Introduction: In general, strength of rocky outcrops is associated with two factors, feature lithology that includes mineralogical composition, texture and rock Structure and environmental factors that is the area stones are located in (Hafezy moghadas, 2011, 229 after Ulusay, 1994). The mineralogical composition determines sensitivity of rocks against physical, chemical and biochemical attacks (Mahmoodi, 2010). Rocks because of containing different minerals show various stability against the degradation factors (Nikoodel, 2011). This is the first time research to use classification system of in geology for naming rocks to determine the degree of resistance of the stones against weathering and erosion.

Abstract: Antimony mineralization occured in Hamedan district (Faghireh) which is related to ALVAND Granitoids. The mineralization occured as a series of veins. Thickness of veins are variable and reach up to 0.7m. The veins are emplaced along high angle faults. These faults acted as a pathway for migration of ore fluids. Veins are composed of stibnite, pyrite, realgar and orpiment with quartz as a gangue. The textures of veins are open space filling, however brecciations also occured. Monzogranites, which formed the main part of ALVAND pluton, is the host of quartz - stibnite veins. Monzogranites are composed of quartz, sodium plagioclase (oligoclase), orthoclase, biotite and sometimes muscovite.The veins are composed of 30.5% antimony, 0.83 ppm gold and 498 ppm arsenic. Based on geochemical studies, Sb, Au, AS, Ag, Hg, Sn, Ni, Co and Cr contents of host rocks are much higher than the world's average monzograniets and have probably anomalies. Spiderdiagrams show an identical pattern for host rocks and veins, which strongly suggests that these veins are cogenetic with the intrusive rocks (monzogranite).In summary, with all geological evidences in the region, it can be concluded that the mineralization is probably occured in the epithermal type.

Background- Currently little is known about the prevalence of high blood pressure among Iranian children. Early identification of children at risk for hypertension is a key approach to prevent serious complications. Our goal in this study is to determine the prevalence of hypertension in primary school children of ALVAND city, Iran.Methods- In this cross-sectional study, the levels of systolic and diastolic blood pressure were measured and the prevalence of hypertension among 840 primary school children (7-12 years) determined. The children were selected through a double-stage randomized sampling method while divided into six different age groups. The blood pressure was measured by means of standard equipment. Data were analyzed using statistical methods.Results- Out of 840 children, 410 (48.8%) were male and 430 (51.2%) female. The average systolic and diastolic blood pressure among both sexes increased with increasing age. Except in one age group, there was no significant difference between the systolic blood pressure between the two genders; however, a significant difference was found when the diastolic pressure in 4 age groups was compared (P<0.05). The prevalence of systolic and diastolic hypertension among boys and girls was 6.15% and 3.4%, respectively.Conclusion- This study revealed that the prevalence of hypertension in primary school children in the city of ALVAND is noticeable. Hence, it is necessary to measure the blood pressure on a regular basis for early detection of hypertension.

The leucocratic granite emplaced as small masses and dykes in the ALVAND batholith. The leucocratic granite consists of tourmaline alkali granite, biotite alkali granite, arfvedsonite alkali granite, rutil alkali granite, and biotite-muscovite granites with alkaline and peraluminous affinities. They show enrichments of LREEs relative to HREEs and LILE relative to HFSE with negative anomalies in Nb, Ta and Ti, in normalized trace element diagrams. The leucocratic granite of the ALVAND batholith resemble A-type and can be further classified in two of A and A' types granite. The trace elements content of A-type is much higher than A'-type granite. Based on geochemical data, it seems that A-and A'-type granites were generated from partial melting of mantle source. As mantle magma ascends, fractionate and empalce into the crust, A-type leucocratic are formed with minimal contamination and A'-type leucocratic with significant contaminant with continent crust are formed. Field and geochronology data suggest that the leucocratic granite were generated in the late Jurassic, which is contemporaneous with the subduction of the Neo-Tethys oceanic crust beneath the central Iran. It seems that the leucocratic granites were emplaced during a local extensional phase as dykes and small bodies in the ALVAND batholith.

During recent decades, urban development process has increased because of the industrial revolution. This process has facilitated urban target immigration which considered to be in priority comparing with urban – infrastructure construction. Such imbalance situation has made some problem for urban development. The Industrial development and other factors have affected in urban & rural structure. These factors have attracted the population to urban Centers.This circumstance can be seen in the metropolitan specifically. ALVAND town enjoying such specifications during for last decades. This analysis using Shannon's & Heldren models to study the town's physical development targeting the improvement of physical pattern of ALVAND town. The result indicate that ALVAND town had developed unsystematically due to the lack of municipality and urban management entities up to 1361. This town has developed such way in spite of establishing municipality since 1362 to 1375. The speed of development has decreased comparing to previous decades since 1375. This situation has made ALVAND "town's appearance different & ugly. These models have indicated that the rate of spiral could be 43%. However, there is a huge difference between Antropi value made by horizontal development and urban spiral during last decades. so the results show that it would be possible to suggest "Nosrat Abad" (13th Zone) as future development pattern of ALVAND town. So urban construction would be in priority than urban-target immigration.

Neo-tectonic has a very important role in the morphological evolution of each drainage basin. The tectonic history can be retrieved by morphotectonics quantitative indicators in each region. Hamedan batholith masses valleys with NW-SE direction in the South, South East, and West of Hamadan, have been influenced heavily by the geomorphological, tectonic and other eroding factors. The core of tectonic geomorphology is the study of the frequency of tectonic processes that tend to topography and surface processes. By studying Morphotectonics indexes can be assessed valleys an unstable. Evaluation of Morphotectonics indicators in the northeastern and southwestern slopes of the mountain front sinuosity Hamedan according to different heights of mountain front is purpose of this study Evaluation of tectonic activity in ALVAND mass range, have been estimated by using Morphotectonics indicators in 28 sub-basin, topographic maps with scale 1: 50000, satellite images, field visits and software. The results of slope length of the river (SL), asymmetric factor (Af), integral hypsometric curve (Hi), valley floor width-to-height ratio (Vf), Mountain-front sinuosity (Smf), transverse topographic (Tp) and sinusoidal of river (Sr) indicators were assessed by using IAT index. According to this index, 50% of Northeast Slope sub-basins and 37. 5% of southwest slope sub-basins have gained class 3 activities which imply a more active tectonics of the southwest toward the northeast slope. Due to the erosion and geological factors, southwest slopes tectonic activity is more evident than north-east slopes. The northeast slopes Mountain-front sinuosity is 200 meters higher than south-west slopes, according to the higher density of faults on the southern slopes of ALVAND can say that the lower altitude mountain-front has provided favorable conditions for reflection Morphotectonics area.

In this study, some physical properties of two wheat (ALVAND cultivar) and wild oat and the effect of humidity on these properties was investigated. The effect of Grain type (wheat and oat) and humidity (9.45, 12 and 14.45%) on triple grain size, geometric mean diameter, sphericity index, bulk density, particle density, porosity, static coefficient of friction and terminal velocity in the factorial design was evaluated. The results showed that the Grain type and moisture levels are significant effect on the physical properties of oat and wheat grains. There are exist significant differences between wheat and oat in terms of particle density, Bulk density and porosity. Also the moisture effect on the bulk density at 1 percent and on the particle density at 5 percent but by its effect on the percentage porosity was not significant. Between surfaces, the aluminum and steel including of Maximum and minimum of the coefficient of static friction respectively. The coefficient of static friction and the terminal velocity increases linearly as moisture increased.

The aim of this research was to identify the plant species, introducing the flora, determination of life forms, and geographical distribution of alpine plants of some part of ALVAND Mountain, Hamadan province. This area, with 3750 hectares, situated in north-east of Toyserkan city where the amount of annual precipitation is 420 mm and means annual temperature is 13.4oC. The altitude of this mountain is 3450 m (above sea level). The method of plant collection in this region was classical method of regional plant taxonomic studies.400 plant samples were collected from different parts of the area between 3000-3450 m during two growing seasons 2009-2010 and are conserved in herbarium of Islamic Azad University, Boroujerd Branch and herbarium of Agricultural and Natural Resources Research Center of Hamadan Province. The life form of plant species was determined by using of Raunkiaer’s method. The position of this area within Iran’s phytogeography classification was studied based on geographical distribution data and references. From 108 identified species in high altitude of ALVAND Mountain, 1 Pteridophyte, 80 dicotyledons and 27 monocotyledons are present. These species belong to 33 families and 85 genera. The important families are Asteraceae, Poaceae and Lamiaceae with 12.96%, 12.03% and 10.18%, respectively. Hemicryptophytes with 45 species (41.67%) were the most frequent life form.65 species (60.18%) belong to Irano-Turanian region; 13 species of them were endemics of Iran which among them, distribution of 2 species (Allium breviscapum Stapf and Astragalus leucargyreus Bornm.) limited to Hamadan province.

Background and Objective: Environmental factors affecting the species are one of the most important topics in the science of ecology and understanding the influences of environmental variables can help the protection of species especially endangered species. The purpose of this study was to identify habitat factors influencing the presence of lizard habitat in ALVAND protected area.Method: ALVAND protected area; with 8618 hectares survey is located in central province and Khomein city. In this paper, the studied area, in terms of geomorphology is divided to three types including, plain, hillside and mountainous area. Then all three type of habitats divided to cells with 50 50 size in Arc GIs 9.3, and ultimately 10 percent of these cells are selected randomly and will be considered and analyzed.Findings: The results of GGE biplot software for three groups of habitat plains, foothills, and mountainside showed that the most presence in plains habitat is dependent to Ophisops elegans species that variables which influence the presence of these species are: the richness of vegetation, soil content, and the density of the vegetation and grit is the worst parameter for the presence of this species. In mountainside habitat, the most presence is dependent to the species Ophisops elegans and Paraloudakia Caucasia. And the most important parameter for Paraloudakia Caucasia is height and the percent of grift. Also for mountainside habitat species like Ophisops elegans, Paraloudakia Caucasiaand Loudakia nupta had the most presence.Discussion and Conclusion: Results obtained from this study illustrated that especially Ophisops elegansand Paraloudakia Caucasia species with percent of rock and Loudakia nupta with vegitation enrichment, the density of vegetation, the percent of grit, and height, respectively showed presence.