Abstarct: In Moghiseh area (SW Sabzevar), subduction-related subvolcanic domes composition with dacite-rhyodacite emplaced into the Eocene volcano-sedimentary rocks. Marly fragments of oligo-miocene are found in the subvolcanic rocks as Xenoliths. These rocks show porphyric, glomeroporphyric and fluidal textures and contain plagioclase phenocrysts with compositional zoning, Amphibole with burned margines, quartz and sanidine as the main minerlas together in a fine grained to glassy matrix of these mineral. The rock- forming magma of these rocks has calc-alkaline and mexta-aluminous nature which is characteristics of the arc volcanics. These rocks fall into the field of high-silica adakites (HAS) in classification diagrams. Enrichment in the light rare earth elements (LREEs) and large ion lithophile elements (LILEs) and depletion in the heavy rare earth elements (HREEs) are obvious in their primitive mantle and chondrite normalized spider diagrams. Strong depletion in HFSEs including Nb, Ti and P which is signature of the arc volcanic, can be seen in these rocks. Petrogenetic studies indicate, the parental magma of the mentioned rocks has been formed from partial melting of an eclogitic-garnet amphibolitic source derived from mextamorphism of the Sabzevar Neo-Tethyan subducted oceanic slab under the southern edge of the eastern Alborz zone.