NON‐DESTRUCTIVE ANALYTIC METHOD USING XRF FOR DETERMINATION OF PROVENANCE OF ARCHAEOLOGICAL OBSIDIANS FROM THE MEDITERRANEAN AREA: A COMPARISON WITH TRADITIONAL XRF METHODS*

A non‐destructive analytical method using wavelength‐dispersive X‐ray fluorescence (WDXRF) that allows the establishment of the provenance of archaeological obsidians was developed and a comparison with the classical XRF method on powders is discussed. Representative obsidian samples of all the geological outcrops of archaeological interest of the Mediterranean area (Lipari, Pantelleria, Sardinia, Palmarola and the Greek islands of Melos and Gyali), were analysed with the normal procedures used in rock analysis by XRF (crushing, powdering and pelletizing). The non‐destructive XRF analysis was instead conducted on splinters taken from the original geological pieces, with the shape deliberately worked to be similar to the refuse usually found at archaeological sites. Since the analysis was conducted on the raw geological fragment, intensity ratios of the suitably selected chemical elements were used, instead of their absolute concentrations, to avoid surface effects due to the irregular shape. The comparison between concentration ratios (obtained by traditional XRF methods) and the intensity ratios of the selected trace elements (obtained from the non‐destructive methodology) show that the different domains of the chemical composition, corresponding to the geological obsidians of the source areas, are perfectly equivalent. In the same way, together with the geological splinters, complete archaeological obsidians, from Neolithic sites, may be analysed and their provenance may be determined. The proposed non‐destructive method uses the XRF method. Due to its sensitivity, low cost and high speed, it is surely an extremely valid instrument for the attribution of the provenance of the archaeological obsidian from Neolithic sites.     

The hospitality of war

In considering some of the issues raised by the troubling and troublesome thesis of ‘the barbarization of warfare’, this review article reflects briefly on civilization and barbarism on the battlefield, and in the imagination, calling in aid an unholy alliance of Joseph Conrad, Norbert Elias, Basil Liddell Hart among others, and pitting the idea of a ‘civilizing process’ against a barbarizing one. From 2003 to 2006 UN Secretary General Kofi Annan pursued an agenda that went far beyond budget, personnel and management issues, and included proposed changes to existing institutions in peacebuilding, disarmament and non‐proliferation, human rights, and counterterrorism. The overhaul was prompted by fear that in the aftermath of its invasion of Iraq, the United States might walk away from the United Nations. By showing that the UN system could be strengthened to address the new threats of the twenty‐first century, Kofi Annan hoped that the United States could be convinced to re‐engage. Despite polarization and mistrust among member states, the effort created new intergovernmental organs to address key problems, gained universal endorsement for the responsibility to protect, and established new offices in the Secretariat to make it more effective. That more was not accomplished was a result of spotty American engagement and the performance of the US ambassador, as well as hesitation among many member states that would rather have an ineffective UN than an effective one that advanced the goals of American primacy.     

Using Facebook as a Space for Storytelling in Geographical Research

Geographers have long been alert to the ways space matters to knowledge production and the stories participants choose to share. Despite such understandings, however, geographers remain surprisingly absent from discussions regarding the ways these concerns play out across online spaces. This article reflects on the employment of one online space, Facebook, as a site for storytelling in research exploring return journeys to two Australian festivals – the Big Day Out and Mardi Gras Parade. This article argues that insight over longer temporalities and shifting spatialities afforded through Facebook facilitates heightened understandings of the nuances, repetitions, differences and paradoxes of identities, encounters, and politics. Facebook, therefore, has the potential to allow for different ways of knowing that cannot be ascertained in more orthodox research spaces. Moreover, the slipperiness of conceptualisations of privacy and consent in this space draws attention to the necessity of understanding consent as fluid and ongoing, rather than antecedent to fieldwork commencement. Crucially, however, reconceptualisations of privacy and consent in this space expose potential obstacles university ethics committees may meet in responding to research moving online.     

THE TECHNOLOGICAL AND TYPOLOGICAL BEHAVIOUR OF A NEANDERTHAL GROUP FROM EL SIDRÓN CAVE (ASTURIAS,SPAIN)

This paper presents the first detailed analysis of the lithic industry from El Sidrón Cave. Previously we have published other works concerning Anthropology and Palaeogenetics. The lithic assemblage contains 415 artefacts coming from both unofficial and official excavations and is largely flake‐based. The raw material derives from the immediate cave environment, and is mostly chert, with quartzite in a lesser proportion. To date, 67 artefacts have been refitted, including some tools and cores. The spatial distribution of the refitted lithic artefacts confirms, on the one hand, the unity of the assemblage and, on the other, its secondary context.     

COMPLEMENTARY COMPOSITIONAL ANALYSIS OF FORMATIVE PERIOD CERAMICS FROM THE TEOTIHUACAN VALLEY

During the Classic Period, Teotihuacan was an economic centre of central Mexico, but little is known about the development of this system. This paper presents a pilot study in multi‐method analysis of Formative Period (1500/1400 bc –ad 150) ceramics from the Teotihuacan Valley. Pottery was characterized by instrumental neutron activation analysis, laser ablation inductively coupled plasma mass spectrometry, thermal ionization mass spectrometry and petrography. It appears that most pottery was made from local raw materials that differ from later Postclassic materials. Some inter‐village interaction is suggested by stylistic choices, and one settlement had a group of ceramics made from unequivocally distinct raw materials. The study demonstrates how complementary methods can be used to draw greater anthropological meaning from compositional differences.     

SHAFT‐HOLE AXES FROM CAPUT ADRIAE MADE FROM AMPHIBOLE‐RICH METABASITES: EVIDENCE OF CONNECTIONS BETWEEN NORTHEASTERN ITALY AND CENTRAL EUROPE DURING THE FIFTH MILLENNIUM BC

Here we show the results of a study concerning a small group of shaft‐hole axes found in northeastern Italy, made from amphibole‐rich metabasites, fine‐grained and free of phenoblasts. The main mineral phases are amphibole, ranging from actinolite to hornblende, and plagioclase (An_10–15 and An_70–77). The amphiboles generally show a needle shape and are often radially arranged. Quartz is present in thin veinlets, while ilmenite is widespread in small patches. The petrographic and geochemical features suggest that the axes originate from the southern thermal aureole of Tanvald granite in northern Bohemia. In accordance with this provenance, the typology of the tools shows similarities with the perforated shoe‐last axes spread across Central Europe during the fifth millennium bc and made from similar raw material. For the first time, these axes give evidence of long‐distance (about 800 km) contacts between northeastern Italy and Central Europe during the Neolithic.     

A decade of African Peace and Security Architecture

This article examines how the African Union (AU) has handled Africa's peace and security challenges since 2002, defines what has been successful and what remains aspirational. It does so by examining how the AU has responded, from using sanctions against coups, to deploying peacekeeping missions and mediating in conflicts. An African Peace and Security Architecture (APSA) has developed since 2002, including a Peace and Security Council, an African Standby Force, a Continental Early Warning System and a Panel of the Wise. This sounds impressive, but the operationalization record is patchy: AU‐deployed missions have been fully dependent on external donors; harmonization is a major problem; serious questions remain over AU capacity; and some of the Regional Economic Communities (RECs) are developing at a quicker pace than the AU. Given these circumstances and its internal capacity deficit, the AU will likely struggle to exercise oversight of regional processes, including the development of regional standby force arrangements. APSA is clearly based on a liberal peace model, yet democratic systems, respect for human rights and good governance aren't always in place in African countries, and the self‐interest of elites continues to be a constraint on APSA and its success. Over the last decade the AU has found a voice and, despite some setbacks, it has shown through AMISOM in Somalia that it is capable of conducting a successful peacemaking operation. Its biggest challenge is not making the decision to intervene or deploy forces, but the capacity of most African states to deploy effectively. APSA's dependence on external partners needs to diminish over the next decade if better African solutions are to be found to peace and security challenges in the continent. Yet, the internationalized nature of crises such as the one in Mali in 2012–13 requires international partnerships. Not all of Africa's security problems can be solved by Africa alone, but APSA does provide a vision framework for African and external partnership.