Late Holocene vegetation and palaeoenvironmental history of the Dunadd area,Argyll, Scotland: chronology of events

This paper focuses on the chronology and environmental significance of a sediment sequence from an alluvial locality in the vicinity of the historic site of Dunadd, Scotland. It outlines the rationale and statistical validity of an age model derived for a sequence of floodplain sediments from which detailed pollen-stratigraphical and plant macrofossil records have been derived. A series of radiocarbon dates are calibrated using a Bayesian modelling approach, the results of which can be refined by incorporating two independent age estimates based on tephra layers of known age. Analysis of the entire floodplain sequence for volcanic glass shards revealed the presence of discrete but geochemically very similar tephra layers within the upper (late Holocene) part of the sequence. Comparison with published geochemical data obtained from Icelandic tephras of historical age indicates strong statistical correlations with the Hekla 1947 AD and Hekla 1510 AD. While the Hekla 1510 AD tephra has previously been reported from sites within Britain and Ireland, the Dunadd sequence affords the first record of the Hekla 1947 AD tephra layer within Scotland. When the ages and stratigraphic positions of both tephra layers are incorporated into the Bayesian age model, an overall centennial to decadal precision for the late Holocene is achieved, with archaeological and environmental transitions discriminated with highest-likelihood age uncertainty ranges of 20–50 years at 95% confidence. The local environmental record is assessed in the light of this new chronological framework: the data support previously reported proposals for two periods of significant climatic deterioration with increased wetness, the first during the early Medieval period and the second during the late 16th and 17th centuries AD.     

Icelandic volcanic ash from the Late-glacial open-air archaeological site of Ahrenshöft LA 58 D, North Germany

Cryptotephra of Icelandic origin from the open-air archaeological site of Ahrenshöft LA 58 D (Kr. Nordfriesland, Schleswig-Holstein), northern Germany overlies a Late-glacial Havelte lithic assemblage, hitherto dated by ¹⁴C and biostratigraphy to the earliest part of the Late-glacial interstadial (GI-1e to GI-1c₃). Peaks in ash shards are observed in two profiles. Major and minor element geochemistry indicates volcanic ash originating in the Katla system. Precise correlation to previously described tephra is uncertain due to overlapping chemical characteristics. The Ahrenshöft ¹⁴C determinations, litho- and bio-stratigraphy encompass a broad age-span for the cryptotephra bearing sediments, from the end of the Allerød to the Preboreal. The most plausible volcanic eruption correlates are the Vedde Ash (∼Younger Dryas), already known from the European mainland, tephra AF555 (late Younger Dryas) and the Suduroy tephra (∼Preboreal/Boreal), hitherto recorded only in the North Atlantic region. These three ash horizons have been dated to, respectively, 12,171 ± 57 yr b2k in the NGRIP ice-core, c.11,500 cal BP, in Scotland and c.8000 cal BP, by radiocarbon from the Faroe Isles. Ongoing research on deposits from the type sites for the tephra layers may in the future differentiate these markers leading to better discrimination of the chemistries and a resolution of this question.     

The Potential for Dating the Old Scatness Site,Shetland, By Optically Stimulated Luminescence

A series of deposits from the agricultural infield of the multiperiod settlement mound, Old Scatness, were investigated for their potential to yield optically stimulated luminescence dates. Luminescence properties of quartz grains were found to vary through the sequence, but dates were successfully obtained from five deposits, including anthropogenic soils, windblown sands and sands within midden deposits. Single‐aliquot equivalent dose measurement was found to be the most appropriate method for dating the deposits. The OSL dates obtained accorded well with the dates provided by archaeological evidence and included the post‐medieval, Iron Age, Bronze Age and Neolithic periods of Shetland, while a substantial midden was dated to the Bronze/Iron Age transition.     

Surplus Production and Marine Resource Use in the North Norwegian Iron Age

The coast of northern Norway was an important dried‐cod production area during the Medieval period. During the Iron Age, marine resources had also played a vital role in the economy of the inhabitants in the region. The increase in marine harvesting post c.AD 600, as substantiated by archaeological finds, suggests that mass maritime goods, in addition to those goods of a prestigious character, were a significant part of the chiefly provisioning system of the Iron Age.     

Pollen analysis in the context of clearance cairns from boreal forests – a reflection of past cultivation and pastoral farming

The former agricultural use of two sites located in the boreal forest of eastern Norway is investigated through pollen analysis. A peat profile was taken from the vicinity in each of two clearance cairn fields where several cairns were analysed for pollen. The pollen samples from the peat profiles give an environmental context for the pollen samples from the clearance cairns, and this combination of samples assists in evaluating the management practices that were in place on the cairn fields during different time periods. In both study areas cultivation layers under the clearance cairns are dated to the Late Roman Iron Age (cal. AD 200–400), while the oldest clearance cairns are dated to the Migration period (cal. AD 400–570), and a second phase of clearance cairn establishment is dated to the Medieval period (cal. AD 1030–1537). Abandonment of the two cairn fields is dated to c. AD 1700. Pioneer trees were a feature on or around the clearance cairn fields during most of the Iron Age, whereas the cairn fields were more open in medieval times. The investigation suggests that cereal cultivation on the clearance cairn fields is difficult to detect in local peat deposits, and that caution is needed when interpreting lack of Cerealia pollen. Management practices on the cairn fields are discussed and a change in management practice is indicated in association with medieval intensification.     

Pre‐Modern Boathouses: a maritime perspective from northern Norway

Most Scandinavian boathouses predating the Reformation (AD 1537) are located in Norway, starting in the Early Iron Age, and a majority are found in the north. Following a critical review of Norwegian boathouse studies from a historical and regional perspective, current research themes in northern Norway are discussed. Boathouses are viewed as multifunctional entities providing insights into the marine economy, social organization, and ethnic interaction between Sami and Norse populations. A more balanced and holistic perspective is needed in which boathouses are seen as a central component of the maritime cultural landscape with uses extending substantially beyond boat storage. © 2012 The Authors     

Can tree-ring chemistry reveal absolute dates for past volcanic eruptions?

Discussion of the significance of volcanically induced impacts on human history, the natural environment, and climate through the Holocene, has frequently stalled because of controversy concerning certain key volcanic eruptions and their precise relationships with the archaeological/environmental record. A major stumbling block in such debates is a failure to obtain precise and accurate dates for many of these key volcanic events. Most existing dates currently float against archaeological, historical, environmental, and climate data. A potential means to resolution lies with tree rings: these can be dated precisely by dendrochronology, are available from a wide range of loci around the world, and can record global climatic influences. It has been suggested that certain growth anomalies in dendrochronological sequences could offer “proxy” absolutely dated records of major, climatically effective, volcanic eruptions. However, this assertion has been widely disputed given the lack of a direct, positive, causal connection. The hypothesis that the required connection may be chemically encoded in individual annual growth rings from dated sequences is explored here both via review of existing literature on dendrochemical techniques, and by LA-ICP-MS chemical analysis of two tree ring sequences. It is concluded that dendrochemistry provides a promising means by which absolute dates may one day be attributed to key volcanic eruptions of pre-modern times.     

Organic residue analysis of Iron Age ceramics from the archaeological site of Kani-zirin,western Iran

Organic residue analysis of potshards excavated from the Iron Age archaeological site of Kani-zirin, western Iran, was achieved with acidified methanol extraction and gas chromatography-mass spectrometry (GC-MS). The GC-MS data showed plant and animal commodities incorporated in the shards. Also, the investigations confirmed the presence of plant resin together with a tartrate ion within a group of the shards, suggesting a probable use of grape-related products. Evidence of resins from the Pinaceae family, as an exotic species in Iran, was evinced in several of the shards.     

Provenance of glass shards in archaeological lime plasters by LA-ICP-MS: implications for the ancient routes from the Gulf of Mexico to Teotihuacan in Central Mexico

We present the chemical characteristics of samples collected from the central courtyard of Teopancazco, a neighbourhood centre in Teotihuacan (Mexico), the most important classic Mesoamerican city. The rhyolitic glass shards used as aggregates have a composition comparable to the glass material sourced from the magmatic system of Altotonga (located along the route to the Gulf Coast). People travelling from the Gulf Coast may have transported the glass shards to Teotihuacan during the Xolalpan phase (350–550 AD). However, the reasons for using glass shards as a construction material remain unknown. These new data confirm the close relationship between inhabitants of Teopancazco and the Gulf Coast already revealed by previous archaeological and archaeometric studies.     

Dating problems in Icelandic archaeology

For many decades tephrochronology has been used as a scientific method for dating archaeological as well as geological remains in Iceland. Recently, parts of the tephrochronology for the eruptions of the famous volcano Hekla have been questioned by the author. This is due to obvious differences in dating results of archaeological artefacts from the valley of Thjórsárdalur in southern Iceland and the current tephrochronological dating of its devastation. While the devastation of the valley has been dated to AD 1104 and is thought to have been caused by a huge eruption of mount Hekla in that year, the artefacts from excavations and stray finds, as well as new ¹⁴C results, show somewhat later 12th‐13th century dates. The paper deals with this obvious discrepancy, which has hitherto been ignored, together with the results of archaeological excavations in 1983–86 at Stóng in Thjórsárdalur; it also gives a critical analysis of the historical methodology of the tephrochronologists.     

Fields,Ritual and Religion: Holistic Approaches to the Rural Landscape in Long‐Term Perspective (c.1500 BC–AD 1086)

This paper discusses the relationship between agricultural activity and ritualized/religious practices in England from the middle Bronze Age to the early medieval period (c.1500 BC–AD 1086). It is written in the context of the ERC‐funded, Oxford‐based ‘English Landscapes and Identities project’ (EngLaId), which involved the compilation of an extensive spatial database of archaeological ‘monuments’, finds and other related data to chart change and continuity during this period. Drawing on this database alongside documentary and onomastic evidence, we analyze the changing relationship between fields, ritual and religion in England. We identify four moments of change, around the start of the middle Bronze Age (c.1500 BC), in the late Bronze Age (c.1150 BC), the late Iron Age (c.150 BC) and the middle/late Anglo‐Saxon period (c.800 AD). However, despite changes in both agricultural and ritual/religious practices during this extensive timeframe, a clear link between them can be observed throughout.     

A Cultural Landscape beyond the Infield/Outfield Categories: An Example from Eastern Norway

In this study from Eastern Norway the relationship between people in the past and their surroundings is discussed, emphasizing the relationship between outfield/infield. In Norwegian folklore, the outfield has been looked upon as a hostile environment. Archaeologists have, more or less consciously, used this as an analogy for the Iron Age and medieval period. The Old Norse worldview as it is presented in the Old Norse literature is discussed and confronted with new archaeological data. The relationship between outfield/infield is examined with a view to going beyond the established categories in order to grasp the diversity of the human past by confronting the notion of infield/outfield with new archaeological information. The division between outfield/infield was probably less marked in the Iron Age and the medieval period. Research concerning these periods should allow scope for both the ethnic variety and the broad variety of occupations that we find in the outfields of Norway.     

Saints and Sinners: a tephrochronology for Late Antique landscape change in Epirus from the eruptive history of Lipari,Aeolian Islands

Assessing the impact of past human activity on landscape change in the Mediterranean has always presented challenges, requiring sound chronological frameworks for observed environmental change. The current research, focused on the environs surrounding the ancient city of Butrint (southern Albania) during Late Antiquity, c. 4th–6th Century AD, establishes a tephra-based chronology for landscape change through the discovery of ash horizons from a little known eruption on the island of Lipari (Aeolian Islands). Recovered glass shards were geochemically fingerprinted to a 6th Century AD event on the island, dated through local archaeological sequences and corroborated by hagiographic evidence. The presence of this marker horizon at Butrint shows a continuation of open water, estuarine conditions throughout Late Antiquity and the Early Medieval period (during which time Butrint ceases to function as an urban centre), disproving the widely held notion of increased soil erosion/deposition as a result of post-Roman landscape degradation. The study also shows that it is following the medieval revival of the town in the 13th Century that marked environmental change takes place, as estuarine areas silt, giving rise to marsh and wetland. The study highlights the importance of using a range of dating techniques to constrain landscape change, while the presence of the 6th Century Lipari tephra in Epirus, derived from an eruptive event larger than previously suspected, provides a useful regional dating marker for future landscape studies.     

Ancient DNA reveals a major genetic change during the transition from hunting economy to reindeer husbandry in northern Scandinavia

The timing and origin of reindeer domestication has been highly debated. Recent molecular analyses show several mitochondrial lineages of domestic reindeer across Eurasia suggesting different origins of Fennoscandian and Siberian domestic reindeer. In order to investigate the origin of domestic Fennoscandian reindeer, we sequenced a mitochondrial control region fragment of 68 ancient reindeer remains from archaeological sites in Finnmark, the major county for extant reindeer husbandry in Norway, spanning from ca. BC 3400 to AD 1800. The majority of the Stone and Iron Age reindeer assemblages in Finnmark are from settlements in the eastern part of the county, in the Varangerfjord area. The reindeer remains from these settlements show affiliation to the large and complex Beringian haplotype cluster, found in extant reindeer from the Kola Peninsula to north-eastern Russia. A distinct haplotype shift is observed in the late medieval period, when the typical haplotype signatures of extant domestic Fennoscandian reindeer appeared in coastal regions of both eastern and western Finnmark. These haplotypes were not found among the Stone and Iron Age wild reindeer samples of Finnmark, suggesting that this population was not ancestral to extant domestic reindeer of Fennoscandia.     

Archaeomagnetic Dating of Pyrotechnological Contexts: a Case Study for Copper Smelting Sites in the Central Timna Valley,Israel

This study is focused on establishing age constraints for several copper slag deposits at the centre of the Timna Valley (Israel) via reconstruction of their ancient geomagnetic intensities as recorded by the individual slag samples at the time of their formation. The results show a correlation between the location of the slag deposits (labelled as individual ‘mounds’ in our survey) and their inferred ages, reflecting varying socio‐economic and political dynamics in the region. While the slag mounds found at the unprotected foothills represent a variety of dates (mostly Early Islamic), the slag mounds on the hilltops are chronologically constrained to the early Iron Age (late 11th to 10th centuries bce ), supporting the idea for a need for protection during this period. Furthermore, in comparing the new data with previous archaeomagnetic studies from Timna, we can assert the existence of simultaneous copper production at the archaeological Sites 30, 30a and 34. This gives further support to the claim of intense smelting in the central Timna Valley during the early Iron Age. Finally, this project demonstrates the potential of archaeomagnetic experiments to provide chronological insights, and their particular advantage in addressing pyrotechnology‐related cases.     

Building a tephrostratigraphic framework for the Paleolithic of Central Anatolia,Turkey

The Central Anatolian Volcanic Province (CAVP) in Turkey preserves widespread deposits of Quaternary tephra, presently associated with a small but growing number of Paleolithic archaeological sites. We use multivariate analyses of the abundances of a suite of nine major and minor element oxides determined by electron probe microanalysis. From these data, we construct a classificatory model for correlating distal tephra to one of five volcanic edifices or eruptive phases within the CAVP. Application of this model to distal deposits of primary tephra-fall and reworked tuffaceous sediments from the archaeological sites of Körkuyu and Kaletepe Deresi 3 indicates Late to possibly Early Pleistocene ages for the artifact assemblages there, and provides a fundamental tephrostratigraphic framework to examine spatial and temporal variation in hominin behavior comparable to that of other regions, such as eastern Africa.     

Post-Roman crop production and processing: Archaeological evidence from Goldthorpe,South Yorkshire

The remains of a ditched field system dating from the late Iron Age to the early post-Roman period, and two associated corn drying ovens (dating to the 5th–6th centuries AD) were revealed during archaeological excavations at Goldthorpe, South Yorkshire. The site was excavated during 2012 and 2013, during which bulk environmental samples were taken in order to retrieve any surviving botanical remains from deposits associated with the corn drying ovens, and other features across the excavated area. Early post-Roman occupation is under-represented in the archaeological record, especially in northern England, as such human activity and subsistence during this period are currently not well understood. This paper combines evidence for the field system, the physical remains of the corn drying ovens and their associated botanical remains to further understand early post-Roman change and continuity in landscape use and crop production and processing practices.     

Agricultural and household activities in Vestfold,Southeast Norway,as illustrated by pollen data and the charred remains of crops and wild plants

This paper presents and interprets two data sets from Vestfold, Southeast Norway: the pollen record is from a small lake basin, isolated from the sea in Mid Mesolithic (8100–6400 cal BC), and with a record of sediment deposition up to recent time. Charred plant remains from six settlement sites ranging in date from the Late Neolithic (2400–1800 cal BC) to the Merovingian Period (cal AD 570–800). Soil from archaeological contexts that was recovered from several prehistoric settlement features (two- and three-aisled houses, a rock shelter and a pit) has also been investigated. The number and concentrations of identifiable charred macro remains are low from all features except one, but the records contribute to the interpretation of agriculture and wild plant use. Carbonised cereals dated to the Late Neolithic/Early Bronze Age are reported from a two-aisled house. Naked barley was the main cereal identified and a few weed seeds were found with the cereal grains. In a rock shelter nearby, cereals and seeds of flax were found, demonstrating cultivation in the Late Bronze Age. Pollen of ribwort plantain recorded in lake deposits in Nordbytjern, 0·5?km to the southwest, also indicates agricultural activity in the southern part of Vestfold during the Late Bronze Age. Archaeobotanical samples from Early Iron Age houses contained low concentrations of carbonised cereal remains, mainly hulled barley, but also wheat and oat. Seeds/fruits of weeds, plants of moist/wet habitats and grasses increase in abundance from the end of Roman Period. The high concentration of hulled barley found in a pit at the site of Ringdal 13 confirms that hulled barley was a cereal used in the Iron Age. Throughout the Iron Age, cereal pollen has a continuous curve in the Nordbytjern pollen diagram, demonstrating the significance of cereal cultivation in Vestfold. Flax was also cultivated in the vicinity of and probably processed in Nordbytjern. Large numbers of rush seeds and sedge nutlets indicate a possible involvement in basketry and cordage making and/or as animal fodder.     

Recent Excavation and Recording at the New Neolithic Rock Art Site of Vallée Aux Noirs,Buthiers (Seine‐et‐Marne,France)

Following the exceptional discovery of Neolithic engravings on a boulder at Vallée aux Noirs in the Fontainebleau forest, south of Paris, an excavation trench was opened in order to access the buried part of the decorated rock panel and explore the stratigraphic context of the artwork. A palaeosol was found two metres below the modern ground level, underneath multiple layers of sterile sandy soil forming a very compact sequence from which only one archaeological artefact was recovered – an Iron Age fibula (c.200–300 BC). Dating of the palaeosol was attempted through two different methods: AMS dates from charcoal suggest a significant span from the Early Bronze Age to the Iron Age, while two more consistent OSL dates point to formation of the palaeosol during the Late Neolithic (3500–3000 cal BC). The entire engraved rock surface (16 m²), including its buried part, was fully recorded. Four main semiotic groups were identified: a typical fifth‐millennium crook‐hafted axe with a ring, two boats with steering oars, and a central, very tall human figure dominating the composition from its 3.5‐metre height.     

TWENTY YEARS AFTER “ABSOLUTE CHRONOLOGY: ARCHAEOLOGICAL EUROPE 2500‐500 BC” NEW DATA ON ITALIAN PROTOHISTORY

The article is a tribute to the pioneering role of Klavs Randsborg in the early Nineties in search for a new comprehensive chronology for Italian and European prehistory based on a combination of dendrodates with C14 dates. The debate of the last 25 years on this matter is presented, demonstrating a scholarly split, in particular in Italy. At the same time, an Italian peculiarity, the presence of layers of volcanic eruptions mixed with archaeological deposits is proposed as a sort of meeting ground for opponents and proponents of absolute chronology and a way to pair it with known cultural phenomena.