THE STRUCTURE OF UNIT GRUOP OF F3nT39F_{3n} T_{39}

Let $RG$ be the gruop ring of the group $G$ over ring $R$ and $U(RG)$ be its unitgroup. In this paper, we obtain the structure of unit group of $F_{3n} T_{39}$

GEOCHEMISTRY AND PETROGENESIS OF PLUTONIC MASSES IN NORTH OF SONQOR (WEST OF IRAN)

The study area is a quadrilateral that is in west of Iran and north of Sonqor city of Kermanshah province. This area is 155 km2 between eastern longitude 47˚ and 40 ′ to 47˚ and 52 ′ and northern latitudes 35˚ and 00 ′ to 35˚ and 04 ′. In this range, the intrusive rocks are Olivine gabbro, gabbro, gabbro diorite, diorite, monzonite, alkaline sinite, quartz diorite, quartz monzodiorite, quartz monzonite, quartz alkaline sinite, tonalite, granodiorite, granite and alkaline granite, they were injected in the iron ores of cretaceous which has resulted in contact metamorphism and created hornfels at the site of contact. After comprehensive sampling of all required igneous rocks and according to the thesis objectives, 90 thin sections were prepared and after petrography, 24 samples were selected for geochemical experiments. XRF analysis were performed on 9 samples and ICP and alkaline fusion were performed on 15 samples. According to geochemical and petrological studies, the magmas forming these intrusive igneous rocks are from one region and because of magmatic differentiation or fractional crystallization, they from basaltic to acidic terms. According to the alkaline-silica diagrams, the studied rocks are in the range of tolite, calk-alkaline, potassium-rich calk-alkaline, and shoshonitic series. Based on tectono-magmatic diagrams, samples of this quadrilateral have a meta-alumina nature and granitoids are in the range of arc islands granites, continental arc granitoids and continental collision granitoids. The mineralogical and chemical composition of the acidic rocks in the area show that the granites in this study are type I

Petrografía y geoquímica de magmas intrusivos en Varmaqan - Sardare ghobadi en el oeste de Irán

The study area is a quadrilateral of 155 km2 between eastern longitude 47˚ and 40 ′ to 47˚ and 52 ′ and northern latitudes 35˚ and 00 ′ to 35˚ and 04 ′ that is located in west of Iran, north of Sonqor city and between Varmaqan and Sardare Ghobadi villages of Kermanshah province. In this range, the intrusive rocks are alkaline granite, granite, granodiorite, tonalite, quartz alkaline syenite, quartz monzonite, quartz monzodiorite, quartz diorite, alkaline syenite, monzonite, diorite, gabbro diorite, gabbro, and olivine gabbro as they were injected in the iron ores of cretaceous which has resulted in contact metamorphism and created hornfels at the site of contact. After comprehensive sampling of all required igneous rocks and according to the thesis objectives, thin sections were prepared and after petrography and some samples were selected for geochemical experiments. XRF analysis, ICP and alkaline fusion were performed on some samples. According to geochemical and petrological studies, the magmas forming these intrusive igneous rocks are from one region and because of magmatic differentiation or fractional crystallization, they from basaltic to acidic terms. Samples of this quadrilateral have a meta-alumina nature and granitoids are in the range of arc islands granites, continental arc granitoids and continental collision granitoids. The mineralogical and chemical composition of the acidic rocks in the area show that the granites in this study are type I.El área de estudio es un cuadrilátero de 155 km² entre la longitud oriental 47 ° y 40 'a 47 ° y 52' y las latitudes norte 35 ° y 00 'a 35 ° y 04' que se encuentra al oeste de Irán, al norte de la ciudad de Sonqor  y entre las aldeas Varmaqan y Sardare Ghobadi de la provincia de Kermanshah.  En este rango, las rocas intrusivas son granito alcalino, granito, granodiorita, tonalita, sienita alcalina de cuarzo, monzonita de cuarzo, monzodiorita de cuarzo, diorita de cuarzo, sienita alcalina, monzonita, diorita, diorita de gabro, gabro y gabro de olivina cuando se inyectaron.  los minerales de hierro del cretáceo que han resultado en metamorfismo de contacto y creado hornfels en el sitio de contacto.  Después del muestreo exhaustivo de todas las rocas ígneas requeridas y de acuerdo con los objetivos de la tesis, se prepararon secciones delgadas y después de la petrografía y se seleccionaron algunas muestras para experimentos geoquímicos.  Análisis de XRF, ICP y fusión alcalina se realizaron en algunas muestras.  De acuerdo con estudios geoquímicos y petrológicos, los magmas que forman estas rocas ígneas intrusivas son de región y, debido a la diferenciación magmática o cristalización fraccionada, pasan de términos basálticos a ácidos.  Las muestras de este cuadrilátero tienen una naturaleza de meta-alúmina y los granitoides están en el rango de granitos de islas de arco, granitoides de arco continental y granitoides de colisión continentales.  La composición mineralógica y química de las rocas ácidas en el área muestra que los granitos en este estudio son de tipo I

GEOCHEMISTRY AND PETROGENESIS OF PLUTONIC MASSES IN NORTH OF SONQOR (WEST OF IRAN)

The study area is a quadrilateral that is in west of Iran and north of Sonqor city of Kermanshah province. This area is 155 km2 between eastern longitude 47˚ and 40 ′ to 47˚ and 52 ′ and northern latitudes 35˚ and 00 ′ to 35˚ and 04 ′. In this range, the intrusive rocks are Olivine gabbro, gabbro, gabbro diorite, diorite, monzonite, alkaline sinite, quartz diorite, quartz monzodiorite, quartz monzonite, quartz alkaline sinite, tonalite, granodiorite, granite and alkaline granite, they were injected in the iron ores of cretaceous which has resulted in contact metamorphism and created hornfels at the site of contact. After comprehensive sampling of all required igneous rocks and according to the thesis objectives, 90 thin sections were prepared and after petrography, 24 samples were selected for geochemical experiments. XRF analysis were performed on 9 samples and ICP and alkaline fusion were performed on 15 samples. According to geochemical and petrological studies, the magmas forming these intrusive igneous rocks are from one region and because of magmatic differentiation or fractional crystallization, they from basaltic to acidic terms. According to the alkaline-silica diagrams, the studied rocks are in the range of tolite, calk-alkaline, potassium-rich calk-alkaline, and shoshonitic series. Based on tectono-magmatic diagrams, samples of this quadrilateral have a meta-alumina nature and granitoids are in the range of arc islands granites, continental arc granitoids and continental collision granitoids. The mineralogical and chemical composition of the acidic rocks in the area show that the granites in this study are type I

Petrografía y geoquímica de magmas intrusivos en Varmaqan - Sardare ghobadi en el oeste de Irán

The study area is a quadrilateral of 155 km2 between eastern longitude 47˚ and 40 ′ to 47˚ and 52 ′ and northern latitudes 35˚ and 00 ′ to 35˚ and 04 ′ that is located in west of Iran, north of Sonqor city and between Varmaqan and Sardare Ghobadi villages of Kermanshah province. In this range, the intrusive rocks are alkaline granite, granite, granodiorite, tonalite, quartz alkaline syenite, quartz monzonite, quartz monzodiorite, quartz diorite, alkaline syenite, monzonite, diorite, gabbro diorite, gabbro, and olivine gabbro as they were injected in the iron ores of cretaceous which has resulted in contact metamorphism and created hornfels at the site of contact. After comprehensive sampling of all required igneous rocks and according to the thesis objectives, thin sections were prepared and after petrography and some samples were selected for geochemical experiments. XRF analysis, ICP and alkaline fusion were performed on some samples. According to geochemical and petrological studies, the magmas forming these intrusive igneous rocks are from one region and because of magmatic differentiation or fractional crystallization, they from basaltic to acidic terms. Samples of this quadrilateral have a meta-alumina nature and granitoids are in the range of arc islands granites, continental arc granitoids and continental collision granitoids. The mineralogical and chemical composition of the acidic rocks in the area show that the granites in this study are type I.El área de estudio es un cuadrilátero de 155 km² entre la longitud oriental 47 ° y 40 'a 47 ° y 52' y las latitudes norte 35 ° y 00 'a 35 ° y 04' que se encuentra al oeste de Irán, al norte de la ciudad de Sonqor  y entre las aldeas Varmaqan y Sardare Ghobadi de la provincia de Kermanshah.  En este rango, las rocas intrusivas son granito alcalino, granito, granodiorita, tonalita, sienita alcalina de cuarzo, monzonita de cuarzo, monzodiorita de cuarzo, diorita de cuarzo, sienita alcalina, monzonita, diorita, diorita de gabro, gabro y gabro de olivina cuando se inyectaron.  los minerales de hierro del cretáceo que han resultado en metamorfismo de contacto y creado hornfels en el sitio de contacto.  Después del muestreo exhaustivo de todas las rocas ígneas requeridas y de acuerdo con los objetivos de la tesis, se prepararon secciones delgadas y después de la petrografía y se seleccionaron algunas muestras para experimentos geoquímicos.  Análisis de XRF, ICP y fusión alcalina se realizaron en algunas muestras.  De acuerdo con estudios geoquímicos y petrológicos, los magmas que forman estas rocas ígneas intrusivas son de región y, debido a la diferenciación magmática o cristalización fraccionada, pasan de términos basálticos a ácidos.  Las muestras de este cuadrilátero tienen una naturaleza de meta-alúmina y los granitoides están en el rango de granitos de islas de arco, granitoides de arco continental y granitoides de colisión continentales.  La composición mineralógica y química de las rocas ácidas en el área muestra que los granitos en este estudio son de tipo I

Petrography and Mineral Chemistry of Tourmaline in Molla Taleb Ganitoid, Northeast of Aligudarz (Lorestan Province)

Molla Taleb pegmatites (northeast of Aligudarz) are located in the western part of the metamorphic-igneous Sanandaj-Sirjan Zone (SSZ). Slates and schists along with siliceous veins and veinlet and black Hornfels, as well as metamorphic sandstones are among the oldest deposits of this area. The most important geological event in this area is the development and intrusion of granitoid masses into schists of the Molla Taleb area during the Middle Jurassic. The rocks of the study area are in the range of gabbro, diorite, granodiorite, and granite. Granites are in the range of type-I granites. Most specimens are calc-alkaline and mainly contain peraluminous. Microprobe electron analysis of tourmalines present in pegmatites, tourmaline- aplite-pegmatite veins, nodular tourmalines, and quartz-tourmaline veins shows that all tourmalines are in the Schorl region and the range of alkaline tourmalines. These tourmalines with FeO / FeO + MgO ratios between 0.6 and 0.8 are in the range of magmatic-hydrothermal tourmalines and more than 0.8 in the magmatic range. Therefore, the studied tourmalines are dependent on granite environments and are formed by a hydrothermal fluid of magmatic origin

Petrography and Mineral Chemistry of Tourmaline in Molla Taleb Ganitoid, Northeast of Aligudarz (Lorestan Province)

Molla Taleb pegmatites (northeast of Aligudarz) are located in the western part of the metamorphic-igneous Sanandaj-Sirjan Zone (SSZ). Slates and schists along with siliceous veins and veinlet and black Hornfels, as well as metamorphic sandstones are among the oldest deposits of this area. The most important geological event in this area is the development and intrusion of granitoid masses into schists of the Molla Taleb area during the Middle Jurassic. The rocks of the study area are in the range of gabbro, diorite, granodiorite, and granite. Granites are in the range of type-I granites. Most specimens are calc-alkaline and mainly contain peraluminous. Microprobe electron analysis of tourmalines present in pegmatites, tourmaline- aplite-pegmatite veins, nodular tourmalines, and quartz-tourmaline veins shows that all tourmalines are in the Schorl region and the range of alkaline tourmalines. These tourmalines with FeO / FeO + MgO ratios between 0.6 and 0.8 are in the range of magmatic-hydrothermal tourmalines and more than 0.8 in the magmatic range. Therefore, the studied tourmalines are dependent on granite environments and are formed by a hydrothermal fluid of magmatic origin

Lithological Mapping and Identification of Argillic and Propylitic Alteration Zones at Anjerd Volcanic Terrain

Anjerd area is part of Arasbaran volcanic-magmatic terrain in northwestern Iran. The area is covered by multiple intrusive bodies of diverse compositions, volcanic, volcaniclastic, sedimentary and young alluvial deposits. The usefulness of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data for the lithologic mapping of the area and identification of alteration zones is investigated in this study. To carry out the study, one ASTER frame was atmospherically calibrated by Internal Average Relative Reflectance (IARR). The False Color Composite (FCC) and Principal Component Analysis (PCA) images were used for discriminating lithologic units along with Spectral Angle Mapper (SAM) and Matched Filtering (MF). The pure endmember image spectra were extracted from Pixel Purity (PPI) algorithm. The results showed that PCA and FCC can be used to discriminate sedimentary rocks from magmatic and volcanic rocks. Because feldspars and quartz are relatively featureless in shortwave infrared (SWIR) spectral region the methods were not capable to distinguish between various magmatic rocks except for basalts with darker color and higher pyroxene content. The MF gave better results than SAM algorithm and therefore MF is recommended over SAM for studying similar terrains. The argillic and propylitic alteration zones were detected by band ratios. The results showed that MF algorithm in combination with band ratios can be used to distinguish magmatic rocks from sedimentary rocks and delineate the alteration zone

Lithological Mapping and Identification of Argillic and Propylitic Alteration Zones at Anjerd Volcanic Terrain

Anjerd area is part of Arasbaran volcanic-magmatic terrain in northwestern Iran. The area is covered by multiple intrusive bodies of diverse compositions, volcanic, volcaniclastic, sedimentary and young alluvial deposits. The usefulness of Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data for the lithologic mapping of the area and identification of alteration zones is investigated in this study. To carry out the study, one ASTER frame was atmospherically calibrated by Internal Average Relative Reflectance (IARR). The False Color Composite (FCC) and Principal Component Analysis (PCA) images were used for discriminating lithologic units along with Spectral Angle Mapper (SAM) and Matched Filtering (MF). The pure endmember image spectra were extracted from Pixel Purity (PPI) algorithm. The results showed that PCA and FCC can be used to discriminate sedimentary rocks from magmatic and volcanic rocks. Because feldspars and quartz are relatively featureless in shortwave infrared (SWIR) spectral region the methods were not capable to distinguish between various magmatic rocks except for basalts with darker color and higher pyroxene content. The MF gave better results than SAM algorithm and therefore MF is recommended over SAM for studying similar terrains. The argillic and propylitic alteration zones were detected by band ratios. The results showed that MF algorithm in combination with band ratios can be used to distinguish magmatic rocks from sedimentary rocks and delineate the alteration zone