LEAD ISOTOPIC ANALYSIS FOR THE IDENTIFICATION OF LATE BRONZE AGE POTTERY FROM HALA SULTAN TEKKE (CYPRUS)

Lead isotopic compositions were measured for 65 sherds from five pottery wares (Plain White, Coarse, Canaanite, White Slip and Base‐ring) excavated from the Late Bronze Age site of Hala Sultan Tekke (Cyprus). The elemental composition and isotopic signature of the sherds were compared with those of 65 clay samples collected in south‐east Cyprus, mainly in the surroundings (<20 km) of Hala Sultan Tekke. This work shows the effectiveness of using lead isotopic analysis in provenance studies, along with other analytical techniques, such as X‐ray diffraction (XRD) and a scanning electron microscope (SEM) equipped with an energy dispersive X‐ray detection (EDX) facility, to identify the composition of pottery wares and the clay sources used for pottery ware production.     

FIRING ANALYSIS OF SOUTH-EASTERN MISSOURI INDIAN POTTERY USING IRON MÖSSBAUER SPECTROSCOPY*

The Mössbauer spectra of prehistoric pottery and clay from the Malden Plain of south-eastern Missouri, USA, were examined. The pottery dates from AD 500 to 1400. The earlier sherds were tempered with sand and the later ones with shell. The sherds and clay contain a mixture of illite, smectite, and kaolinite. Most samples of clay and sherds contained both ferric and ferrous species. The spectral parameters for the ferric species were %DLE_Q～0. 7—1.1 mms^-1 and δ～0.0–0.3 mms^-1 for the ferrous species, ΔE_Q～2.1–2.7mms^-1 and δ～0.7–1.0mms^-1. The ferric to ferrous ratio is more accurately determined from the spectra than from consideration of the colour or the firing core of the sherds, which are not always related to the iron species ratio. Differences among sherds in the ferrous ΔE_Q can be related to original temperature of heating but with low precision.     

HELLENISTIC GLAZED WARES FROM ATHENS AND SOUTHERN ITALY: ANALYTICAL TECHNIQUES AND IMPLICATIONS

The original intention of the project, conceived in the context of the British School at Rome's excavation and survey programme in the Bradano basin (based on Gravina) was to establish the composition patterns of Hellenistic glazed wares from sites in southern Apulia, and then to use these to trace the trading patterns of the area, against a control group of sherds from the Athenian Agora. It proved possible to distinguish Attic from Apulian sherds by their nickel and chromium content, and average-link-cluster-analysis by computer showed that Gnathian ware from Taranto could be distinguished from seven other south Italian groups, suggesting that speciality wares were made of clays from special beds. Because of the geological homogeneity of the area no further distinctions could be made, but some sherds were also analysed petrologically and by heavy mineral analysis, for a methodological comparison. The very homogeneous geology, coupled with the fineness of the wares showed these methods to be at the limits of their usefulness. Only very generalized conclusions could be drawn concerning the origin of the pottery from the petrological evidence; the micro-mineralogical data showed that interesting differences existed between pottery from the main Apulian sites, but these could equally have reflected natural variations occurring within fairly homogeneous clay deposits.     

广东博罗先秦硬陶的XRF和INAA研究

为揭示广东博罗梅花墩、银岗、横岭山三地古陶器的产源、烧造工艺、技术传播和化交流等方面情况,用波长色散X射线荧光分析(WDXRF)、仪器中子活化分析(INAA)同时测量了广东博罗梅花墩、银岗、横岭山等三地点所出38片西周至春秋、战国硬陶中Al、Ba等元素的含量。并用主成分分析分别处理了测量数据。两套数据的分析结果均表明,梅花墩、银岗和横岭山的硬陶原料互不相同,各地点硬陶可能主要是“自烧自用”。数据分析还表明在南方各省区中,广东硬陶具有Al2O3含量偏高这一明显的地区特征。     

Technological examination of Neolithic-Bronze Age pottery from central and southeast Europe and from the Near East

Scanning electron microscopy is used to examine sequences of pottery sherds from central and southeast Europe, Greece and the Near East spanning the period from the Neolithic to the Bronze Age, in order to obtain information on the ceramic technologies employed in antiquity. On the basis of the vitrification observed and the chemical composition, the types of clay and firing procedures (temperature and atmosphere) employed in the manufacture of the pottery are defined. Two under-lying trends in the associated ceramic technologies are thus identified. The first is based on the use of non-calcareous or “unstable” calcareous clays fired in a reducing atmosphere at temperatures below 800 °C and the second on the use of “stable” calcareous clays fired in an oxidizing atmosphere at temperatures in excess of 800 °C.     

The forest or the trees? Behavioral and methodological considerations for geochemical characterization of heavily-tempered ceramic pastes using NAA and LA-ICP-MS

In this paper, the utility of LA-ICP-MS for instrumentally separating clay and temper within pottery samples is examined through a well-known case study that has been previously characterized through NAA and petrography. Coarse Orange pottery is composed of kaolinitic clays heavily tempered within volcanic ash from the basalt-rich Tuxtla Mountains of southern Veracruz, Mexico. We attempt to address the following topics with analyses on this pottery: 1) can LA-ICP-MS replicate the same groups previously identified by NAA and petrography; 2) can instrumental isolation of the clay fraction within the pottery replicate known patterns in raw clay source geochemistry in the Tuxtla Mountains; 3) can data for both the clay and volcanic ash fractions of each pottery sherd be combined to simulate the bulk INAA data? The results demonstrate that the clay fraction of the pottery sherds can be isolated. Furthermore, the LA-ICP-MS data for the clay fractions display nearly identical chemistry to available NAA data for raw clay samples collected from geological contexts in the region. Instrumentally isolating the clay fraction in this case eliminates the homogenizing effects of adding a common temper and increases the chemical separation among groups making it easier to identify clay procurement strategies for each specimen. However, focusing only on the clay fraction ignores significant tempering variation. Attempts to simulate the bulk NAA by combining LA-ICP-MS data for clays and temper was reasonably successful in reestablishing the tempering variation lost by exclusive focus on clays, but such an approach could not replace the more precise data generated from NAA and petrography.     

Investigating ancient technology and ceramic composition at Al-Khidr site (Failaka Island,Kuwait): Geochemical analyses of Bronze Age pottery by pXRF and thin-section petrographic analyses

Pottery assemblages from the site of Al-Khidr on Failaka Island, Kuwait, were analysed in order to reconstruct the chemical composition of Bronze Age wares and to build a mineralogical database of Bronze Age pottery dated from Failaka Periods 1–3B (2000–1650 BCE). A total of 145 ceramic sherds from Al-Khidr, as well as reference groups, were analysed by non-destructive portable X-ray fluorescence (pXRF) spectrometry. Preliminarily petrographic thin-section analysis was applied to four samples to reconstruct possible clay paste recipes and to identify raw materials. The results indicate that geochemical analyses can successfully distinguish subgroups within a typological category of ceramic assemblages. The results identified two subgroups within the Al-Khidr typological category: the Dilmun Barbar tradition and the Mesopotamian tradition. Future comparative compositional studies can be conducted to explore other aspects of craft specialisation, such as ceramic technological choices and possibly the influence of sociopolitical units.     

Ceramics Technology at Late Classic K’axob,Belize

Abstract

Excavation of a Late Classic Maya platform at K’axob, Belize, has revealed a suite of pit features and associated artifacts that are strongly suggestive of pottery production. Interpretation of the features as remnants of pit kilns used to fire pottery is bolstered by comparanda from the Andean region. Archaeometric and experimental replication studies also support the interpretation of this locale as one of pottery fabrication. Findings discussed include features identified as kilns, raw material suitable for temper, lumps of fired clay, ground stone, and expedient clay-working tools made of recycled pottery sherds. This research contributes to knowledge of the organization of Maya pottery production by providing the most comprehensive information presented to date on the technology of ancient Maya pottery fabrication and firing.     

POTTERY TECHNOLOGY AT THE CHALCOLITHIC SITE OF TELEILAT GHASSUL (JORDAN)

Sherds from the Chalcolithic levels at Teleilat Ghassul show evidence of a considerable degree of sophistication in pottery technology and design. The bodies are almost certainly made from a siliceous illitic clay which contained some calcium carbonate, and was obtained locally. Some unusual, yet common, sherds are composed of highly vitrified black bodies with a surface wash of a refractory white clay. These sherds indicate the production of one of the earliest known totally vitrified ceramic fabrics. The latter sherds have been examined in some detail by chemical, thermal and X-ray analysis, and optical and scanning electron microscopy.     

THE UTILIZATION OF TRACE CHEMICAL COMPOSITION TO CORRELATE BRITISH POST-MEDIEVAL POTTERY WITH EUROPEAN KILN SITE MATERIALS

This study uses X-ray fluorescent analysis to compare the trace chemical composition of seventeen pottery sherds excavated from sites in Britain with the trace analyses of twenty four sherds from continental sources. Results indicate that certain elements, notably zirconium, titanium, rubidium, and strontium show little variation within a particular sherd and are consistent among samples from the same source. Certain other elements appear to show wide variation which is possibly attributable to firing conditions, burial or is connected with the glaze. The comparisons of analyses indicate that nine of the seventeen British sherds can be closely correlated with particular continental sources. Tentative correlation is suggested for five sherds. The remaining three sherds clearly do not come from any of the sources investigated.     

Gabbroic clay sources in Cornwall: a petrographic study of prehistoric pottery and clay samples

Summary.  This analysis of prehistoric pottery and clay samples from Cornwall demonstrates that the clay used to make Cornish gabbroic pottery in prehistory originated around the gabbro rock outcrop in a small area of the Lizard peninsula. The research uses petrographic and chemical analysis to subdivide the prehistoric pottery into six groups. Owing to the unusual geology of the Lizard these groups can be attributed to specific locations. The most abundant pottery fabric, Typical Gabbroic , was made using coarse clay which is mainly found in a 1 km² area near Zoar. A finer version of this clay, found higher in the soil profile or slightly transported and redeposited, was used to make Fine Gabbroic pottery and an even finer variant called FNS (Fine Non-Sandy) Gabbroic . We identify for the first time here a Loessic/Gabbroic pottery fabric which can be matched exactly to clay found at Lowland Point. Serpentinitic/Gabbroic pottery was made using clay from the gabbro/serpentinite border zone. Pottery made from the Granitic/Gabbroic fabric did not match any clay from the Lizard, showing that gabbroic clay was sometimes removed and made into pottery elsewhere in Cornwall. The main clay source near Zoar was used for clay extraction throughout the Bronze Age and Iron Age for pottery which was traded all over Cornwall. Other gabbroic clay sources produced pottery only during certain periods and exclusively supplied particular settlements, such as the Loessic/Gabbroic fabric which was found only at Gear and Caer Vallack. The results suggest that pottery was produced by several small-scale cottage industries, which may have operated on a seasonal, part-time basis and probably formed only part of a wide range of activities located around the Lizard area.     

Ancient Egyptian Pottery from the Subsurface Floodplain of the Saqqara–Memphis Area: Its Mineralogical and Geochemical Implications*

Potsherds recovered from the Saqqara–Memphis floodplain in Egypt, dated according to their typology and radiocarbon dating of the included sediments, are analysed geochemically and mineralogically to identify source materials and fabrication characteristics. Pottery layers were identified and potsherds were recovered from several settlement levels. Sherd typology was used to identify sherds from four periods (the Old and New Kingdoms, and from the Late Period to the Ptolemaic). The Pharaonic pieces were found at depths of between 8 and 12 m and the later material was between 6 and 3 m. Chemical analyses of the potsherds revealed three main source materials: local Nile silt, marl clay and mixed Nile silt–marl. Two marl clay types were recognized: marl clay from Upper Cretaceous marine sediment and another one from Late Pliocene deltaic sediments. The mineralogical composition of the pottery samples shows that the estimated firing temperature was about 850–900°C. No consistent differences in sherd mineralogy and geochemistry were found according to pottery types, so that the ancient Egyptian potters used essentially the same materials throughout the Pharaonic period. However, this initial study has revealed the existence of extensive pottery‐rich occupation sites buried within the Nile floodplain deposits between Memphis and Saqqara.     

甘肃新石器时代与青铜代陶器研究的内容和科学意义

综述了现代分析测试方法和数学方法在古代陶器成分分析、年代测定、制作工艺、产地判断、形态分析方面的应用以及甘肃新石器与青铜时代陶器研究的意义。     

Thermoluminescence (TL) dating of ancient Syrian pottery from six different archaeological sites

Syrian archaeological pottery sherds were collected for TL dating from six different archaeological sites named Al-Shermanieh, Tell Serah, Der Al-Hajar (south of Damascus), Tell Al-Shekdakah, Tell Al-Souwirieh (east of Damascus) and Khurbet Al-Kulieh (south west of Damascus). The samples were prepared by fine grain technique and the annual dose for each sample (pottery sherds and soil sample) was measured using an alpha spectrometer system for uranium and thorium contribution as well as with atomic absorption spectrometry for the potassium contents. The mean ages were found to be 5500 ± 150 years, 2950 ± 50 years, 1200 ± 50 years, 1300 ± 150 years, 3300 ± 100 years and 3400 ± 200 years for the examined pottery from the sites Al-Shermanieh, Tell Serah, Der Al-Hajar, Tell Al-Shekdakah, Tell Al-Souwirieh and Khurbet Al-Kulieh, respectively. The results were in good agreement with the ages estimated by archaeologists except for one sample which belongs to Der Al-Hjar site.     

A Study Of The Firing Technique Of Pottery From Kaman‐Kalehöyük,Turkey, by Synchrotron Radiation‐Induced Fluorescence X‐Ray Absorption Near‐Edge Structure (Xanes) Analysis*

Fe K‐XANES spectra of a series of pottery sherds excavated from the archaeological site of Kaman‐Kalehöyük, Turkey, were measured to reveal the firing technique of the pottery. The analysis disclosed relationships among the chemical form of the iron, the firing conditions and the colour of the pottery. The pottery referred to as ‘Grey Ware’ found at this site was classified into two groups according to the chemical form of the iron. Also, it was revealed that the Iron Age pottery referred to as ‘Cream Ware’ was produced first under reducing conditions, and then fired under oxidizing conditions.     

Provenance study of early and middle bronze age pottery from Kaman-Kalehöyük,Turkey, by heavy mineral analysis and geochemical analysis of individual hornblende grains

The provenance of Early Bronze Age and early Middle Bronze Age pottery produced between 2100 and 1970 B.C. and excavated from Kaman-Kalehöyük, Turkey was studied using mineralogical methods, including heavy mineral analysis and geochemical study of individual hornblende grains. The relative abundances of heavy minerals in the fabrics of 20 Early Bronze Age (EBA) and early Middle Bronze Age (MBA) pottery sherds, together with 27 local sediments collected within a radius of 25 km of the site were studied. The heavy mineral distributions in the Kaman region were statistically analyzed for consistencies in their occurrence. Amphibole was found to be the most abundant heavy mineral in most of the analyzed samples, followed by titanite and epidote. The amounts of other minerals such as garnet, clinopyroxene, and zircon are subordinate. Different proportions of heavy minerals in the fabrics allow categorization of the EBA and early MBA potteries into 5 groups. Comparative study of heavy mineral assemblages of local sediments and pottery suggests that half of the EBA and most of the MBA potteries were produced from sediment near the excavation site, whereas the other half of the EBA potteries were produced from sediment occurring at 25 km east or more east of the site. The geochemistry of individual amphibole grains was studied by electron-microprobe analysis. Most of the studied amphibole grains are calcic and aluminous, corresponding to hornblende. They can be further characterized into four types based on their chemical composition. The combination of heavy mineral identity and hornblende geochemistry provides diagnostic evidence for the origins of Kaman-Kalehöyük pottery. These and analogous heavy mineral techniques are effective archaeometric tools for determining pottery provenance.     

THE ORIGIN OF BLACK‐FIGURE GREEK CERAMICS FOUND IN NAUCRATIS (NILE DELTA)*

At the site of the Greek trading port of Naucratis, located on the Canopic mouth of the Nile inland from Alexandria, Flinders Petrie and later archaeologists encountered sherds of Classical Greek black‐figure pottery. We have characterized the pastes of 14 of these specimens, drawn from the collections of the British Museum and the Ashmolean Museum at Oxford, by neutron activation analysis and numerical taxonomy. The ceramics agree in composition with a reference group centred on Athens. We also investigated a small number of additional black‐figure sherds from other sites. One specimen, from Ruvo di Puglia (Italy), actually originated in or near Marseilles. There was no evidence for local manufacture of black‐figure pottery at Naucratis.     

LUMINESCENCE DATING OF POTTERY FROM LATER PREHISTORIC BRITAIN*

Dating of later prehistoric settlements relies heavily on potter; typologies in England and yet there has been little scientific dating in order to verify these typologies. In this work, luminescence dating techniques were applied directly to the pottery which forms the typological framework. Excellent agreement was obtained between the luminescence ages, and archaeological age ranges for known‐age pottery sherds with diagnostic form and surface decoration. A lower correlation, however, was found in several regions between the luminescence ages for undecorated body sherds and the archaeological assessment which was necessarily based solely on fabric, suggesting the need for reassessment of these fabric chronologies.     

Western technical traditions of pottery making in Tang Dynasty China: chemical evidence from the Liquanfang Kiln site,Xi'an city

This study is based on the SEM-EDS and LA-ICP-AES analyses of a sample of twenty-nine Tang sancai sherds unearthed from the Liquanfang site, Xi'an city. The results indicate that ceramics with yellowish bodies are calcareous and those with red bodies were made of ferruginous clays. The use of calcareous clay in Tang sancai bodies is otherwise unknown in Chinese history, which suggests that the technique of Tang sancai making at this site might have been influenced by ceramic technology from the Near East or Central Asia. The paper therefore argues that the traditional approach of treating calcareous clay as the main characteristic of pottery made in the ancient Near East or Central Asia is not necessarily accurate. It is likely that some calcareous Tang sancai ceramics were made in the capital city of the Tang dynasty.     

A pottery workshop with flint tools on blades knapped with copper at Nausharo (Indus civilisation, ca. 2500 BC)

Twenty years after its discovery, the pottery workshop of Nausharo (province of Baluchistan, Pakistan), which yielded a series of knapped stone tools in association with unbaked sherds and clay waste, is still of unique importance in Asian protohistorical studies. The types of pottery production (sandy marl fabrics) identified in this workshop, which is dated to ca. 2500 BC, correspond to the majority of the domestic pottery discovered at the site during the first two phases of the Indus Civilisation. The flint blades discovered in the workshop were made from exotic flint, coming from zones close to the great Indus sites such as Mohenjo-Daro and Chanhu-Daro. This is also the origin of a small amount of the pottery (micaceous fabrics) found at Nausharo in domestic contexts, e.g. Black-Slipped-Jars. The butts of the blades display features characteristic of pressure detachment with a copper pressure point. Gloss and microwear traces (polish) testify to the blades' having been used for finishing the clay vessels: for actual finishing (trimming) while they were being turned on a wheel, and possibly also for scraping by hand. Both of these operations are distinctly attested to by the presence in the workshop of two different types of clay shavings.