Discerning differences: Ion beam analysis of ancient faience from Naukratis and Rhodes

Faience technology was known in Egypt since the Predynastic Period and practiced for a period also in Bronze Age Greece, but, having been lost, was reintroduced to the Greek world only in the first half of the first millennium BC. The Greek island of Rhodes and the Greek-Egyptian trade harbour of Naukratis in the Nile Delta are suspected to be key centres of early Greek-style faience production, exporting amulets and vessels across the Mediterranean region. Yet the nature and scale of their production and their role in technology transfer, vis-à-vis Egyptian and Levantine/Phoenician production, remain little understood. The main aim of this study was to discover whether it is possible to define chemical characteristics for the faience produced and found at Naukratis, and to use this data to differentiate between artefacts produced here and elsewhere.A programme of ion beam (PIXE and PIGE) analysis was conducted under the CHARISMA transnational access scheme, known to be a suitable tool for studying ancient vitreous artefacts as it provides a non-destructive means of obtaining precise and accurate quantitative compositional data. Both the internal body of damaged objects as well as the outer glaze layer were analysed, of which only the latter are discussed here. The results of this study indicate that the faience found at both Naukratis and on Rhodes is compositionally similar. However, some small differences were found in the raw materials used in its production which may help us to better characterise the production of different faience manufacturing centres.La technique de la faïence, connue en Égypte depuis la période prédynastique et utilisée également pendant un certain temps en Grèce à l’âge du Bronze, s’est perdue ensuite. Elle ne fut réintroduite dans le monde grec que vers la première moitié du Ier millénaire av. J.-C. On pense que l’île grecque de Rhodes et le port marchand gréco-égyptien de Naucratis dans le delta du Nil furent de grands foyers de production de faïences, exportant des amulettes et des vases dans tout le pourtour méditerranéen. Cependant, la nature et l’ampleur de leur production restent mal connues, de même que leur rôle dans la diffusion des techniques de fabrication en Égypte et au Levant/Phénicie. Cette recherche avait pour principal objectif de savoir s’il était possible de déterminer les caractéristiques chimiques des faïences fabriquées et découvertes à Naucratis, afin de mieux discerner les différences entre les objets produits sur ce site et ailleurs.Nous avons pu conduire des analyses par faisceaux d’ions (méthodes PIXE et PIGE) dans le cadre du programme européen CHARISMA d’accès transnational, offrant un outil adapté à l’étude des objets antiques vitrifiés, car c’est un moyen non-destructeur de recueillir des données quantitatives précises et fiables sur la composition des matériaux. Nous avons analysé aussi bien la pâte, à l’intérieur d’objets abîmés, que la glaçure extérieure, et c’est cette dernière qui est décrite ici. Les résultats de notre étude font apparaître une composition similaire pour les faïences découvertes à Naucratis et à Rhodes. Quelques petites variations découvertes dans les matières premières employées pourraient faciliter la caractérisation des faïences fabriquées dans les différents foyers de production

Effects of eight neuropsychiatric copy number variants on human brain structure

Many copy number variants (CNVs) confer risk for the same range of neurodevelopmental symptoms and psychiatric conditions including autism and schizophrenia. Yet, to date neuroimaging studies have typically been carried out one mutation at a time, showing that CNVs have large effects on brain anatomy. Here, we aimed to characterize and quantify the distinct brain morphometry effects and latent dimensions across 8 neuropsychiatric CNVs. We analyzed T1-weighted MRI data from clinically and non-clinically ascertained CNV carriers (deletion/duplication) at the 1q21.1 (n = 39/28), 16p11.2 (n = 87/78), 22q11.2 (n = 75/30), and 15q11.2 (n = 72/76) loci as well as 1296 non-carriers (controls). Case-control contrasts of all examined genomic loci demonstrated effects on brain anatomy, with deletions and duplications showing mirror effects at the global and regional levels. Although CNVs mainly showed distinct brain patterns, principal component analysis (PCA) loaded subsets of CNVs on two latent brain dimensions, which explained 32 and 29% of the variance of the 8 Cohen’s d maps. The cingulate gyrus, insula, supplementary motor cortex, and cerebellum were identified by PCA and multi-view pattern learning as top regions contributing to latent dimension shared across subsets of CNVs. The large proportion of distinct CNV effects on brain morphology may explain the small neuroimaging effect sizes reported in polygenic psychiatric conditions. Nevertheless, latent gene brain morphology dimensions will help subgroup the rapidly expanding landscape of neuropsychiatric variants and dissect the heterogeneity of idiopathic conditions

Cult and trade. A reflexion on Egyptian metal offerings from Naucratis

This volume in which this chapter appears presents 16 papers that explore aspects of the economic and religious life of the northwestern Nile Delta in the first millennium BC. The papers concentrate on presenting new research on a range of material culture—ceramics, coins, weights, statuettes, statues, royal decrees and abandoned ships—from the on-going excavations of Thonis-Heracleion, a now submerged port-city on the edge of the ‘Sea of the Greeks’. This research is put into its local context through number of additional papers, including this one on Naukratis, the river-port upstream of Thonis-Heracleion

Karnak: Settlements

At Karnak, in addition to the well known temples, there is another type of architecture: the settlements. They are a testimony of the everyday life of the ancient Egyptians for which remains have been found throughout all of the temples of Karnak. Continuous occupation from the First Intermediate Period until the Late Roman Period is well attested at different locations in the complex of Karnak. Settlements are easily recognizable by their use of brick, especially mud-brick. The artifacts and organic remains found during new excavations of settlements give us a good idea of the inhabitants and their daily life

Karnak: Settlements

At Karnak, in addition to the well known temples, there is another type of architecture: the settlements. They are a testimony of the everyday life of the ancient Egyptians for which remains have been found throughout all of the temples of Karnak. Continuous occupation from the First Intermediate Period until the Late Roman Period is well attested at different locations in the complex of Karnak. Settlements are easily recognizable by their use of brick, especially mud-brick. The artifacts and organic remains found during new excavations of settlements give us a good idea of the inhabitants and their daily life

Egypt and Greece: early encounters

A chapter on early encounters between Egypt and Greece in the catalogue that accompanied the 2016 British Museum exhibition, Sunken Cities: Egypt's Lost World

Le quartier des prêtres à l'est du Lac Sacré dans le Temple d'Amon de Karnak

PARIS4-BU Serpente (751052129) / SudocSudocFranceF

Ostraca

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(Re)sources: Origins of metals in Late Period Egypt

Metal trade and access to raw materials during the Late Bronze Age—roughly covering the New Kingdom in Egypt—have received substantial attention from past and present scholarship. Despite copper and lead remaining essential commodities afterwards, our knowledge about their supply during the Iron Age and later periods, in contrast, remains limited, even if it has improved recently. This paper presents the results of a pilot project investigating the possible sources of lead and copper available to Egypt during the Late Period (664–332 BCE), a period of intense contact and exchange between Egypt and the Mediterranean world. In the context of this research, a wide range of artefacts from Naukratis, a major cosmopolitan trading hub in the Western Nile Delta founded in the late 7th century BC, were analysed to determine their chemical composition and lead isotope ratios. They mostly consist of metal finds—including a crucible slag—but also some locally produced faience objects which used lead and copper to colour the glaze. Additional samples include metal objects and lead ores from Tell Dafana, a Late Period settlement in the Eastern Delta, and contemporary Egyptian or Egyptianizing bronzes from Cyprus. A total of 39 objects were analysed with a combination of lead isotope and elemental analysis, yielding surprising results for the likely origins of the copper. While Cyprus, an expected source for copper, is identified for one object, the copper deposits from Faynan or from northwestern Anatolia offer the best match for most finds, including those found in Cyprus. The lead analysed seems to originate from a variety of mines, particularly from Laurion in Attica, and mines in the northern Aegean and/or northwestern Anatolia, with one example possibly from a lead‑silver mine located in central Iran. The multiplicity of lead sources reflects the complexity of international trade in the Eastern Mediterranean at the time. The study offers a valuable insight into the trade networks of Egypt and, by extension, the whole of the ancient Mediterranean. A larger-scale project investigating objects from a wider range of sites in the Eastern Mediterranean world could revolutionize our understanding of metal trade and concomitant economic, political and social developments in the first millennium BC