Wadi Ghadir ophiolite in the Egyptian Eastern Desert, which forms northern part of Nubian Shield, is considered as one best-preserved segments Neoproterozoic oceanic lithosphere on Earth. Primary melt calculations and thermodynamic modeling new geochemical data for pillow lavas dike complexes, integrated with comprehensive petrographic investigations, are here employed to unravel geodynamic evo...

Papua New Guinea (PNG) is located at the convergence edge of Pacific Plate and Indo-Australian Plate, consisting three units. There are chromium mineralization types in PNG. Based on national-scale geochemical mapping PNG during 2015–2018, 1399 samples stream sediments were collected from Highland Region, Peninsula, Islands. This paper preliminarily studied chromium’s background, spatial distri...

nain ophiolite melange is located 140 km east of isfahan. based on the geological studies, this area belongs to mesozoic ophiolite of urumieh – dokhtar zone, west of central iran. country rocks are pridotite and serpentinized pridotite. the pridotite rocks are composed of harzburgite, lherzolite and replacement dunite which is belong to spinel pridotite facies.paragenesis of ore minerals are ch...

Owing to the importance of serpentinites for planetary geochemical and geodynamic processes, there has been much work discerning origins their parent rocks, including distinguishing between derived from a subducting plate versus overlying mantle in exhumed subduction complexes. The island New Caledonia (SW Pacific Ocean) provides rare window into Cenozoic processes. is unique exposing both an e...

This study focuses on the use of petrology as a useful tool in construction applications (i.e., concrete). More specifically, this investigates how petrogenetic characteristics ultramafic rocks derived from ophiolite complexes (Veria–Naousa, Gerania) can act key for prediction final behaviour aggregates concrete aggregates. For reason, their petrographic, chemical and mineralogical were examine...

The article presents an overview of the main stages magmatism and ore mineralization copper other metals Tekturmas ophiolite belt related structures Central Kazakhstan. age, composition probable tectonic settings during formation Cu-Ni deposits in Kazakhstan associated with sulfide are discussed. includes formations three lithological types: basaltic Karamurun Kuzek formations, siliceous Bazarb...

The Meatiq basement, which is exposed beneath late Proterozoic nappes of supracrustal rocks in the Central Eastern Desert of Egypt, was affected by three metamorphic events. The ophiolite cover nappes show only the last metamorphic overprint. The M1 metamorphic event (T≥750 °C) is restricted to migmatized amphibolite xenoliths within the Um Ba∞anib orthogneiss in the structurally lowest parts o...

In hyperalkaline () fluids that have participated in low-temperature (<150) serpentinization reactions, the dominant form of C is often methane (), but origin this uncertain. To assess serpentinite aquifers within Samail Ophiolite, Oman, we determined fluid chemical compositions, analyzed taxonomic profiles fluid-hosted microbial communities, and measured isotopic compositions hydrocarbon gases...