Abstract
The Neolithic and Chalcolithic periods are the important periods of human life. The why and how of the transition process from the Paleolithic to the Neolithic in different regions is considered an important archaeological issue. Therefore, it is important to understand and study the sites related to this period to explain this process. Ghela Zeka Tape is located in Khorramabad, in the central Zagros region. Valuable information about the Neolithisation process, Neolithic, and Chalcolithic periods has been published from this area. Based on the results of the boundary determination, Ghela Zeka has an area of nearly three hectares. In this research, with the aim of introducing and explaining the data, the author has reviewed, studied, and compared the findings obtained from the Ghela Zeka, including stone tools, pottery sherds, and a sample of an animal figurine from the Neolithic and early Chalcolithic period. As a result of this research, was confirmed the possibility of the existence of layers from the Neolithisation period was raised and the presence of evidence from the pre-pottery and pottery Neolithic periods. These results were obtained from examining and comparing chipped stone materials such as various flake, mixed, pyramidal, and bullet-shaped cores, and tools such as notched, retouched blades/bladelets, and sickle blades, as well as pottery samples of the Roahel type. From the Chalcolithic period, evidence of pottery of the Bagh-e No and Giyan V types indicated a continuation of settlement from the Neolithic to the early Chalcolithic period. Based on radio carbon dating of the Bagh-e No culture and comparison with the Sialk I-III cultures on the Central Plateau, the Bagh-e No and Giyan V pottery cultures have been dated to the late 6th to late 5th millennium BC. As a result of this research, questions about the periods of the site and its role in the studies of this period are answered. The importance of this research is that by analyzing the materials of these important periods in Central Lorestan, it highlights the importance of future excavations to study the transition from Neolithic to Chalcolithic.
Keywords: Lorestan, Khorramabad, Neolithic, Chalcolithic, Qela Zeka.
Introduction
The beginning of agriculture and domestication, the creation of architecture and building houses with simple and primitive materials, and the increase in population are some of the prominent features of the Neolithic period. Referring to these changes and developments, Bar-yosef refers to it as the most vital human revolution after 2.5 million years of cultural growth and evolution (Bar-Yosef, 2001: 117). The first studies on the Neolithic in western Iran were carried out by Robert Braidwood in Kermanshah (Braidwood et al., 1961). After a hiatus of about 30 years, research on this period resumed with the excavation of the Chogha Golan (Zeidi & Conard, 2013), Sheikhi Abad (Matthews et al., 2013), and Eastern Chia Sbez (Darabi et al., 2011), which continues to the present (Darabi et al., 2024). During this period, the formation and expansion of early villages took place, which reflects a multifaceted development in the societies of the region in various economic, social, and ritual fields, which is divided into the following sub-periods: Transitional Neolithic (9700-8000 BC), Pre-Pottery Neolithic (8000-7000 BC), and Pottery Neolithic (7000-6000 BC) (Darabi, 2024: 8). The Central Zagros Chalcolithic period covers a period of two thousand years from 5500 to 3300 (Henrickson, 1991: 278). Until the 1970s, the Central Zagros Chalcolithic period chronology of western Iran was based on the Giyan sequence, which both McCan and Dyson published based on the typology of Giyan V pottery (Henrickson, 1985: 63). This period has been divided by Elizabeth Henrickson into three phases: Lower, Middle, and Upper (Henrickson, 1985:66). This period in Lorestan had its own unique characteristics, so that its Lower period was different from other areas of the Central Zagros and had its own culture with local characteristics, which is known as the “Bagh-e No culture”. After the Bagh-e No, it was replaced by a pottery culture known as the Se-Gabi (SGP) and the Giyan Vc, which was related to the Ubaid culture in Mesopotamia and which Hole called the “Daurai phase” in the Khorram Abad valley (Hole, 2007:72). The Upper Chalcolithic, like the previous period, had its own characteristics, which were more closely related to and more strongly influenced by the growing Uruk culture in Mesopotamia and Susa II in the Suziana Plain, which in the Central Zagros is comparable and recognizable with the Godin VI period (Young, 1969).
Since the Ghela Zeka Tape, with an area of nearly 3 hectares, has reliable and strong evidence of Neolithic and Chalcolithic periods in Khorram Abad, analyzing its cultural findings with the aim of introducing and explaining the importance of this work is an undeniable necessity. The evidence studied in this research shows that Ghela Zeka can have a prominent position as one of the key Neolithic and Chalcolithic sites in the Central Zagros. Given the extensive settlement and diversity of material finds, questions about the periods of settlement of the Tape, cultural interactions with surrounding areas, and its importance in studies of the Neolithic and Early Chalcolithic arise, which are addressed in this study. It seems that Ghela Zeka had settlements from different stages of the Neolithic period, which played an important role in the transition to the Early Chalcolithic and the Bagh-e No in Central Lorestan.
Identified Traces
Ghela Zeka is located in Dehpir district of the Khorram Abad county, 10 km northeast of Khorramabad city. This monument has a geographical location of 48° 46’ 67”, 33° 55’ 15” and 1475 masl (Fig. 1). The most important material findings from the Tape included chipped stones, pottery, and a clay figurine resembling boars.
The stone tools belonging to the Neolithic period were obtained from the excavated layers of the boundary determination pits, which included; various amorphous cores, pyramidal blades and blade lets and bullet cores, various types of simple and retouched blades, blade lets, chisels, scrapers, ridges and sickle blades (Figs. 3,4). The Ghela Zeka community mainly used chart in different colors and sometimes flint and obsidian to make and produce tools. The conglomerate outcrop 7 km west and southwest could have been the main source of this stone, which is distributed up to 3 km from the Tape (Fig. 2). Small fragments of obsidian in the layers of Ghela Zeka are an indication of trans-regional relations of the people of the site. Based on experimental studies in various sites in western Iran, this stone was probably supplied from the sources of Nimrud Dagh in southeastern Anatolia (Renfrew, 1969: 430; Darabi & Glascock, 2013; Pullar, 1990: 12).
A total of 16 source samples were obtained from the exploration of boreholes located in the field, including 5 blade and blade let, 7 amorphous cores, and 5 mixed cores. During the excavation, 32 stone tool samples were obtained. The Neolithic pottery of Lorestan is known as the Roahol phase (Bahrami & Fazeli Nashli, 2016: 32). This pottery was first identified from the Neolithic Roahol site in the Khorramabad valley (Bahrami et al., 2012), which can be compared with the pottery of Mohammad Jafar in the Alikosh of Dehloran (Bahrami & Mohammadian, 2025: 61). Several pottery sherds similar to Roahol pottery were found from the Ghela Zeka, two of which were painted (Figs. 5-6: No: 5,6). Also, a clay figurine resembling a boar was found in the Neolithic layers of borehole number 10, measuring about 5 cm in length and 4 cm in height (Fig. 7).
As mentioned earlier, the Early Chalcolithic in Lorestan is known as the Bagh-e No culture. Most of the pottery from this period was found from the surface survey (Fig. 6), and only 3 samples were obtained from the determine the boundary (Fig. 8). The pottery of this period has straight and elongated edges and due to insufficient and incomplete firing has a gray paste and a mixture of straw. Their outer surface coating is buff or orange, decorated mainly with geometric and rarely human and possibly plant decorations in black and red (Figs. 5,6, Table. 1). Young has classified the pottery of this period into two groups IA and IB. Young’s type IA pottery is a type of pottery with a mixture of straw and buff, which usually has thick walls, which Young has introduced as early pottery with a mixture of straw, and group IB he considers with the same characteristics but of the embossed type (Young, 1966:230). Goff has mentioned these potteries as early pottery (Goff, 1971:134). This type of pottery has also been reported in Chia Siah and Chia Zargaran of Tarhan (Schmidt et al., 1989; Goff, 1971), the upper layers of Abdul Hussein Tepe (Pullar 1990), and many sites in different cities of Lorestan.
Conclusion
Based on what has been said above, Ghela Zeka Tape encompasses a long settlement from the pre-pottery Neolithic period before the 7th millennium BC to the end of the 5th millennium BC. The presence of amorphous, pyramidal and mixed cores in this complex, along with ridges and dentils, indicates the possibility of settlement in the transitional Neolithic period before the 8th millennium BC. The presence and abundance of tools made on blades and blade lets, including sickle blades and bullet cores, reflects the existence of a possible agricultural community at Ghela Zeka in the 8th millennium BC. Ghela Zeka, like many Neolithic sites in western Iran, entered into trans-regional interactions during this period and received and produced obsidian chipped stones Given the area of the site, which is more than 3 hectares, this agricultural community was probably a settlement. No settlement of this period has been identified in Lorestan so far, and Ghela Zeka may be considered one of the most extensive Neolithic sites in western Iran. The discovery of an animal figurine could be a sign of a society with ritual and symbolic dimensions. Another important feature of Ghela Zeka is the presence of the Pre-pottery Neolithic following the Pottery Neolithic, which could help explain the transition between these two periods in the 7th millennium BC in the region and the differences in tool industries and livelihoods of its people. The continuity of settlement from the Neolithic to the Lower Chalcolithic is important, as reliable pottery evidence from the Bagh-e No and possibly Giyan V has been found. Perhaps one of the most important questions in the archaeology of Lorestan and western Iran, namely when, why and how the transition from the Neolithic to the Chalcolithic and its biological aspects, can be answered in scientific excavations. Based on available data, Ghela Zeka was inhabited until the late 5th millennium BC and then abandoned. Ultimately, an accurate understanding of the time and various aspects of life at Ghela Zeka requires scientific exploration and providing an absolute dating of it.