… ages of these granitoids still remain. Here we present geochemical, zircon Hf isotopic and
U–Pb age data for peralkaline and aluminous granitoid intrusions to assess their petrogenetic …

… Zircon U–Pb dating on tonalite, K-feldspar granite, syenite and quartz syenite from the …
geochemical, zircon U–Pb age and Hf isotopic data to decipher the petrogenesis of these Permian …

… zircons with ages between 531 Ma and 354 Ma have variable Hf isotopic compositions (
Tables 4 and 5 ), with 176 Hf… -K calc-alkaline granites, whereas gneissic alkali-feldspar granites …

… These granitic plutons are mostly high-K calc-alkaline and weakly peraluminous, and …
zircon U-Pb ages and geochemical data (major and trace elements, and Hf isotopic compositions…

… The juvenile Sr–Nd–Pb–Hf isotope compositions are … with the zircon U-Pb ages obtained
from Jangsari granite and gabbro in … Data for these rocks plot in the granite field on a total alkali …

… are coarse- to medium-grained, undeformed and typically contain alkali-feldspar (30–40%), …
Whole-rock Nd and Sr isotopic compositions were determined using a multicollector …

… type granites and associated mafic dikes. We report here U–Pb zircon ages, geochemical data
and Sr–Nd–Pb–Hf … In addition, the Sr–Nd isotopic compositions (Fig. 8) are comparable to …

… to the subalkaline series in the total alkali–silica diagram. The … by Cenozoic mafic rocks,
Mesozoic granitoids, and a small mafic … Zircon Hf isotopic compositions of the granodiorites and …

… The Jiangjunshan and Dakalasu alkali-feldspar granites are … geochemical, zircon U–Pb,
and Hf isotopic data of these … 176 Hf/ 177 Hf ratios represent the isotopic composition of the …

… the geochemical signature of an A 2 -type granite, and thus were not derived from a rift or
mantle plume. In the early Permian… SIMS U–Pb zircon ages and petrological, geochemical and …