424 Documenta Praehistorica XLVI (2019) Probable evidence of a Middle Palaeolithic site in the northern parts of the Susiana Plain, Khuzestan, Iran Saeid Bahramiyan 1,2 1 Department of Archaeology, Faculty of Literature and Humanity, University of Tehran, Tehran, IR 2 Laboratoire Archéorient, Maison de l'Orient et de la Méditerranée, Jean Pouilloux, L'université Lumière Lyon 2, Lyon, FR Bahramiyan.Saeid@gmail.com ABSTRACT – There is a considerable body of studies regarding the activities of the Pleistocene human population in the Zagros and Alborz regions of Iran, as well as significant progress in the Palaeo- lithic studies in other regions, such as the foothills, plains and deserts’ margins. However, some of these peripheral regions and foothills are still neglected, and the information about the Palaeolithic period in these areas is limited. Khuzestan province, especially its northern regions, is one of these unstudied regions, yet the limited information about this region seems very interesting. Khervali, located on the western foothills of the Zagros Mountains and on the northern heights of Susa, nearby the western bank of the Karkheh River, is one of the few Palaeolithic sites identified in recent years. The site was identified in 2012 and was systemically surveyed. Due to the extension of the site and the distribution of the artefacts, sampling all the site was not feasible, therefore, four sections of the site were chosen for taking the samples and a total of 330 stone artefacts were collected. The results of the techno-typology analyses, as well as the frequency of the flakes, the Levallois samples and dif- ferent types of scrapers, revealed that the artefacts date to the middle Palaeolithic period, with consi- derable access to the local raw materials. IZVLE∞EK – πtevilne ∏tudije se ukvarjajo z vpra∏anjem aktivnosti ljudi v ≠asu paleolitika v gorovju Zagros in regiji Alborz v Iranu, velik pa je tudi napredek pri paleolitskih ∏tudijah na drugih obmo≠- jih kot so predgorja, ravnine in obronki pu∏≠av. Ne glede na to ∏e vedno ostajajo obrobna obmo≠ja in predgorja, ki so manj raziskana in imamo o njih le malo podatkov iz ≠asa paleolitika. Tak∏no ob- mo≠je je tudi severni del Kuzestana, ≠eprav so ti podatki zelo zanimivi. Eno redkih prepoznanih pa- leolitskih najdi∏≠ je Kervali, ki se nahaja v zahodnem predgorju Zagrosa in na severnih vi∏avjih Suse. Najdi∏≠e je bilo odkrito in sistemati≠no raziskano leta 2012. Je zelo veliko in ima veliko povr∏inskih artefaktov, kar pomeni, da ni bilo mo≠ izvesti vzor≠enja na celotni povr∏ini, ampak smo le-to razde- lili na ∏tiri dele in pobrali 330 kamnitih artefaktov. Na podlagi rezultatov tehnolo∏ko-tipolo∏ke ana- lize, pogostnosti kamnitih odlomkov, vzorcev orodij, izdelanih z Levallois tehniko in razli≠nih pras- kal, smo lahko najdbe datirali v ≠as srednjega paleolitika in sklepamo, da so imeli takratni ljudje do- ber dostop do lokalnih surovin. KEY WORDS – Khervali; Middle Palaeolithic; north of Susiana Plain; conglomerate formation; acces- sibility; raw material KLJU∞NE BESEDE – Kervali; srednji paleolitik; severni del ravnine Susiana; formacija konglomerata; dostopnost; surovina Verjeten dokaz o srednje paleolitskem najdi[;u v severnem delu ravnine Susiana, Kuzestan, Iran DOI> 10.4312\dp.46.27 Probable evidence of a Middle Palaeolithic site in the northern parts of the Susiana Plain, Khuzestan, Iran 425 Introduction Despite one century of studies of the Palaeolithic pe- riod in Iran, there are still many regions which have remained less known compared to the Zagros and Alborz mountainous areas. Khuzestan province is one of these unknown areas, specially its northern and north-western regions, with the exception of the Pabdeh cave excavation (Girshman 1949; 1951; 1993.10). There have been several reports about the Palaeolithic finds in recent years (Dinarvand et al. 2012; Dinarvand, Mehranpour 2015; Ahmadzadeh Shouhani 2014; Sheykh no date; Alipour 2012; 2014; Alipour, Nadali Kahish 2014), although most of the archaeological research in southwestern Iran and Khuzestan province is focused on the more re- cent prehistoric and historical periods, and only few archaeological studies are dedicated to the Palaeoli- thic. As a result, our knowledge about the Palaeoli- thic period compared to the more recent periods of this region is incomplete, while Palaeolithic studies of areas such as Zagros and Albourz tend to be more advanced compared to those of Khuzestan province. An archaeological survey was conducted in 2012 by Loqman Ahmadzadeh Shouhani (Ahmadzadeh Shou- hani 2014), on the western bank of Karkheh River (the city of Susa) with the aim of identifying and re- gistering archaeological sites in the area. The survey produced 72 new sites that were identified and re- corded. One of the identified sites was a valley known as ‘Khervali’ with a considerable distribution of stone artefacts, which makes it the first and only known Palaeolithic site on the western side of Karkheh Ri- ver and also one of the few Palaeolithic sites of the northern Susiana plain (Fig. 1). Regarding the lack of information about the Palaeo- lithic period of this region and the location of this site between the western foothills of Zagros and the plains, this site can be a major source of information about the Palaeolithic period of this region. Palaeolithic research background in the Khu- zestan Province Despite Palaeolithic studies starting in Iran more than a century ago by De-Morgan in the north of the territory (Vahdati Nasab 2011) there is little infor- mation about the Palaeolithic of the Iranian Plateau, and until the past few decades Palaeolithic studies in Iran were focused on the Alborz and Zagros moun- tainous areas. The Iranian plateau has many geomor- phological variations, and the foothills, the margins of the plains and the deserts, in addition to the mountainous areas, have high value in terms of ar- chaeological remains and studies, as suggested by the results of recent Palaeolithic studies (Vahdati Nasab et al. 2009; 2010; 2013; Vahdati Nasab, Ha- shemi 2016; Darabi et al. 2012; Biglari et al. 2000; 2009; Alibaigi et al. 2010; Shidrang 2009; Conard et al. 2009; Heydari Guran, Ghasidian 2011; Hey- dari Guran et al. 2009; 2015; Bahramiyan, Ahmad- zadeh Shouhani 2016; Zeynivand 2017; Biglari 2004a; 2004b; Biglari, Shidrang 2016). Unfortunately, Palaeolithic stu- dies have not been the priority of archaeological research in Khuzestan province, and few studies have been conducted in this regard. This is despite the location of this region on the west of Zagros mountains and the accessibility of environmen- tal resources such as permanent rivers, plains, mountainous re- gions, hills and foothills, all of which can be considered as sig- nificant factors in attracting Ple- istocene human populations. Roman Girshman conducted the Early Palaeolithic studies in Khu- zestan in Pebdeh cave, located in the Lali region (northern Khu- zestan), and he discovered seve- Fig. 1. Map showing the geographic location of Khervali site in the northern Khuzestan Plain. Saeid Bahramiyan 426 ral simple stone artefacts (Girshman 1949; 1951; 1993.10.465, Fig. 1). The next major study was con- ducted by Henry T. Wright (1979) in the north-east- ern region of Khuzestan, in Gol and Iveh plains, as part of the rescue project of the archeological sites behind the Shahid Abbadpour (formerly Reza Shah) dam. As a result of his study a number of Palaeoli- thic and also more recent prehistoric and historical periods were discovered. In 2004, a survey in Izeh was conducted by Cyrus Barfi and a rock shelter near the Eshkaft-e Kulfarah was identified with the same name and a total of 27 stone artefacts from The upper Palaeolithic and Epi- palaeolithic were discovered (Barfi 2010). During the follow-up surveys conducted by Mozhgan Jayez in 2007 (Jayez 2007), the Izeh region was surveyed once again for Palaeolithic remains, and 54 sites in- cluding caves and rock shelters with stone artefacts dating back to the Epipalaeolithic and Early Neoli- thic were discovered, and their distribution patterns studied (Niknami et al. 2009; Niknami, Jayez 2008). Jayez conducted another archaeological survey in 2008 on the Pion plain, located in the northwest of the Izeh plain, in order to identify and register all of the archaeological sites, and as the result she identi- fied 19 sites from the upper Palaeolithic to Epipala- eolithic period (Jayez et al. 2012; 2013). The northern and north-western regions of Khuze- stan province (e.g., northern piedmonts of the cities of Susa and Dezful) have attracted some Palaeoli- thic researchers in recent years, which has resulted in the identification of many Palaeolithic sites and remains. In 2008, Mohammad Sheyk conducted the first survey with the aim of identifying and studying the Palaeolithic settlement patterns on the eastern banks of Karkheh River, and he discovered 5300 stone artefacts from different Palaeolithic periods (Sheykh, publication year is not available; Vahda- ti Nasab, pers. comm.), which revealed the signifi- cance of the region during this time. The results of the previous Palaeolithic studies in northern Khuze- stan (north of the Susiana plain) also show the im- portance of this less known region in this period. Another survey was conducted in 2010 by Yusef Di- narvand on the eastern banks of the Dez River, on the northern heights of Dezful, in the Shahyun re- gion, and two lower and middle Palaeolithic sites, with stone artefacts such as cores, flakes, denticulate and Levallois pieces being discovered (Dinarvand et al. 2012; Dinarvand, Mehranpour 2015). Despite the recent Palaeolithic surveys and excava- tions in Khuzestan plain, there are still many un- known and unstudied regions in the area that need to be examined, such as the western banks of the Karkheh River. In the intense study project of “The archaeological study of the western banks of Kar- kheh River” conducted by Loqhman Ahmadzadeh Shouhani in 2012, a number of artefacts and archa- eological sites from the Palaeolithic, Chalcolithic and other recent periods were discovered (Ahmadzadeh Shouhani 2014). Of all the 72 identified sites, only the site at the Khervali Valley was attributed to the Palaeolithic period, due to the considerable distribu- tion of stone artefacts. This valley is located to the north of the city of Susa and on the west of the Kar- kheh regulatory dam, which is the main subject of the present paper. Fig. 2. The geographical position of the Khervali site in the Northern Susiana Plain. Probable evidence of a Middle Palaeolithic site in the northern parts of the Susiana Plain, Khuzestan, Iran 427 Alireza Sardari Zarchi also conducted another archaeolo- gical survey in October 2012, in the cities of Masjed Solei- man and Andika located in north-eastern Khuzestan pro- vince. This survey was part of the project of the archaeo- logical map of Iran and re- sulted in discovering several Middle and Upper Palaeolithic and Epipalaeolithic sites (Sar- dari Zarchi 2013.68–86; 2014). Mehdi Alipour conduc- ted another survey in 2013, with the objective of identify- ing and studying the settle- ment patterns of the Palaeoli- thic period in northern Khu- zestan, Sardasht district, and on the north-eastern Dezful (Alipour 2012). He decided to conduct his survey in circular areas of 200m diameter and managed to dis- cover 1450 stone artefacts from 55 areas, and fur- ther studies showed the utilization of the Levallois technique in their production, dated back to the Mid- dle Palaeolithic. As mentioned above, the western bank of Karkheh River (in Susiana plain) is less known than the east- ern bank of the river, and the few archaeological studies which have been conducted on this area are mostly focused on the more recent prehistoric and historical periods (e.g., Mecquenem 1943.141, Fig. 106; Adams 1962; Wenke 1975–76.13–221), the only study with relevant finds to the Palaeolithic pe- riod was conducted by Ahmadzadeh Shouhani, which resulted in the identification of the Khervali site and its Palaeolithic artefacts. The geographical location of Khervali The Khervali site with the geographical coordinates of N: 32°25’49.5529”, E: 48°07’33.6804”, and the di- mensions of 2320x630m is located 130 to 160m a.s.l. The site is situated to the north of the city of Susa, on the way of the connecting road between Andimeshk to Deh Luran, after the Naderi Bridge and 950m from the western gate of the regulatory dam of Karkheh River (Fig. 2). The site is an open valley in terms of topographical characteristics and has a relatively flat surface with a slight north-west- ern – south-eastern slope that forms several hills which are known as Khervali hills based on the geo- logical maps of Iranian Oil Company (Iranian Oil Operating Companies DEZFUL 1967). Based on the geological evidence, the high elevation of the site has preserved it from the sedimentation processes of the Khuzestan plain and sedimentary deposits of the Holocene period. Besides, the site is formed on the Bakhtyari Conglomerate Formation (Fig. 3), covered in round pieces of sandstone and chert stones. A seasonal river originates from the northern heights of the valley and flows through the centre of the site and finally joins the Karkheh River. The construction of the asphalt road at the middle of the valley in order to access the Karkheh dam and also the construction of a military barracks in the southern parts, as well as the extensive excavation operations by the dam’s construction machinery, have done irreversible damage and destroyed the major sections of the site (Fig. 4). The survey methodology and the results The process of mapping and preparing a cross-sector plan of the site with mapping cameras was not pos- sible due to the size of the site as well as the previ- ously mentioned damage and destruction, with a lack of time also being an issue. Therefore, after an intensive and overall survey on the site and study- ing the concentration and distribution of the arte- facts, four different sections were chosen for further studies and sampling. The selected sections were higher than the dried bed of the river and they were consequently preserved from the natural sedimenta- Fig. 3. Geological map of the city of Susa; the yellow part is the Bakhtya- ri Conglomerate Formation (BK). Saeid Bahramiyan 428 tion processes or human construction on the site. A circle with a diameter of 20m was designated as the boundary of each section, their coordinates were registered via GPS devices and they were named Locus 1, 3, 4 and 5 1 1 . The sampling was done by four different people in order to avoid personal bias or preconception in choosing the artefacts. Finally, a total number of 330 stone artefacts, including cores, core fragments, blank debitages, tools and debris were collected from the four selected sections (lo- cus). Table 1 shows the number and the percentages of the collected artefacts. Palaeolithic artefacts As indicated in Table 1, among the 155 pieces of cores and core fragments, 37 pieces are the core, and 20 pieces are the core/chopper 2 2 , which are mainly made of rubble, and based on their frequen- cy are divided into the three groups of flake cores (53 pieces), blade cores (two pieces) and bladelet cores (two pieces) that have been reduced by unidi- rectional and irregular techniques (Figs. 7–8). The abundance of fragment cores (98 pieces) among the assemblage was an interesting point in the artefacts of the site, which indicated that the core reduction and tool making process had been done on the site (Shen 1997.11). Another 76 pieces of tools (23.03% of the collected artefacts) included retouched pieces, notch/denticulate and some kinds of the scraper (Dé- jéte, single side scraper, heavy duty scraper and transverses) (Fig. 5). The flake tools, with a total number of 73, or 96.05% of the tools, are the most abundant blank types of the collection, and then the two blades (2.63%), and one bladelet (1.32%), are the next most frequent collect- ed tools. The limited number of the blades and bladelets is relevant to the rare frequency of blade cores (3.51%) and bladelet cores (3.51%) on the site (Fig. 6). Besides the tools collected from the site that are produced by flaking techniques from the core, a total of 73 blank debi- tages were also collected among the artefacts, and 71 pieces of these (97.26% of the collected blank debitages) were produced by flaking techniques (ex- cept for several cases of the Lovallois technique) and two pieces (2.74%) were produced by a blade removing technique from the core, and had been made with a similar technique to that seen with other tools and cores (Fig. 6). Relative chronology of Khervali Based on the collected artefacts, and the lack of low- er Palaeolithic indicating elements such as the Acheu- lean hand-axes or bifaces and picks, with the excep- tion of existing core choppers and cores, and the abundant evidence of using the flaking and Lovallois techniques, as well as the frequency of scrappers and notch/denticulate in the collected items, and also the lack of upper Palaeolithic elements such as Typology Number % Core\Core Frag. 155 46.97 Debitage 73 22.12 Tools 76 23.03 Debris 26 7.88 Total 330 100 Tab. 1. Number and percent of Khervali artefacts. Fig. 4. Location of the Khervali Valley near the Karkheh River (left bottom), and a view of the middle part of the Khervali Valley (con- glomerate landscape). 1 The section of Locus 2 is attributed to a collection of artefacts scattered on the dried river bed which passes through the Kherva- li Valley. Regarding the unsystematic nature of the survey and sampling, this collection was not mixed with other systematically collected artefacts. 2 Since the choppers are one of the major forms of cores (Shea 2013.50), the choppers are categorized as cores in the collected ar- tefacts of this site. Probable evidence of a Middle Palaeolithic site in the northern parts of the Susiana Plain, Khuzestan, Iran 429 end scrapers, burin, high amount of retouched bla- des and Dufour 3 3 (Olszewski, Dibble 2006.367), we believe that this site dates back to the middle Palae- olithic. The raw material resources The accessibility of the raw material resources was one of the key factors in choosing the location of prehistoric settlements (Heydari 2004). Therefore, studying the material and structure of the raw ma- terials (stone) utilized to produce the tools and ar- tefacts in the site, as well as the geological features of each region, play major roles in finding out where the resources originated and also speculating about the exploitation methods in the prehistoric sites, specially Palaeolithic ones. Examining the collected stone artefacts in the present study revealed that the raw materials utilized in the Khervali Valley are mostly flint (pieces of chert, Jasper, Opal) and rarely river rubble like sandstone or quartz. Most of the ar- tefacts are made of light brown or crimson flints, and in some cases green and red or grey and cream ones. These are the main lithological features of the Bakh- tyari Conglomerate Formation 4 4 , dating back to the Cretaceous, Eocene and Oligocene geological peri- Fig. 5. Typology of the Khervali stone tools. Fig. 6. The used techniques for core reduction and knapping in the Khervali site. 3 It should be mentioned that the existence of blades and bladelets is not very surprising in the lower and middle Paleolithic pe- riods (Wojtczak 2014.27–33). 4 This formation is named after the Bakhtyari tribe and is characterized by alluvial-foothill sediments derived from altitude erosion, including conglomerates and calcareous sandstones. Fig. 7. Some of the collected artefacts from the Khervali site: 1 core/chopper; 2 flake core; 3 heavy duty scraper; 4–5 Levallois flake; 6–7 denticulate flake; 8 scraper with heavy retouch; 9 déjéte; 10 single-sided scraper; 11 transverse scraper. Saeid Bahramiyan 430 ods (Darvishzadeh 1991.660), and their outcrops have been reported in the western Zog- ros mountains and the north- ern regions of Khuzestan, par- ticularly in the northern parts of Susiana (Dinarvand, Meh- ranpour 2015; Bahramiyan, Ahmadzadeh Shouhani 2016), Deh Luran (Zeynivand 2017) and Mehran plains (Darabi et al. 2012). Besides the results of the precise typo-technological analyses on the stone artefacts of the Khervali site, which re- vealed the existence of a work- shop with great accessibility to the raw materials (Bahrami- yan 2015), this site is also lo- cated on the Bakhtyari Conglo- merate Formation (Fig. 3), which obviously demonstrates the direct access of the settlers to the raw material resources needed to produce their artefacts. Conclusion Despite one century of Palaeolithic studies in Iran, Khuzestan province is one of the regions that have remained in darkness, compared to more studied re- gions such as Zagros and Alborz. Khuzestan province in general, and its northern region (Susiana plain) in particular have in Iranian archaeological studies a major role, although Palaeolithic in the region, un- like the more recent periods, is not well studied. The little knowledge we have comes from recent studies, yet the results are very interesting and there are many reports about sites from different Palaeolithic periods, in Susiana plain and its northern regions such as the heights between the Susiana plain and western foothills of Zagros. The main points about these sites is their location nearby permanent and seasonal water resources, and on the Bakhtyari Con- glomerate Formation in this interstitial area, which shows the relation between these sites and the acces- sibility to raw material sources, which could be reach- ed often and easily in order to support tool-making activities. The recently discovered site of Kherveli is one of the rare identified Palaeolithic sites in the northern Susiana plain with two main features: its exceptional geographical location between the Zag- ros mountains and the lowlands of Khuzestan, an in- terstitial area whose Palaeolithic history is still un- known; second, the direct and definite relation of the location of the site with the accessibility to the raw materials on the Bakhtyari Conglomerate For- mation, with its high density of raw materials. 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