Abstract
Northwestern Iran and the South Caucasus have relatively favorable environmental conditions for the formation of ancient settlements. These include the Urmia Lake basin and the Aras shores in northwestern Iran, and the Kura River, the Mil-Moghan (mountainous areas) in the South Caucasus region. The archaeological evidences and recent researches in two geographical areas illustrate the cultural shares and similarities of the period. The main purpose of this article is to introduce the areas and pottery traditions and to identify the sequence of chronology in the areas of study. The following questions will be raised in order to achieve cultural interactions in the geographical area studied in the Chalcolithic Period: How is the condition of chronology sequence in the two cultural domains? The main hypothesis in this regard is the existence of approximately the same chronology (the beginning and the end of the Chalcolithicperiod) in the two geographical locations. How do the layers of settlement and the sequences of residence from the Neolithic to the Chalcolithic Periodin ancient sites indicate the theme of cultural continuity and transition? The present article is written by descriptive-analytical method. As a final result, it can be pointed to the similarities and differences of the archaeological data, including thepottery features, architectural structures, burials, etc. By studying the areas such as Dalma Tepe, Jolfa’s Kul Tepe, Khoy’s Davagöz, etc. in northwest of Iran and Leila Tepe, Galayeri, Puylu Tepe, Boyuk Kəsik, Soyuq Bulagh, Brikil Dibi, Kawtskhevy, Tekhvot have been obtained in the South Caucasus region and chronologically covers the millennium from 5000 BC to 3700/3600 BC. 
Keywords: Chalcolithic, Northwestern Iran, South Caucasus, Cultural Interactions, Chronology.

Introduction
The northwest of Iran and the Caucasus have long been a prominent site for archaeological studies due to their proximity to important cultural sites such as Anatolia, Zagros, Mesopotamia and Central Asia. Most of the ancient sites both in the Caucasus region and in the northwestern Iran, which were inhabited by the Chalcolithic period, were also inhabited during the Neolithic period, suggesting that the human and animal habitat conditions and the environmental conditions are favorable. The following questions will be raised in order to achieve the cultural interactions in the geographical area under study in the Chalcolithic Period: 1. What is the status of the chronologysequence in the two cultural areas? The main hypothesis in this regard is the existence of a same chronology (beginning and end of the Chalcolithic Period) at two geographical points. 2. How do the layers of settlement and settlement sequences from the Neolithic to the Chalcolithic Periodsindicate ancient sites, cultural status, and the cultural continuity and transition themes? Most of the ancient sites both in the Caucasus region and in the northwestern Iran, which were inhabited by the Copper-Stone period, were also inhabited during the Neolithic period, indicating the existence of afavorablehabitat and environmental conditions for both human and animal. Although there are also single-period enclosures among them.

Discussion
In recent years, one of the most significant issues in introducing and studying the Chalcolithic culture of northwestern Iran havebeen the ambiguity and darkness in the timing chronology of the Chalcolithic Period of this region. Because, this period was introduced after the late Neolithic period, was identified in areas such as Haji Firouz, Hassanlu, Yaniq Tepe, etc., with a break of almost a thousand years. Dr Abedi’s recent years’ excavations atJolfa’s Kul Tepe and Khoy’sDəvə Göz have eliminated the gap in the timing of the Chalcolithic Period of northwestern Iran (Azarbaijan). The archaeological studies are divided in twostages; and its early stage dates back to the 19th century and is known as the Eneolit cultural period. The archaeologists in the North Caucasus geographical area of have identified two culturaltypes of Kura-Arax and Maikop in the Chalcolithic Period, hence, the two Kura and Araxrivers in the Caucasus Basin are named as the Mesopotamia of Caucasus.
One of the most important cultural data of the Chalcolithic Period is the rectangular architectural structures which are made of white raw clay. Inside the structure, large crumbs, food storage wells and numerous stoves, along with the data such as mortar, and grindstone, and burned remnants of grains such as barley, wheat and lentils have been obtained. The burial variety ofthe Chalcolithic Period is more diverse than the Neolithic period. The most repeated type of burial in the Chalcolithic Period is the pits burial, but more recently therehave also been found two other burial types such as burial in earthenware, and kurganburial.

Conclusion
One of the most important issues of Chalcolithic culture in the South Caucasus is anunbroken continuation of the Chalcolithic Period after the Neolithic period. This continuation can be seen in Mentesh Tepe, Aratashen, Khatun Ark- Aknashen, and theChalcolithic Period begins unbroken after the Neolithic periodin these areas. But after the Neolithic period, the Old Bronze Age beginsinNakhchivan’s Kul Tepe. Scientists consider the climate change as the main cause of cultural disruption. In the southern Caucasus, the earlyChalcolithic phasehas been dated from 4800/5000 to 4600 BC, and themiddle andthe lateChalcolithic phases from 4600 to 3200 BC, and some new areas, such as Nakhchivan Tepe, Uchan Aghil, Uzun Oba, is derived from the earlyChalcolithic Period that are closely related to Dalma culture.

Abstract
Khānqah-E Gilvan cemetery is located on the western skirt of the MT. Talesh approximately 60 km southeast Khalkhal. The cemetery lies between the villages of Gilvan and Khānqah, and is part of the administrative district of Khalkhal in Ardabil province.The cemetery was discovered in 2006 during the road construction project in village of Khānqah. It has been in use from Middle Bronze Age to Iron Age I, II and Parthian Period after a centuries of gap; it is not still clear whether the cemetery was used during the Late Bronze Age or not, but the funerary practices in the Iron Age I, II were continued. Pottery similarities with ceramics from the Middle Bronze Age allows us to suggest that the initial using phase of the cemetery can be attributed back to the last quarter of the 3rd millennium BC(Zabanband et al., 2021: forthcoming) In this research, our focus is mainly on the graves related to initial phase of cemetery. During the Middle Bronze Age of Khānqah-e Gilvan, a variety of funerary practices along with types of tombs such as kurgan, pit grave, etc. unknown in other Iranian northwestern sites such as Geoy Tepe, Dinkhah Tepe, can be seen. The funerary practices of the tombs discovered in the cemetery are more or less homogeneous. It is probable to reconstruct funerary behavior of these populations.The diameter of the 7 kurgans excavated at the Gilavan burial site varies roughly 2 to 5 m. circle stone alignment is a common feature these burials, that is carefully laid out, heaps of stone (pebble/slab…)covered the pit burials. In addition to a detailed description of the graves, we will also try to point out some of the hierarchical features of the cemetery according to structure and grave association of the tombs,
Keywords: Khānqah-E Gilvan Cemetery, Kurgan, Structure, Social Position, Grave Association. 

Introduction
By the Middle Bronze Age, there were two different painted pottery traditions in Urmia lake basin. The first tradition was black painted red ware with (monochrome) and black& red painted on white or polychrome pottery, as been described as “Urmia Ware” (Pl. 1). The chronology of this pottery tradition has primarily been based on the evidence from level VIB at Haftavan Tepe. This type of pottery was firstly found levels C&D at Geoy Tepe. Four stone-built/cist graves associated with Geoy Tepe settlement of this period have recognized (Brown 1951: 100-107) It suggests that perhaps it might be more accurate to assign these tombs to late VIB. Tomb B which has assigned to period D by Dyson, contains only late VIB pottery which indicates that all tombs are contemporary, and belong to Geoy C. This conclusion is supported by the structure of the tombs; tombs A, B are very similar (Edwards 1986: 60-61, Dyson 1968: 16-17). three stone-built tombs, together with a child burial and three simple inhumations, are the only excavated burial remains of the Dinkha IVC and D levels yet On the basis of C 14 dates (building level) and typological parallels, the tomb B10a B27 can be placed in the 17th to 16th century B.C. Both the Habur Ware assemblage and the metal objects in tomb described here demonstrate Dinkha’s ties to the west in the Old Assyrian and Babylonian periods (Robinson 1991; 1994)
In the last decade, archaeological excavations in Khānqah cemetery provide more knowledge on region’s MBA and identify a variety of funerary practices and grave types during the Middle Bronze Age and Iron Age I, II of northwestern Iran. According to artefacts related to graves, and the structure of graves, these two-mortuary treatment to what extent can reflect status distinctions among people buried in this cemetery? 

The Khānqah-e Gilvan Cemetery
Khānqah cemetery (48̊ 49ʹ 46ʺ E and 37 17ʹ 39ʺN; pl. 2) is located on the west of the Khānqah village and 60 km south east of the Khalkhal town. From a geographical perspective, Khalkhal is a mountainous region which is surrounded by the Talesh, Bozquş and Qarāvol dagh from the east, west, and south respectively. Steep terrain of these mountaines region, especially in summer, supply livestock forage production.
The graves in this cemetery are categorized in two groups; a) Kurgans with a Funerary Pit: The burial in these kurgans was funerary pit in shape as the dead person had buried after digging a pit. The dimension of funerary pit was depended on how the corpse is located in the grave as well as the space needed to put the burial goods. After the top of the graves were sealed, then, it filled with a 77-431cm layer of stony soil prior to the surrounding circular stone alignment precinct were built. The height of these kurgans were approximately 61-212 cm. Over time, the mound of kurgans has lost its height and the scatter of stone mounds has formed locus No.4.; surrounding circular stone alignment precinct of graves were identified inside this location and its size is varying from 2 to 4 m in diameter. The existence of sherds, complete containers and animal bones whitin the soil on the graves showes that it mighte be  some sacrifices had been distributed among the participants who attended in the burying. 29, 30, 32, 37, 38, 39 and 41 are placed in this group.
b) Pit graves: On these grave types, there is a pit grave covered with mass of rubble. It seems that this embankment was a signal clarifying the location of grave during the past. 14, 24 and 40 are classified in this group.   

Discussion
According to formal parallels with ceramic assemblages of the Early kurgans and Middle Bronze Age cultures, the burial site of Khānqah can be dated from the 3rd quarter of the 3rd millennium B.C. 
A Hiatus in the Late Bronze Age- to the 1st half of the 1st millennium B.C. Among excavated burials the wealth displayed by 30 and 32 kurgans reveal high social achieved status of their owners. This hierarchy also emphasized by extra efforts in the tomb construction.  

Conclusion
According to artefacts related to graves, the tradition of placing pottery vessels along with deceased was a common practice of cemetery, even if there was no skeleton. A greater quantity and higher quality of burial goods found in 14, 30 and 32 tombs show high status individuals were buried with vast amounts of funerary objects. The wealth displayed by these graves reveals high social achieved status of their owners. This hierarchy also emphasized by extra efforts in the tomb construction (30,32) and wealth (14) (Brown 1971: 29). ). Moreover, there were some forms of funerary behaviors in 30 grave; including animal and secondary burials, presumably both of them are related to status or wealth; another explanation may be this, due to the lack of settlement site adjacent to cemetery, it is possible to propose that the mobile groups buried their dead somewhere else in the vicinity of site and in return carried them which could indicate the significance of cemetery in this relatively long period. Brown (1981) points out that the buried people with a higher social status, more likely to be manipulated after death, and those with lower status receive the least manipulate. It is worth mentioning that in 30 multiple grave, the primary burial is in its anatomical position and is not displaced to contain secondary burial which could indicates individual social prestige. There are few differences in wealth and effort in other graves which represent little positional stratification among them. The presence of copper pins in the graves buried people more likely to be the standard of the period. There is no peculiar pattern in distribution of other metal artefacts depending on the location of the pins, it seems that they were a means of keeping clothes (Massa et al. 2017) found around the skull and shoulder

Abstract
Archaeological excavations in Yelsuie Germi Castle, very rich findings and valuable documents such as pottery, architecture and other handicrafts were identified and excavated from under a mound of soil that can play an important role in the detailed analysis of this area. One of these landmarks is an unknown structure with complex architecture and building elements located on the hills of the castle near the Sambur Chay River. This building has sections and spaces of four corners that the presence of water conduction paths into the building on the walls and water outlet channels in the floor, has increased the importance of the building and has made it more difficult to identify and evaluate the main function of the building. In this regard, the present research is descriptive-analytical and based on field studies and review of library documents, while identifying and introducing the mentioned building, seeks to find a logical answer to the following questions: What is the usage of the unknown building of Yelsuie Castle and how did it work? What era does the unknown building of Yelsuie Castle belong to? Studies were carried out show that the unknown building is due to the presence of ponds and inlets and outlets water conduction paths was in association with water usage, which is probably used for the preparation and processing of clay, and accordingly by the authors, The name of the building is called “clay processing building”. On the other hand, the study of pottery obtained from different spaces of this building and its comparison with other areas, confirms that this building belongs to the Islamic Middle Ages and the Seljuk period.
Keywords: Germi, Yelsuie Castle, Clay Processing Building, Pottery, Medieval Islam.

Introduction
The current research method is based on a descriptive-analytical and historical approach and its data collection is in the form of library and field studies and archaeological excavations in the area. According to this, at first, the whole building and its various spaces have been drawn, designed and three-dimensional with the help of various software; Also, in order to achieve the most accurate information and general analysis of the building, the obtained pottery from inside the brick building has been compared and matched with the pottery works of other areas of the Islamic era. The ancient place of Yelsuie Castle in the Ingot section of Germi city consists of a small castle on top of a high natural hill and a residential area located in its southwestern part. Yelsuie Castle is located in the watercourse of Sambur Chay River. Easy access to river water resources as well as the precipice situation in the southern and eastern part of the hill on which the castle was built, is one of the most important strategic features that has been influential in choosing this place to form such an area. In general, this area can be considered as one of the most key Islamic area in northwestern Iran. The brick building is located on the eastern side of the castle and on the watercourse of the Sambur Chay River. In this regard, in order to identify this brick building, a workshop called Workshop No. 4 was created in this part of the area by the excavation team. While continuing the excavation process, a brick building with special architecture and unknown usage was discovered. The mentioned building has an almost rectangular plan that includes several spaces inside. The main materials used in the structure of this building are bricks with gypsum and lime mortar, and in some parts, especially in the outer parts of the building, river rubble has been used. The walls of the brick building are completely smooth and flat and are made with an average width of 50 cm and the height of all of them is the same and is about 70 cm.

Discussion
In general, according to the general structure of the brick building, the most reasonable usage for this architecture is being a pottery workshop and processing and preparing clay in it. One of the most important steps before making pottery is to find the right clay or grinding clay, without clods and other materials. Therefore, for this purpose, it is necessary for the pottery clay to be well shaped, sifted, cleaned and prepared. It seems that small ponds that are embedded lengthwise in different parts of the brick building; Along with water inlet and outlet channels, they are made for just such a use.  In fact, in this building, water is directed into these ponds and collected in them through small canals that are embedded on the walls. After filling them, in the next stage, the clay, which was suitable for pottery, was mixed with water inside these basins and became a slurry. While mixing the clay with water, the water flow is redirected into these ponds again, and during this operation, the excess material inside of the soil as well as other additional materials are poured out of the ponds along with the excess water into large side spaces. And was led out  of the building by floor channels. Also, the grains of sand that may have been inside the clay, due to the weight of the bottom of the ponds and the parts that are embedded in the bottom of the floor, were deposited. After doing this, the water flow was cut off and the produced clay was deposited in the ponds for a few days and remained there until it was soft and smooth and so-called settled. After a few days, the prepared clay was collected and transferred to pottery workshops and then to pottery kilns. 

Conclusion
In fact, it should be added that the existence of various pottery in various forms, styles and techniques in Yelsuie Castle indicates the possible presence of pottery kilns in this site, which also confirms the fact that the brick building is a workshop for producing high quality clay. On the surface of Yelsuie Castle, there are limited traces of pottery balls that indicate the presence of pottery kilns in the area, so that with the help of these balls, the temperature of the kilns was regulated. In this article, 3 maps and 13 images including the castle itself, its geographical location, as well as the brick building and its various parts are given. Also, in two tables, the types of obtained pottery from the brick building are displayed, and in another table, similar samples of obtained pottery from other sites of the Islamic period in other parts of Iran have been compared and matched. According to potteries and other artifacts, the date and time of construction of this building should be belong to the Middle Ages of Islam and the Seljuk era.