Apatite Sr-Nd and zircon Hf-O isotopes are broadly used to trace magma sources constrain evolution processes, further improving our understanding of the origin granitoids. We present U-Pb ages, whole-rock major elements, Sr-Nd-Hf, Hf-O, apatite isotopic data for coarse-grained quartz monzonite, biotite monzogranite, granite porphyry in Yushulinzi pluton Liaodong Peninsula, eastern North China C...

gabal el-zeit block at the western coast of the gulf of suez region in egypt consists of two varieties of precambrian granites, namely monzogranite and a peripheral zone of alkali granite. both granitic varieties display moderate (60.1-68.5 wt%) and high silica (73.36-76.16 wt%) contents with high na2o+k2o (7.21-8.61 wt%), respectively. the investigated monzogranite is calc-alkaline metaluminou...

La coupole de Montebras est un petit massif granite à métaux rares (Sn, W, Li, Nb-Ta) situé au nord du Massif Central Français qui se met en place Carbonifère supérieur dans encaissant plus ancien, le Chanon (357,2 ± 2,1 Ma). Deux épisodes magmatiques, microgranite (316,1 4,3 Ma) et leucogranite albitique (309,8 3,9 Ma), sont distingués. Le second développe son toit des formations contact, nota...

This work deals with the petrographic and geotechnical characterization of rocks from N'goura massif focus on their use in civil engineering. The study area is located central southern Chad, about 205km to north N'Djamena. monzogranitic two micas. outcrop as blocks, slabs balls displaying fine, medium coarse grained minerals. Monzogranite composed 34% quartz, 32% alkali feldspar...

Abstract The rates and mechanisms by which deeply subducted continental crust was exhumed back to the surface are not well understood, but can be better characterized using multimineral petrochronology. Here, we combine zircon, titanite, apatite U-Pb ages from leucogranite phengite gneiss with a pressure–temperature (P–T) path eclogite provide robust quantitative constraints on cooling exhumati...

decompression to achieve the same result appear to require extreme The Manaslu granite is the most studied of the dozen or so plutons conditions not permitted by available geological constraints. that make up the High Himalayan leucogranite belt. The inferred relationship of the Manaslu granite with important Himalayan tectonic structures has inspired repeated attempts to determine its crystall...

Kahang Cu Porphyry deposit is situated in the central part of a major Iranian magmatic belt, Urumieh-Dokhtar, in central Iran.There are several sub-volcanic stocks (e.g., porphyric granitoids rocks, quartz monzonite, diorite and monzodiorite-monzogranite)within Eocene volcanic and pyroclastic rocks consisting of basaltic, trachy-andesite and dacitic rocks. Hydrothermal alterations at the Kahang...

In the relatively pristine ecosystem in Kejimkujik Park, Nova Scotia, methylmercury (MeHg) concentrations in loons, Gavia immer, are among the highest recorded anywhere in the world. This study investigated the influence of bedrock lithology on MeHg concentrations in wetlands. Twenty-five different wetland field sites were sampled over four different bedrock lithologies; Kejimkujik monzogranite...

The Piedade Granite (approximately 600 Ma) was emplaced shortly after the main phase of granite magmatism in the Agudos Grandes batholith, Apiaí-Guaxupé Terrane, SE Brazil. Its main units are: mafic mineral-rich porphyritic granites forming the border (peraluminous muscovite-biotite granodiorite-monzogranite MBmg unit) and core (metaluminous titanite-bearing biotite monzogranite BmgT unit) and ...