U–Pb geochronology, REE and trace element geochemistry of zircon from El Fereyid monzogranite, south Eastern Desert, Egypt
С. Г. Скублов, Ahmed E. Abdel Gawad, E. V. Levashova, Mohamed M. Ghoneim
Abstract
The monzogranite of El Fereyid is one of the rare metal–rich granites, where zircon is one of the ore minerals. Thus, studying zircon here is of vital importance. Most of the studied zircon grains are metamict and thus the loss of radiogenic Pb is detected for them. Nevertheless, our study allowed us to obtain the U–Pb (SHRIMP–II) age of magmatic crystallization for the El Fereyid monzogranite: 626 ± 13 Ma. These data allowed the correction of earlier determined age (K–Ar system in biotite) for the El Fereyid massif.
Topics & Concepts
ZirconGeologyGeochemistryGeochronologyBiotiteMassifBaddeleyiteTrace elementRadiogenic nuclideRare-earth elementPartial meltingMetamictizationPetrologyCrustMineralogyRare earthMantle (geology)QuartzPaleontologyGeological and Geochemical Analysisearthquake and tectonic studiesGeochemistry and Geologic Mapping