A palaeoenvironmental context for Terminal Upper Palaeolithic and Mesolithic activity in the Colne Valley: Offsite records contemporary with occupation at Three Ways Wharf,Uxbridge

Abstract

Multi-proxy analyses from floodplain deposits in the Colne Valley, southern England, have provided a palaeoenvironmental context for the immediately adjacent Terminal Upper Palaeolithic and Early Mesolithic site of Three Ways Wharf. These deposits show the transition from an open cool environment to fully developed heterogeneous floodplain vegetation during the Early Mesolithic. Several distinct phases of burning are shown to have occurred that are chronologically contemporary with the local archaeological record. The floodplain itself is shown to have supported a number of rare Urwaldrelikt insect species implying human manipulation of the floodplain at this time must have been limited or episodic. By the Late Mesolithic a reed-sedge swamp had developed across much of the floodplain, within which repeated burning of the in situ vegetation took place. This indicates deliberate land management practices utilising fire, comparable with findings from other floodplain sequences in southern Britain. With similar sedimentary sequences known to exist across the Colne Valley, often closely associated with contemporary archaeology, the potential for placing the archaeological record within a spatially explicit palaeoenvironmental context is great.     

Burning damage and small-mammal human consumption in Quebrada del Real 1 (Cordoba, Argentina): an experimental approach

The zooarchaeological study of small-vertebrate consumption requires a taphonomical approach to differentiate animal bones that were incidentally incorporated from those that were intentionally exploited in the past human subsistence. In order to make this distinction, the relationship between archaeological small-rodent burned bones and prehistoric human behavior was explored using an experimental cooking study as a modern analogue. During the cooking experiment the entire carcasses of three guinea pigs (Cavia porcellus) and two yellow-toothed cavies (Galea leucoblephara) were placed in the coals of an open fire that simulate a real campfire, rotating their positions until the meat was completely cooked. Subsequently, the intensity of burning damage and the loss of skeletal elements were analyzed at macroscopical levels. The data was used to identify cooking evidence in the Ctenomyidae and Caviidae rodent bones recovered from Quebrada del Real 1 (ca. 6000-300 BP, Córdoba, Argentina). Remarkable similarities between the archaeological and analogical records were found, including the distinctive burning pattern on the distal extremities of the unmeaty long bones (e.g, radii and tibiae), the high frequency of broken incisor teeth and the loss of autopodium elements. Based on these comparative results, it is suggested that the small-rodent assemblages of QR1 were primary accumulated by humans though butchery, cooking and consumption related activities. Extending this study to other archaeological sites in South America may help to identify the prehistoric bone collectors of these small-animals.     

Going underground: experimental carbonization of fruiting structures under hearths

We show that carbonized fruits and seeds recovered from Middle Stone Age deposits in rock shelters are likely to have been carbonized as part of post-depositional processes. We buried indigenous South African fruits, nuts and seeds at pre-determined depths and distances from the centers of experimental fires. The cold ashes of the hearths and the sand surrounding them were subsequently excavated, using standard archaeological techniques and dry-screening. The fruiting structures from the oxidizing part of the fire were burnt to ashes, whereas those buried in sand under anoxic conditions survived in varying forms. Those buried 5 cm below the center of the fire were carbonized; those buried 10 cm below the center of the fire were dehydrated; and those 5 cm and 10 cm below the surface at the outer edge of the fire were unaffected. Size, moisture or oil content of the original fruit or seed did not appear to influence whether or not carbonization took place. Temperatures recorded 5 cm below the experimental fires suggest that the carbonization occurred at or before a maximum temperature of 328 °C, and also at lower maximum temperatures (152 °C) that were maintained for long periods. Even when the quantities of a particular wood are controlled, open fires may produce variable underground temperatures and the temperatures below ancient hearths would have been equally variable. We suggest that Cyperaceae (sedge) nutlets, the most numerous fruiting structures in the Sibudu Middle Stone Age archaeobotanical assemblage, occur in the shelter as a result of human activity, subsequent burial, and accidental carbonization when hearths were built directly above the buried nutlets.     

Recognising burnt vein quartz artefacts in archaeological assemblages

The primary aims of this study were to determine how vein quartz behaves in an open wood fire and to suggest how burnt quartz may reliably be distinguished from unburnt quartz. Experimental burning was conducted on 10–50 mm pieces of knapped quartz collected from outcrops and beach cobbles near a later Mesolithic and Neolithic quartz scatter at Belderrig, north County Mayo, Ireland. Burning resulted in considerable fragmentation, with the majority of post-burning fragments <10 mm in size. Compared to experiments with flint, few quartz pieces were expelled from the hearth during burning, probably due to lower water content. Burning reduced the lustre and transparency of quartz and oxidized any iron-bearing rock impurities to a red-brown or pink colour, but these changes could only be diagnostic of burning where unburnt quartz of the same type is available for comparison. Burning did not affect the texture of the quartz, though quartz grain boundaries became more visible in some samples. Under the microscope, all >5 μm fluid inclusions in quartz lost their fluid contents, often with the development of fluid escape structures, and this is likely to be a reliable discriminant between burnt and unburnt vein quartz generally, even in the absence of unburnt material for comparison. Burning also creates microfractures, but this feature does not provide a diagnostic test of burning as there is considerable overlap between burnt and unburnt samples in microfracture density.     

The transformational festival as a subversive toolbox for a transformed tourism: lessons from Burning Man for a COVID-19 world

Abstract

Examining transformational festivals can offer conceptual resources for a transformation of tourism into a more responsible and sustainable practice. By thinking together two usually distinct scholarly treatments of “transformation”—those of transformational tourism and those of transformational festivals—the COVID-19 pandemic can itself also be treated as a spatiotemporal threshold for the transformation of the travel industry. This approach can also help deconstruct the mechanisms that sustain deleterious aspects of tourism’s guest-host divide. As borders reopen and mobility and recreation recommences, the capacity of transformational festivals—both within and beyond their highly porous time-spaces– to transform their participants offer lessons for the blurring, if not the outright obliteration of the demarcation between guests and hosts. The creative and pro-social responses of members of one such transformational festival culture—Burning Man– to this and past crises are presented as examples for how values such as participation and civic responsibility may help people overcome shared conditions of hardship, and support more sustainable tourism practices in the post-COVID-19 world. Such subversive inter-subjective inversions may bring the recognition, in-itself, and production, for-itself, of a shared humanity of co-creators and participants in not just ephemeral, but accretive transformational social and environmental projects.