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Granitoids of the composite Shahjahan batholith in the northernmost part of the Urmia-Dokhtar magmatic arc of Iran, and southernmost of the Lesser Caucasus (South Armenia) show SHRIMP zircon ages of 37.1±1.2 to 47.1±4.5 Ma. Dioritic rocks of the pluton with an age of 46.6 ± 4.6 to 47.1 ± 4.5 Ma are calk-alkaline to high-K calc-alkaline, metaluminous and I-type. They show arc-related affinities, characterized by LREE and LILE enrichment and HREE and HFSE depletion, especially negative Ti, Nb and Ta anomalies (TNT effect) in the normalized spider diagrams. low Ce/Pb, Nb/La and high Ba/Nb, U/Th and Hf/Zr ratios along with positive Pb, K, Th and Sr anomalies in the normalized spider diagrams for the studied samples are compatible with magma contamination with crustal materials during ascend to the lower crustal levels. Felsic dikes with granodiorite and syenite compositions and 37.1 ± 1.2 to 38.57 ± 0.41 Ma old, are characterized by high-K calc-alkaline to shoshonitic, metaluminous, and A2- type affinities which show post-collision tectonic setting geochemical features. The REE patterns for all studied samples and the composition of the trace element ratios indicate a geochemically enriched spinel-lherzolite lithospheric mantle source for the magmas, which underwent a low degree of partial melting. Dating arc-related dioritic samples and post collision felsic dikes put constrain on timing of Neotethys Ocean closure in NW Iran. Based on the present study, Middle to Upper Eocene is suggested as closure time of the Neotethys Ocean, Arabia and Central Iran plates’ collision and crustal thickening in Northwest Iran.

Cement is one of the most traditional construction materials, as well as, the most widely used cement in the building industry today. The rising costs of energy required for the manufacture of cement and the needed to understand the mechanism of concrete deterioration as well as the necessity of optimizing the use of Portland cement in high quality concrete, emphasizes the fact that understanding of this important building material is essential for correct industry practice. Clinker microscopy is evidently one of the key factors which determine cement quality. In this research cement quality control of Fars Cement factory (SW Iran) were studied by Clinkers Polished sections and Chemical analysis of clinker and Portland cements that were done by Fars cement factory's XRF Lab. Thus, Bouge chemical indices were calculated. Also, Lime saturation Factor, silica and alumina ratios were used to compare the Fars cements and clinker by universal standards and the Ono method was used to investigate the kiln conditions. The Results show the presence of Alite, Belite, Aluminate and quartz phases in polished sections, the type of fuel was from gas fields and the increasing rate of temperature, cooling rate were slow in clinker and burning time of clinker was in long time. Also, Fars clinker and Portland cements have rather conform to clinker and cement universal standards.

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Amphibolites from the Ghoulan area in the East Azerbaijan province, NW Iran are metabasites containing plagioclase and hornblende as main phases also rutile and opaque minerals as accessory phases. They are spatially associated with different magmatic intrusions from the Shahjahan batholith and their relationship is sharp. These metabasites are located between three main suture zones such as Sevan-Akera suture zone in Armenia, Bitlis-Portugal suture zone in Turkey and Zagros suture zone in Iran, so their geodynamic features will help us to reconstruction paleo-geodynamic of Neotethys Ocean especially in the North West of Iranian microplate. Based on whole rock, major and trace element geochemistry of the amphibolites, they are formed from sub-alkaline basalt to andesite-basalt with tholeiitic affinity which originated from high rate partial melting (more than 10%) of mantle with spinel lherzolite to spinel-garnet lherzolite composition, they do not show any negative Ti, Nb and Ta anomaly in the different normalized spider diagrams which indicate their generating is not related to the subduction tectonic setting but they are enrichment in large ionic lithophile and LREE elements such as Rb, Sr, U, Th and Cs rather than HREE and HFSE. The geochemical composition of studied metabasites show sialic back arc basin tectonic setting. Based on plagioclase and amphibole mineral chemistry, the amphibole minerals show metamorphic and calcic features also Edenite in composition and plagioclase are andesine in composition. Thermobarometry based on amphibole composition in amphibolites shows 697-778oC temperature and 3.5- 5.5 Kbar pressure for these metabasites which can be correlate with LP-HT metamorphic facies that confirm their generation in the extensional tectonic setting. Although any age dating on these metabasites is not reported yet but due to high similarities between these metabasites and studied metabasites in the Khoy metamorphic complex (NW Iran) from petrogenesis and geochemical viewpoints, we propose that these metabasites can be correlate together and generated from a single tectonic event at a same geological time, so we propose the Paleocene –Eocene possibility time for metamorphism of studied amphibolites and closure of the back arc basin.