The Chakabeishan (CKBS) deposit is the first pegmatite-type Li-Be discovered in eastern North Qaidam Tectonic Belt (NQTB) of Tibetan Plateau. correct understanding its petrogenesis and precise determination formation age are great significance for further regional prospecting discovery new economically valuable rare-metal deposits. Therefore, a systematic study texture, major-element compositio...

The Evje-Iveland pegmatite field in Norway contains pegmatites that are known for their rare scandium mineralization. petrogenesis of these has been debated the literature nearly a century. Hypotheses origin pegmatite-forming melt have included either anatexis host amphibolite vapor-absent conditions, wherein is scavenged from amphibolite; or magmatic differentiation, concentrated through proce...

The Dorchap Dyke Swarm hosts the first recorded occurrence of lithium–caesium–tantalum (LCT) pegmatites in Victoria, Australia. Syn-orogenic emplacement pegmatite dykes occurred along a northwest-trending shear system during Benambran Orogeny. Pegmatites are derived from fractionated melt associated with Mount Wills Granite, which is an S-type, peraluminous granite originating supracrustal melt...

The Dakalasu No.1 pegmatitic rare-element deposit is a representative of Be-Nb-Ta pegmatites in Altai, Xinjiang, China. Beryl the most important beryllium-carrying mineral pegmatite. To constrain concentration mechanism Be, we conducted study textural relationships and chemical compositions (major trace elements) beryl, along with microthermometry Raman spectroscopy on beryl-hosted fluid inclus...

Abstract Quartz-diorites, monzogranites and pegmatites are the main rock units in studied area. The occur as zoned pockets within with zonal arrangement: border, wall, intermediate, core zones. wall zone have enrichment of radioactive RREs-bearing minerals. K-feldspar, plagioclase quartz essential minerals, whereas uranothorite, columbite, zircon, xenotime, monazite, sphalerite pyrite accessori...