Writers : Dehnavi, N.
Refference : 28th Symposium on Geosciences and the 14th Symposium on Geological Society of Iran
Publishing Year : 1389

Abstract :

The studied adakitic bodies, are located in the west of Neyshabour and mainly composed of plagiociase and hornblende, also have include intermediate- acid and with calc- alkaline in nature. General trends of changes in the oxides of major, rare elements and REE is an indication of the continuity of petrological composition of this igneous rocks is due to differentiated crystallization. This igneous rocks shaw high silica adakitic geochemical characteristics, marked with apparently higher La/Yb and Sr/Y, and lower Y and HREE. Based on geochemical and petrogenetic diagrams, the studied rocks are the result of partial melting of a young and hot oceanic lithosphere of sabzevar ocean which have been metamorphosed up to Amphibolite facies. The resulted magma have evolved through differentiated crystallization and magmatic contamination, then ascended to upper level of continental crustal and emplaced in the form of dike, stock and dome in the post Eosen.

Subject List : Adakit