eng Ansari Education and Research Society Journal of Ultra Scientist of Physical Sciences April 2008 20 1 187 192 jusps-B 1378 article Ghodrat Torabi (Torabighodrat@yahoo.com) 1 Geology Department University of Isfahan, Isfahan (IRAN) <p style="text-align: justify;">Rare earth elements contents of 30 granitoids from Central Iran have been determind by neutron activation analysis (NAA). Intrusive alkali-granites contain aplitic dikes and enclaves. All of these three rock types are alkali-granite in petrographic study. Similar REE contents and parallel chondrite REE patterns of all samples reveals that they were all produced by a same petrogenesis.</p> https://ultraphysicalsciences.org/paper/1378/ granite Central Iran Rare earth