Now showing 1 - 10 of 25
  • Publication
    Optimization of portable X-ray fluorescence spectrometry for the assessment of soil total copper concentrations: application at an ancient smelting site
    (Springer, 2019-02)
    Rogan, Georgia
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    ; ; ;
    Yukongdi, Pakpadee
    ;
    Purpose Copper (Cu) is the earliest anthropogenic metal pollutant, but knowledge of Cu soil concentrations at ancient metalworking sites is limited. The objective of this work was to examine the ability of portable X-ray fluorescence to quantify Cu in soils at such sites. Materials and methods Using a Bruker Tracer III-SD pXRF, we examine factory "scan" settings versus simple instrument parameter changes (a reduction in energy settings from 40 to 12 kV) to target analysis for Cu. We apply these to a set of uncontaminated samples (n = 18, < 92 mg Cu kg-1) from Central Thailand and compare results to standard wet chemistry analysis (aqua regia digestion and ICP-OES analysis). We then apply the optimized method to a set of highly contaminated samples (n = 86, < 14,200 mg Cu kg-1) from a known ancient smelting site. Results and discussion We demonstrate that simple changes to factory recommended "scan" settings can double the sensitivity of Cu determination via pXRF ("optimized limit of determination" of 19.3 mg kg-1 versus an initial value of 39.4 mg kg-1) and dramatically improve the accuracy of analysis. Changes to other results for other elements are variable and depend on concentration ranges, soil matrix effects, and pXRF response for the individual element. We demonstrate that pXRF can accurately determine Cu across a wide concentration range and identify grossly contaminated soil samples. Conclusions We conclude that pXRF is a useful tool to rapidly screen and analyse samples at remote sites and can be applied to ancient metalworking sites. Simple optimization of the pXRF settings greatly improves accuracy and is essential in determining comparative background concentrations and "unaffected" areas. Application to other elements requires further element and matrix specific optimization.
  • Publication
    In search of Tabal, central Anatolia: Iron Age interaction at Alişar Höyük
    (Cambridge University Press, 2023-05-15) ; ;
    Marsh, Ben
    Trajectories of social complexity following socio-political collapse have provided fertile ground for new theoretical and methodological perspectives in archaeology. Here we investigate ceramics from the site of Alişar Höyük, a settlement that was likely part of the Iron Age polity of Tabal. Best known from Assyrian texts, Tabal emerged in central Anatolia after the Late Bronze Age Hittite collapse, but its structure and operation remain enigmatic. Excavated in the 1920s and 1930s, a large sample of ceramics from Alişar has since been curated at the Oriental Institute, University of Chicago. Using multiple perspectives on this Middle Iron Age ceramic sample, we explore the political and economic structures at this site in terms of its interaction sphere. Our results suggest that if Alişar was part of Tabal, by the Middle Iron Age this polity was highly intra-regionally integrated, competitive and heterarchical.
  • Publication
    The Iron Age on the Central Anatolian Plateau
    (Oxford University Press, 2011) ;
    Archaeological views of the Iron Age in inland Anatolia have been dominated by the two main polities that developed during the first millennium b.c.e. : Urartu in the east and Phrygia in the west. Our understanding of how these and other Iron Age societies developed in the aftermath of the Late Bronze Age Hittite collapse, how new polities emerged and forged new political and economic relations, however, is limited due to the rarity of excavated Early Iron Age sites in the region (Genz 2003 ; Grave et al. 2009 ; Kealhofer et al. 2009 , 2010). One of the keys for understanding Iron Age dynamics is the development of a regional chronological framework. Since 2000, each of the sites discussed here has produced new Iron Age dates, oft en substantially altering our interpretation of the relationships between sites, the rate of change within Iron Age societies, and the timing and scale of interaction (figure 18.1). Results from these excavations are beginning to define an exceptionally dynamic and volatile period of society building. However, constraints in the development of a high-resolution regional chronology (radiocarbon calibration plateaus, sampling issues) continue to challenge our ability to adequately map the dynamics of Iron Age societies. After describing the geographical context of the Anatolian plateau, we outline advances and constraints in the development of a regional chronological framework.
  • Publication
    New dates for old kilns: A revised radiocarbon chronology of stoneware production for Angkorian Cambodia
    (Cambridge University Press, 2018) ; ; ;
    Stark, Miriam T
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    Ea, Darith
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    Chhay, Rachna
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    Kaseka, Phon
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    Suy, Tan Boun
    Radiocarbon dates from recent excavations of a range of Angkorian Khmer (~9th-14th CE) stoneware kiln complexes provide a new and independent perspective on the timing and geography of Khmer ceramic production. These data demonstrate a clear two-phase sequence. The first, in the late 9th to late 12th centuries CE, marks a period of intensive production located both to the east of Angkor and to the south at Cheung Ek, south of Phnom Penh. A second shorter phase of production occurred in the late 13th to late 14th CE at more distant provincial settings following the collapse of the Angkorian state.
  • Publication
    Ceramic Compositional Analysis and the Phrygian Sanctuary at Dümrek
    (University of Pennsylvania, Museum of Archaeology and Anthropology, 2005) ; ;
    Marsh, B
    Phrygian (or stylistically similar) ceramics are a common component of Iron Age sites in central Anatolia, but much of Phrygian culture remains obscure. In this chapter we use a combination of systematic survey and archaeological science at the ritual site of Dümrek to help us understand the extent of Early and Middle Phrygian cultural interaction in central Anatolia.
  • Publication
    Ancient Gordion
    (Cambridge University Press, 2022-09) ; ;
    Voigt, Mary Mathilda

    Ancient Gordion has long been recognized as a key Iron Age site for Anatolia and the eastern Mediterranean. Archaeological research has revealed much about its sequence of occupation. However, as yet no study has explored the underlying drivers of political and economic change at this site. This volume presents an overview of the political and economic histories supporting emergent elites and how they constructed power at Gordion during the Iron Age (1200-300 BCE). Based on geochemical and typological analysis of nearly 2000 Late Bronze Age to Hellenistic ceramic samples, the volume contextualizes this primary dataset through the lens of ceramic production, consumption, exchange and emulation. Synthesizing site data sets, the volume more broadly contributes to our understanding of the pivotal role of groups and their economic, social, and ritual practices in the creation of complex societies.

  • Publication
    Cultural dynamics and ceramic resource use at Late Bronze Age/Early Iron Age Troy, northwestern Turkey
    (Elsevier Ltd, 2013) ; ;
    Hnila, Pavol
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    Marsh, Ben
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    Aslan, Carolyn
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    Thumm-Dograyan, Diane
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    Rigter, Wendy
    Changes in resource use over time can provide insight into technological choice and the extent of long term stability in cultural practices. In this paper we re-evaluate the evidence for a marked demographic shift at the inception of the Early Iron Age at Troy by applying a robust macro scale analysis of changing ceramic resource use over the Late Bronze and Iron Age. We use a combination of new and legacy analytical datasets (NAA and XRF), from excavated ceramics, to evaluate the potential compositional range of local resources (based on comparisons with sediments from within a 10 km site radius). Results show a clear distinction between sediment-defined local and non-local ceramic compositional groups. Two discrete local ceramic resources have been previously identified and we confirm a third local resource for a major class of EIA handmade wares and cooking pots. This third source appears to derive from a residual resource on the Troy peninsula (rather than adjacent alluvial valleys). The presence of a group of large and heavy pithoi among the non-local groups raises questions about their regional or maritime origin.
  • Publication
    The Southeast Asian water frontier: coastal trade and mid-fifteenth c. CE "hill tribe" burials, southeastern Cambodia
    (Springer, 2019-09) ; ;
    Beavan, Nancy
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    Tep, Sokha
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    Stark, Miriam T
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    Ea, Darith

    In mainland Southeast Asia, the so-called water frontier unified an otherwise geographically broad and culturally disparate economic network of long-, medium-, and short-distance trade of the 14th–17th century CE "Age of Commerce." Focus on the rise of the larger port towns supporting this burgeoning maritime trade (e.g., Ayutthaya, Melaka, Hoi An) has overshadowed smaller maritime operations that must have serviced less regulated coastlines. In this paper, we evaluate the evidence of likely supply lines for relatively remote sites in the Southern Cardamom Ranges of southwestern Cambodia. We present the results of a geochemical analysis of ceramics from two contemporary and short-lived assemblages: comprehensively dated mid-15th c. to mid-17th c. CE burial complexes in the Cardamom Mountains, and a dated shipwreck (Koh S'dech) recovered from waters off the adjacent coastline. We compare the shipwreck assemblage with other wreck assemblages to contextualize it within larger maritime exchange patterns. The Koh S'dech wreck assemblage appears typical of a Southeast Asian short-haul coastal trader of this period, with a cargo consisting of a range of utilitarian household ceramics: large, medium, and small glazed stoneware storage jars, earthenware cooking pots, stoves and mortars, and "tableware" bowls. Comparison of burial, shipwreck, and reference ceramic compositional data confirms the jars and fine wares predominantly came from multiple production centers in Central and Northern Thailand. The few Angkorian jars identified in the burials were evidently heirlooms from what was, by the mid-15th c. CE, a likely defunct Khmer production complex east of Angkor. The results of this provenience analysis highlight (a) the Cardamom burials as an example of previously undocumented unregulated coastal interaction and (b) the relatively sophisticated and coordinated market-oriented strategies of inland ceramic producers at this time. For mainland Southeast Asia, the water frontier integrated not only ethnically diverse maritime port communities, but also those in more remote inland regions.

  • Publication
    Using neutron activation analysis to identify scales of interaction at Kinet Höyük, Turkey
    (Academic Press, 2008) ; ;
    Marsh, Ben
    ;
    Gates, Marie-Henriette
    We use NAA to characterize a relatively large archaeological ceramic sample from the Late Bronze Age to Hellenistic phases of Kinet Höyük, a coastal Turkish site in the Gulf of Iskenderun at the northeast corner of the Mediterranean Sea. The geographic extent of local Kinet wares (how local is local?) is established through comparison with sediment samples across the Kinet hinterland. Four major compositional groups are identified: local and locally imported wares, imports from Cypriot, and presumed Western Anatolian and Aegean centers, and imports that appear relatively homogenous elementally but comprise typologically diverse ceramics with attributions that range from Cyprus to the coastal mainland. Comparison with other published NAA studies for this site reinforces the elemental evidence for local production, and underlines the need for caution when assuming local production always equates with local clays particularly for coastal sites. We propose that the chronological distribution of the local and non-local groups provides a useful political economic proxy. The study indicates systemic and widespread political disruption and marginalization at the transition to the Late Iron Age in this region.
  • Publication
    Patterns of Iron Age interaction in central Anatolia: three sites in Yozgat province
    (Cambridge University Press, 2010) ; ;
    Marsh, Ben
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    Steadman, Sharon
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    Gorney, RL
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    Summers, GD
    The cultural and political changes that happened in Anatolia after the collapse of the Hittite Empire have only recently been recognised as a significant, but as yet unexplained, phenomenon. Here we present the results of analyses of ceramics from three sites south and southwest of the present-day town of Sorgun − Çadır Höyük, Kerkenes Dağ and Tilkigediği Tepe − to identity how regional groups within the Hittite core area regrouped in the aftermath of the collapse. Ceramic analyses provide a means to assess both cultural continuity and the scale and nature of interaction in a region. Results suggest some evidence of cultural continuity at Çadır Höyük from the Late Bronze Age into the Middle Iron Age, and highlight the variable local responses in the aftermath of Hittite collapse.