NATUFIAN TRADE/EXCHANGE IN BASALT IMPLEMENTS: EVIDENCE FROM NORTHERN ISRAEL*

Three Natufian base camps in Israel—el-Wad, Hayonim and Eynan—have nearby basalt sources, but K/Ar ages indicate that their inhabitants obtained implements, made of Miocene-Pliocene and Quaternary basalts, further afield. The nearest locations, in which raw material sources representing the whole range of dated basalts occur within a relatively restricted area, are to be found east of the Jordan Valley, suggesting movement of the material some 100 km to el-Wad, 60 km to Hayonim and 20 km to Eynan. The exact nature of these longdistance contacts and the underlying social and economic systems and mechanisms are yet to be determined.     

ARAMAIC BASALT STATUES FROM TELL HALAF,SYRIA: LOCATING THE ANCIENT QUARRIES

Tell Halaf is the locality of the ancient Aramaic city of Guzāna (c. 1000–800 bc ) in Syria. The statues of Tell Halaf were made from monolithic basalt blocks, comprising massive as well as amygdaloidal types. However, the exact location of the original quarries was as yet unknown. Reconnaissance mapping and sampling concentrated on the four basaltic centres in the vicinity of Tell Halaf, covering both south‐eastern Turkey and north‐eastern Syria. In addition, basaltic artefacts from the two archaeological sites of Tell Beydar (c. 2700–2300 bc ) and Djebelet el Beda (c. 2600–2350 bc ) were investigated. All basalt samples were analysed for their bulk rock major and trace element compositions by X‐ray fluorescence, ICP–MS analysis and the mineral chemistry of individual minerals by combined electron microprobe analysis and laser‐ablation ICP–MS. The data show that basalt works of art from all three archaeological sites were derived from the Syrian basalt plateau of Ard esh‐Sheikh, approximately 57 km south of Tell Halaf. Accordingly, this basalt quarry was actively exploited over a considerable time span of c. 1900 years. This study demonstrates that petrographic and geochemical investigations of basalt, combined with electron microprobe and laser‐ablation ICP–MS analysis of minerals, are powerful tools to discriminate between possible sources of raw materials, especially if isotopic data yield unsatisfying results.     

Geochemical sourcing of basalt artifacts from Kaua‘i,Hawaiian Islands

We report on energy-dispersive X-ray fluorescence (EDXRF) sourcing of 807 basalt artifacts and 34 basalt ecofacts recovered from stratified midden at Nu‘alolo Kai, Kaua‘i. These data are compared with EDXRF analyses of 473 alluvial pebbles from Waimea Canyon, 34 adzes from the Kaua‘i Museum, and published geochemical data for Kaua‘i basalts. Formal tools, such as adzes, chisels, and mirrors were predominantly manufactured from sources not available at Nu‘alolo Kai. Most adzes and chisels are consistent with sources available elsewhere on Kaua‘i, but two basalt mirrors are outside the expected geochemical range of Kaua‘i basalts. In contrast, almost all expedient tools were manufactured from basalts available at Nu‘alolo Kai. These findings support the existence of an island-wide distribution system for adze material on Kaua‘i, and challenges extant models of pre-contact Hawaiian economics to consider the mechanisms through which specialized commodities were produced and distributed.     

FINGERPRINTING ANCIENT EGYPTIAN QUARRIES: PRELIMINARY RESULTS USING LASER ABLATION MICROPROBE-INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY*

Microchemical analysis of minerals present in pottery and stone artefacts may help determine their provenance. Electron microprobe major element analyses of augite suggest that minor elements (Ti0₂,MnO, Aa₂O) are important in fingerprinting basalts. This points to the potential usefulness of trace elements. Augite present in six basalt samples (representing all known/suspected Pharaonic basalt quarries in northern and middle Egypt) and basaltic temper fragments in two New Kingdom pottery sherds was analysed for 28 trace elements (Sr, Ba, Th, U, Zr, Hf, Nb, Ta, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu. Sc, V, Cr, Ni, Ga) by laser ablation microprobe-inductively coupled plasma-mass spectrometry (LAM-ICP-MS, laserprobe). Cluster and discriminant analysis indicate that (1) laserprobe trace element data are more effective at fingerprinting basalts than conventional electron-microprobe data and (2) basaltic temper in the two sherds does not match any of the quarries. Microbeam techniques providing trace element data may represent the future for mineral-based provenance studies.     

REPRODUCIBILITY OF ELEMENTAL ANALYSES OF BASALTIC STONE ARTEFACTS BY QUADRUPLE ICP–MS USING DIFFERENT SAMPLE SIZES AND DIGESTION METHODS,WITH IMPLICATIONS FOR ARCHAEOLOGICAL RESEARCH

Using high‐precision inductively coupled plasma mass spectrometry (ICP–MS), we measured >40 elements in basalts sampled by diamond micro‐drills to evaluate the effectiveness of different digestion methods and the reproducibility of elemental analysis for different sample sizes from 5 mg to 100 mg. The results indicate that those elements that are most suitable for geochemical characterization, such as rare earth elements (REE), high‐field strength elements (HFSE) and certain mobile elements (Rb, Sr, Th, U), show excellent reproducibility with an average relative standard deviation (RSD) of 3% between open‐beaker and pressured ‘bomb’ digestion methods. This observation rules out the presence of refractory phases such as zircon, which can only dissolve in pressured ‘bombs’, and suggests that the results from open‐beaker digestion are reliable. The ICP–MS data for powders of different weights ranging from 10 to 100 mg collected from two fine‐grained basalt artefacts display excellent reproducibility, with a RSD of <5% for the most important elements. The reproducibility is reduced when including the 5 mg weight fraction (RSD of ～2–9%), which is still sufficient for archaeological applications. Our results demonstrate the usefulness of 10 mg samples for elemental measurement, which is valuable for geochemical characterization and sourcing of fine‐grained basalt artefacts from museum collections that require minimal destructive sampling.     

Shipwreck Evidence from Kilwa,Tanzania

This article reports on the artefacts and environment of marine ballast and pottery sites identified through inter‐tidal and underwater survey around Kilwa, Tanzania, one of the most important medieval sultanates along the east African coast. An inter‐tidal site on the limestone fringing reef on the approaches to Kilwa Kisiwani Harbour and an underwater site within the harbour have been dated from associated pottery to c.8th–10th century and the 13th–16th century respectively. The presence of exotic basalt ballast is discussed as an indicator of wreck‐sites.     

Reading back from Experimental Painting

ABSTRACT

My book, Experimental Painting (1970), was the product of a decade of coming to terms with the history of modern art and with contemporary manifestations of the avantgarde. While at Cambridge from 1960 to 1967, I published art criticism, initially in locally published magazines, and then went on to review art exhibitions both nationally and internationally. This led to being co-editor of Form, which produced further opportunities. The term ‘experimental’ that I adopted in 1970 was intended to suggest the paradigm of scientific discovery which suited some, if not all, of the artists I studied. This article considers concepts directly imported from contemporary scientific enquiry that seemed relevant to me at the time, notably those from experimental psychology, psychoanalysis and structural linguistics. I relate them to the character of intellectual life at Cambridge in a period which saw much debate about the relationship between Sciences and Humanities as ‘Two Cultures’.     

Marbles,granites and basalt used in the cruciform basilica of Abila (Decapolis,Jordan): archaeometric characterization and provenance

The provenance of granite, basalt, and marble used in building the cruciform basilica of Abila of the Decapolis, northwestern Jordan, is investigated using chemical and petrographic techniques. The basilica is dated to the late fifth or early sixth century AD. The stones were characterized using macroscopic traits in combination with optical microscopy, X-ray diffraction, and stable oxygen and carbon isotope spectrometry. These data were compared to the published databases for marbles, granites, and basalts used in antiquity. The comparison showed that the basalts are most probably local. The islands of Marmara (Proconessos-1), Turkey, are the primary source of the white marbles, while Paros island (Paros-2), Greece, is a minor source. The source of the green Cipollino marbles is Styra in the island of Euboea (Greece). The pink and gray granites are likely microasiatic from the Çigri and Kozak Dâgs, respectively, northwest Turkey.     

Troublemakers: Laura Poitras and the problem of dissent

This review article considers three works by the distinguished documentary film‐maker Laura Poitras: My country, my country (2006); The oath (2010); and the recently released Citizenfour (2014), focusing on the whistle‐blower Edward Snowden. Poitras describes these works as a trilogy about American power after 9/11, but they are also about disobedience and resistance, or the problem of dissent. The article argues for the significance (and the virtue) of Poitras's project, as film maker and troublemaker, and for the necessity of what Solzhenitsyn calls civil valour.     

Non-destructive pXRF of mafic stone tools

Archaeological use of non-destructive pXRF has been most systematically applied to the classification and provenancing of volcanic glass (obsidian) artefacts. Comparable work has yet to be developed for non-vitreous artefacts. We report results of pXRF analysis for a sample of grey to black (mafic) aboriginal hatchets from Sydney and adjacent coastal regions to the north and south. The study shows both broad and detailed classification is achievable depending on rock type and degree of elemental depletion or enrichment of the samples. PXRF analysis reveals not only distinct patterns of resource use between the three regions of this study but also enables a high degree of geographic resolution in the case of the basalt artefacts of our sample. We conclude that non-destructive pXRF is effective for reliable characterisation of non-vitreous stone artefacts that have a sufficiently complex and enriched compositional signature (i.e., unaltered basalts); with ∼50% of the basalt hatchets in our sample matched with spatially and geologically specific sources.     

Chemical characterization of ancient pottery from sudan by x‐ray fluorescence spectrometry (xrf), electron microprobe analyses (empa) and inductively coupled plasma mass spectrometry (ICP–MS)*

Sixty‐four sherds and seven natural clays from prehistoric sites in northwestern Sudan have been submitted to petrological and chemical analysis using XRF spectrometry, EMPA and ICP–MS. According to their texture, the sherds form five different groups. The high contents of P₂O₅ (more than 0.5 wt%) discerned in 19 samples and the variation of the P₂O₅ content in two samples of the same vessel can be explained by post‐depositional processes or by the ancient organic contents (e.g., milk) of the vessel. Chemical classification of the pottery bulk suggests that vessels were made locally, as only sherds from the same area show homogeneity of data.     

Vitrification of basalt orthostats and mud building components from Tilmen Höyük (south-eastern Turkey): an experimental and geoarchaeological approach

Finds of basalt orthostats and mud building components from the archaeological site of Tilmen Höyük (south-eastern Turkey, early 2nd Millenium BC) preserve a glassy crust formed by vitrification of the material. It is proposed that such features are related to destructive fire events, which destroyed the wooden building elements and burned natural stones. The geoarchaeological and experimental approach confirms this hypothesis. The geochemical composition of experimental melts is comparable to that of natural basalts. Spot analyses evidence the heterogeneity of the melts, especially for mudbricks and ceiling plasters. It is concluded that the investigated finds were subjected to strong burning under oxidising conditions reached during a violent fire. Temperatures similar to those derived by experimental melting (1180–1195 °C) were likely reached in the fire at Tilmen in order to produce the glass observed.     

Numerical simulations of amethyst geode cavity formation by ballooning of altered Paraná volcanic rocks,South America

Numerical modelling by finite element methods provides two significant insights into the formation of the giant amethyst geodes of the Paraná volcanic province: the conditions needed to open the cavities and the conditions that control their size and shape. Giant amethyst geodes were formed in the Cretaceous (135 Ma) in altered volcanic rocks by water vapour pressure (Δp) at about 0.5 MPa under an altered basalt cover of 5–20 m. Only rocks with Young’s modulus values (E) in the range 1–2 GPa can sustain ballooning, which is the growth of a cavity in a ductile medium by the pressure of water and its vapour. The size of the proto‐geode is dependent on the water vapour pressure, which is directly related to thickness of the overlying basalt. Varying the yield points causes the formation of either prolate or oblate cavities. A low transition point (smaller than 0.18 MPa) generates a prolate‐shaped cavity, whereas a high transition point (larger than 0.18 MPa) generates oblate proto‐geodes. Proto‐geodes are smaller when Young’s modulus is higher (rock is less altered) or when water vapour pressure is lower (because of thinner overburden of basalt). The calculations are an indication that the processes operative in the altered basalts led to the opening of giant cavities by ballooning.     

A Bronze Age Quarry in Eastern Crete

Abstract

The sandstone quarry at Mochlos is one of four major quarries in eastern Crete that were worked during the New Palace Period of Minoan civilization (ca. 1700–1450 B.C.) to produce large ashlar blocks for nearby Minoan sites. At that time sandstone, or ammoudha, as it is known locally, was especially valued as a building material, partly because of its distinctive color and texture, but mainly because of the ease with which it could be cut, and the stone was used extensively for exterior façades, for walls around interior courts, and for other architectural features of the more important buildings on these sites. This article describes the quarry at Mochlos in some detail, including the quarrying techniques employed, and argues that the destination of the stone from the Mochlos quarry was the Minoan palace at Gournia. The article ends with a comparison of the four ammoudha quarries in eastern Crete.     

Verifying the Reliability of Lithic Use-Wear Assessments by ‘Blind Tests’: the Low-Power Approach

Abstract

Several freshly knapped pieces of fine-grained basalt were utilized by an experimenter for a large variety of tasks. The tools were then submitted to an analyst, who was ignorant of the uses to which each of the objects had been put. Employing low-power microscopic techniques, he was able to identify with reasonable accuracy the used part(s) of the implements, the prehended part(s), the activities in which the pieces had been engaged, and the relative resistance of the materials worked. It is argued that low-power micro-wear techniques have several advantages, among which are ease and speed of analysis and availability of equipment. The methods selected for any use-wear analysis of stone tools, however, must be adapted to the particular situation and the questions to be asked of the data.     

Urban law—I

In this essay, I aim to identify and analyze the influence of Cartesian dualism on Rembrandt's pictorial representations of the self. My thesis is that Descartes and Rembrandt share concerns about philosophy's exploration of human nature, concerns rooted in mind–body dualism. Descartes's corpus bears witness to a growing skepticism about the relation between matter and extension. Likewise, Rembrandt's anatomy lessons lead the viewer to question the value of treating humans as scientific objects. I suggest that by reexamining Rembrandt's work in light of the mind–body problem we generate a fuller understanding of Rembrandt's artistic critique and expression and Descartes's mature scientific thinking and abiding influence. My analysis centers on four Rembrandt paintings: The Anatomy Lesson of Doctor Nicolaes Tulp (1632); The Descent from the Cross (1632–1633); The Sacrifice of Abraham (1635); and The Anatomy Lesson of Doctor Joan Deyman (1656).     

Sailors and Slaves: The ‘Poor Enslaved Tar’ in Naval Reform and Nautical Melodrama

This article explores the rhetorical comparison of naval sailors' exploitation to that of African slaves in pre- and early-Victorian discourses on naval reform. It is structured around an analysis of J.T. Haines's nautical melodrama My Poll and My Partner Joe (first performed 1835), in which the hero, having been press-ganged by the navy, risks his life freeing enslaved Africans on the Middle Passage even though he considers himself a slave to his nation. This plot was both timely and provocative: first performed in the immediate aftermath of the illegalization of slavery in Britain's colonies, it dramatizes an analogy between slaves and sailors that was contested by campaigners for naval reform and their opponents. Ultimately, My Poll and My Partner Joe palliates radical commentary on sailors' rights, in its second and third acts, as the sailor patriotically celebrates his freedom in antithesis to African slavery. Rather than read its denouement simply as romantic escapism, I argue that it proposes resolutions to conflicts that had arisen in British understandings of slavery and freedom, and racial and national identity, as a result of the debate on naval reform. To researchers of imperial, humanitarian, and working-class cultures and identities of the nineteenth century, this article reveals the underlying importance of ‘race’ and slavery to debates on maritime labour. It further highlights the complex, dialectical character of pre- and early-Victorian representations of sailors – on the stage and beyond it.     

The “informer” and the political and organisational culture of the Irish republican movement: old and new interpretations

This article will analyse recent interpretations of the “informer” as a subject of political and historical significance for a balanced understanding of the trajectory of the Provisional Republican movement. It will do so in part through a discussion of some recent fiction and memoir-writing devoted to the figure of the informer. Specifically, this will involve an exploration of the recent fictional re-imagination of the real-life case of Denis Donaldson, by the French journalist Sorj Chalandon (Mon traître, 2007 and Retour à Killybegs, 2011) (These novels have been translated into English as My Traitor (2011) and Return to Killybegs (2013)). All subsequent references are to the English versions. In the first section, the article analyses the historical evolution of the phenomenon and recent revelations regarding the apparently widespread existence of informers in the movement during the Troubles. This section engages with the academic debate concerning the effects of these revelations upon the morale and internal political culture of the republican movement; it is argued here that the “Republican family” has been significantly affected by these disclosures in the “post-conflict” era, and that they have become an important element in the contestation between leadership supporters and “dissenters” within contemporary republicanism. The second section utilises old and new literary representations of “the informer”, particularly based around Liam O’Flaherty’s The Informer and Chalandon’s work, to discuss continuities and changes in the image and perception of this phenomenon. It is argued that the interweaving of fiction with real-life and factual historical detail is a particularly appropriate means of interpreting the role and effects of the informer.     

Single carcass of Mammuthus primigenius with lithic artifacts in the Upper Pleistocene of northern Italy

This paper presents the find of a Mammuthus primigenius carcass and associated Mousterian implements from the Last Glacial site of Asolo, in north-eastern Italy. We review the exploitation of proboscidean carcasses at Lower and Middle Paleolithic sites of Africa, Europe and the Levant, including evidence of elephant killing, and summarize recent research on hafting and use of Mousterian points as spearheads already before the end of the Middle Pleistocene. The bones and implements from Asolo are described in detail; we provide information on other Italian sites with mammoth remains and on the Mousterian record of the north-eastern quadrant of the peninsula. A possible impact fracture has been detected on a Levallois point from Asolo; its interpretation is based on comparisons to similar scars found on spear points of verified function from archaeological sites of later age, and on experimental material. We conclude that the evidence of Asolo is consistent with information from a number of Western European sites supporting a picture of Neanderthals as capable hunters of large game, such as woolly mammoth.