, northern extent UAE-Oman mountains...

Celadonite (K[Mg2+,Fe2+][Fe3+,Al3+](Si4O10)(OH2)) is a common void-filling mineral in ocean floor and ophiolite lavas that forms during low-temperature, off-axis, hydrothermal alteration. Its occurrence provides important information about the sink of K from seawater into upper oceanic crust. New age determinations for celadonitic samples ~20 km section Troodos ophiolite, along with published a...

Abstract This paper provides an overview of research on core from Oman Drilling Project Hole BT1B and the surrounding area, plus new data calculations, constraining processes in Tethyan subduction zone beneath Samail ophiolite. The area is underlain by gently dipping, broadly folded layers allochthonous Hawasina pelagic sediments, metamorphic sole ophiolite, Banded Unit peridotites at base mant...

High-precision dating of the metamorphic sole ophiolites can provide insight into tectonic evolution and subduction zone processes. To understand initiation beneath a young, well-preserved, well-characterized ophiolite, we performed coupled zircon laser-ablation inductively mass spectrometry (LA-ICP-MS) trace element analyses high-precision isotope dilution-thermal ionization (ID-TIMS) U-Pb on ...

The Urals is one of the reference mobile belts mafic type characterized by a wide development ophiolites which are associated with numerous deposits chromites significant industrial importance. In this regard, estimation age rocks ophiolite association will be useful for analyzing regularities formation chromite deposits. This work presented results dating chromite-bearing Kluchevskoy mafic–ult...