List of Articles چشمه

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  1 - Determination of the sequence stratigraphy boundaries by combining the wavelet analysis of wire line data - case study in South Pars field
  علي  خوبياري دکتر اسماعیل کلانتری  Charchi  Keshavarzi
  Nowadays, wavelet analysis has many applications to identify and analyze the transient boundaries and waves, such as image borders and earthquake waves. Detection of discontinuities in the sedimentary sequences and identifying the boundaries of sequence stratigraphic su More

  Nowadays, wavelet analysis has many applications to identify and analyze the transient boundaries and waves, such as image borders and earthquake waves. Detection of discontinuities in the sedimentary sequences and identifying the boundaries of sequence stratigraphic surfaces are one of those applications. In this study, wavelet analysis was used to analyze wirline logs data, such as GR, NPHI, RHOB, RHOZ, THOR / URAN and multimin data such as anhydrite percentage volume, in which the data vary in sequence boundaries. Different types of sequence boundaries impact on different types of logs. The wireline logs are affected by structural and lithological changes; thus, we cannot identify those boundaries using a kind of correlation coefficients. In this study, a combination of coefficients for the wireline logs is used. This combination offers a good way to automatically determine the borders fairly accurate. The best results are obtained from the coefficients combination of GR, NPHI, RHOB (RHOZ) logs and the anhydrite percentage volume multimin, and also, the coefficients combination of GR, NPHI, RHOB (RHOZ) logs and thorium to uranium ratio (THOR / URAN) graphs. Comparison between the results of this study in Kangan and Dalan formations of South Pars gas field with the other proved methods show the capability of this technique in combination of data. Manuscript profile
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  2 - The Evidence of multiple origin for calcareous springs in the Abe Ask region (Southeast of Damavand volcano) using isotopic data, water geochemistry and Remote Sensing studies.
  Somayeh Rahmani Safyeh Omidian nasibeh zarei
  There are several calcareous springs and travertine deposits on Southeast flanks of Damavand volcano in Abe Ask area (85 km northeast of Tehran, Central Alborz zone). In this study, based on carbon and oxygen isotopic signatures on travertine deposits, the source of s More

  There are several calcareous springs and travertine deposits on Southeast flanks of Damavand volcano in Abe Ask area (85 km northeast of Tehran, Central Alborz zone). In this study, based on carbon and oxygen isotopic signatures on travertine deposits, the source of spring water was evaluated. Isotopic signatures show that δ13C and δ18O values enrichment in travertines gradually away from the springs. According to the primitive value of δ13C(CO2), travertine was deposited from a hydrothermal metasomatic fluids. Concerning to the linear trend between the δ13C– δ18O of travertine, the main hydrothermal metasomatic fluid (that was responsible for travertine deposition) was probably mixed with fluids of different origins. According to the isotopic analysis, the mantle-sea origin is suggested for the dissolved CO2 of water springs, in addition, the results of water geochemical data also confirmed a deep source for the Abe Ask water springs. According to the remote sensing investigation on satellite images, the distribution of travertine and faults lineation and drainage pattern, suggest the strong effect of surface and tectonic processes, in controlling the placing and distribution of the travertine. Finally, geochemical data on water springs and isotope investigations on travertine reveal both surface and deep-water source contribution in formation of the Abe Ask water springs.   Manuscript profile
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  3 - The identification of the recharge source in the important karstic springs of Khuzestan province using stable isotopes (18O and 2H)
  HamidReza Mohammadi-Behzad دکتر اسماعیل کلانتری  Charchi Arash Nadri
  Sabzab and Bibitalkhone Karst springs are the main discharging points of the Kamarun and Pabdeh karstic anticlines (Asmari dolomite and limestone) in Khuzestan province. The exposed surface of both anticlines are not sufficient to feed the aforementioned springs. Accord More

  Sabzab and Bibitalkhone Karst springs are the main discharging points of the Kamarun and Pabdeh karstic anticlines (Asmari dolomite and limestone) in Khuzestan province. The exposed surface of both anticlines are not sufficient to feed the aforementioned springs. According to the general water balance estimation and the discharge hydrographs of springs, there are important water resources in the region (including the Shahid Abbaspour dam reservoir as well as the Shirgun anticline in the vicinity of the host anticlines of springs) which could contribute in feeding the springs. All of water resources in the target (discharge) and the recharge area were sampled during two rainy (February 2013) and dry (July 2013) periods. The origin of the spring's waters in the target area evaluated using these isotope data, as well as the local meteoric water line (LMWL) in the study area. The average elevation of the recharge area and the probable recharge fraction from the water bodies resources in the region estimated for the springs. The results show that the recharge area elevation of the springs in the target area corresponds to the recharge area elevation in the neighboring karstic anticline. It was also revealed that the Shahid Abbaspour dam reservoir participate in recharging the Sabzab spring. However, the volume of input water from the dam reservoir in comparsion to Shirgun karstic catchment is not considerable. Manuscript profile
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  4 - The effect of precipitation and lithology on hydrochemical characteristics of the Karstic Springs in North Khorasan Province
  Fatemeh Bagheri Gholamhossein karami rahim bagheri Javad Meshkini
  Karstic aquifers are vital water resources which are used for irrigation and drinking purposes in arid and semi-arid regions. Understanding of the hydrogeological behavior of these springs and the qualitative tracing of these water resources are the first step in their More

  Karstic aquifers are vital water resources which are used for irrigation and drinking purposes in arid and semi-arid regions. Understanding of the hydrogeological behavior of these springs and the qualitative tracing of these water resources are the first step in their better management. There are wide outcrops of Tirgan karstic formation in the study area, in the north of Khorasan province. In this area, there are a few karstic springs the discharge rate ranges from 50 to 500 lit/s. The recharge area characteristics of these springs vary significantly with their elevation, catchment size, thickness of epikarst and degree of karstification. In this study, temporal and spatial hydrogeochemcal variations of the five karstic springs including Arnaveh, Rezghaneh, Estarkhi, Ghordanlo and Sarani and 3 rain stations are investigated during one year period. The effects of both precipitation and lithology on the chemistry of these karstic springs are also considered. The dominant rain water types are Ca-SO4-Cl and Ca-HCO3 which change into Ca-Mg- HCO3 type during ground water flow in karstic system. This karstic aquifer is recharged during winter snowfall. The EC values of the rainfall vary from 70 µmohs/cm in Namanloo station to 100 and 150 µmohs/cm in Estarkhi and Ghale Barbar stations, respectively. The summer precipitations have more EC value than winter precipitations. This is due to long trajectory of air masses through arid regions with dust particles. The time series variations of discharge value are negligible in some karstic springs except for Sarani and Estarkhi springs. Hydrochemical composition of Sarani, Ghordanlo and Estarkhi springs are mostly affected by precipitation; while, Arnaveh and Rezghaneh springs with the same precipitation composition in this area have higher EC values. This is due to soil cover in catchment area, dissolution of clay minerals and diffusion. Manuscript profile
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  5 - mythical places in folktales
  Sara  Chalak
  Mythical thought is a kind of worldview that has always saved his situation in humans mind. Mythical idea introduce itself by divide the phenomena of the world into sacred and unholy. Locality is an important mythical subject that differ from modern man’s thinking about More

  Mythical thought is a kind of worldview that has always saved his situation in humans mind. Mythical idea introduce itself by divide the phenomena of the world into sacred and unholy. Locality is an important mythical subject that differ from modern man’s thinking about place. Mythical place differ from its surrounding because it is sacred. It may be an archetype like mount or fountain, or may be it has become sacred because of the unworldly object. It has influential power to characters.it can change characters. Folktale as an old type of oral literature contain the insight, philosophic thought and life style of past human being. One of the mythical subject in folktales is locality. This places cause of the relationship with the transcendental affairs, consider as a mythical place. Most of characters in folktale, change mentally by being there and their destiny change. In this article, we tried to use the theories of great mythologists such as Mircea Eliade and Ernest Cassirer to analyze e few sets of folktales. For this purpose, the places such as mount, fountain, sea, river, garden, well were investigated.and their mythical modality was examined. my research method in this article is descriptive and analithical. . Manuscript profile
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  6 - Iagenetic controls on reservoir quality of the Asmari carbonate succession in the Cheshmeh Khush Field, SW Iran
  جواد هنرمند عبدالحسین امینی
  The Oligo-miocence Asmari Formation in the Cheshmeh Kush Oil Field consists of a mixed carbonate-siliciclastic succession. The carbonate intervals of the Formation display a high degree of vertical heterogeneity created by a complex diagenetic history. This study is aim More

  The Oligo-miocence Asmari Formation in the Cheshmeh Kush Oil Field consists of a mixed carbonate-siliciclastic succession. The carbonate intervals of the Formation display a high degree of vertical heterogeneity created by a complex diagenetic history. This study is aimed to investigate the effect of diagenetic events on reservoir quality of carbonate intervals of the Asmari Formation. Core samples and thin sections were studied from sedimentological and diagenetic point of view. Results from cathodoluminesence and scanning electron microscopy were used to investigate diagenetic features in details. Core analysis data (porosity and permeability) and wire-line logs (porosity and oil saturation values) from studied interval were used in order to examine reservoir properties. Diagenetic studies and their comparison with petrophysical data demonstrated that dolomitization, cementation (calcite, anhydrite and celestite cements), compaction and dissolution are the most important diagenetic events affecting porosity and permeability of the reservoir. Based on vertical distribution of diagenetic features and reservoir characteristics, diagenetic zones (DZ) of the carbonate succession were introduced. Medium crystalline dolostones with sparse compaction features and limited anhydrite cement (DZ-23, 27 and 30) comprise the highest value of porosity and permeability. Whereas intense mechanical and chemical compaction and evaporate (anhydrite and celestite) cementation in some dolomitic intervals have thoroughly reduced reservoir quality (DZ-12, 11 and 24). Compaction and calcite cementation (coarse spary, equant and poikilotopic types) in some limestone intervals damaged reservoir properties and created non-reservoir intervals (DZ-3, 20 and 17). In contrast, high value of interparticle and dissolution porosities along with minor compaction and cementation effects has improved reservoir properties of the Asmari limestones (DZ-31 and 32). This study shows that the reservoir characteristics of the Asmari Formation in the studied field are dominantly affected by diagenetic events and therefore diagenetic studies and determination of diagenetic zones in field-scale are the most important part in static reservoir modeling and Manuscript profile
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  7 - Analysis Correlation of Seismo-Tectonic in Bakharden-Quchan Zone with Geometry Disorders of Earthquakes
  Javad Biglari abbas kangi abdolreza jafarian
  The most seismic activities have observed around and along major fault systems of this zone in NE Iran that involving of an array active right lateral-strike slip faults have distributed by trending NW-SE. neotectonic activity and mechanism changing of faults to reverse More

  The most seismic activities have observed around and along major fault systems of this zone in NE Iran that involving of an array active right lateral-strike slip faults have distributed by trending NW-SE. neotectonic activity and mechanism changing of faults to reverse trusting faults have caused to increase stress, shortening and increasing seismicity with high density of earthquakes in their ends bending. Structural relation faults between this zone and Binaloud through Meshkan thrusting-transfer zone which is major motion engine of Bakharden-Quchan zone to put it constantly under neotectonic stresses convergence of Arabia-Eurasia plates since last phase Alpine orogeny. In this paper Fractal analysis through box counting method has done and D values change between 0-2. If D closes to zero, faults an earthquakes are focusing in a point with high tension and if D closes to 2 is shown low tension, dispersal faults and earthquakes in whole of region. Both surface/volume fractal dimension distribution show higher seismicity activity in Central and Western parts of Kopeh Dagh in NE Iran. Manuscript profile