Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16276 FA Journal Article 1970 01 01 More than 500 specimens were collected from a coral reef with a thickness of 4-6 m in the Devonian sediments of Gereek section located 75 Km, northern Kerman city and studied for corals at the level of genera and species. The reef mainly consists of Rugosa and Tabulate corals. Among these two groups of corals, 9 genera and species were identified from the coral reef of Gereek section including Disphyllum aespitosum, Hexagon aria hexagona, Macgeea ponderosa, Argutastrea sp., Column aria sp.,Alveolites sp. Chaetetes sp, Thamnopora sp. and Michelina sp. Among the above mentioned coral fossils the geneus of Disphyllum is more abundant than rest, the reef of Gereek is characterized by well-developed of main reef, and unrecognizable of fore-reef and back reef, In addition to the coral fossils, other fauna occur that include brachiopoda, gastropoda and bryozoans, but the stromatoporoid is very rare. The studied sediments of the Gereek bearing reef section have been assigned to Lower Paleozoic by other geologists but this study reveals that the sediments of bearing reef related to that Early Late Devonian (Frasnian). Recent studied of conodonts such as Icriodus alternatus, polygnathus churkini and polygnathus cohlertica also suggest frasnianage for the strata. More than 500 specimens were collected from a coral reef with a thickness of 4-6 m in the Devonian sediments of Gereek section located 75 Km, northern Kerman city and studied for corals at the level of genera and species. The reef mainly consists of Rugosa and Tabulate corals. Among these two groups of corals, 9 genera and species were identified from the coral reef of Gereek section including Disphyllum aespitosum, Hexagon aria hexagona, Macgeea ponderosa, Argutastrea sp., Column aria sp.,Alveolites sp. Chaetetes sp, Thamnopora sp. and Michelina sp. Among the above mentioned coral fossils the geneus of Disphyllum is more abundant than rest, the reef of Gereek is characterized by well-developed of main reef, and unrecognizable of fore-reef and back reef, In addition to the coral fossils, other fauna occur that include brachiopoda, gastropoda and bryozoans, but the stromatoporoid is very rare. The studied sediments of the Gereek bearing reef section have been assigned to Lower Paleozoic by other geologists but this study reveals that the sediments of bearing reef related to that Early Late Devonian (Frasnian). Recent studied of conodonts such as Icriodus alternatus, polygnathus churkini and polygnathus cohlertica also suggest frasnianage for the strata. https://jos.ut.ac.ir/article_16276_6280be7f7a229d80307f363f5909bedf.pdf

Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16277 FA Journal Article 1970 01 01 The Doran Granite is situated at 12 Km south of Zanjan. It is overlain nonconformably by the Bayandor Formation. The presence of some phyllitic and shaly enclaves of the Kahar Fm. within Doran granite indicates that the latter has been injected into the former. The existance of cordierite hornfels and biotite hornfels at the boundary with Kahar Formation is probably related to the great volume :f this granite at depth. The granite, in the outcrop, is white, devoid of ferromagnesian minerals, and contains some kind of pink granite intrusions. Formerly, the Shah-Bolaghi, Sarve-e-Jahan, and south Mahabad intrusions, were considered to be of Doran granite type, and Mahabad arid Sain-Dej’s rhyolites are extrusions of the same granite. However, the results of the present investigation indicate that the Sarv-e-Jahan and Shah Bolaghi intrusions themselves are two distinct types of granite. Among these two, only the white and devoid of ferrornagnesian type is of Doran type and has genetic relations with it. From the viewpoint of tectonic setting all these mentioned granites intrusions could be attributed to anorogenic A-type granites group, that is re1atd to an extent ional phase which has probably taken place at infracambrian time. The south Mahabad intrusion is granodiorite and is not genetically related to Doran granite. By comparing the Mahabad and East Sain-Dej rhyolites with Doran granite it appears that, although they might be formed under similar conditions, but they are not originated from the same source. The Doran Granite is situated at 12 Km south of Zanjan. It is overlain nonconformably by the Bayandor Formation. The presence of some phyllitic and shaly enclaves of the Kahar Fm. within Doran granite indicates that the latter has been injected into the former. The existance of cordierite hornfels and biotite hornfels at the boundary with Kahar Formation is probably related to the great volume :f this granite at depth. The granite, in the outcrop, is white, devoid of ferromagnesian minerals, and contains some kind of pink granite intrusions. Formerly, the Shah-Bolaghi, Sarve-e-Jahan, and south Mahabad intrusions, were considered to be of Doran granite type, and Mahabad arid Sain-Dej’s rhyolites are extrusions of the same granite. However, the results of the present investigation indicate that the Sarv-e-Jahan and Shah Bolaghi intrusions themselves are two distinct types of granite. Among these two, only the white and devoid of ferrornagnesian type is of Doran type and has genetic relations with it. From the viewpoint of tectonic setting all these mentioned granites intrusions could be attributed to anorogenic A-type granites group, that is re1atd to an extent ional phase which has probably taken place at infracambrian time. The south Mahabad intrusion is granodiorite and is not genetically related to Doran granite. By comparing the Mahabad and East Sain-Dej rhyolites with Doran granite it appears that, although they might be formed under similar conditions, but they are not originated from the same source. https://jos.ut.ac.ir/article_16277_56f3594d01d60ff2de73a8358830eb7f.pdf

Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16278 FA Journal Article 1970 01 01 In all the ineventory control policies introduced so far, the review periods are taken to be constant and independent from the inventory level. In the classical (s,S,T) policy the length of all periods is constant and equal to T time units. Recent methods takes the duration of the first period different from the others, but steel a constant. Obviously, the inventory level has a direct economical effect on the periods length. This paper describes a new control method of inventory systems in which the length of the review periods are calculated as a function of the inventory level. If the level at the beginning of a period is i, the period’s length is taken to be ?(i). Then by this method, the annual cost for given s and S becomes a function of ?(i), which is minimized with respect to ? . The result is the optimal valure of ?(i), namely ?(i), for any . In all the ineventory control policies introduced so far, the review periods are taken to be constant and independent from the inventory level. In the classical (s,S,T) policy the length of all periods is constant and equal to T time units. Recent methods takes the duration of the first period different from the others, but steel a constant. Obviously, the inventory level has a direct economical effect on the periods length. This paper describes a new control method of inventory systems in which the length of the review periods are calculated as a function of the inventory level. If the level at the beginning of a period is i, the period’s length is taken to be ?(i). Then by this method, the annual cost for given s and S becomes a function of ?(i), which is minimized with respect to ? . The result is the optimal valure of ?(i), namely ?(i), for any . https://jos.ut.ac.ir/article_16278_c3adbe75b3f54f32c23e306ae8f089a8.pdf

Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16279 FA Journal Article 1970 01 01 https://jos.ut.ac.ir/article_16279_b3a1638ca990e38d33e0287ad4ea0c3f.pdf

Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16280 FA Journal Article 1970 01 01 Abstract Rizo, Asphordi and Hormoz formations which are part of the post tectonic activities of the Katangan Orogeny all have some volcanic rocks similar in lithology, age and petrology which have been the motive for this research. Igneous rocks of these formations are generaly made up of two typs, acidic volcanic rocks with the tendancy towards calc-alkalic composition and basic lava flow or doloritic dykes which are alkalic. These have reached the suite simultaneously with the acidic rocks or soon after them. This contrast or bimodal (acidic-basic) magmatism in addition to petrological and geochemical facts is characteristic of an intercontinental rift similar to the east suite of the East African Rift or previous rifts like Rio grand Rift. Rift in these examples are in an embryonic stage and have never developed to the further stage of ocean building. Most probably the basic rocks have originated from the asthenosphere and partial melting of the upper mantle. While the resulting magma has been rising and settling in suitable depth the diffraction and crystalization has taken place and partial melting of the upper crust has occured so that the calc-alkalen acidic magma in the form of rhyolitic lava flow has reached the ground after some fierse pyroclastic activities. The scarsity of the basic rocks may be explained by their higher density than the very viscous acidic rocks which have been over them hence only dykes and small intrusions could form and the number of these has been increased after consolidation of the acidic mass. We would like to express our gratitude to the Tehran University Research. Council for making it possible to carry on this research project by supporting it through Research Centre for Desert and Barren lands of Iran. We also deeply appreciate the help we received from Prof. Abdoraheem Hushmandzadeh for making the unpublished data from the Compiling and Publishing Office available to us. Abstract Rizo, Asphordi and Hormoz formations which are part of the post tectonic activities of the Katangan Orogeny all have some volcanic rocks similar in lithology, age and petrology which have been the motive for this research. Igneous rocks of these formations are generaly made up of two typs, acidic volcanic rocks with the tendancy towards calc-alkalic composition and basic lava flow or doloritic dykes which are alkalic. These have reached the suite simultaneously with the acidic rocks or soon after them. This contrast or bimodal (acidic-basic) magmatism in addition to petrological and geochemical facts is characteristic of an intercontinental rift similar to the east suite of the East African Rift or previous rifts like Rio grand Rift. Rift in these examples are in an embryonic stage and have never developed to the further stage of ocean building. Most probably the basic rocks have originated from the asthenosphere and partial melting of the upper mantle. While the resulting magma has been rising and settling in suitable depth the diffraction and crystalization has taken place and partial melting of the upper crust has occured so that the calc-alkalen acidic magma in the form of rhyolitic lava flow has reached the ground after some fierse pyroclastic activities. The scarsity of the basic rocks may be explained by their higher density than the very viscous acidic rocks which have been over them hence only dykes and small intrusions could form and the number of these has been increased after consolidation of the acidic mass. We would like to express our gratitude to the Tehran University Research. Council for making it possible to carry on this research project by supporting it through Research Centre for Desert and Barren lands of Iran. We also deeply appreciate the help we received from Prof. Abdoraheem Hushmandzadeh for making the unpublished data from the Compiling and Publishing Office available to us. https://jos.ut.ac.ir/article_16280_38f1435715b6cf42627aca54729df4c1.pdf

Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16281 FA Journal Article 1970 01 01 The purpose of the present study is to investigate the petrogenesis of some basic intrusives, with the same relative age (Upper Jarassic), in Sanandaj-Sirjan metamorphic belt. For this purpose, Almogholagh, Cheshmeh Qassaban, Serkan and Bouin-Miandasht basic intrusives have been selected, for out studies. These are small bodies with a limitted outcrops accompaynig by granitoidic bodies of Almogholagh, Alvand, and Bouin-Miandasht. petrographically, these basic intrusives show different compossitions from olivine-gabbro to diorite pegmatoid and they are intersected with few microgabbroic and mirodioritic dykes. Radiometric age determination and chronostratigraphic studies indicate that the basic intrusives have intruded into older regional metamorphic rocks, during Upper Jurassic which conseqerntly lead to a high-grade contact metamorphism in ablite-epidote to pyroxene hornfels facies. These masses have tholeiitic nature and lack any lithologic, mineralogic or geochemical continuum with their neighboring granitoids. The mechanism responsible for their generation is independent of the proceses compared to their accompanied granitoids. These basic intrusives with such chracteristics can be considerd as “precursor gabbros”. The basic intrusives has been disturbed and intersected by the latter emplacement of granitodic masses in Sanandaj-Sirjan metamorpic belt (in Upper Cretaceous-Lower Paleocene). The basic rocks have been undergone a considerable metasomatism indicated by the observable evidences of biotitization and tourmalinization. The purpose of the present study is to investigate the petrogenesis of some basic intrusives, with the same relative age (Upper Jarassic), in Sanandaj-Sirjan metamorphic belt. For this purpose, Almogholagh, Cheshmeh Qassaban, Serkan and Bouin-Miandasht basic intrusives have been selected, for out studies. These are small bodies with a limitted outcrops accompaynig by granitoidic bodies of Almogholagh, Alvand, and Bouin-Miandasht. petrographically, these basic intrusives show different compossitions from olivine-gabbro to diorite pegmatoid and they are intersected with few microgabbroic and mirodioritic dykes. Radiometric age determination and chronostratigraphic studies indicate that the basic intrusives have intruded into older regional metamorphic rocks, during Upper Jurassic which conseqerntly lead to a high-grade contact metamorphism in ablite-epidote to pyroxene hornfels facies. These masses have tholeiitic nature and lack any lithologic, mineralogic or geochemical continuum with their neighboring granitoids. The mechanism responsible for their generation is independent of the proceses compared to their accompanied granitoids. These basic intrusives with such chracteristics can be considerd as “precursor gabbros”. The basic intrusives has been disturbed and intersected by the latter emplacement of granitodic masses in Sanandaj-Sirjan metamorpic belt (in Upper Cretaceous-Lower Paleocene). The basic rocks have been undergone a considerable metasomatism indicated by the observable evidences of biotitization and tourmalinization. https://jos.ut.ac.ir/article_16281_4a1b27c688e8cfc3940da0026350ceff.pdf

Journal of Science,University of Tehran(not publish) 1 0 1996 06 21 - - 16282 FA Journal Article 1970 01 01 The nitrogen and oxygen donor sites in close proximity or the aminocarboxylic acid groups in aminoacids, tends to form stable complexes with metal ions, and also lanthanide ions are gaining increasing importance due to their close resemblence and the need to extract and separate them from each other. In present investigation the aminoacid-Rare earth systems have been studied. This study is undertaken by the Calvin-Bjerrum's potentiometric titration technique. and PL is determined. Using these values the metal-ligand and proton-ligand stability constants have been determined and reported. The solvents used were: water and 50% DMSO, DMF, Methanol and isopropanol. The nitrogen and oxygen donor sites in close proximity or the aminocarboxylic acid groups in aminoacids, tends to form stable complexes with metal ions, and also lanthanide ions are gaining increasing importance due to their close resemblence and the need to extract and separate them from each other. In present investigation the aminoacid-Rare earth systems have been studied. This study is undertaken by the Calvin-Bjerrum's potentiometric titration technique. and PL is determined. Using these values the metal-ligand and proton-ligand stability constants have been determined and reported. The solvents used were: water and 50% DMSO, DMF, Methanol and isopropanol. https://jos.ut.ac.ir/article_16282_315b9d44d78b5bd99993d618c7ece5ea.pdf