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Parasto Masjedi-Khak, Mostafa Khazaei, Ali Aarab, Seyed Iraj Beheshti,
year 5, Issue 15 (6-2021)
year 5, Issue 15 (6-2021)
Abstract
Abstract
Due to the long lasting durability of pottery, they remain unchanged and plays an important role in archaeological researches. Aside of its difference usage in archaeological research such as dating, artistic and subsistent and communications and exchanges among people of different regions, is used in technology level. Archaeological site of Tape Kelar Hill, situated near Hasankif city, in Kelardasht, is one of the most important prehistoric sites in southern coast of Caspian Sea, which includes cultural materials from the Late Chalcolithic from the fourth millennium B.C. to the Islamic era. The significance of this site has become twofold considering the previous views issued about prehistoric cultures in western Mazandaran and Gilan provinces. The Early Bronze Age potteries of this site are of Kura-Araxes. These are the most important finds of this site. The main research question of this article pertains to the structure of the pottery in this area in two periods and aims to see whether or not the initiation of Kura-Araxes pottery has resulted from external factors and there is difference between Early and Middle Bronze Ages? In this study, 15 pieces of pottery from Early and Middle Bronze ages were studied via petrography method in order to compare in terms of composition and mineral tissues. Research has shown that the pottery of this site, in spite of experiencing some changes in the tissues, is local production. Therefore, it is rebutted to claim that the pottery of this culture is simulated by indigenous potters.
Keywords: Kura-Araxes, Middle Bronze Ages,Tape Kelar, Petrography.
Introduction
Petrographic study of Kura-Araxes pottery, despite its prevalence outside of Iran, has not received much attention from Iranian archaeologists. The first petrographic study of Kura-Araxes pottery in Iran was also conducted by Western archaeologists. The study of Kura-Araxes pottery in areas far from emergence region of this culture in Iran requires data from sites that had a stratigraphic-chronology continuity that was not available until the excavation of Tapeh Kelar.
In terms of the location of the sites studied by the petrographic method prior to the present study, two general classifications can be proposed: first, the sites that were within the geographical area of the origin of the Kura-Araxes culture, and second, the area- Those who are far away and outside the region of origin and only in the second stage of the development of the Kura-Araxes culture reached this culture.
This classification can be useful in analyzing the existence of trans-regional connections with the Caucasus or northwestern Iran, along with comparing the minerals of Tapeh Kelar pottery with the petrology of Kelardasht region. In this research, the authors have studied Kura-Araxes pottery obtained from the excavations of Tapeh Kelar site based on petrographic method.
This research is based on two questions. The first question of this research is that according to the minerals in Kura-Araxes and Middle Bronze Age pottery, what are the similarities or differences between them? And the second question includes the question that based on the petrographic study of the pottery samples of Tapeh Kelar, which of the ideas on how to spread the Kura-Araxes culture can be considered more logical for the emergence of this culture in the site? Based on visual evidence and cultural materials that show major changes in the transition from the Late Chalcolithic period to the Early Bronze Age, it can be expected that major changes have occurred in the field of process of pottery making and heating.
Discussion
In this study, 15 sample of potsherds obtained from excavations at Tapeh Kelar were selected. Samples were selected from Early Bronze Age (Kura-Araxes) and Middle Bronze Age contexts. Of these, 10 samples belonged to the Early Bronze Age and 5 samples belonged to the Middle Bronze.
10 samples of the Early Bronze Age were selected for the study. Samples can be divided into two main categories based on texture: samples with porphyry (coarse-grained) texture and samples with silty (fine-grained) texture. 9 samples have porphyry and coarse-grained texture and only sample number 4 has silty texture. 5 samples of pottery belong to the Middle Bronze Age. The samples have a dark background and a dark color.
Two types of silty tissue (samples 2, 4 and 5) and porphyry can be seen in the samples. Minerals detected in the samples are: quartz (clear and cloudy), plagioclase, amphibole and pyroxene, iron oxide, mica, Intrusive and extrusive volcanic rocks, silt and shale, chalcedony, agate and nepheline.
In the studied samples, some minerals are interesting. Nephline is rare in Iran. In Iran, due to the scarcity of alumina and other items that required nepheline, this mineral was importef from other countries due to its scarcity. Since the 1960s, several sources of nepheline have been reported in the northwest, such as Kalibar, Razgah, Bozqush, and Azarshahr.
Two other regions, namely the north of Shahroud and the central Alborz region, also have this mineral. In the north and northeast of Shahroud city in the Sultan Meidan area, the presence of nepheline mineral has been reported. However, due to the fact that the spread of Kura-Araxes culture was not to Shahroud city, the existence of Shahroud nepheline mineral has no role in the subject of this article. The third region, which is the central Alborz, is important in two ways: first, this mineral has been reported in it, and second, the Taph Kelar site is also located in the same region. As mentioned, in the geological map of Marzanabad sheet, the existence of nepheline mineral is mentioned.
Conclusion
The results of this study, as well as studies conducted elsewhere; show that each region has a regional diversity that itself indicates the local production of Kura-Araxes pottery. If that Kura-Araxes pottery was produced in one or more workshops in the motherland of the culture and then shipped to other areas, these potteries should not be so different and heterogeneous.
Nevertheless, two points should be considered: First, the studied site (Tapeh Kelar) may not be the oldest Kura-Araxes site in Alborz. In addition, ripple in the stream theory must be considered. The time difference between the region of origin of culture and distant regions has lasted for more than two hundred years.
In this theory, the spread of Kura-Araxes culture has been gradual and in several waves and stages, so it is possible that this expansion, even if it is due to migration from the Caucasus, is different from the Caucasus region in terms of mineralogical structure. This study shows that long-distance and direct exchange in the spread of Kura-Araxes culture to the Kelardasht area is not approved.
For better results, it is necessary to obtain more information, especially in archaeological site that transition from the Late Chalcolithic period to the early Bronze Age is uninterrupted, and also genetic studies on human remains of such sites to genetic changes in the inhabitants of the areas in the transition from the Late Chalcolithic Period to the Early Bronze Age Evaluated.
Soraya Afshari, Lily Niakan, Behrouz Omrani,
year 9, Issue 32 (8-2025)
year 9, Issue 32 (8-2025)
Abstract
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.
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.
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