Paleozoic gneissic granitoids are an important lithologic component of the Shoo Fly Complex of the central Sierra Nevada, California. Field relations, petrographic, and geochemical studies indicate that the gneisses were originally intruded as a seri.es of plutons ranging from gabbro (oldest) to granite and granodiorite (median age) to syenite (youngest) with the granitoid types predominating. ...

The Shah-Kuh granitoid has intruded in the Triassic–Jurassic, pelitic and psammitic low-grade metamorphic rocks of the NE LutBlock, in Central Iran. Cordierite porphyroblasts are common in the southern pelitic sediments, but are rare in the northern psammiticrocks, in the contact aureole. Deformation fabrics in the contact aureole are well-preserved within the cordierite porphyroblasts. Therela...

The Karakoram Terrane (KT) represents the southern margin of Eurasian Plate, mainly consisting Late Jurassic-Early Cretaceous subduction-related granites and post-collisional Miocene leucogranites, which intrude Neo-Proterozoic basement. We report for first time existence Cryogenian KT basement as recorded from geochemistry geochronology tonalite gneiss (ca. 806 Ma) in southeastern terrane, NW ...

We report geochemical data of apatites from Mesozoic granitoids in the northeastern North China Craton (NCC), and discuss relationship between apatite whole-rock compositions with aim using to constrain granitoid petrogenesis. Measured Sr contents Sr/Y ratios exhibit positive correlations those their host rocks, εNd(t) values display a strong linear εHf(t) zircons granitoids. In addition, simil...

Fluorite mineralization was studied in the Variscan granitoid Karkonosze pluton northern part of the Bohemian massif (Lower Silesia, Poland). Fluid inclusions fluorite and quartz were investigated by following methods: heating freezing on an immersion microscope stage, spectrophotometric electron probe analysis, calcination water leachate. The parent fluids Na-Ca-Cl type with a low CO₂ content....

The Ingur alkaline granite massif and the associated Zr-Nb occurrence make up part of largest Mongolian-Trans-Baikal granitoid provinces. is composed arfvedsonite, biotite, alaskite granites. High content HREE determines low La/Yb n (2–7) value a negative europium anomaly (Eu/Eu*≈0.17). They are depleted in Ba, Sr enriched Nb, Ta, Zr, Hf Y. According to their geochemical properties rocks belong...