بررسی زمین شناسی، پترولوژی و ژئوشیمی توده های نیمه عمیق محدوده نوده انقلاب، جنوب خاوری جغتای

the neogene intrusion masses in the noudeh-enghelab area located to the north of sabzevar ophiolite have cut the late cretaceous ophiolitic rocks, sedimentary- volcanic and eocene volcanic rocks and have been covered by pliocene and quaternary deposits. the margin is of lava with basalt, phyric andesite-basalt and andesite and the central parts (dome shaped) composed of phyric andesite-trachyandesite, aphyric-phyric dacite, phyric trachydacite and quartz monzonite. in the spider diagrams normalized with primitive mantle, the masses marginal rocks and masses displays a subduction-related geochemical signature with depletions in hfse of match ti, nb and ta. in the spider diagrams normalized with chondrite, have been enrichment of elements lree indicate that would environment back arc. these rocks indicate childbirth relation, the spider diagrams normalized with primitive mantle and chondrite for samples intrusion masses and masses margin, tyupica subduction-related calc-alkaline magma the enrichment of elements liles and depletions of element hfse. it seems that they would be the results either of mantle wedge melting with different degrees of enrichment for released water and fluids or partial melting of metamorphosed units and mafic parts above the subducting plate.