The Huangyangshan A-type granitic pluton, distributed along the thrust fault in Kalamaili region of East Junggar, Xinjiang, China, consists alkaline granite containing abundant dioritic enclaves that formed via magma mixing. Both host and contain sodic amphiboles. textural evidence indicates amphiboles crystallized as a magmatic phase both units. We determined major trace element contents from ...

The Napier Complex in Enderby Land and western Kemp is a unique component of the East Antarctic Shield because it records timeline crustal growth from Eo- to Neoarchean. It mainly composed enderbitic charnockitic gneisses granulites that were metamorphosed at ca. 2.5 Ga, locally 2.8 under high- ultra-high-temperature conditions. Despite generating scientific interest for several decades, geolog...

The oldest rocks in the Avalonian Antigonish Highlands of northern mainland Nova Scotia, Canada, are late Neoproterozoic (>618 Ma) volcanic and sedimentary Georgeville Group intruded by gabbroic/dioritic to granitic plutons. New U–Pb zircon ages presented here for five samples from plutons into James River (or) Keppoch formations have ranging ca. 615 604 Ma. They petrological characteristics...

The Sungun Cu-Mo porphyry deposit forms part of the Ahar–Arasbaran Magmatic Belt (AAMB). Its host Miocene stock is quartz monzonitic in composition and cut by intermediate dykes that post-date mineralization. These contain pyroxene enclaves ambiguous origin. Dykes microdiorite are observed within diorite dykes, whereas later three different kinds (diorite, hornfels) sizes between 1 10 cm. Encla...

The Omai intrusion-centred Au-quartz vein system, the largest Au producer presently operating in the Guyana Shield, was sampled for detailed U-Pb and Pb-Pb geochronology and petrological investigation. The age of a metavolcanic/sub-volcanic unit in the host rock sequence is 212092 Ma. Zircon analyses from the main body dioritic rocks give U-Pb ages of 209496, 2092911 and 2096+11/−10 Ma. Magmati...

The mineralogy and geochemistry of the weathered intercumulate-type anorthosite complex in Hadong district South Korea were investigated as a prospective area for rare earth resource exploration. In this area, gabbroic was intruded by rare-earth elements yttrium (REE)-bearing dioritic pegmatites (av. 242 ppm), which caused REE-enriched Fe–Ti orebody accumulation 857 ppm) near pegmatites. REE-be...

Mudstone samples from the Moreno (Upper Cretaceous-Paleocene) and Kreyenhagen (Eocene) formations are analysed using X-ray diffraction (XRD) fluorescence (XRF) to determine their mineralogy. Smectite (Reichweite R0) is predominant phyllosilicate present, 48% 71.7% bulk rock mineralogy (excluding carbonate cemented highly bio siliceous samples) 70% 98% of <2 μm clay fraction. Opal CT less so ...