Zarigan and Chah-Chole granite bodies located at the north of Bafgh, southeastern Ardakan 1:250000 map, part of Central Iran microcontinent. These bodies vary compositionally from alkali- feldspar granite to syeno- monzo granite. They are leucocrat and subvolcanic, mineralogically mainly quartz- feldspathic with lack of mafic minerals. Various textures of magmatic, deformation, metasomatic, granophyric, graphic, mylonitic, cataclastic, myrmekitic, pertitic and replacement can be found in these granites. Geochemically these bodies indicate calkalkaline to alkaline, peraluminous I-type characteristics and magmatic arc geoenviroment. They show different elemental behavior within variation diagrams, based on affinity, mobility and compatibility and intensity of tectonic structures and deformation, indicate the influence of both differentiation and metasomatic processes on the bodies. Field observations and petrographic and geochemical evidences on the Zarigan and Chah- Chole bodies indicate that at least part of those had formed from the earlier dioritic and gabbroic and pyroclastic rocks via metasomatism and hydrothermal differentiation processes, but after emplacement within the upper levels of the area, they also have been under the influence of these processes. The comparison of these rocks with criteria has been proposed for distinguishing magmatic and metasomatic granites, revealed that they share some characteristic features with magmatic bodies, but of course especially Zarigan granite has the most congruency with E-type or metasomatic granite.

Relatively high levels of radon emissions are associated with particular types of rocks such as granites. Because of chemical composition of granite, it sends out radioactive radiations. In recent years, regardless of its hazards demand have increased for these stone types. In this paper, health hazards of granite were assessed in terms of its radon gas emission. The radon gas was analyzed in samples collected from Buien- Miyandasht’s granite mass in Isfahan Province, central Iran. The result of this survey shows that radon content in some local stones used as basements are extremely high and these samples are main sources of indoor radon emanation.

Soil-water characteristic curve (SWCC) is one of the important keys for estimating the behavior of unsaturated soils. The aim of this study was to establish SWCC of the residual granite soil in laboratory. Therefore, a modified oedometer based on the axis translation technique successfully employed to perform various experiments in unsaturated condition. Soil water characteristic curve (SWCC) for a residual granite soil at different densities was then established based on results obtained from experiments using the oedometer. Results showed a good trend between the experimental and numerical methods, verifying the established SWCC. Finally, an empirical equation was established to describe relationship of the granite soil water characteristic curve (GSWCC) as it fitted well with the experimental results.Soil-water characteristic curve (SWCC) is one of the important keys for estimating the behavior of unsaturated soils. The aim of this study was to establish SWCC of the residual granite soil in laboratory. Therefore, a modified oedometer based on the axis translation technique successfully employed to perform various experiments in unsaturated condition. Soil water characteristic curve (SWCC) for a residual granite soil at different densities was then established based on results obtained from experiments using the oedometer. Results showed a good trend between the experimental and numerical methods, verifying the established SWCC. Finally, an empirical equation was established to describe relationship of the granite soil water characteristic curve (GSWCC) as it fitted well with the experimental results.

The electrical properties of rock types or channel structures have been the object of intense studies for many years. The main aim of the present work is to show the frequency response of electrical properties of some granite samples concerning chemical, minor and major composition. This may be used as a fingerprint for the characterization of some granite rocks. Electrical measurements on granite samples (surface, Aswan, Egypt) were measured (100 Hz up to 107 Hz). Differences in samples due to changes in texture lead to different changes in electrical properties. The changes at conductivity and dielectric constant are reflections from the texture within grains. Conductivity and dielectric constant values extend from ~10-8 to 10-4 (S/m) and 24 to 3. 5, respectively. With frequency increase, conductivity increases, and dielectric constant decreases (10 kHz), and then it settles down. Differences in electrical properties between samples are small as a direct result of the homogeneity and texture of most samples. There is a high dispersion of dielectric constant for relatively low-frequency values (<10 kHz) and no dispersion at relatively high frequencies. In conclusion, the dielectric constant decreases due to the shrinkage of energy levels for electrons and the increase of hopping particles between different particles.

Metamorphic sequences have been examined from contact aureole of Mashhad granite. According to field evidences and textural features, contact aureole of Mashhad granite belongs to contact facies series of type 2b. Therefore, a pressure range from 3.5 to 4.5 Kbar and a contact temperature of around 600oC is estimated for the formation of this aureole.

The granite stone is the most widely used in the construction and granite slurry is generated through cutting and polishing of the stone. granite slurry is waste material consisting of very fine powder and creats disposal and environmental problems in worldwide today. Disposal of granite waste leads to health hazards like respiratory and allergy problems to the people around. It also causes the pollution of air and water. Concrete is the most widely used construction material and innovation in ingredient material (cement and coarse aggregate) is urgently needed. The replacement of natural resources in the production of cement is an important issue in the present construction scenario. Also, the cement industry is one of the principal producers of carbon dioxides. Utilization of granite slurry waste in concrete can solve many problems related to waste generation, reduction in the consumption of natural resources and CO2 emission. Systematic experimental study has been carried out using granite slurry waste in place of cement at various replacement levels. This study has been carried out for w/c 0. 5 and 0. 4. Specimens have been cast to perform compressive strength test and flexural strength test. It has been shown that inclusion of granite slurry modifies the compressive strength and maximum strength has been obtained depending upon replacement level and w/c ratio. Flexural strength is also influenced by the addition of granite slurry waste in a similar way. These replacement studies demonstrate that the granite slurry concrete will be economically cheaper and more sustainable.

Understanding of the geological characteristics of artificial stone is of particular importance. Appearance, size and dimensions, specification of particle surface and minerals forming aggregates are among the characteristics of rock materials that affect the homogeneous and cladding environment. Volume variations, water absorption, resistance to atmospheric agents and wear resistance are the most fundamental features of engineering stone in artificial stone. In this research, to investigate and compare the resistance properties (Uniaxial Compression, Brazilian, Point Load, Ultra Sonic) and the physical properties of artificial stones made with additives (polyester resin, vinyl ester resin, glass fiber and aggregate type) with three granite samples, we will cover the Alamut granite, Takab granite and Nehbandan granite. The results of the study show that the glass of fiber glass samples compared to non-woven glass made of resin and aggregates, has more 15% of tensile strength, 14% of uni-axial compressive strength and 12% of the point load index. As well as, resistance of samples made with a leaden resin is 1. 64 times more than polyester resin specimens. Based on this study, the mixing plan and percentage ratio combination is the most important principle in the strength and strength of artificial stone

The Rigmalak granitoid is located East of Taftan volcano, southeast of Zahedan, in Sistan Suture Zone. This pluton (Oligo-Miocene) has intruded into Eocene Flysch deposidt and cause low metamorphism in the borders. This pluton is composed of granite, synogranite, monzogranite, granodiorite, tonalite, pegmatitie and diorite in composition. The main minerals in this pluton are quartz, plagioclase, orthoclase, biotite and hornbelande and they are mainly granoular to pegmatitic in texlures. Presence of biotite and hornbelends minerals in this granitoides show that it is simillar to Zahedan granitoid and it is belonging to I type granite. Geochemical studies show that these rocks have calcalkaline to low alkaline magmatic series and metaluminous, I type, enrichment from LREE and LILE and depleted from HREE and HFSE. Major, rare and trace elements digramas of shows crystal defferintation is important role the formation pluton. Digrams normalized to chondorite and primitive mantle show that rocks formed this pluton are enriched in LREE to HREE and dominantly simillar and parall trends. Also, Zr and Th elements show positive anomalyes and Sr, Nb and Ti negative anomalyes, similar to subduction zones. Tectono magmatic diagrams show Rigmalak granitoid rocks related to syncollision to low post collision environments. Geochemical evidence of Rigmalak samples showed that crystal differentiation was not the only effective process in the formation of magma but may be several phases or melting of a phase with different degrees also may happened in the region. It seems that the formation of this granitoid in the Sistan suture zone is related to the collisions between Lut and Afghan blocks.