Abstract Geochemical similarities between the continental crust and arc magmas have led to inference that subduction zones may be primary sites of crustal growth. Thus, it is necessary unravel petrogenetic mechanism(s) granitoid generation in subduction-related settings understand growth through magmatic differentiation processes. In this study, we focused on oceanic-continental zones. We analy...

Abstract The Ni-Cu-platinum group element (PGE) sulfide mineralization in the 1.85 Ga Sudbury impact structure occurs two discrete environments: (1) along or near basal contact, including disseminated to semimassive an inclusion-rich sublayer, fragmental underlying anatectic footwall breccia, and veins disseminations pseudotachylitic (2) inclusion-bearing quartz diorite phase of radial concentr...

The study employs geological and geo-electrical investigation of diorite deposits in south-eastern Nigeria. It involves analysis outcrops by measuring the electrical values properties different subsurface materials. locations were explored to assess overburden thickness, downward trend, total mineral resource, rock grade. results showed that is a with mean density 2.88 x 103 kg-3, 2.71 2.82 kg-...

New geochronological data and published structural and stratigraphic data show that two distinctly different ophiolitic assemblages formed in general proximity to one another at nearly the same time and were subsequently imbricated along a regional thrust zone. The Josephine ophiolite constitutes a complete oceanic crust and upper mantle sequence which lies within the western Jurassic belt of t...

The Traveler Rhyolite-Katahdin Pluton Igneous Complex of of the Lower Devonian age in Northcentral Maine consists of two penecontemporaneous but genetically independent magmatic episodes. The earlier, voluminous episode includes the Traveler Rhyolite and the Katahdin Granite, whereas the slightly younger episode is comprised of minor intrusions of Horserace Quartz Diorite, Harrington Lake Porph...

The corundum is found in the rocks of Berit metaophiolite Eastern Anatolia, near Doğanşehir a province Malatya. Metaophiolitic consist mainly garnet metagabbro, granulite, amphibolite, mylonitic amphibole schist, pyroxenite, orthopyroxenite, harzburgite, serpentinized dunite and diorite units. Corundum occurrences are mostly pyroxenites, amphibolites, peridotites granulites. Their colors change...