Abstract
The previous studies on the Elamite pottery generally focused on the form and shape of the artifacts. From the perspective of fabric, very few studies have explored the Elamite pottery. The pottery type studied in this paper is orange (ranging from light brown to red) composed of a tempering material, sand and white particles. The core of this no ornamented, wheel-built pottery is black. In an investigation to outline the scope and boundaries of Haft Tapeh ancient city, a number of the Elamite pottery samples were recovered in certain layers dating back to the late ancient Elam (Sukalmah) and the Middle Elamite near the adobe structures of Haft Tapeh. Haft Tapeh refers to a structure belonging to the Elamite Era located in Khuzestan and south of Susa. One major finding in this city is a tomb from the Middle Elamite Era. Since 1965, this building has been investigated by Negahban and later by Mofidi-Nasr abadi. Thus, Haft Tapeh can undoubtedly be considered a city belonging to the Elamite Era. In this light, the pottery type in this geographical scope can be particularly useful for comparison of similar artifacts found in Isfahan and Chaharmahal and Bakhtiari, both of which could be associated with the Elamite Era. This study focused on Asgaran and Saba as two regions in Isfahan and central part of Ardal in Chaharmahal and Bakhtiari. A total of 10 pottery samples were randomly selected from these regions. They were then compared in terms of fabric and composition against 4 counterparts found in archaeological layers of Haft Tapeh belonging to the Elamite Era. It should be noted that the two-color body in the pottery sample is not at all associated with the type of compounds or curing temperature, Since the two parts are identical in terms of composition. Moreover, it seems that the main reason for the two-color body lies in the curing conditions and techniques (oxidation and reduction) inside the furnace, leading to two different colors. Apart from that, there is a kind of orientation in the components of pottery samples, potentially indicating they were built on wheels.
Keywords: Elam, Orange-Red Pottery, Petrography, XRD, Ft-IR.

Introduction
One of the surrounding regions cover the north of present-day provinces Fars and Khuzestan as Elamite centres in the ancient era. The noteworthy point about these regions is their potentially rich metal mines. This has been mentioned in the Mesopotamian inscriptions, mainly explaining the link between the Mesopotamian plain and the highlands of Elam. The present-day provinces, Khuzestan and Fars, have small potentials for metal mines. Hence, they only served as surrounding regions supplying the metals. However, little investigation has been done on the archaeological data from the Elamite Era. It is crucial to carry out a historical study on these regions along with the archaeological data to enlighten the dark spots in the Elamite Era, and ultimately provide a toponymy of the Elamite cities. One instance of such archaeological data involves various types of local pottery in Khuzestan (as a central city of Elam), which was compared through petrography against the samples recovered in Isfahan and Chaharmahal and Bakhtiari (as two dently the era in surrounding regions). Thus, this paper intends to discuss more con which this type of pottery was built and its origin in order to provide a toponymy of the previously mentioned cities based on historical and archaeological data. In Miankooh, Ardal, more than 76% of Elamite sites have been reported to be nomadic. This is highly important alongside the neighborhood of this province and Isfahan with regard to the toponymy of Zabshali and LU.SU. Meanwhile, there are a considerable number of pottery samples from this region comparable to their counterparts across the Elamite centers. 
The surrounding regions of Elamite centers (Susa and Anshan) have so far been rarely explored. One of such surrounding regions stretched across the norther of Elamite centers, covering certain areas of present-day provinces Isfahan and Chaharmahal and Bakhtiari. In addition, there are pottery samples from the Elamite Era found in Khuzestan (as one of the central districts of Elamite), even though they have rarely been explored in studies on the Elamite Era. This can be partly associated with the limited number of such pottery samples against their counterparts from the Elamite Era in Khuzestan. Nonetheless, the noteworthy point about this pottery type is the great similarity (discussed later) in Khuzestan to those recovered in Isfahan and Chaharmahal and Bakhtiari. Therefore, this study attempted to explore these regions from the Elamite Era through an interdisciplinary approach involving archeology, archeometry and history of northern Susa and Anshan. Despite the importance of the regions surrounding Elamite centers (Susa and Anshan) based on the Mesopotamian inscriptions, insufficient effort has so far been made to investigate the Elamite Era in Isfahan and Chaharmahal and Bakhtiari as two surrounding regions. Nevertheless, the pottery type studied in this paper has been frequently found in Isfahan and Chaharmahal and Bakhtiari. In this study, great effort was made to review the geographical locations of the two provinces in Elamite Era according to written sources and archaeological evidence. Moreover, the pottery artifacts were petrographically examined to find out whether or not the samples recovered in Haft Tapeh, as a key central spot in Khuzestan during the Elamite Era, are congruent with the clay artifacts found in Isfahan and Chaharmahal and Bakhtiari from the perspective of appearance and textural characteristics. In fact, the discussion revolves around the possible involvement and predominance of the Elamite in Isfahan and Chaharmahal and Bakhtiari, while providing a toponymy of ancient Elamite regions in those provinces today.

Conclusion
The specific pottery type in this study indicated a remarkable frequency in Isfahan and Chaharmahal and Bakhtiari. Moreover, it proved to be similar to counterparts recovered at Haft Tapeh (Khuzestan) in terms of fabric, production technique and curing temperature. It is essential to point out the pottery types across the northern Elamite centers which have been rarely explored so far. The specific pottery type examined in this paper can definitely be considered an Elamite artifact. It should originate from the Zagros Mountains in the north of Khuzestan (Bakhtiari highlands). That is perhaps why this type of pottery is less abundant in Khuzestan as opposed to Isfahan and Chaharmahal and Bakhtiari. According to the constituent element of pottery samples, this pottery type does not originate from Khuzestan Plain, but it can rather be traced in Zagros Mountains.  Therefore, it can be argued that the Elamite were involved in dominated Isfahan and Chaharmahal and Bakhtiari, while delving into the toponymy of Elamite cities such as Zabshali and Tukrish in certain parts of Isfahan and LU.SU in Chaharmahal and Bakhtiari. The regions never explored from that very perspective can set out a new avenue of Elamite research into these Iranian provinces. Finally, it is recommended that future studies focus on northern regions of Elamite centers including the present-day Isfahan, Yazd and Chaharmahal and Bakhtiariti so as to clarify many of the archaeological ambiguities of Elamite Era. After all, an in-depth investigation of Mesopotamian inscriptions can help scholars realize the importance of these regions, while revealing their archaeological capacities.

Abstract
The site of Narjuiyeh III is located on the eastern natural mounds of the Narjuiyeh village, from the west overlooking Halil River. Scattering of the fourth millennium BC, especially typical Aliabad type are visible on these mounds. Traces of illegal excavation are also available as pits and holes all over the site. Aliabad ceramics are pottery dating back to the fourth millennium BC (Chalcolithic) in the southeast of the Iranian plateau, first excavated and reported by Caldwell from Aliabad in Bardsir of Kerman, and then have been found and reported from fourth millennium layers of Tell Iblis (Iblis IV) which eventually became known as Aliabad Culture (Caldwell, 1967).      Ali-Abad culture potteries (Chalcolithic age) dates back to the 4th millennium BC in southeast of Iran which the distribution of its potteries include the regions of Kerman, Balouchistan and Pakistan. Aliabad pottery in the south-east of the Iranian plateau is one of the most important and prominent pottery types in the Chalcolithic period (Eskandari and Mollasalehi, 2017), which for more detail understanding about this culture in addition to archaeological studies, requires scientific archaeometric analysis and methods; therefore, the aim of the present study is to investigate, study and further understand the fourth millennium BC pottery of Aliabad culture from Jiroft’s Narjuiyeh III site and understanding the expansion of this culture by using structural and technical studies of pottery of this period. At the same time, it has been attempted to use the method of mineralogy (petrography) to get information about how to process the paste, clay type and used temper, conditions, heating and temperature of baking in the furnace, as well as the understanding of the origin of pottery of this area. Archaeological studies show that Aliabad culture in the southeast of the Iranian plateau was the dominant culture of the region in the fourth millennium BC. In this study, it has been attempted to obtain mineralogical information regarding pottery (Aliabad pottery) using library and thin section petrography studies. The polarized binocular microscope JamesSwift made in the United Kingdom at the Petrographic Laboratory of the Institute for Restoration and Conservation was used for microscopic study of the studied pottery.
Keywords: Archaeometry, Petrography, Aliabad Culture, Narjuiyeh in Jiroft, Southeast of Iran.

Introduction
From the textural point of view, the pottery was divided into two main categories of fine-grained and coarse-grained specimens. In fine-grained specimens, the components are less than 0.5 mm in size, and the components are finely crystallized in the texture of pottery. A group of pottery has immature silty texture. In the texture of these potteries, there are fragments of different sizes next to each other, and there is some clutter and disarrangement to the size of the minerals in the pottery. In terms of composition, all available pottery has the same composition and their difference are in the percentage of pieces in the pottery texture and their size. In all available ceramics, there are several minerals, including quartz, in the form of monocrystalline (monocrystalline) and polycrystalline, which are more abundant in monocrystalline form. This mineral has angular to semicircular margins indicating that quartz fragments have been added as secondary to the primary source. In some samples, minor amounts of plagioclase, pyroxene and amphibole with mica are observed. Mica minerals are mostly muscovite grains that are orange-colored, but sometimes orange-yellow muscovite grains can also be seen in the samples. This reaction is due to the change in the optical properties of the grains at a temperature of approximately 1000 degrees Celsius, which can be partially detected the temperature the pottery tolerated on during the heating process. In some samples igneous rock, chert and quartz rock fragments were used as fillers. In some pottery, calcite minerals can also be observed and used to detect its temperature range. Therefore, it can be concluded that due to the geology of the region and the presence of calcium carbonate in the sedimentary deposits of the region, the absence of calcite mineralization in some samples indicates that the temperature of the ceramics is higher than 800 °C, and in calcite-clay ceramics, the baking temperature of the clay is less than 800 °C (Reedy 2008; Riederer 2004). The two N9 and N7 specimens differ in composition from the other specimens. In these two samples calcite minerals are associated with the clay texture, whereas in the other samples this is not the case.

Conclusion
Based on the petrographic study of the pottery, it can be deduced that the source of the pottery studied was identical and their source material was from the same region in Kerman. However, the origin of manufacture and extracting of soil mines cannot be determined definitely, because the geology of the Kerman region is very large and vast especially the studied areas are in volcanic formations, which, the mineralogical composition and sequence of some of them are granite, granodiorite to quartz. Metamorphic, plagioclases, clinopyroxenes, and mica minerals and igneous and metamorphic rocks are within the geological family of the area, which exactly similar compounds can be found with the minerals in the pottery. There are also three different groups for these pottery: 1) Pottery with homogeneous texture. In this type of pottery, fragments and minerals are seen floating and scattering in the texture. 2) Pottery in the texture in addition to clay and fine minerals, phyllosilicate minerals (mica) exist in combination with the texture. 3) In these ceramics the combination of the texture of mineral carbonate calcium (calcite) together with the clay texture is visible, a situation not seen in the other samples. This indicates that the pottery used has different manufacturing techniques, therefore, several pottery makers have been involved in preparation and procurement of early paste and clay of the pottery. Pottery samples N5, N6, N7, N8 and N9 contain calcite minerals. It can be suggesting that the baking temperature of these pottery was less than 800 degrees Celsius. In the samples containing muscovite minerals, some of the grains show changes from orange to yellow, indicating that these ceramics have been sustain a temperature of approximately 950-1000 °C. Based on the results and even the buff-orange color of the ceramics, it should be noted that the analyzed pottery were baked in an oxidation condition and in a closed furnace. The type of baking and precision used in baking the pottery in high quality, especially the 4th millennium BC pottery, is very high, indicating that the technique used in baking pottery was also very professional. Some ceramics, such as (N1, N8, N9) have porphyry texture and in their texture quartz mineral, chert stone and igneous rock have been used as filler and temper. In most cases, the edges of quartz minerals are edged and sharp, which, indicates the use of primary soil and its paste processing and resultant of grinding of core and ore extractive mining because all fragments and sherds have sharp and angular angles as well. It should also be noted that there is no evidence of the use of organic materials as temper in pottery making.

Abstract
Due to the extent of the empire’s territory, the remains of the Achaemenid stone pillars have been registered in different parts of Iran. The remains of this architectural style can be seen in the monumental set of Pasargadae, Persepolis., Naqsh-e Rostam, Lidoma and Tomb-e Bot in Fars Province, the remains of Shush in Khuzestan Province, and stone works of Ecbatana in Hamedan, Rivi Palace in Northern Khorasan Province, and Achaemenid palaces in Borazjan region in Bushehr province. The rock mining of these monuments was recognized as local. However, in Boushehr Province, two ancient mines of Pouzepalangi Rahdar and Tang-e Gir of Borazjan Region have been named. The maximum extraction and application of the crème color stones from the Puze- Palangi mine were registered from the palaces of the Borazjan Region. However, for the geological structure of the black-gray stone of Acamenian palace in Charkhab of Borazjan, samples of this type of stone were extracted from Charkhab palace. These samples were compared with the gray-black samples of the Bardak-e Siah and Sang-e Siah Palaces of Borazjan. With the petrographic studies of thin sections obtained from the palaces and chemical analysis of XRD and XRF, the structural process of the gray-black samples of the Achaemenid palaces of the Borazjan region entered a new stage. The results of the petrography studies indicate that the gray-black stone samples of Charkhab palace corresponded to the sample of Sang-e Siah Palace and Badak-e Siah, considering the microsprite and sprite background, and the few amount micrite as well as the layered structure. Also, the analysis of the analytical samples of XRD and CRF of these stones indicates that the samples of Charkhab Palance and Sang-e Siah are the same. Given that no trace was found in the mining for the gray-black stones in Boushehr Province so far, it can be then claimed that these stones were extracted from a non-local mine. 
Keywords: Borazjan, Charkhab Palace, Bardak-e Siah Palace, Sang-e Siah Palace, Petrography, XRD, XRF.

Introduction
The coasts of the Persian Gulf, especially the ports of Bushehr and Borazjan in the golden age of Elam, i.e., the late 2nd millennium BC, has been one of the important centers of trade and the interface between the sea route of Shush and India. The fertile and tropical areas of Dashtestan were among the areas where the Achaemenid dominated shores and benefited from the proximity to the sea. They provided places for themselves in these areas so that they could spend the winter there. The building of Charkhab Palace in Borazjan is known as the winter palace of Achaemenid Cyrus due to its great similarity with the private palace of Cyrus in Pasargadae.
Research Questions and Hypotheses: The main questions of research are as follows: What is the structure of black-gray stones used in the Achaemenid architecture of Borazjan palaces? What is the structural relationship between black-gray stone in the Achaemenid palaces of Borazjan (Charkhab, Bardak-e Siah and Sang-e Siah)? Based on current studies, what opinion can be expressed about the mines of Borazjan Achaemenid palaces?
Research Method: Petrography and analytical methods of XRF and XRF were used to the geological structure of the gray-black stones of the stone pillars of Charkhab Palace in Borazjan. In the meantime, using the research method thin-walled structure to observe the minerals and adopting the samples were done with the OLYMPUS BX51 polarizing light transmission microscope, made in Japan, with the capability of filtering light in the XPL mode of the analyzer and emitting polarized light. XRD experiments to identify and detect the crystalline phases forming in the study samples and qualitative and semi-quantitative determination of crystals by powder method (with Cu) target radiation lamp with a maximum potential difference of 40 KV and maximum current intensity of 30 mA, fixed sample and Needle detector) was performed on three samples of historical palace stones in Bim Gostar Taban laboratory in Tehran. The results were analyzed by High Score Plus software. XRF experiments were performed to identify and quantify the constituent elements of study samples of Achaemenid palaces by powder method and with the model device: PW1410 Manufactured by PHILIPS Netherlands in Bim Gostar Taban laboratory in Tehran on the same three samples.

Research Background 
Borazjan city is located 67 km from Bushehr and 226 km from Shiraz. Due to the discovery of a piece of a stone pillar base when digging a water canal in Borazjan in 9171, the General Directorate of Archaeological Research of Iran assigned Dr. Ali Akbar Sarfaraz to explore the site in which this work was discovered.  Dr.Ali Akbar Sarafraz was the head of the Iranian Archaeological Board in Bishapour at that time. Therefore, archeological operations began in this ancient area, and at the end of the one season of the excavation, the main form and structure of the columned hall were manifested. In a study entitled “Spatial analysis of the Achaemenid palaces in Borazjan” the appearance, location, and objects obtained from these sites have been discussed.

Petrography Results 
The gray-black stone of all three Achaemenid palaces of Charkhab (CH1, CH2, and CH3), Bardak-e Siah (BS1), and Sang-e Siag of Borazjan (SS1) are calcareous and boiled in contact with 0.1 normal hydrochloric acids. These carbonate rocks have a microsparite texture to sparite, and are micrite to a small amount, and have few quartz grains.

XRD Analysis of Gray-Black Stone Samples of Achaemenid Palaces in Borazjan Region 
The spectrum of gray-black stones of the Achaemenid palaces of the Borazjan region, which includes the samples of Charkhab Borazjan (CH3), Bardak-e-Siah (BS1), and Sang-e-Siah (SS1), the matching of the spectra of the same limestone is observed. However, based on the peak intensity of calcite in the samples of Charkhab Palace (CH3) and Sang-e Siah (SS1), which shows 11000, are placed in one group. Also, the sample (BS1) with a peak intensity of calcite over 14000 is observed separated from the group.

XRF Analysis 
In the analysis of the black-grey stones of the Achaemenid palaces, the sample of grey-black stones of palaces has been compared as only the samples of palaces are available. Also, the possible mine of the black-grey stones has not been reported in Boushher Province so far. Accordingly, the oxide of the main elements, such as SiO2, CaO, P2O5, TiO2, and MgO, represents particular values in the table. These values are approximately close to each other in the sample of the grey-black stones of the Achaemenid palaces. Therefore, they are considered an appropriate indicator of similarity. Graphs of oxide values of SiO2, P2O5, TiO2, CaO, and MgO of the samples are consistent. Also, the accordance of the oxide values of the mentioned elements, the values of the secondary elements (in terms of ppm) of the gray-black stones of Charkhab (CH3), Bardak-e Siah (BS1), and Sang-e Siah (SS1) rocks are observed.

Analysis and Discussion  
Using the laboratory and scientific methods and comparing the results of this paper with the results of the papers on Pasargadae and Persepolis, the relationship between the sources of extraction of gray-black stones of the complex of Achaemenid monuments in Borazjan Region of the Fars province mines, Majdabad mountain mine in particular, around the Perspolis and Sarpaniran and Ahmadbegi Mines in Pasargadae is rejected. The presence of several large pieces carved from this type of stone in the east of the Achaemenid palace of Charkhab Borazjan confirms that Charkhab palace was in the process of construction. However, these stones which have been left on the ground two hundred meters east of the palace, are reasons for the existence of a stone-cutting workshop of Charkhab palace or another building that has not been excavated yet.

Conclusion 
Studies on the gray-black rocks of Achaemenid palaces show that mining traces or mine exposure of this kind of stone have not been seen or reported in the region. Therefore, it seems that these mines were not local, and the stones were supplied from other sources. Also, the hypothesis based on that the grey-black stone mines might have been local depends on the more extensive field studies in the future.

Abstract
Gray pottery is one of the most significant and important cultural artifacts discovered from the Bronze Age sites in the southeast of the Iranian plateau. This style of pottery has been obtained in a very large amount from the Chagardak Asr-e-Faraghi site of Chah Hashem Plain in Baluchistan, which has so far been far from the views and studies of archeology, archeology and artistic history of the southeast of the Iranian plateau. The main question of this research is about how to make and decorate these pottery. It seems that pottery making was developed in this area and they had different construction methods. The present research has been done by analytical-experimental method and based on laboratory studies. The studied objects belong to the Museum of Southeastern Iran. Measures such as documenting the condition of objects as well as sampling necessary for laboratory tests have been performed at the restoration workshop of the Museum of Southeastern Regions of Zahedan. Then, using thin section petrographic studies (OM) and instrumental analyzes with SEM-EDX and XRD methods, the data are analyzed in order to achieve the research objectives. In this study, 11 samples of gray pottery related to Chegardak area, which were obtained from emergency excavations in 2018, were performed. All pottery was wheeled and gray in dark to light and with different thicknesses but in the range of thin pottery. Archaeological studies on pottery suggest a similar composition, but show that different production methods were used. The pottery in question was pottery produced in high heat furnaces and advanced methods such that precision in construction, elegance and strength were considered by the potters. The results show that pottery in this area has been a very advanced industry that has used iron and manganese-based minerals to decorate the pottery.
Keywords:  Archeology, Petrography, Bronze Age pottery, Chegardak, SEM-EDX, XRD.

Introduction
Southeastern Iran is one of the most important and prominent regions in terms of human evolution in the Bronze Age. Evidence of this is the dispersion and existence of numerous ancient sites and hills related to the third millennium BC in this area. Significant sites such as Burnt City (Tosi, 1976; Biscione et al., 1977; Piperno & Tosi, 1975; Tosi, 1968) ¬, Bumpur (DeCardi, 1968; Mortazavi, 2004; 2006) 2018), Speedge (Heidary et al., 2019), Khorab (Stein, 1937) and Domain (Tosi, 1970) as well as Chegardak area (Heydari et al, 2015) are prominent and prominent examples in Sistan and Balochistan, all of which have been studied and various archaeological studies to date Chagardak Archaeological Site (27 ° 5’14 ‘’ N; 59 ° 7’8 ‘’ E) is located in Delgan city and Dasht-e Chah Hashem village, 10 km northeast of Chagardak village (200 km west of Iranshahr city). This area takes its name from the nearby village, namely Chagardak. This area is located in a flat and low plain. The ancient site of Chagardak in the plain of Chah Hashem Jazmourian includes a hill and two cemeteries related to the Bronze Age of Balochistan. This area has been in turmoil and damaged in 2005 due to extensive destruction and looting by traders. During the salvage excavations carried out in 1397, the Archaeological Department of the General Directorate of Cultural Heritage of Sistan and Baluchestan Province discovered a variety of artifacts, including pottery painted in pea, gray and red. Gray pottery is one of the most important finds from the lesser-known Chagardak site in Balochistan. Therefore, these findings have been analyzed and studied in this pilot study using petrographic, SEM-EDX and XRD methods. In the first stage, petrographic analysis was performed on all pottery. In the study of pottery petrography, a very important issue is the materials added to the pottery paste. All the pottery is wheeled and gray in the range of dark to light and with different thicknesses, but within the fine pottery of this region. Samples were named based on the first letter of the name of the Chagardak site in Latin (CH) and the sample number from 1 to 11. Among these specimens, numbers 1 to 8 are broken and small pieces of pottery obtained in the excavations of this area, and numbers 9 to 11 are pottery that is much more complete and with Ability to perform restoration operations (Table 1). Gray painted pottery is one of the types of pottery that has been obtained in many areas of southeastern Iran. Their designs are taken from the ecology of the region and the culture of the people of that period. Scanning electron microscopy analysis equipped with X-ray fluorescence analysis (SEM-EDX): for microscopic examination of the pottery matrix, identification of minerals as well as melting and vitrification stages of the pottery, as well as identification of the chemical composition of the matrix and minerals. SEM-EDX method was used. The SEM device used is the MIRA3 model made by Tescan, an American product. Also, to identify the composition of pigments used in painting ceramics, the EDX elemental method and the VEGA / TESCAN-XMU model made in the United States, which was coupled to the above SEM machine, have been used. The resolution was 1.5 mm at 15 kV and 4.5 nm at KV1 with BSE detector. Also, the method used in this research is point analysis. The mentioned experiment was performed in Razi Metallurgy Laboratory of Tehran. X-ray diffraction (XRD): X-ray diffraction method has been used to identify crystalline phases and mineralogical studies in the desired pottery. The model of the device used is X’spert Prompd Panytical made in the Netherlands, which has been done in Razi Metallurgical Laboratory of Tehran. The samples were analyzed at 30 Ma current and 40 Kv voltage. Information on the identification of crystal phases based on PDF2 database was reviewed and obtained by Xpert High Score Plus software version 2010. Therefore, how the art of making and recognizing the pottery industry in this region can be one of the most important questions and goals. Therefore, in this research, we have tried to answer some questions such as the following questions by using some common methods of analysis in the archeology of ancient pottery. A) What kind of mineralogical composition does the pottery discovered from Chegardak have? B) Structural and archaeometric studies of ceramics show what kind of process shows in the way of making and baking pottery?

Conclusion
These experiments showed that the pottery has a very dense, hard and non-porous texture, which shows that the prehistoric potters of the Chagardak area five thousand years ago were very precise and skilled in the type of drilling and processing method. So that no emptiness or signs of improper weaving can be found in the pottery. This point should be considered as one of the most important features of gray pottery in this region, especially in the southeast of Iran. On the other hand, the resulting studies show that the soil used in the manufacture and production of pottery paste is very desirable, washed and free of any additives. As their strength is so high after firing that they can not be easily broken, this can be seen well in the type of sintered and semi-glass texture of pottery. Also in XRD phase analysis, the presence of high heat phases was detected. It is very likely that high heat furnaces using regenerative conditions were used in the construction of the pottery. On the other hand, in the archeological excavations and emergency excavations carried out by the archeological group of the area under the supervision of Mohammad Heydari, the architectural remains of a pottery kiln, molten pottery and kiln were discovered, which shows this. This industry has been an art and native production of the people of this area. The last stage of producing a pottery was the methods of polishing and decorating it to produce a magnificent work of art. Elemental studies showed that the prehistoric painter and craftsman of Chagardak used iron-based minerals such as hematite and red recently to record red colors, and a combination of iron-oxide and manganese-based materials to produce black and dark colors.

Abstract
This study aims to recognize and characterize pottery production at the Hormangan site, a Neolithic settlement in the northeast of Fars province, Iran. An examination and analytical study of the potteries on this site was conducted to determine the manufacturing techniques of the Neolithic potteries, understand the raw materials and inclusions, the level of progress and knowledge of the potters from the final products, and the location of the production site. Excavating this site, ceramics and a heated structure, probably an open kiln, were found, belonging to the Mushki phase (6400-6000 BC). Thirty-six ceramic shreds were selected for thin-section petrography analysis according to their macroscopic features. After that, 18 of them were analysed using X-Ray Fluorescence (XRF) and X-Ray Diffraction methods. According to the mineralogical studies and the XRD and XRF analyses, while three different clay types were used to produce these Neolithic ceramics, they were all local productions. These vessels were fired in an open and unsophisticated kiln at an uncontrolled temperature, probably not over 800 degrees. Although the combination of these archaeometrical techniques indicates that there are various sub-angular inclusions in each type of clay, most of the pots are vegetally tempered (chaff-tempered). The existence of the heated structure separately from residential construction, a variety of designs and decorations on the ceramics, and various clay sources all determine that the Neolithic community of the Hormangan site has gone beyond a primitive rural society and as semiprofessional individuals had a surplus of more than their demands.
Keywords: Neolithic Period, Hormangan Site, Ceramic Production, Petrography, XRD, XRF.

Introduction
Hormangan site is a Neolithic site located on the border of the Bavanat River basin, in Jeshnian village, in the northeast of Fars province, Iran. This site was excavated in 2016, revealing two phases dated back to 6373 to 6000 BCE. The earlier phase indicates no traces of architectural structures, and the later phase contributed to the settlements. Moreover, a heated structure was discovered simultaneously with the later phase, surrounded by potteries and divided spaces. Pottery vessels which were discovered from these two phases are similar to the ceramics of Tall-e Mushki, Tall-e Jari B, Kushk-e-Hazar, Tall-e Bashi, and Rahmat Abad. As these types of potteries were first discovered from the Tall-e Mushki, they are known as Mushki phase potteries. The heated structure discovered in the Hormangan site is a unique structure related to producing pottery during the Mushki phase, which was probably an open fire kiln. Since there are no similar structures have been found in the Neolithic sites in the Fars region, this study aims to understand pottery manufacturing technology with multi-analytical approaches. Moreover, considering the two phases of the Hormangan site occupied by different settlers for almost 300 years, it is attempted to differentiate potteries of these two phases from a technological point of view.

Geological Setting
A portion of the Bavanat plain lies in the Sanandaj-Sirejan zone, as well as the Shahreza-Abade- Hambast orogenic belt, characterised by high-quality clay deposits and Devonian sandstones (Houshmandzadeh and Soheili, 1990). Several types of rocks can be found in the Bavanat region (Emami and Yaghmai, 2008), spanning three tectonic-stratigraphic units: Late Permian and Middle Triassic rocks, Late Triassic and Cretaceous rocks, and Tertiary rocks (Ghazi and Moazzen, 2015; Ghorbani, 2011). From the mineralogical point of view, this area includes kaolinite, illite, quartz, and chlorite, and secondary minerals are goethite, paragonite, and gypsum. Also, sandstones and shales have been eroded in most cases, creating debris slides. There is a large hydrographic network density in Tutat Mountain (formed by internal and metamorphic formation). However, there is a lower density of hydrographic network in the Kitaban, Khaleisht, and Khatban Mountains. The clays in this region are therefore expected to contain high levels of lime and quartz minerals, but it is also likely to contain metamorphic minerals (Khademi and Hashemi Nasab, 2011).

Materials and Methods
Hormangan ceramics were primarily divided into six groups based on surface treatment, colour, and decoration style. In further classification, the Hormangan potteries were categorised based on their form, size, place of motifs and ceramic fashioning techniques. After initial macroscopic studies of these ceramic vessels, 36 pottery sherds were selected for thin-section petrographic analysis. For choosing these samples, not only the former classifications were considered, but also it was attempted to select potteries from different phases and various contexts and trenches. The earlier phase includes 14 samples, the later phase 12 samples, and the heated structure 10 samples were selected for this analysis. 
For getting inside into the primary and secondary mineralisation phases, determining firing conditions and maximum temperature, and environmental burial conditions, 18 samples (from those 36 samples) have been selected for the X-Ray Diffraction analysis (XRD) in order to determine the crystalline phase constituents. This methods is necessary as a complementary method to petrography. Moreover, X-Ray Fluorescence analysis as a semi-quantitative analysis has been applied to these 18 samples to detect the chemical characterisation of their main and trace elements and to identify whether the earlier and later phases’ samples become clustered into two different groups or not. 

Discussion
The thin-section microscopic analysis indicated a very porous matrix with angular and semi-angular inclusions, which are mainly quartz, and with traces of vegetal tempers. Moreover, the vessels were fired under the oxidation condition. The inclusions were distributed randomly in the matrix, which suggested that they were not homogeneous and consisted of quartz, limestone, calcite, plagioclase (albite and sanidine), and igneous rock fragments, including muscovite, iron oxide, granite, magnetite, hematite, apatite, and feldspars. In most sherds, secondary calcite was formed, resulting in burial in a humid condition. The XRD analysis enabled us to observe some high-temperature minerals, such as gehlenite and diopside, in some samples. These minerals are usually presented in ceramics when fired at more than 800 degrees. On the other hand, the presence of the main elements MgO+CaO, Al2O3, and SiO2, detected by the XRF analysis and diagramed by the Noll system, indicated a very similar final product in terms of raw materials and inclusions. In addition, Cl, MnO, and SrO have been identified in these samples as trace elements, indicating the environmental conditions of the vessels after abandonment. 

Conclusion
In light of the microscopical observations and the phase and chemical analyses, it was determined that the Hormangan potteries could be divided into three main groups. The potteries of the earlier and later phases could not be distinguished from one another. These three groups are comparable to the region’s geological map, meaning all potteries are locally made. Except for four samples that were fired above 800 degrees, the others were fired at temperatures around 750 degrees. Samples from the earlier and later phases were distributed randomly among these clusters, comprising the Calcareous, Iron-rich, and Calcium-rich matrixes. The clay minerals were all extracted in the vicinity of the site, despite the fact that there were three different types of clay materials. Therefore, the potter(s) at the Hormangan site have chosen diverse clay sources but employed different techniques each time to produce similar results. It has also been noted that samples obtained from the heated structure have very similar characteristics to the ceramics produced in the later phase. According to the absolute dating results, the heated structure and the later phase are contemporaneous. However, in terms of potters’ technological behaviours, this could point to some standardization of ceramic production during this time.
Another question we have attempted to answer is whether the potter(s) added any aplastic materials, such as quartz, to their clay in order to increase its workability. Based upon an ethnoarchaeological study of the current pottery production in ShahReza (Pincé et al., 2019), approximately 230 kilometers away from the Hormangan site, it has been found that additional tempering does not need to be applied to the clay for the production of ceramics, owing to the rich clay sources in the ShahReza-Abade-Hambast orogenic belt (located in the Sanandaj-Sirjan zone). There is a possibility that the richness of clay sources in this region allowed potters to avoid tempering their raw materials during different periods, which will be investigated in more detail in future studies.   

Acknowledgements
Dr Morteza Khanipour has generously allowed access to the Hormangan site’s ceramics for this study, and the authors are very grateful for his generosity.

Abstract
An archaeological survey was carried out in 2019 with the aim of identifying and investigating the Ilkhanate period on the banks of the Aras River in East Azerbaijan province. The present study focused on the study of the large, wide, mountainous and impassable gates called “Sham Valley”, which was formed by the confluence of two major rivers of the Aras with Aqchay, which extends near the city of Khoy and was important in the field of trade relations and culture. The strategic and geopolitical position of the region with the surrounding regions such as the Caucasus, Turkey and Central Asia, as well as its geoeconomic position as a corridor of communication corridors led to many cultures and civilizations from the second millennium BC to later epochs. Alternating in this area. In other words, the main factor for the emergence of these ancient settlements is the location of the trade routes, the easy inter-regional and supra-regional communication, especially during the Mongolian Ilkhanate period, which played an important role in the development of cultures in the Sham valley. On the other hand, due to the religious importance of this region during the Mongolian Ilkhanate period, based on its foreign policy and the existence of important churches such as the church of Saint Stepanos Monastery, the Qarah Church and Zur Zur Church, which are known in the world and in whose case there are no reports or documents, there is no archaeological activity; therefore, a careful study of this area, as well as the study of the ceramics obtained from these areas, has provided useful information about pottery technology and the social structure of the area in different cultural periods, especially the Ilkhanate period.
Keywords: Northwest Iran, Jolfa, Sham Valley, Ilkhanid Pottery, Petrography.

Introduction
As a result of the study, 53 ancient sites from prehistory to Islamic times have been identified and recorded; areas such as the Naneh Maryam Cemetery and the Chupan Church are the most important. In these areas a significant number of Middle Islamic centuries ceramic pieces were carved in simple glazed form. It is important to identify the constituents of each pottery, to determine the difference in composition and constituents between the samples, to determine the percentage of each constituent, to determine the baking temperature of the pottery based on the available minerals, and finally to archaeologically study its origin and understand the social structure of the area. Knowledge of the pottery’s components can provide us with useful information about the geographical origin of pottery in the region and its consumers.

Materials and Methods
Thin-section petrography is one of the common and widely used methods in geology and archaeology. This method is employed to examine a broad range of materials such as rocks, minerals, ceramics, slag, bricks, and plaster (a mixture of lime and gypsum). In this technique, an extremely thin section of the rock or ceramic object under study is prepared. This section is thin enough to allow light to pass through it. Then, by placing it under a polarizing microscope, the minerals present can be analyzed. Since minerals exhibit different properties and colors under polarized light, petrography specialists can distinguish them from one another; thus, it is possible to identify the types of minerals, their characteristics, shapes, and sizes in rock or ceramic samples (Ellis, 2000). Moreover, ceramic petrography provides valuable information regarding the technical characteristics of ceramics, such as whether the vessels are wheel-thrown or handmade, and the additives incorporated into the ceramic paste (temper). These tempering materials typically include fragments of igneous rocks, siliceous particles, and silt and clay components. All plant-based and organic materials in ceramics are eliminated at temperatures of approximately 200 to 250 degrees Celsius, leaving only their voids behind (Mousavi-Faghih, 2018).
For the microscopic studies of ceramics obtained from the Sham valley survey, a James Swift model polarizing binocular microscope was used. The magnification applied in this study was 4X. To facilitate the presentation and analysis of results, the petrographic data were organized in a table. The first row of the table lists the components constituting the ceramics, and the first column provides the name and number of each ceramic sample separately. The presence of each component or mineral in the sample is indicated by an asterisk (*), while its absence is marked by a dash (–). If the abundance is minor or trace, it is denoted by (tr). The selected samples for this study come from two sites: the Naneh Maryam cemetery area (code C.042) and the Chopan Church area (code C.053). Ceramics consist of two main parts: the paste (matrix) and the tempering materials. In ceramic petrography studies, a significant focus is given to the additives mixed into the paste. Archaeologists typically consider components larger than 0.1 millimeters as temper or inclusions. In the study of ceramic samples from the Darreh Sham sites, the petrographic method was employed to identify the components and compositions present in the ceramic paste.

Conclusion
Since the Sham Valley in northwestern Iran has been considered on the basis of texts and travelogues since the early Ilkhanate period, there is a need to inform the patriarchs about the use of pottery from the Middle Islamic period and its production. Accordingly, petrographic studies were carried out on 12 pieces of pottery from the two sites of the Neneh Maryam cemetery and the Chupan church to determine the place of production of these ceramics. On the basis of the available samples and on the basis of the analyses carried out, it was found that the composition of all the pottery studied was related to the Jolfa area and the river sediments and alluvial deposits of the Aras river, as well as seasonal and local rivers. With regard to the baking temperature of the pottery, with the exception of the site of the Shepherd Church, where all the potteries studied had no calcite and tolerated temperatures above 800 degrees Celsius, potteries from other areas tolerated temperatures below or close to 800 degrees Celsius. Two categories of inclusion or temper are observed in the composition of the paste. One technique was used in the production of all glazed ceramics. In this way, a layer of glaze can be seen on the outer surface of the sample and, depending on the desired color, a layer of metal oxide can be found underneath. Underneath the glaze layer is a porcelain layer (a mixture of fine-grained quartz and white clay), which lies directly on the clay body. Furthermore, based on the composition and petro fabric of the examined ceramic samples from this area, it can be concluded that the ceramics are almost identical and similar in composition and origin.