ANOMALOUS CARBON-13 VALUES FOR FIBRE TEMPER IN CERAMICS*

Ceramic vessels from Later Stone Age sites in the Seacow river valley, South Africa, were heavily tempered with C4 grasses. However, most δ¹³C values of the temper fall between the known δ¹³C ranges for C4 and C3 grasses. Among possible C3 additives that could skew the signal, ground bone, animal dung, alpine grass, Karoo scrub ash, and humic acid contamination are eliminated. The sherd surfaces yield fatty chars with C3-like values. Although these are not enough to account for all the skewing, they represent only the final cooking event. They were preceded by many such events in which fat was absorbed into the C4 grass then charred to soot by later periods in the fire. Thus organic carbon with the isotope composition of the fat built up while the vessel remained in use.     

ASSESSING NATURAL CLAY COMPOSITION IN THE VALLEY OF OAXACA AS A BASIS FOR CERAMIC PROVENANCE STUDIES

The Oaxaca Clay Survey was initiated to provide baseline data on clay composition within the Valley of Oaxaca, Mexico, to assist in provenance determination of prehistoric ceramics. Natural clays were sampled from 135 locations throughout the valley, and analysed using INAA in combination with ceramic petrography. Observed geographical trends in trace‐element and mineralogical composition confirm that while parent material (surficial geology) strongly affects clay composition, a continuum of variation exists within the valley. The study develops and tests a continuous spatial model of clay composition that provides greater resolution in ceramic sourcing than bedrock alone. By establishing a regional framework for Oaxaca Valley clays, the survey will support significant advances in our understanding of pottery production and exchange within the valley, and provide a more robust means for monitoring exchange between the valley and neighbouring regions.     

OXYGEN AND CARBON ISOTOPE ANALYSIS OF HUMAN TOOTH ENAMEL FROM THE NEW KINGDOM SITE OF TOMBOS IN NUBIA

This study examines the feasibility of using oxygen isotope analysis of tooth carbonate to identify immigrants from the New Kingdom site of Tombos in Nubia (n = 30). In comparison with published data, the results (δ¹⁸O_ca,VSMOW = 31.4‰) imply a substantial presence of immigrants. However, further analysis of these data strongly suggests the need to consider hydrological and cultural factors such as the contribution of aquifer waters to the Nile, use of groundwater sources, and differences in handling and storage of water. The carbon isotope analysis, in conjunction with published ⁸⁷Sr/⁸⁶Sr data, provides additional support for the presence of immigrants at Tombos.     

Trude Dothan (1922–2016): In Memoriam

Abstract

This paper sheds new light on the most common type of pottery associated with advanced phases of Early Bronze I (EB I) in the southern Jordan valley: the distinctive family or group known as Um Hammad Ware, or Proto-Urban D (PUD) Ware. To date, this kind of pottery was thought to be concentrated mostly around the site of Tell Um Hammad. This study presents new evidence suggesting that this ware was dispersed over a region considerably wider than previously understood, and that the centre of its manufacture was probably in the region of western Wadi Far'ah. This paper also explores the possibility that the origins of this family are to be found in the pottery traditions of the Golan region during the Chalcolithic period.     

Unusual Use of Freshwater Mussel (Unio sp.) Shells during the Early Bronze Age at Tell es-Sa'idiyeh,Jordan

Abstract

Amongst the marine, land and freshwater molluscs from the Early Bronze Age at Tell es-Sa'idiyeh, Jordan, is a group of freshwater mussels which shows evidence of distinctive working. These Unio bivalves have been examined using the scanning electron microscope in order to characterise the patterns of modification. Despite the fact that their precise function remains enigmatic, the range of possibilities has been better understood as a result.     

LASER ARGON DATING AND GEOLOGICAL PROVENANCING OF A STONE AXE FROM THE STONEHENGE ENVIRONS*

The recently-developed laser microprobe ⁴⁰argon-³⁹ argon technique has been used to give a geological date for a rhyolitic tuff stone axe fragment from the Stonehenge environs. The method requires only milligramme-sized samples and gives dates of sufficient accuracy to aid in provenancing artefacts to sources, as well as information on the heating history of samples. The axe sample is of Lower Carboniferous date (341 ± 5 Ma) and this limits possible sources to outcrops within the Scottish Midland Valley and small altered exposures in Dartmoor. X-ray fluorescence analysis of the axe suggests the Scottish Midland Valley as the more likely source. The laser argon analysis also shows that the implement had not been heated in antiquity. Laser argon-argon dating can, therefore, be a useful tool in artefact study.     

Assessing the later prehistoric environmental archaeology and landscape development of the Cetina Valley,Croatia

Abstract

This paper describes preliminary work on the environmental and archaeological potential of the Cetina River Valley, Croatia. Two seasons of fieldwork and assessment have suggested that the valley contains a preserved landscape, much of which is waterlogged. It is clear that there is the potential to address many local and regional questions concerning land use, subsistence and environmental change in an area where previously only limited environmental archaeology has been undertaken. One pressing issue is how to prospect for both cultural and environmental archaeological deposits within this regional landscape. This is especially true in cases where little 'base-line data' exists. This paper outlines the current practice and suggests a number of new approaches to prospecting for environmental 'hotspots'.     

Length of the Cubit

Abstract

From excavations of Bronze Age Levantine sites only rarely has there been archaeobotanical evidence of a specific dietary event which may be seen to reflect the daily life of the people against the background of their farming economy. Even more rare is one that may be examined scientifically for evidence of dried or preserved foodstuffs. An Early Bronze Age archaeobotanical assemblage at Tell es-Sa'idryeh in the Jordan valley has provided an opportunity for such an investigation on food remains burnt by the sudden conflagration of the room in which they were found. Scanning electron microscopic examination and experimental replication of the charred remains have provided new and vital information regarding the role of pickled and stored plant foods within the diet at the site during the period. The results have also contributed towards a revised interpretation of the room containing the plant remains as well as a wider understanding of agricultural practices at the site.     

How Did Mississippians Prepare Maize? The Application of Compound‐Specific Carbon Isotope Analysis to Absorbed Pottery Residues From Several Mississippi Valley Sites

A newly developed compound‐specific stable carbon isotope technique allows the detection of maize in absorbed organic pottery residues. This method was applied to absorbed organic residues from a variety of Mississippi Valley potsherds, and successfully identified maize components. Maize was cooked in sampled vessels less often than expected, but otherwise fitted expected patterns of maize use derived from stable carbon isotope analysis of human bone from the region. Absorbed organic pottery residue analysis is useful in determining pottery use, particularly in concert with other analytical methods.     

COMPLEMENTARY COMPOSITIONAL ANALYSIS OF FORMATIVE PERIOD CERAMICS FROM THE TEOTIHUACAN VALLEY

During the Classic Period, Teotihuacan was an economic centre of central Mexico, but little is known about the development of this system. This paper presents a pilot study in multi‐method analysis of Formative Period (1500/1400 bc –ad 150) ceramics from the Teotihuacan Valley. Pottery was characterized by instrumental neutron activation analysis, laser ablation inductively coupled plasma mass spectrometry, thermal ionization mass spectrometry and petrography. It appears that most pottery was made from local raw materials that differ from later Postclassic materials. Some inter‐village interaction is suggested by stylistic choices, and one settlement had a group of ceramics made from unequivocally distinct raw materials. The study demonstrates how complementary methods can be used to draw greater anthropological meaning from compositional differences.