Lapp Cairns as a Source on Metal Period Settlement in the Inland Regions of Finland 1

This article presents an overview of the history of research of the so-called Lapp cairns. On the basis of the limited find material from these cairns, they are assumed to be from the archaeologically poor Iron Age period of the Finnish inland regions. The situation is similar throughout large wilderness areas in northern Europe, and in Norway it has sometimes been called the "findless period" ( den funntomme perioden ). Six so-called Lapp cairns excavated in central Finland in the 1980s and 1990s are discussed in detail. Three of the cairns contained sufficient amounts of burnt bone for testing the new AMS dating method of burnt bone based on crystalline carbonate on Finnish material. As far as is known, these are the first datings of burnt bone in the Finnish material. The oldest Lapp cairn, cairn no. 1 at Pyykkisaari in Viitasaari, is from the end of the Stone Age, and the other two are from the Early Metal Period. This article briefly discusses problems related to defining Lapp cairns, their age and function. The early dating of the Lapp cairns gives new topicality to the prevailing conception that the Lapp cairns resulted from the influence of the cairns of the coastal Bronze Age. The burnt bone from the oldest cairn included the remains of seal. It is possible that these fragments of bone represent relict ringed seal that lived in Lake Keitele in the past.     

Identification of the first reported Lapita cremation in the Pacific Islands using archaeological,forensic and contemporary burning evidence

Burnt human remains excavated from a scoop feature from a cemetery at Teouma, Vanuatu in the western Pacific (∼2850 BP) were examined to assess the nature of the deposit. Possible scenarios explaining the reason the bone was burnt and interred were assessed using osteological signatures taken from archaeological, experimental, and forensic studies. The methodology of the study included recording color change, types of bone distortion, and element representation in conjunction with archaeological evidence. The burnt and fragmented human bone (n = 430, fragments weighing 620 g) represents a single adult individual. Macroscopic evidence from the bone indicates the body had been fleshed or fresh at the time of burning and element representation follows a similar pattern to other burials excavated from the site. Excluding burning, there was no evidence of human modification to the bone such as cut marks, percussion pits or peri mortem trauma suggestive of cannibalism. The archaeological evidence from the site indicates that the body had not been burnt in the place the remains were subsequently discovered. The combined macroscopic and archaeological evidence strongly suggests that the human bone was burnt as a result of a deliberate cremation of an individual. If a conclusion of deliberate cremation is accepted, this research represents the first case of a Lapita period cremation and demonstrates how a combination of methods can explain the nature of an archaeological deposit of burnt human bone when the cause is not otherwise apparent.     

山东青州香山汉墓出土西汉彩绘陶器腐蚀病害及其机理分析

为保护山东青州香山汉墓出土大量精美的西汉彩绘陶器,针对出土器物的腐蚀病害现状,运用X-射线衍射分析和偏光显微分析等技术手段,对出土彩绘陶器表面的白色盐分产物和陶片本体进行了检测。检测结果表明,表面盐分产物成分为碳酸钙和硫酸钙;该批陶器烧制材料主要由砂屑及粘土构成,所用粘土为岩土矿长期风化的积聚产物;制作工艺以模为主,模、塑结合;并结合以上的几种分析结果对其腐蚀病害及产生机理进行了论述,发现陶器表面风化是云母类矿物内部化学键断裂以及保存环境中的可溶盐的破坏应力所致。本研究结果为彩绘陶器保护修复提供了科学依据。     

The ‘invisible’ hearths: a contribution to the discernment of Mesolithic non-structured surface hearths

In the cover sand area of the NW European plain very little is known about fireplaces within Mesolithic settlement areas. Yet the frequent occurrence of burnt ecofacts (hazelnut shells and bone) and artefacts (flint and quartzite) clearly indicates the presence of (surface) hearths on nearly every campsite. Most of these hearths are non-structured and are thus barely visible in the soil. Furthermore in most spatial studies minimal effort has been made to locate these ‘invisible’ hearths as accurately as possible. This paper discusses the potential and modalities of detailed spatial analysis of burnt artefacts and ecofacts, using recently obtained archaeological and experimental evidences. It is concluded that such an analysis can offer interesting insights into the dynamics of Mesolithic hearths.     

Characterization and textural analysis of Middle Bronze Age Transdanubian inlaid wares of the Encrusted Pottery Culture,Hungary: a preliminary study

Inlaid ceramics belonging to the Encrusted Pottery Culture and dated to the Middle Bronze Age (2000–1500 BC) are highly distinctive vessels with complex decorative motifs found in large numbers in the Transdanubia region of Hungary. Despite this considerable corpus of material there has been little systematic investigation of the composition of the inlays. Micro-analysis of Transdanubian inlaid wares by X-ray diffraction (XRD), micro-Fourier transform infrared microscopy (FT-IR), and scanning electron microscopy (SEM) provides new compositional, structural and textural information on the inlays. In contrast to common statements in the literature regarding the materials used to make inlays, these new data show that the majority of inlays are composed of hydroxyapatite (bone) that was previously ashed, although some of the inlays are composed of calcium carbonate. Additional compositional and textural variation in the bone inlays suggests that bone material from different skeletal elements and/or of different age may have been used, and that contrasting recipes for inlay preparation were employed during fabrication. These results suggest that the production of inlaid vessels of the Encrusted Pottery Culture was more complex than has hitherto been thought.     

ON THE INTENT TO MAKE CRAMP: AN INTERPRETATION OF VITREOUS SEAWEED CREMATION 'WASTE' FROM PREHISTORIC BURIAL SITES IN ORKNEY, SCOTLAND

Summary.   Vitreous slag-like material, known as 'cramp', from prehistoric cremation burial sites in Orkney is, apart from cremated bone, one of the recurrent remains found within or around Bronze Age burials. Although the suggestion that cramp was formed by the fusing of sand attached to dry seaweed while it was being burnt was first proposed in the 1930s, there has never been a consideration of seaweed's contribution to cremation other than as a potential fuel. Scientific analyses presented in this paper corroborate the use of seaweed. It is suggested that cramp may have been deliberately produced to act as an efficient collector of shattered bone which otherwise could have been lost during the cremation. Far from being a 'waste', cramp could well have been another form of 'human-remains' in its own right.     

CLAY RESOURCES AND TECHNICAL CHOICES FOR NEOLITHIC POTTERY (CHALAIN,JURA, FRANCE): CHEMICAL,MINERALOGICAL AND GRAIN‐SIZE ANALYSES*

Many authors have considered pottery manufacturing constraints and sociocultural elements as factors in change in past civilizations over time. The main issue of this research is to better understand the reasons for changes, or choices, in pottery raw materials. The very precise and detailed stratigraphy and cultural succession of occupations is based on dendrochronological data from the lake‐dwelling sites of Chalain (Jura, France). Petrographic, palaeontological and chemical analyses were used to determine the nature and origins of the raw materials used by the Neolithic potters. Stratigraphy and dendrochronological data were used to reconstruct in detail the evolution dynamics of fabric changes. Several raw material sources were identified for many of the pottery groups. Each of them was sampled for qualitative experimental tests of pottery forming. The experimental results show a high variability between the sediments tested. This variability was quantitatively estimated by XRF, XRD, the Rietveld method, calcium carbonate quantification and laser grain‐size analyses of matrices, indirect measures of plasticity. These analytical results allow a better understanding of the differences observed in the experimental tests. On the basis of these experimental and analytical results, changing parameters such as pottery manufacturing constraints, mineralogical characteristics of raw materials and sociocultural factors are considered. In conclusion, all the social and technical parameters, in each archaeological context, must be taken into account for a better understanding of the changes occurring throughout the chronological sequence.     

A bone grease processing station at the Mitchell Prehistoric Indian Village: Archaeological evidence for the exploitation of bone fats

Recent excavations at the Mitchell Prehistoric Indian Village, an Initial Middle Missouri site in Mitchell, South Dakota have revealed a large, clay-lined feature filled with fractured and fragmented bison bones. Fracture and fragmentation analysis, along with taphonomic evidence, suggests that the bones preserved within the feature represent evidence of prehistoric bone marrow and bone grease exploitation. Further, the character of the feature suggests that it served as a bone grease processing station. Bone fat exploitation is an activity that is frequently cited as a causal explanation for the nature of many fractured and fragmented bone assemblages in prehistory, and zooarchaeological assemblages have frequently been studied as evidence of bone fat exploitation. The Mitchell example provides some of the first direct, in-situ archaeological evidence of a bone grease processing feature, and this interpretation is sustained by substantial analytical evidence suggesting bone fat exploitation. This new evidence provides a clearer concept of the nature of bone fat exploitation in prehistory as well as an indication of the scale and degree to which bone grease exploitation occurred at the Mitchell site. Finally, this research demonstrates the importance of careful zooarchaeological and taphonomic analysis for the interpretation of both artifactual remains as well as archaeological features.     

Kinetic effect of carbonic anhydrase enzyme on the carbonation reaction of lime mortar

The effect of carbonic anhydrase enzyme on the precipitation kinetics and phase transformations of calcium carbonate, and on the strength development of lime mortars has been investigated with saturated lime solutions, lime pastes and lime mortars under atmospheric conditions. The results clearly show that carbonic anhydrase catalyzes the reaction between carbon dioxide and aqueous lime, and increases the rate of calcium carbonate crystallization, the yield of the carbonation reaction and mortar strength at early ages. This is most likely a kinetic effect associated with the increased rate of carbonate ions supply to the solution by the enzyme. In addition, this enzyme favors the formation of stable calcite and significantly modifies its morphology by developing new crystal faces. These results suggest a novel approach for accelerating the hardening of lime mortars using carbonic anhydrase enzyme, which may offer a potentially novel approach with significant benefits on the applications of lime mortars in architectural heritage conservation as well as in construction.     

Quantifying histological changes in archaeological bones using BSE–SEM image analysis

Recent years have seen rapid developments in the understanding of diagenetic changes to archaeological bones. In particular, the degradation or preservation of proteins and other biomolecules has been explored using an increasingly sophisticated battery of analytical techniques. Problems remain, however, in correlating these parameters with physical changes to bone that may be observed microscopically. This is due, in part, to the problems in reproducibly quantifying histological changes to archaeological bone. This paper introduces a novel method for the accurate quantification of these changes employing image analysis of SEM images. Self–consistency of results was tested using measurements of total calcium content at different magnifications. The term ‘bioerosion index’ is suggested for the measured parameter.     

A new approach to study the fuel used in hearths by hunter-gatherers at the Upper Palaeolithic site of Abri Pataud (Dordogne,France)

The fuel used in hearths in the Upper Palaeolithic period and the management of this fuel have long given rise to questions on intentional or opportunistic human comportment. To understand how fuel was managed during the Aurignacian and Gravettian cultures, hearth samples from the French site of Abri Pataud (ca. 34–20 kyr BP) were collected. An image analysis method for the automated quantification of burnt particles from macroscopic-to-microscopic sediment fractions was developed, and the results obtained using this method were compared with the palaeoenvironmental data available close to the site. At Abri Pataud, the use of bones was dominant during the Pleniglacial, suggesting an intentional practice. However, environmental pressures could have influenced the fuel management practices of the hunter-gatherers, even if the dualistic relationship between the availability of firewood and the use of bone in hearths must be considered. Thus, burnt particle quantification provides more than just an observation of burnt macroremains in hearths: it relates to fundamental information on human behavior.     

Thermoluminescence dating

Over the last few years the Nordic Laboratory for Thermoluminescence (TL) Dating has obtained TL dates for a considerable number of archaeological samples, ceramics, bricks, burnt clay and burnt stones from the Nordic countries. The majority of TL dates have been consistent and in agreement with other dating evidence. Discrepancies caused primarily by excessive short‐term fading of the latent TL signal were encountered in a few cases. A procedure for eliminating errors caused by short‐term fading is described. A brief discussion of the sources of error in TL dating is given. Finally, results obtained by TL are compared with those obtained by radiocarbon for a number of sites.     

Pb and Sr Isotopes and the Provenance of the Painting Materials of Cornelius Krieghoff in 19th‐Century Canada

Radiogenic lead and strontium isotope data are presented for lead‐ and calcium carbonate/barium sulphate‐containing paint and ground samples from 15 paintings, executed between 1844 and 1871, by 19th‐century Canadian artist Cornelius Krieghoff. Like many artists of this era, Krieghoff used lead‐based pigments such as lead white, chrome yellow and Naples yellow, and extenders such as calcium carbonate and barium sulphate. The lead isotope analyses of the majority of these pigments are consistent with the isotopic compositions of lead mined from European lead deposits in England and/or Germany. However, three samples from Krieghoff's early career yield lead isotope compositions that are much more radiogenic than European sources. The lead isotope compositions of these three samples are consistent with the addition of a more radiogenic lead component that is similar to the lead derived from North American lead deposits in Missouri and Illinois (Mississippi Valley Pb–Zn type deposits). The strontium isotope compositions of the extenders suggest that the raw materials for calcium carbonate or barium sulphate extenders were largely derived from Palaeozoic to modern‐day marine environments. This study shows that pigments manufactured from North American lead were being incorporated into Canadian paintings as early as 1844.     

POST-MIDDENISM: DEPOSITIONAL HISTORIES ON LATER BRONZE AGE SETTLEMENTS AT BROOM, BEDFORDSHIRE

Summary.   This paper considers recent discussions of 'deliberate', 'formal', 'placed', 'special', 'structured', or 'token' deposits on later prehistoric settlements in Britain. It argues that while these concepts have certainly been very important in raising and forefronting the interpretative possibilities that depositional practices might offer, the idea of structured deposition has, at times, been adopted and applied somewhat simplistically. In such instances, exploration of the potential complexity and interpretative scope of depositional histories on later prehistoric settlements has been substantially curtailed. Current understandings of depositional practices involving pottery and burnt human bone are examined, and alternative interpretations offered, through a case study of the evidence recovered from a series of later Bronze Age settlements at Broom Quarry, Bedfordshire.     

Experimental effects of bone size and temperature on bone diagenesis

In the ground, bone undergoes chemical and physical changes which affect its preservation. This fact has important implications for dating and other analytical procedures involving bone, as well as faunal analysis where differential preservation of bones of different species may affect conclusions regarding the relative significance of an animal to the economy of a given society. The diagenic processes in bone range from minor changes in the bone protein to complete structural and chemical breakdown.Using fresh cow bone, we conducted laboratory experiments which simulate the effect of temperature and bone size on the rate and nature of bone disintegration in archaeological sites. Temperature influences the rate of chemical change, and bone size and density affect the accessibility of the molecular constituents of bone to extrinsic chemical reactions. These findings clarify the importance of two well-known concepts in bone taphonomy. (1) The rate of chemical breakdown in bone tissues is related to the proximity of a given unit of tissue to the bone surface. This means that, in archaeological bone samples, tissue near the surface may be different chemically from tissue away from the surface and great care is necessary in choosing and preparing bone samples for analytical procedures. (2) In general, small bones are not as well preserved as large bones, therefore small animals are likely to be underrepresented in faunal assemblages.     

Chronostratigraphy of an Eroding Complex Atlantic Round House,Baile Sear,Scotland

A high-resolution chronostratigraphy has been established for an eroding Atlantic round house at Sloc Sàbhaidh (North Uist, Scotland), combining detailed OSL profiling and dating of sediments encompassing the main bracketing events associated with the monument, radiocarbon AMS dates on bone recovered from excavated features and fills within it, and TL dates on pottery and burnt clay. Concordant OSL and radiocarbon evidence place construction of the wheelhouse in the first to second centuries AD, contemporary with dates from the primary occupation. Beneath the wheelhouse, clay deposits containing burnt material, attest to cultural activity in vicinity to the monument in the preceding second to first centuries BC. At a later date, the southern wall collapsed, was rebuilt, and the interior spaces to the monument re-structured. The chronology for the later horizons identified from the sediment luminescence dates extends to the second half of the first millennium AD, which goes beyond the range of the radiocarbon dates obtained. The data from ceramics encompass both periods. The juxtaposition of the dating evidence is discussed relative to short and longer chronologies for this Iron Age monument. Corollaries of this research are the implications that based on the long chronology, some of the ecofacts (bone) appear to be residual, and that the temporal duration of Hebridean Coarse Ware may extend into the second half of the first millennium AD.     

SOUTHERN ASIA'S OLDEST INCENDIARY MISSILE?*

A small burnt ball was recovered in 1995 from the basal fills of a ditch surrounding the Bala Hisar, or High Fort, of Charsadda, Pakistan. Associated by Sir Mortimer Wheeler with the siege of the ancient site by Alexander the Great in 327 bce , the ditch forms part of the city's defensive circuit. Using geochemical and microscopic techniques (X‐ray diffraction, micro‐FTIR, SEM and GC–MS) the ball is identified as an artificial composite of mineral (mostly barite) and flammable resinous organic matter originating from conifers from the Podocarpaceae, Araucariaceae and Cupressaceae. The physical and chemical nature of the find suggests that the ball was ignited in a fire, although whether this was a deliberate or accidental occurrence is impossible to establish. The analytical data, combined with the archaeological context of the find, leads us to evaluate whether the find represents southern Asia's earliest incendiary missile.     

The ‘natures’ of planning: evolving conceptualizations of nature as expressed in urban planning theory and practice

Over the course of the past century, the idea of nature in the city has become increasingly intricate, evolving from being viewed as a refuge separate from the city to being understood as an essential component of dynamic urban systems. As such, attempts are currently being made to ‘re-nature’ cities to support local and global ecosystems, increase human well-being and address environmental issues such as climate change. While the literature has examined changing assumptions about society–nature relationships in planning, a dearth of knowledge exists relating to the changing conceptualization of nature’s relationship with the ‘city’ and how this has influenced how urban planning with respect to ‘nature’ has evolved in both theory ‘and’ practice. In this paper, we address this lacuna by tracing the history of the entwined relationship between nature and city planning. The conceptual framework developed from this review is subsequently employed as an analytical lens through which to investigate an illustrative case study of planning for nature in Dublin City, Ireland. The paper concludes by reflecting on how exploring the natures of planning provides scope for greater critical attention to what we do as planners when we seek to address the challenge of safeguarding nature through policy.     

Assessing the contribution of integrated geoarchaeological approaches to understand the formation and function of burnt mounds: the example of Hoppenwood Bank,North Northumberland

Burnt mounds are detrital mounds of fire-cracked rock and charcoal, deposited as the result of a prehistoric process for heating water. They are the most numerous prehistoric monument found across Britain and Ireland and have traditionally been difficult to study due to their apparent homogeneity and lack of distinguishing features. This study seeks to change the discussion surrounding burnt mounds and evaluates a large early- to mid-Bronze Age burnt mound at Hoppenwood Bank in Northumberland using an integrated microarchaeological methodology, the contribution of which is assessed. A combination of micromorphology and silicic microfossil analyses indicates that these deposits are complex and multifaceted, showing variability in their depositional sequences, microcomponents, and taphonomy. The identification of hiatuses in deposition and desiccation of surfaces beneath the burnt mound indicate that the accumulation of material may have been periodic or seasonal, and dating suggests that sequential deposition may have spanned 500–700 years. Taphonomic issues identified at the microscale highlight concerns for the interpretation of microfossils. This paper considers the implications of these observations and argues that burnt mounds should be viewed as caches of environmental and sediment-based data, indicative of sequences within landscape use-patterns and human-environment interactions.     

A rapid INAA method to characterize Egyptian ceramics

A rapid cost-effective instrumental neutron activation analysis method has been developed to characterize Egyptian ceramics. Using this approach, it is possible for one person to take representative samplings from 25 sherds, analyse them and tabulate the data within an 8 h working day. This in turn means that successive analytical samplings of available materials may be made on the basis of the suite of sherds already analysed. The efficacy of such an analytical procedure has been tested using a large number of sherds from the collection of the Egyptian Department of the Royal Ontario Museum. The results indicate that elements producing short-lived isotopes may be used to differentiate sherds made from Nile alluvium from sherds formed from chemically different clay sources and from mixtures of Nile alluvium and clays or other materials.