Preservation of fungi in archaeological charcoal

During the analysis of wood charcoal remains from archaeological sites, it is common to find different microorganisms and different forms of degradation present in the plant tissue. However, one may encounter difficulties when attempting to identify these microorganisms and determine when their attack occurred. This paper focuses on preservation aspects related to the microorganisms in wood and demonstrates the structural changes that take place in different types of decayed wood after it was converted into charcoal. The study seeks to determine whether the microbial attack found in archaeological woods took place before the burning of the wood or after. Burning experiments were conducted using wood that had been decayed by various types of fungi including white-rot, brown-rot, and soft-rot. The laboratory burnt wood samples showed decay patterns that were comparable to those observed in archaeological charcoal samples, indicating that signs of fungal infestation and features of decay can be preserved after burning with micromorphological details of mycelium and cell wall attack evident. This indication may provide important information related to the gathering of deadwood as fuelwood. In addition, examples of decayed wood preserved in archaeological charcoal assemblages are described. Their relationship to the archaeological context and environmental conditions may suggest different interpretative models concerning wood management strategies applied by past societies.     

Foodways and community at the Late Mississippian site of Parchman Place

ABSTRACT

Communal eating events or feasts were important activities associated with the founding and maintenance of Mississippian communities in the southeastern United States. More often than not, however, archaeological deposits of food refuse are interpreted along a spectrum, with household-level consumption at one end and community-wide feasting at the other. Here, we draw attention to the important ways that domestic food practices contributed to social events and processes at the community level. We examine ceramic, botanical, and faunal assemblages from two fourteenth-century contexts at Parchman Place (22CO511), a Late Mississippi period site in the northern Yazoo Basin. For the earlier deposit, everyday ceramics and plant foods combined with high-utility deer portions and exotic birds suggest potluck-style feasting meant to bring people together in the context of establishing a community in place. We interpret the later deposit, with its pure ash matrix, focus on serving wares, and purposeful disposal of edible maize and animal remains, as the result of activities related to maize harvest ceremonialism. Both practices suggest that household contributions in general and disposal of domestic food refuse in particular are critical yet underappreciated venues for creating and maintaining community ties in the Mississippian Southeast.     

The use of wood in funerary pyres: random gathering or special selection of species? Case study of three necropolises from Poland

In this study, the analysis of charcoal remains from three prehistoric necropolises is presented. This botanical material formed part of funerary pyres and thus represents purposely gathered wood used for cremation ceremonies. Therefore, its anthracological analysis may indicate a special selection of wood, which may be a source of palaeoethnographic information about past rituals. However, a question remains as to whether or not the charcoal assemblages that originated from graves may also provide some palaeoecological information. In order to test both hypotheses, analysis of three Polish necropolises dating to the Bronze and the Iron Age were performed. In all charcoal assemblages, a taxonomic diversity among charcoals was detected, which may suggest that the wood was collected based on availability. This may also be inferred after observing that the presence of the most ubiquitous and frequently found taxa may be strongly correlated with present-day vegetation growing in the vicinity of the necropolises.     

Bio-archaeological evidence of olive tree (Olea europaea L.) irrigation during the Middle Ages in Southern France and North Eastern Spain

Quantitative eco-anatomical analyses were carried out on charred wood from modern olive trees (Olea europaea L.) in order to quantify influence of irrigation on wood characters and to detect irrigated olive specimens among charcoal assemblages dating back to the Middle Ages.     

Ritual practices and collective consumption of animal products at the Iron Age rural settlement of Mas Castellar de Pontós (Girona,Spain) (5th–4th centuries BC)

Abstract

Animals have played an important role in certain ceremonies or rites in the past. During such activities, animals may have been alive, dead or been used as raw material. The disposal of detritus from these practices can lead to the formation of faunal assemblages with a particular taxonomic and anatomic composition. At the Iron Age ‘Mas Castellar de Pontós’ site (Girona, Spain), associations of archaeological materials excavated from Pit feature FS362 were suggestive of deposits arising from collective ceremonial consumption. Analysis of the 1309 mammal remains recovered from this feature is used to determine the nature and dynamics of the ceremony. At the same time, the relationship of these faunal remains with the other archaeological materials recovered in the pit will allow light to be shed on the significance and importance of these ceremonies in the framework of the social and political relations that governed the life of the inhabitants of this settlement.     

Timber exploitation during the 5th–3rd millennia BCE at Arslantepe (Malatya,Turkey): environmental constraints and cultural choices

A considerable amount of charcoal remains from the archaeological site of Arslantepe (Eastern Anatolia) has been analysed. The anthracological assemblage comes from seven archaeological periods, ranging from the Late Chalcolithic 1–2 (mid-5th millennium BCE) to the Early Bronze Age III (late 3rd millennium BCE). The woody taxa exploited by the local communities appeared to have only minor changes throughout the investigated periods. For the evaluation of wood use practices, charcoal was chronologically grouped according to depositional context. The categories of depositional context identified differentiate between the uses of wood for structural parts of buildings, object manufacture, fuel, refuse, and wood found in outdoor areas or in burial contexts. Communities at Arslantepe, characterized by different cultural and socio-economic traits, appeared overall to select timber depending on its use: hydrophilous plants prevail in building material, with the exception of the 2900–2500 BCE period when environmental constraints probably motivate the dominance of woodland-steppe plants. The differential occurrence of taxa in the diverse depositional contexts highlighted cases of under/overestimation of remains, in particular in relation to the woods for construction. Finally, taxa have been attributed to different ecological groups. The interpretation of results and the comparison with other available palaeoenvironmental data point out that climatic factors play only a secondary role in the choice of wood exploitation in the area. Human choice may vary even with constant environmental records.     

Quantifying woodland resource usage and selection from Neolithic to post Mediaeval times in the Irish Midlands

The antiquity and context (site or feature type) are the two principal factors that act as a framework for interpreting charcoal and wood data from archaeological sites in the recreation of past woodland environments. This research addresses these parameters through the analysis of over 18,000 charcoal fragments from 57 archaeological excavations carried out along a 61?km road scheme in the midland region of Ireland. Observations on spatial vegetation dynamics and woodland resource patterns are also reported on. The data were analysed through percentage frequency and multivariate analyses. The results reveal woodland resource usage in terms of wood types selected for use as fuel or as structural wood as well as patterns of change and variability in taxonomic composition in relation to site types, feature types and time periods. Selection was found to be low in prehistoric times and in particular at burnt mound sites/fulachta fiadh but became increasingly important as time progressed. This has important implications when charcoal from archaeological settings is used in environmental reconstructions.     

Archaeological Identification of Stone Fish-weirs Mentioned to Freycinet in 1819 on the Island of Guam

ABSTRACT

In 1819, when the French corvette L'Uranie anchored off Apra Harbor in the Micronesian Island of Guam, its captain Louis Claude de Freycinet was told of the former use there of stone fish-weirs. This reference has long puzzled archaeologists and historians who assumed Freycinet was misinformed or such features were no longer in existence, given the frequent typhoons that affect the region. Recent archaeological surveys of Apra Harbor tidal flats, however, have identified low-walled coral enclosures at the mouth of two freshwater estuaries. At first. these were hypothesised to have been built to foster shellfish production under the Japanese occupation of Guam during World War II. However, controlled excavation of small sites adjacent to one of these complexes yielded late Latte Period pottery and wood charcoal radiocarbon dated to AD 1645–1725. This historic timeframe is within the plausible memory of the oldest generation of Freycinet's informants. These archaeological findings, combined with interviews, research of historical accounts and ethnographic comparisons of fishing practices in Micronesia and further afield suggest that Chamorro fishermen may have used the weirs to feed local populations and visiting sailors during the seasonal arrival of the Manila galleons for a long period after Ferdinand Magellan's visit in 1521. This conclusion has practical and contemporary implications for Chamorro today.     

The shrinkage cracks and the diameter of the log: a experimental approach toward fuel management by Patagonian hunter-gatherer (Paredón Lanfré site. Río Negro Province,Argentin)

The anthracological study of Paredón Lanfré (Patagonia, Argentina) highlights the presence of radial cracks with a marked difference between the percentage of affected coniferous charcoal (Fitzroya cupressoides and Austrocedrus chilensis) compared to the angiosperms (e.g., Nothofagus antarctica and Nothofagus dombeyi). The aim of this work was to obtain experimental comparison data from two Patagonian conifers to understand the prehistoric combustion behavior of the region. These results showed a discrepancy between the average of shrinkage cracks made with green wood fires and those with dry wood fires. The study of the caliber of charcoal recovered from Paredón Lanfré showed significant differences between the samples of F. cupressoides and A. chilensis. The calculation of correlation between size and shrinkage cracks suggests for both species that the size is not related to the number of registered shrinkage cracks in charcoal studied. Therefore, the gauge would not be a variable which could influence the presence of shrinkage cracks in the charcoal. Consequently, the difference of average shrinkage cracks between the two specimens may result from another variable that remains to be identified.     

Seasoned or green? Radial cracks analysis as a method for identifying the use of green wood as fuel in archaeological charcoal

For several years, sociological questions have been central in anthracology. The development of socio-economic approaches based on the recognition of anatomical signatures in wood has made it possible to focus on topics related to firewood use and its management. The presence of radial cracks (RC) on archaeological charcoal is generally interpreted as the result of the burning of green wood. The present study proposes a verification of this theory by the experimental combustion of seasoned and green wood of Scots Pine (Pinus sylvestris L.). Experimenting with this species was a research priority since it was the dominant taxon (representing 80-100% of the charcoal remains) identified in the Palaeolithic European sites under consideration.The experiments were conducted using two different methods: (i) inside a muffle furnace that allowed us to control the combustions, but in which the combustion process is quite different from most archaeological situations and (ii) in an open fireplace, less controllable but closer to the archaeological conditions. The systematic quantification of the number, length and width of the radial cracks (RC) measured on the transversal sections of the experimental samples demonstrates that (i) radial cracks occur independently of the moisture content of the wood before the combustion (on green and seasoned wood); (ii) however, the average number of radial cracks (RC/cm²) allows distinguishing seasoned from green wood; (iii) in the muffle furnace, the size of the RC appeared to be a good criterion for discriminating seasoned and green wood, but this observation was not confirmed by the open-air combustions. Our results clearly show that the appearance of radial cracks is not diagnostic of the combustion of green wood. Nevertheless, the number of radial cracks (RC/cm²) could represent a new method that might help identifying the combustion of green wood in archaeological charcoal samples.     

Circean transformation and the poetics of Milton’s Masque

ABSTRACT

Circe’s presence in A Masque Presented at Ludlow Castle (Comus) invites readers to read both Milton’s Circe and Milton’s own poetic activity through long and intertwined traditions of theology and literary commentary. Stretching from Augustine and Aquinas to the commentaries and translations of Homer and Ovid by Sponde, Sandys, and Chapman, these traditions use Circe to explore and conflate the possibility, the permanence, and the experience of both human and literary transformation. Taken up by Townshend and Jones in their Caroline court masque Tempe Restored, they become essential intertexts for Milton’s Masque. Milton embeds this discourse in his masque – a genre that places metamorphosis at the heart of its poetics – to examine the nature of Renaissance intertextuality and the authorial self and interrogate his own use of Renaissance practices of imitatio and aemulatio. In Comus’ wood, Circean transformation becomes a touchstone for the virtuous soul and the virtuous poet alike.     

Charcoal scarcity in Epigravettian settlements with mammoth bone dwellings: the taphonomic evidence from Mezhyrich (Ukraine)

Fuel management during the Paleolithic periods is an important issue to understand past human subsistence. Numerous Palaeolithic sites relate an abundance of burnt bones in hearths and an absence or scarcity of wood charcoals, which leads studies to focus on burnt bone remains and the use of bones in hearths. Few works take into account the micro-residues of wood charcoals which can still be present in hearth areas and excavated sediments. We studied the Epigravettian site with mammoth bone dwellings of Mezhyrich (Ukraine) previously characterized by its high content of burnt bones and an “absence” of wood charcoal during the so-called mammoth steppe. The presence or absence and proportions of both wood charcoals and burnt bones were quantified in macro-, meso- and microscale sediment size fractions by an image analysis method. Our results show that excavations during field-works at Mezhyrich give only a partial image of the original anthracological record and that most charcoal materials are lost with standard archaeological and anthracological approaches. The scarcity of charcoals in this site was possibly due to an important mass reduction accentuated by the addition of bones in hearths. By applying our protocol we recovered a significant amount of wood charcoals which provides the first ¹⁴C dates from charcoals at Mezhyrich. Numerous charcoals are identified contributing subsequent information about vegetation, environment and burning practices. They indicate, by comparison with pollen data already collected, the presence of forest patches in a mammoth steppe landscape, which might have influenced the collecting behavior of Epigravettian populations.     

Selective woodland exploitation for charcoal production. A detailed analysis of charcoal kiln remains (ca. 1300–1900 AD) from Zoersel (northern Belgium)

A detailed study of charcoal burning activities has been made for the Zoersel forest (Northern Belgium) based on an inventory of charcoal kiln remains, the analyses of wood charcoal and other charred botanical macroremains and radiocarbon dating of 10 of these kilns. Age determination of the youngest kilns was refined by dendrochronological analysis of trees growing on top of these kiln sites. The results show that, although many kilns were found, charcoal was produced in Zoersel only at certain moments during late and post-medieval times suggesting that charcoal burning was not a part of the regular management practice of these forests. The wood used for the production of charcoal mainly consists of taxa of alluvial (alder) forests while the kilns are situated on sites that currently are rather dry, with an oak dominated vegetation. For the older kilns, this contrast could be explained by an important change in local soil conditions. The younger kilns may be related to the conversion of alder woodland to grassland in the lower parts of the domain, with the kilns being constructed in the nearby dryer woodland areas.     

How the Romans got themselves into hot water: temperatures and fuel types used in firing a hypocaust

Abstract

The remains of hypocausts are noted as being widespread throughout the Roman Empire but, whereas the structure of hypocaust systems has been widely documented, primary knowledge of operating temperatures is limited. The petrographic technique of reflectance microscopy is used here to quantify cell wall reflectance values for charcoals from the hypocaust furnace of a bath suite forming part of small Romano-British villa complex at Groundwell Ridge near Swindon (Wiltshire, UK). The technique utilises material of archaeological origin to infer operating temperatures of the hypocaust furnace using established calibrations. The charcoals recovered from the furnace were identified as being predominantly Quercus (Oak) with some Populus/Salix (poplar/willow). Mean random reflectance of the samples indicated furnace-operating temperatures of 330–410°C. These temperatures fall below that of charcoal fuel production and hence suggest that it was wood that was used to fuel the hypocaust at Groundwell Ridge and not charcoal. Knowledge of the operating temperature of the furnace is a starting point in further calculations to understand, using primary evidence, the operating temperatures throughout the hypocaust system.     

Economic and Land-Use Implications of Prehistoric Fire-Cracked-Rock Piles,Northern Arizona

Abstract

Intensive archaeological survey of 14.5 sq km of the Upper Basin, an area located near the Grand Canyon's eastern South Rim in northern Arizona, has discovered 126 fire-cracked-rock piles that are surrounded by artifact scatters of varying size and assemblage composition. Because these phenomena are unprecedented in upland conifer ecosystems of the American Southwest, several hypotheses are explored regarding their formation histories. Analyses of artifact assemblages, botanical remains, pollen, and faunal remains recovered from four excavated sites indicate that they result from flaked-stone artifact production, ground-stone artifact reuse and recycling, ceramic-vessel-fragment recycling, and animal and plant processing. In addition, radiocarbon dates and temporally diagnostic projectile-points and ceramics imply that the sites differ in terms of frequency, intensity, and patterns of use, and with respect to the groups of people who formed them (Anasazi, Cohonina, Havasupai, or Hopi). Byproducts of a little-known, long-term land-use pattern in Southwestern prehistory (ca. A.D. 417–1650), these sites represent a key source of information for understanding how different sources of variability come to be expressed in archaeological landscapes.     

Constructing community at civic-ceremonial centers: pottery-making practices at Crystal River and Roberts Island

ABSTRACT

Crystal River (8CI1) and Roberts Island (8CI36, 8CI40, 8CI41) are neighboring mound complexes on Florida’s west-central Gulf Coast, with mainly sequential occupations during the Middle and Late Woodland periods, respectively. Previous work at Crystal River produced assemblages marked by a diversity of pastes and surface treatments, suggestive of distinct communities of practice. However, these excavations were unsystematic and poorly controlled, thus confounding understanding of temporal and spatial variation in practice. Recent excavations in domestic areas, combined with the analysis of older collections from mounds, support a finer-grained understanding of variation in ceramic production. Our analysis suggests that communities of practice persisted through time, although there is variation that corresponds well with changes in settlement.     

Late Holocene Artifact Patterns and the Introduction of Herding to Semi-Arid Coastal Namaqualand,South Africa

ABSTRACT

Considerable change occurred in the Late Holocene Later Stone Age of Namaqualand, northwestern South Africa. Focusing on stone artifacts, pottery, and ostrich eggshell beads, the cultural sequence for the area is described. Two additions are identified, complicating the traditional model for the introduction of herding into the country. From the mid-Holocene onward, lithic assemblages are based on milky and/or clear quartz and cryptocrystalline silica and initially contain many backed tools with scrapers more common during the first millennium BC. These are hunter-gatherer assemblages. During the final centuries BC, backed bladelet-rich assemblages based on clear quartz appear, with the earliest examples demonstrating typological continuity with the existing assemblages. About 1,500 years ago, expedient assemblages lacking retouch and based on poorer quality quartz appear. The three types co-occur during the last 1,500 years, occasionally in combination with one another. This contrasts strongly with other parts of South Africa where just two distinct assemblage types are identified, suggesting that the hunter-gatherer-herder dichotomy is not universally valid. The artifact patterns between about 200 cal BC and cal AD 500 and the introduction of livestock suggest considerable cultural and social change, heralding the onset of a local Neolithic, but the exact mechanisms remain unclear.     

Sustainable management of metallurgical forest on Mont Lozère (France) during the Early Middle Ages

Mont Lozère, located in the French Massif Central region, provides an exceptional context in which to research the impact that charcoal production and metallurgy had on woodlands, along with the role that these activities played in changing the mountain landscape. This study provides an insight into the land use, forest management methods and metallurgical practices in the area during the Middle Ages (11th to 15th centuries). Medieval charcoal burning platforms, archaeological remains that have often been neglected in the past as a source of historical information, along with nearby smelting sites, were identified, sampled and analysed. In this paper, spatial analyses, radiocarbon dating and anthracological and dendro-anthracological studies have been combined in a unique manner. The results reveal that charcoal burners practiced beech coppicing, where the species and diameter of wood used remained the same over a period of four centuries. It is proposed that this form of metallurgical forest management be considered an early example of a sustainable utilisation of natural resources.