نتایج جستجو برای: pegmatite

تعداد نتایج: 412  

Journal: :Geologica Balcanica 2022

The current study presents new geochronological and geochemical data for the Petrovitsa Pb-Zn deposit, Central Rhodopes, South Bulgaria. Based on in-situ U-Pb dating of titanites from pegmatites skarnified mineralized marbles, it aims to provide insights into pegmatite formation their relation hydrothermal system in region. Titanite is an abundant accessory mineral skarns within Madan ore distr...

Journal: :The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists 1944

Journal: :Minerals 2023

Laser-induced breakdown spectroscopy (LIBS) is a technology for compositional analysis that particularly effective light elements, Li, which critical commodity emerging green technologies. This study undertook by handheld LIBS of muscovite from the drill core, outcrop, and soil on Carolina Lithium Prospect (CLP) in Gaston County, North (USA), lies within Tin-Spodumene Belt (CTSB). Abundances al...

سلامی, صدیقه , سپاهی‌گرو, علی اصغر , معانی‌جو, محمد ,

Pegmatite-aplite dykes from north east of Lorestan Province is located about 25 km east of Boroujerd city and consists of three major zones, from outside to inside including graphic, layered and core zone that obviously shows the effect of fractional crystallization in pegmatites. Microprobe analysis performed on minerals (tourmaline, plagioclase and muscovite) from each three zones. Tourmaline...

Journal: :Frontiers in Scientific Research and Technology (Print) 2021

Rare-metals and rare earth mineralization has been observed in Wadi El Sheih older granitoids bearing uncommon mineralized pegmatite. This type of was recorded as distinguishable mega-crystals scattered within the Detailed mineralogical investigation carried out using different analytical techniques as: microscopic examinations, x-ray diffraction (XRD), scanning electron microscope (SEM) provid...

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