Abstract
The Kazeron County is located in the West of Fars Province and 732 M above sea level. From identified sites in survey of Kazeron plane (that mainly are sites of Neolithic period to late of Bronze Age) in total of 141 pieces of stone tools were gathered from 13 sites. Based on research on stone tools, sites as SK023 are show extraction and use / maintenance / repair. In these sites, the existence of core stone indicates of the construction of tools, and also existence a lot of the stone tools are indicates of settlement long-term in these sites. The core stones in all sites are exclusively chipped stone and mostly from kind of Chert stone of gray – green. It seems, produce of tools from other types of Chert stones such as red Chert, Chert of brown stripes, cream Chert, and… have been made in another place. The blades and their flakes in some sites of Kazeron plane (especially sites of SK022 and SK023) represents are the use of these tools for reaping of the plants. The raw material used to make stone tools (that often made of local stone) today it is easily accessible in the Kazeron mountains. These tools, to form of a combination and with natural resins such as bitumen have been placed inside the bone handle or in newer periods inside the metal handle, and similar to sickle have been used to cut plants. From of the main goals of the present research, study of technology diversity in stone tools sites of prehistory in Kazeron plane is for regional and comparative studies and for gain of general knowledge the prehistory of Kazeron plane.
Keywords: Stone Tool, Typology, Prehistory, Kazeron Plane.

Introduction
The Kazeron County is located in the west of Fars Province and 732 M above sea level. This County from the north to Mamasani and Behbahan, from east and northeast to Shiraz, from southwest and west to part of Borazjan city and Bosher, and from southeast to Firozabad is limited. This County in terms of geographic is located in mountainous area and with surrounded by high mountains. The mountains of Kazeron area is stretched from the northwest to the southeast (Mozafariyan, 1994: 25). The Mountains of Kazeron consists of two ranges and Kazeron plane is between these two mountain ranges. The Kazeron County has a warm climate. The temperature of this county is max.49 degrees above zero and at least 6 degrees below zero. The average rainfall in Kazeron County in years of low rainfall is less than 500 mm and in the rainy years approximately 700 mm (Behrozi, 1968: 8). The Kazeron County has abundant water resources. Abundant springs and a lot of water has a created several rivers. The major rivers of this county are include of Jareh, Shapor, and also freshwater Lake of Parishan (Hatami, 2006: 12). So, Kazeron plane with a lot of water resources and suitable climate had a good environment for development of human societies in the long term. In this research, stone tools related to Neolithic period to Iron Age (that collected from survey of archeology Kazeron plane) have done typology and classification. So, from of the main goals of the present research, study of technology diversity in stone tools sites of prehistory in Kazeron plane is for regional and comparative studies and for gain of general knowledge the prehistory of Kazeron plane.

Research findings
From identified sites in survey of Kazeron plane (that mainly are sites of Neolithic period to late of Bronze Age) in total of 141 pieces of stone tools were gathered from 13 sites. Tepe Qalat 2 (SK002) is located 1 km northeast of Baladeh city. From this site was obtained only 2 chips. A piece is Retouch and another Burin. The Galeh Narenji (SK006) is located in near of the village of Galeh Narenji and 1.5 km east of Pershian Lake. From this site 6 pieces stone tools have been collected. Tal Siah 1 (SK013) another from sites, that is located in around Pershian Lake. From this site 3 pieces stone tools have been collected. Another from sites is Tal Siah 2 (SK014), that from this site 7 pieces stone tools have been collected. Gabrestan Karai (SK015) is located 500 meters southeast of Karai village, and from this site 11 pieces stone tools have been collected. Another from sites this study is Dreh Tampoi (SK016) that from this site 12 pieces stone tools have been collected. Tal Zirakan is located 1 km east of Kaskan village and in south of the Kazeron city. From this site 17 pieces stone tools have been collected. Another from sites this study is Tal Rashton (SK020) that from this site 8 pieces stone tools have been collected. Tal Panj Mahal (SK022) is located 700 m west of Shapro River, that from this site 25 pieces stone tools have been collected. Tal Dehdaran (SK023) is located on the northern margin of Kazeron plain, that from this site 26 pieces stone tools have been collected.

Conclusion
Usually, estimate the ratio of blank flake to core stones can help us to guess that production of stone tools has done elsewhere. On the other hand, the blades and their flakes in some sites of Kazeron plane (especially sites of SK022 and SK023) represents are the use of these tools for reaping of the plants. In general, in spite of a lot of variety in the collection of stone tools in sites of Kazeron plane (that shows diverse and advanced industries), in core stones can’t be seen complexity and advanced technology. Ultimately should be noted, based on survey results and pottery samples, these stone tools are belonging to the 7th millennium B.C. to the end of the second millennium B.C..

Abstract
The 4th millennium BC is one of the most important periods of the history. During the 4th millennium BC, the first urban societies were established in southern Mesopotamia and south-western Iran. Even southern Mesopotamia and southwestern Iran are among central regions of urbanization, but adjacent areas, particularly Central Zagros in western Iran, have played the main role in this process. Godin Tepe is one of the most important archaeological sites during the 4th millennium BC in western Iran which has main role in the urbanization studies. The excavation of this site and Seh Gabi in Kangavar shaped the cultural sequence of Central Zagros until now.  Even this site has close cultural interaction with northern region such as Urmia basin during 5th millennium BC, but later in the 4th millennium BC, this interaction has changed from north to east and to the Central Plateau. The most significant characteristics of the interactions between Godin and the Central Plateau, is some fair painted buff pottery (Godin VI painted pottery) which is reported from the late chalcolithic period sites of the Central plateau (Sialk III6-7b). Regarding the existence  of this painted pottery throughout chalcolithic period ( not only late chalcolithic) in the Central plateau and the absence of this ware in preceding  period(Godin VII) in Godin sequence, it should be noted that the Godin VI painted buff ware is not local in Kangavar area. It has a foreign provenance that should be looked after in Central Plateau. Our methodology in this paper is comparison of this fine painted buff pottery from Godin VI period with the previous coarse ware of Godin VII, and with same ware of late chalcolithic period sites of the Central plateau.  We do not believe in immigration hypothesis about this intrusive ware in Godin sequence. Obviously future studies will be needed.
Keywords: Prehistory of Central Zagros, Late Chalcolithic, Godin VI Pottery, Sialk III Pottery.

Introduction
The 4th millennium BC is one of the most important periods of the history? During the 4th millennium BC, the first urban societies were established in southern Mesopotamia and south-western Iran. Even southern Mesopotamia and southwestern Iran are among central regions of urbanization, but adjacent areas, particularly Central Zagros in western Iran, have played the main role in this process. Godin Tepe is one of the most important archaeological sites during the 4th millennium BC in western Iran which has main role in the urbanization studies. The excavation of this site and Seh Gabi in Kangavar shaped the cultural sequence of Central Zagros until now. The focus of our studies is on Godin VII-VI strata which overlapped somewhat with Uruk period in Mesopotamia.  About this period and particularly those well-known Godin V rounded building, many papers were published. Our goal is to study the buff painted pottery of period VI (VI1).  Comparing to the previous period (Godin VII) characterized by coarse and plain chaff tempered pottery, the fine wheel made pottery of period VI is an intrusive one. Noted that the same painted buff pottery was reported from the late chalcolithic period sites of Central plateau, Sialk III6-7b and Ghabristan IV (Fazeli et al 2013, Majidzadeh 1978, 1981). In contrast to Central Zagros where this buff painted pottery was introduced in period VI abruptly, in Central Plateau this pained ware was reported from the previous period (Sialk II-III). Also the Central plateau wares have more divers shape and motif comparing to the Central Zagros so our evidence showing that the original provenance of this painted pottery is in the Central plateau and not in Central Zagros. Noted that east of central Zagros and Central Plateau of Iran during the fourth millennium BC had a great interaction with each other that as a result such painted pottery was developed from the Central plateau to Kangavar.  
Question, Research Method: As mentioned, the focus of this paper is on the fourth millennium BC and on the chalcolithic period strata of Tepe Godin and particularly Godin VI painted buff pottery (Levine and Young 1987, Young 2004, Rothman and Badler 2011, Moghaddam and Javanmardzadeh 2012, Wiess and Young 1975, Young 1969, Young and Levine 1974, Badler 1995, Mattews 2006). Godin tepe reached its maximum level of social complexity in the fourth millennium BC and has great interaction with neighboring areas and particularly the Central plateau of Iran.
 This painted buff pottery is reported from the late chalcolithic period sites of the Central plateau of Iran. Our methodology in this paper is comparison of this fine painted buff pottery from Godin VI period with the previous coarse ware of Godin VII,and with same ware of late chalcolithic period sites of the Central plateau. Introducing this painted pottery in the Godin sequence abruptly, the occurrence of this ware not only in late chalcolithic period sites of Central Plateau but throughout the chalcolithic period and diverse shape and decoration of this ware in chalcolithic period sites of Central Plateau, demonstrated that this ware is related to the  Central Plateau. It was considered as an intrusive ware in the eastern Central Zagros area such as Godin Tepe. Godin Tepe has solid cultural interaction with neighboring areas during the prehistory. During the middle chalcolithic period, this interaction was toward the north and particularly the lake Urmia basin. But in 4th Millennium BC this interaction was changed from north to east and to the Central Plateau.(Roustaie and Azadi 2017). This painted buff pottery is considered as a main evidence of this interaction. Future studies will tell us more about the eastern Central Zagros- Central Plateau interaction.

Conclusion
Introducing this painted pottery in the Godin sequence abruptly, the occurrence of this ware not only in late chalcolithic period sites of Central Plateau but throughout the chalcolithic period and diverse shape and decoration of this ware in chalcolithic period sites of Central Plateau, demonstrated that this ware is related to the  Central Plateau. It was considered as an intrusive ware in the eastern Central Zagros area such as Godin Tepe. The main question regarding this fine painted pottery is about the sudden emergence of this pottery in the sequence of Godin and how it developed from the central Plateau and reached the eastern Central Zagros in the west of Iran?    
 We do not believe in immigration hypothesis about this intrusive ware in Godin sequence as those theory explained for Godin VII Plume ware at Central plateau. As noted at fourth millennium BC, Godin tepe at west of Iran reached its maximum level of social complexity and is one of the most important trade centers which has great contact and interaction with neighboring areas and particularly the Central plateau of Iran. This trend was started at Godin VII period and those plume wares of Zagros were reported from the Central plateau of Iran. noted that before Godin VII period and during the fifth and sixth millennium BC, west of Iran had great interactions and contact with the northwest of Iran. With the beginning of Godin VII period and specially Godin VI period, the direction of communication was changed from north to the east and the areas like the Central plateau become the main commercial partner of the western Iran at fourth millennium BC. Consequently, this fine painted ceramic was evidence of this interactions and communications.  Obviously future studies and excavations will tell more about this fine painted ware in western Iran.

Abstract
The investigation and study of the plains and valleys between the mountains of South Zagros in Iran from a geographical and cultural point of view leads to a deeper understanding of how the archaeological cultures of those regions were formed and expanded; The southern parts of Zagros have their own geographical and cultural areas, while the northern regions include Abadeh, Eghlid, and Semirom; The Ghabr-e Keykha river basins and Semirom region are significant for the study of cultural interactions and areas of expansion of the archaeological cultures of Fars province because of their location at the intersection of the archaeological cultures of South Zagros. Therefore, we started the studies to investigate the prehistoric settlements and demographic fluctuations of the Ghabr-e Keykha river basin and to identify the oldest habitation in the central part of Semirom. The current research was based on a season of the archaeological survey with a habitat analysis approach in the central part of Semirom city (Figure: 1); After preparing the required maps, we surveyed the target area, and random sampling was done. Due to the low environmental capabilities, the sites were not in the dimensions and size of settlements in the central parts of Fars. It has been considered from sources of water and quality soil and living in the closest distance to rivers and reliable sources of water; It is interesting to note that, unlike in the central parts of Fars, there is no evidence of a sharp decrease in the number of enclosures and a change in the lifestyle from a sedentary farmer to a nomadism, and we are witnessing the size of Sites and the increase in population during the Banesh period.
Keywords: Archaeological Survey, Prehistory, Semirom, North Fars, Southern Zagros.

Introduction
Semirom county has an area of about 5224 square kilometers and an average height of 2400 meters above sea level, and its location is in the south of Isfahan province on the slopes of the Zagros highlands. This county is in the middle of South Zagros and the eastern slope of Dena highlands. What turned Semirom County into a distinctive locale in the prehistoric and later periods was its obvious location at the interface of the three major Iranian cultural zones, namely Fars to the south, Bakhtiari to the west, and the central plateau to the north. Thus, the region represents a significant focal point for exploring the cultural interactions of the cited zones. What is evident with regard to the regional archaeological investigations is the lack of systematic surveys, local chronology, excavated sites, and knowledge of the cultural evolutions in prehistoric times.  From another geographical point of view, Semirom lay in the southernmost part of Isfahan, that is the lowermost focal point of the central plateau cultures, wherein the penetration of the Bakun culture cannot be ruled out.
The basic question concerns the circumstances of settlements and population fluctuations at the prehistoric sites in Central District of Semirom, focusing on the factors of settlement size, water resources and arable lands, in particular during the Bronze Age, to determine whether there are comparisons with the central parts of Fars? Another question is: Given the location of the Semirom region at the convergence point of the cultures of the central Fars, are there any evidences of cultural interactions with the latter cultures? Furthermore, since at the current status of our understanding, grounded in the excavations of Tall-e Mash Karim (Sardari and Taheri 2015, 266; Taheri 2015, 233), and Gol-Afshan (Taheri 2009, 345; Taheri, 2020), the region’s earliest occupations date to the Bakun period, we were looking for information about potential earlier Paleolithic and Neolithic settlements. Judging by previous surface surveys, albeit their partial coverage of the region, and excavations, I assumed that the region was under the influence of Fars archaeological cultures, and indications for influences from the Bakhtiari region and the central Iranian plateau are absent. Thus, testing this hypothesis called for carrying out more careful intensive surveys in parts of Semirom.

Discussion
From the Middle Paleolithic period, we identified three open sites, two of which were created on the terraces dominating the rivers, and one site with a long distance from the permanent water resources at the exit of one of the northern valleys of the region is surveyed. Earlier, the settlement in this area was dated to the Bakun period. But it dates back to the Middle Paleolithic period, according to new surveys and evidence of human activities identified from the Paleolithic period. From the Neolithic period, we identified only one site related to the Shams Abad period, but with the beginning of the Bakun period(Chalcolithic), like Fars, we see an increase in settlements from one Neolithic site to seven sites in the Bakun period and four sites in the Lapui period. Various causes can be involved in this increase in population. First, with the warming of the region after the late Holocene, in a way that was not much different from the current climate of the area (Sadat Hosseini et al., 2015), better conditions were provided for the expansion of settlements and human habitation. We can see its appearance at the beginning of the Shams Abad period and the identification of one site. On the other hand, with the revelation of the Bakun culture in the Kur river basin, which had progressed in the economic and social contexts, more possibilities and abilities were obtained to exploit the environment, such as the expansion of irrigation canals began in the Shams Abad era and reached its peak during this period. They used more diverse animals in their food chain through hunting and animal husbandry. Although, like Fars, we see an increase of sites in the Bakun and Lapui periods. it seems that the Semirom region should be introduced as one of the peripheral regions of Fars and influenced by the archaeological cultures of this region with its cultural characteristics, in terms of dimensions and number of sites, livelihood patterns, and pottery motifs. That needs to be studied separately and consider its specific climatic and geographical conditions in the framework of the archaeological cultures of Fars.
 In the Banesh period, the number of sites is reduced to three. It seems that this region, unlike Fars, in this period, not only has not a noticeable decrease in population compared to the Lapui period, but we can see the stability of the population and the size of the sites. Also, observing the beveled rim pottery (Figure: 7) in this region is an important issue that doubles the need for a more detailed study of the entire county in this period. 

Conclusion
The results indicated the influence of environmental factors in the selection of sites, and factors such as distance and proximity to reliable water resources, fertile lands with easier access to water, and a suitable slope were the main factors for choosing a place of habitation. In all prehistoric times, most of the sites were very close to the main branches of the rivers (Map: 3); Most of them have settled in the middle of the plain, where the ground is less steep and has better soil. The reason that we identified no areas in the foothills of the mountains and at a greater distance from the rivers is because of the factors such as more difficult access to water resources due to the greater depth of the valleys in the initial parts, the lack of good soil, and the impossibility of exploiting water resources through canalization. There may be other factors involved which require more research to identify. In this lifestyle, the location should be chosen more carefully because the stay duration was longer, and the soil and water resources use was continuous and planned. In the end, based on the model that most archaeologists use to estimate the population and their interpretations, i.e., determining 100 to 150 people for each hectare in prehistoric periods (Alizadeh, 1392: 159), we predicted a population of over 200 people for the central part of Semirom in the Neolithic period, considering that we identified only one site with an area of 15,000 square meters. After that, during the Bakun period, the total area of seven sites was 27,500 square meters, and the estimated population was about 550 people. In the Lapui period, the total area of all the sites was 18,000 square meters, with an estimated population of about 350 people. In the Banesh period, the total area of all the sites was 50,000 square meters, which reached around 1,000 people with the increase in population. This analysis clearly shows the beginning of the increase of the sites with the beginning of the Shams Abad period. It continues to increase in the Bakun period. In the Lapui period, we are facing a 40% decrease in the number of sites. Again, in the Banesh period, the size of the sites increased a lot, and we estimated the largest population for this period.