Talking to strangers (Respond to this article at http://www.therai.org.uk/at/debate)

The language used by politicians and its social effects have been of long‐standing interest to social anthropology. Opinion‐formers on both sides of the North Atlantic have recently argued that this language can inflame tensions and reinforce divisions. In the UK, the discussion has centred on relations between a white majority and a Muslim minority, while in the US, in the aftermath of the attempted assassination of a Democratic Congresswoman in Arizona, it has focused on the risk of political language provoking violence. The antidote to inflammatory language is often assumed to be moderation, defined as a (self‐) disciplined engagement with divided publics. Drawing on the insights of Danielle Allen's Talking to strangers, here I suggest that moderation might be re‐imagined, not as a vague commitment to centrism and the ‘middle ground’, but as a powerful resource for citizens and communities to challenge the ideological excesses of politics, religion and the market in the twenty‐first century.     

Testing the ‘Laacher See hypothesis’: a health hazard perspective

It has recently been suggested that the Laacher See volcanic eruption, which occurred around 13,000 years ago, initiated significant demographic fluctuations along the northern periphery of Late Glacial human settlement and that these led to a number of material culture transformations. The origins of the Southern Scandinavian Bromme culture and the northeastern European Perstunian culture as well as the temporary abandonment of Central European regions have been linked to this eruption. However, it remains unclear precisely which aspects of the eruption stimulated Late Glacial foragers to abandon their traditional ways of life. Paradoxically, the culture–historical impact of the eruption appears greater further away from the eruptive centre. Here, we investigate one potential middle-range link between the Laacher See eruption and Late Glacial fauna and foragers: tephra as a health hazard. We use laser-diffraction particle-size analysis to quantitatively investigate tephra from one site with a secure Late Glacial archaeological deposit. In addition, we use values previously reported in the literature and a predictive model to calculate the hazard potential along a transect of two of the three major Laacher See tephra fans. Our results show that the Laacher See tephra may have posed a potential health hazard and that its hazard potential may have increased with distance from the vent. To our knowledge this is the only study that attempts to quantify the changing grain-size composition of tephra fall-out longitudinally in this way, at least with regard to a prehistoric eruption. We close by discussing, more speculatively, other possible health-pertinent effects of the Laacher See eruption and suggest ways in which future work can further evaluate the impact of this eruption on Late Glacial populations.     

Death on the farm: Culling badgers in North Pembrokeshire (Respond to this article at http://www.therai.org.uk/at/debate)

The Welsh Assembly Government has recently announced its intention to cull all badgers from North Pembrokeshire on the grounds that they are vectors of bovine tuberculosis. This article considers some local reactions to this news, ranging from those who support the cull wholeheartedly to those who argue against it, and some of the reasons why people adopt different standpoints. The article considers a range of issues which help explain why people think as they do; these include perception of risk, ethnicity, ideas about animals and wildlife, the selective uses of both scientific literature and emotion, and finally some of the local and regional politics involved.     

A deciduous and permanent dental wear stage system for assessing the age of Trachypithecus sp. specimens (Colobinae, Primates)

Although Colobine monkeys are one of the most common prey hunted by Southeast Asian prehistoric humans, no data concerning tooth eruption and wear are available for these species. Dental wear eruption and attrition are used for attributing ages to individual fossils in order to construct mortality curves, and are also useful in reconstructing fossil life histories. Such wear sequences partly exist for Cercopithecines. Although Cercopithecines and Colobines are both bilophodont, they present significant differences in terms of diet, detailed tooth morphologies and occlusion. This paper aims to formulate a guide for the dental eruption and attrition of extant Trachypithecus specimens, the most folivorous of all the Colobines. We also propose to calibrate the eruption and wear stages that we define here with absolute ages available in the literature.     

Characteristics of CO2‐driven cold‐water geyser,Crystal Geyser in Utah: experimental observation and mechanism analyses

Geologic carbon capture and storage (CCS) is an option for reducing CO₂ emissions, but leakage to the surface is a risk factor. Natural CO₂ reservoirs that erupt from abandoned oil and gas holes leak to the surface as spectacular cold geysers in the Colorado Plateau, United States. A better understanding of the mechanisms of CO₂‐driven cold‐water geysers will provide valuable insight about the potential modes of leakage from engineered CCS sites. A notable example of a CO₂‐driven cold‐water geyser is Crystal Geyser in central Utah. We investigated the fluid mechanics of this regularly erupting geyser by instrumenting its conduit with sensors and measuring pressure and temperature every 20 sec over a period of 17 days. Analyses of these measurements suggest that the timescale of a single‐eruption cycle is composed of four successive eruption types with two recharge periods ranging from 30 to 40 h. Current eruption patterns exhibit a bimodal distribution, but these patterns evolved during past 80 years. The field observation suggests that the geyser's eruptions are regular and predictable and reflect pressure and temperature changes resulting from Joule–Thomson cooling and endothermic CO₂ exsolution. The eruption interval between multiple small‐scale eruptions is a direct indicator of the subsequent large‐scale eruption.     

Geoarchaeological tsunami deposits at Palaikastro (Crete) and the Late Minoan IA eruption of Santorini

The explosive eruption at Santorini in the Aegean Sea during the second millennium BCE was the largest Holocene volcanic upheaval in the Eastern Mediterranean region. The eruption was disastrous for the Minoan settlements at Santorini, but the effect on human society in the neighbouring islands and regions is still clouded in uncertainty. Tsunami generation was suggested, but comparatively little evidence was found. The lack of firm tsunami traces is particularly puzzling in Crete with its coastal settlements of the Late Minoan IA period, during which the Santorini eruption occurred. Here, we report the discovery of extensive geoarchaeological tsunami deposits at Palaikastro in north-eastern Crete. These deposits are characterized by a mixture of geological materials, including volcanic Santorini ash, and archaeological settlement debris. Various tsunami signatures were identified: (1) erosional contact with the underlying strata, (2) volcanic ash intraclasts in the lower part of the deposit, (3) reworked building stone material in the lower part of the deposit, (4) individual marine shells, (5) marine micro-fauna, (6) imbrication of rounded beach pebbles, settlement debris, ceramic sherds and even bones, (7) multi-modal chaotic composition. Late Minoan human settlement activities at Palaikastro provided architectural and stratigraphic frameworks in space and time that recorded and preserved tsunami evidence as geoarchaeological deposits. Such stratigraphic resolution and preservation may not occur in the natural landscape. Volcanic ash transported by wind from Santorini south-east to Crete preceded the tsunami. Geological, archaeological and radiocarbon dating criteria all converge, indicating that the tsunami deposits are coeval with the Minoan Santorini eruption. Field evidence suggests that tsunami waves at Palaikastro were at least 9 m high. Inverse tsunami modeling was attempted, based on these newly discovered tsunamigenic deposits. The initial wave in the generation region at Santorini that best fits the stratigraphic data is a wave with +35 to −15 m initial amplitude and a crest length of about 15 km.     

Testing the ‘Laacher See hypothesis’: tephra as dental abrasive

In a series of recent studies, changes in material culture and settlement pattern in the Late Glacial of Northern Europe have been linked to the eruption of the Laacher See volcano. This eruption occurred c. 13,000 years ago towards the end of the Allerød chronozone. It is argued that the tephra fall-out from this eruption set in motion significant demographic fluctuations along the northern periphery of Late Glacial human settlement and that these led to a number of material culture transformations. In particular, the emergence of the regionally distinct techno-complexes with large tanged points – the Bromme culture in southern Scandinavia and the Perstunian culture in northeastern Europe – and the temporary abandonment of central European regions are thought to relate to this eruption. While numerous archaeological datasets are in accord with this ‘Laacher See hypothesis’, the forcing mechanism or mechanisms that brought about these archaeologically visible changes have remained largely unexplored. A particular challenge is to explain how some of the culture-historical effects of the Laacher See eruption seem to change or become more pronounced with distance from the eruptive centre. We here investigate one potential middle-range link between the Laacher See eruption and Late Glacial fauna and foragers: tephra as dental abrasive. We use instrumented nanoindentation to quantitatively investigate tephra from a number of sites covering the medial and distal fall-out zones as well as the dental enamel of Homo sapiens and key prey species of Late Glacial foragers. Our results show that the Laacher See tephra contained particles roughly twice as hard as even the hardest portions of any of the teeth investigated. We also suggest that fluoride-induced weakening of dental enamel may have further aggravated tooth wear. These mechanisms may have acted in concert to produce elevated levels of, in particular, animal mortality, which in turn may have led to an abandonment of the affected landscapes.     

Hydraulically fractured: Unconventional gas and anthropology (Respond to this article at http://www.therai.org.uk/at/debate)

The predicted increase in unconventional gas production is set to change global energy and concomitant geopolitical relations. The scale and required infrastructure of unconventional gas extraction result in profound changes in the landscape where extraction and processing take place. Widespread public concerns about the impacts of this industry have emerged, particularly with regard to fracking, surface and subterranean water contamination, air pollution and a host of other environmental issues, as well as social impacts and health risks. This article sets out some of the emerging anthropological engagements with unconventional gas and fracking, including analyses of materiality, politics, discourses, rights, risk and knowledge.     

A game of risk: Boat migration and the business of bordering Europe (Respond to this article at http://www.therai.org.uk/at/debate)

Largely in response to irregular migration flows, a Euro‐African border is under construction at the southern edges of Europe. The latest phase in this ‘borderwork’ is a system known as Eurosur, underpinned by a vision of a streamlined surveillance cover of Europe's southern maritime border and the African ‘pre‐frontier’ beyond it. Eurosur and other policing initiatives pull in a range of sectors – from border guards to aid workers – that make the statistically small figure of the irregular border crosser their joint target. To highlight the economic and productive aspects of controlling migratory flows, I call this varied group of interests an ‘illegality industry’. Casting an eye on the Spanish section of the external EU border, this article investigates how the illegality industry conceptualizes migrants as a source of risk to be managed, visualized and controlled. The end result, it is argued, is a ‘double securitization’ of migrant flows, rendering these as both a security threat and a growing source of profits.     

Colonising geology: Volcanic politics and geopower

This paper discusses the experiences of Christian Montserratian residents through the 1995-present eruptions of the Soufrière Hills Volcano, highlighting that while the earthly powers of the volcano are fundamentally nonhuman, they are known and understood in a diversity of ways by different actors – and they interfere in politics and the production of knowledge. Montserrat, as a UK Overseas Territory, is a non-sovereign territory with a strong Christian identity that has been enhanced by its geological experience. At the same time, the UK has used the eruption to hold greater legislative control over the island. A final group of stakeholders in the eruption is the volcanologists, mainly from the UK until 2010, whose terminology and knowledge-world has had significant impact on the island, but has also been significantly extended by it. The paper ultimately uses this example to suggest that while there are useful and important insights from the “ontological turn” (incorporating vitalism, materialism, speculative realism) in thinking about the “lively earth”, the enactment of volcanic risk management at the governmental level also constitutes a knowledge-practice that must be approached critically to avoid the pitfalls of modernist science and ensure meaningful political change.     

Reform in Turkey: Liberalization as government and critique (Respond to this article at http://www.therai.org.uk/at/debate)

Turkey is in the midst of a wide‐ranging reform of historic proportions, the most profound reorganization and restructuring of institutions and practices since the foundation of the Republic in 1923. These reforms, inspired and guided by the country's EU integration, are multifaceted but can be summarized as liberalization of economy, politics and society. While capitalist penetration and privatization are obvious features of the reform, its techniques, kinds of knowledge and objects, as well as its reflexive aspects – the ways in which it studies itself unfolding – have not been sufficiently conceptualized.     

The motorcycle Sallah durbars of Zaria 2012 (Respond to this article at http://www.therai.org.uk/at/debate)

Social dynamics may be understood more clearly through the analysis of an extraordinary event, which suggests not only a change in cultural practice but which also suggests wider political ramifications. In Zaria City, the old, walled section of the town of Zaria associated with the former Emirate of Zazzau, in northern Nigeria, the Emir's cancellation of the Sallah durbars—elaborate processions of gorgeously dressed men and horses—and their replacement by young men wearing blue jeans and riding motorcycles represents just such an event. Through their actions, these young men motorcyclists questioned the moral authority of those associated with traditional rule in Zaria who are seen as reneging on their duty to intercede for their people in favor of federal largesse. In this sense, the performance of motorcycle Sallah durbars relates to the more violent protests in northern Nigeria against police officers, soldiers, and political leaders (which includes traditional rulers), attributed to the Islamic reformist movement, Jama'atu Ahlis‐Sunnah Lidda'awati Wal Jihad (JASLWJ), popularly known as Boko Haram. The complaints and demands of the young men involved differ; the Sallah motorcyclists are criticizing the behavior of an individual emir, while JASLWJ followers are demanding a state ruled by Shari'a law and a return to Islamic moral order. Yet in both cases, they challenge the prevailing status quo and question the authority of their elders. The significance for the Nigerian state of these conflicts—between those advocating a religious regime and those supporting a secular state, between youth and elders, between rich and poor—may be understood more clearly by examining the micro‐politics of the motorcycle Sallah durbars which took place in Zaria in 2012.     

The Khat ban in the UK: What about the ‘scientific’ evidence? (Respond to this article at http://www.therai.org.uk/at/debate)

Since the 1920s certain psychoactive substances have been controlled by specially created international agencies. More recently, governments have committed themselves to using evidence in policy‐making. Yet, as the ban on khat in the UK and other countries shows, the assessment process is a perfunctory rather than a decisive component. The Home Secretary set aside scientific advice and bases the decision to ban on considerations outside the health risk ratio, including crime control and counter‐terrorism. However, experience shows that prohibiting substances when demand remains strong is inherently criminogenic. Indeed, the khat ban would appear to play into the hands of radical Islamist organizations. In this article, Axel Klein discusses how political calculations overrule evidence and how this is facilitated by international drug control agencies. Using the term ‘social system’ to explain the relentless extension of bureaucratic remit, he argues that control would now appear inevitable for any substance defined as a drug, regardless of evidence and consequence. As this has implications for other culture‐bound peculiar substances or ‘genussmittel’ he suggests ditching the term ‘drug’ altogether.     

Towards a Theory of Santa: Or,the Ghost of Christmas Present (Respond to this article at http://www.therai.org.uk/at/debate)

This account of the cultural phenomenon of Santa/Father Christmas draws on the polarities that attend the rituals of Santa/Christmas: secular/religious; commodity/gift; sacred/profane; material/spiritual etc., while also arguing that these dichotomies act together, rather than as simple oppositions. The account also draws on empirical work by the authors and a wider group of practitioner‐researchers on how young children construct and reason with Santa. We then discuss the threat to Santa from the audit culture, which involves an inversion of his benign characteristics in terms of suspicion and surveillance. Our conclusion is that Santa is more of a religious figure than he is often given credit for being, and is felt by ‘believers’ to be superior in terms of ‘delivery’, as current systems of accountability might put it. But he is threatened by an audit culture for which he is almost the epitome of Stranger Danger. ‘Santa’, after all, is an anagram of ‘Satan’.     

Iraq: The state‐of‐nature effect (Respond to this article at http://www.therai.org.uk/at/debate)

In the civil strife of ancient Greek cities that was the model for Hobbes' state of nature, the intervention of the larger forces of Athens and Sparta, proclaiming unconditional causes‐to‐die‐for, transformed local social differences into lethal factional enmities. Death then raged from many quarters. The same effect of anarchic violence has followed from imperial conquer‐and‐divide policies in modern colonial and post‐colonial societies. The present paper documents the processes by which the American intervention in Iraq transformed a plural nation into a bellum omnium contra omnes. Historically, the state of nature appears as the effect of the subversion of the social contract rather than its precondition.     

A thousand Nagdis (Respond to this article at http://www.therai.org.uk/at/debate)

A tributary of the Banas, the Nagdi River flows through the old market town of Jahazpur in Bhilwara District, Rajasthan. Unlike India's major sacred waterways such as the Ganga and the Yamuna which have the status of goddesses, the Nagdi was never deified. However, it figures in Jahazpur's origin legend, reaching back to the epic Mahabharata. Due to a complex convergence of conditions unique to this place but resonant with ecological tragedies the world over, the Nagdi's flow has dwindled and its waters are badly polluted. Everyone in Jahazpur with whom the authors spoke during fieldwork in 2010–11 mourned the end of their river. Once proud of the Nagdi's beauty and miraculous properties, Jahazpur residents were aware of having lost an important part of their environmental and cultural heritage. This article explores the complex causalities of the Nagdi's deterioration and emergent possibilities for its restoration.     

A possible early age for a diprotodon (Marsupialia: Diprotodontidae) fossil from the Papua New Guinea highlands

MENZIES, J., DAVIES, H.L., DUNLAP, W.J. & GOLDING, S.D., June, 2008. A possible early age for a diprotodon (Marsupialia: Diprotodontidae) fossil from the Papua New Guinea highlands. Alcheringa 32, 129–147. ISSN 0311-5518.

A fossil diprotodon jawbone coated and impregnated with a well-cemented fine breccia or tuff was recovered from weakly consolidated Pleistocene lacustrine sediments near Yonki in the Papua New Guinea highlands. The fine breccia includes angular rock and mineral fragments derived from country rock, accretionary lapilli and clay minerals. It does not include any identifiable primary volcanic material. The presence of accretionary lapilli and lack of volcanic clasts suggests an origin by phreatic eruption—an explosive eruption driven by the violent escape of gas. Minerals in the fine breccia have an age of 13.2 ± 0.2 Ma, middle Miocene, as indicated by ⁴⁰Ar/³⁹Ar analysis. This is the age of the country rock that was blasted by the phreatic eruption. Igneous activity in the Yonki area is thought to have ceased at 7.4 Ma (younger age limit of Elandora Porphyry; late Miocene), and so it is likely, but not certain, that the phreatic eruption occurred not later than 7.4 Ma. The jawbone, as far as can be told from its poor condition, is dentally similar to the late Pliocene and possibly Pleistocene ‘Kolopsis’ watutense recovered from other sites in New Guinea. Probably, the jawbone, or the living marsupial, was buried in the fine breccia at the time of the phreatic eruption, and its remains were subsequently reworked by river erosion and redeposited in the lacustrine sediments. Recrystallization and loss of primary texture in some of the bone may be a result of heating at the time of, or preceding, the eruption.     

The African bill: Chinese struggles with development assistance (Respond to this article at http://www.therai.org.uk/at/debate)

Chinese diplomats and politicians have sought to underline the mutually beneficial and cordial nature of Chinese engagement with Africa through the use of phrases such as ‘win‐win cooperation’ (huying huli hezuo) and ‘friendly collaboration’ (youhao hezuo). Avoiding the use of concepts such as ‘aid’, which suggest a hierarchical relationship between giver and receiver, they have argued that Chinese initiatives on the African continent are fundamentally different from Western development assistance. An anthropological glance at the situation on the ground however, shows that these statements are not only a part of political rhetoric, but that they also mask the similarities between Chinese and Western involvement with development in Africa.     

Feigning the market: Funding anthropology in England (Respond to this article at http://www.therai.org.uk/at/debate)

Impending changes to the funding of tertiary education in England (and, less directly, throughout the United Kingdom) pose particular challenges to small disciplines, like anthropology. From the perspective of students, potentially facing thirty years repaying educational debt, the new dispensation looks like ‘marketization’, with degrees conceived as private goods to be paid for at a rate that covers the costs of their provision. From the perspective of the universities, however, the same changes come with new layers of obligation, audit, assessment and regulation. The mismatch between students’ expectations and universities’ capacities is only likely to widen. These changes in undergraduate funding will take place concurrently with a reduction in all the other streams of government funding on which anthropology departments rely for the research of their staff and research students. Career paths in anthropology, involving progression through undergraduate and taught postgraduate studies, to postgraduate research and eventually a position in the academy, will become prohibitively expensive for all but a very few students. Departments of anthropology will be forced (by the logic of the new system and by their own universities) into exploiting their sources of comparative advantage; but the UK discipline as a whole will be the likely casualty of such behaviour if an already slender institutional presence is eroded further.     

Thermoluminescence age of quartz xenocrysts in basaltic lava from Oninomi monogenetic volcano, northern Kyushu, Japan

We determined the eruption age of basaltic rocks by application of thermoluminescence (TL) method, which is often used for TL dating, to quartz. Mafic magma only rarely includes quartz because of their mutual disequilibration. The basaltic lavas reported herein include quartz as xenocrysts, as corroborated by their rounded or anhedral shape. The basaltic lava used for this study is from the Oninomi monogenetic volcano in northern Kyushu, Japan. The volcano eruption was estimated as occurring 7.3–29 ka because the lava exists between two widespread tephras: Aira-Tanzawa ash (26–29 ka) and Kikai-Akahoya ash (7.3 ka). We succeed-ed in collecting ca. 200 mg of quartz by decomposition of 30 kg of the lava samples. TL measurements for the lava indicate the eruption age as 15.8 ± 2.5 ka, which is fairly consistent with the stratigraphical estimation. Although the TL method has played a considerable part in constraining the timescale of Quaternary events, its application has been limited to silicic samples. The present result demonstrates the availability of quartz for dating even of mafic rock.