BAYESIAN ANALYSIS OF PLEISTOCENE CHRONOMETRIC METHODS*

Bayesian analysis of radiocarbon dates on Holocene archaeological sites has become well established. Application to Pleistocene sites dated by multiple techniques would be advantageous. This paper develops the necessary mathematical apparatus in the form of likelihoods for luminescence dating, and uranium‐series dating, and considers the possibility for amino‐acid racemization dating. Application of the new methods is illustrated using the stratigraphic sequences of dates from the sites of Saint‐Césaire and La Chaise‐de‐Vouthon. For application to amino‐acid racemization dating, fuller publication of data is found to be required.     

The circulation of precious metals in the Arab Empire: the case of the near and the Middle East*

The analysis by nuclear activation techniques and by inductively coupled plasma mass spectrometry combined with an UV laser of a large number of gold coins issued in the Arab Empire from the seventh to the 12th century ad showed that several different supplying sources were used, according to the region and to the period. The aim of this paper is to point out the circulation of gold in the Near and Middle Eastern mints of the Arab Empire and to make a parallel with the mints’ policies running in the other regions of the Empire, such as North Africa, the Iberian Peninsula and the Sicily. The identification of different gold ores by means of characteristic trace elements indicated recycling of the ancient coinage and, after ad 750, the minting in the entire Arab Empire of different new gold ores: Egyptian type, North Eastern type and West African type. The analysis of a small number of silver coins from the same periods and regions also showed a change in the ore supply after ad 750.     

X-RAY FLUORESCENCE CHARACTERIZATION OF THE CORONA FERREA*

X-ray fluorescence (XRF) analyses of metals, glasses and enamels from the Corona Ferrea, or Iron Crown, of Monza are reported. The method followed to obtain quantitative analysis of metal alloys was based on comparison with standards and it is framed on the more general problem of XRF quantitative analysis of irregularly shaped objects with a portable instrument. Preliminary radiocarbon dating results are also reported.     

DETECTING CHANGES OF CELTIC GOLD SOURCES THROUGH THE APPLICATION OF TRACE ELEMENT AND Pb ISOTOPE LASER ABLATION ANALYSIS OF CELTIC GOLD COINS*

This project follows on from an initial study of Celtic gold coins from the Middle Rhine/Moselle region, which was based on material found at the Martberg, a Late Iron Age/Roman sanctuary and settlement (River Moselle, western Germany; Bendall 2003 ). The earlier work was expanded to encompass over 100 examples of various other regional Celtic gold coinages from the collection of the Römisch‐Germanisches Zentralmuseum, Mainz. The alloy (Au–Ag–Cu) and trace element compositions (in particular Ni, Sb and Pt) were determined by EPMA and LA–ICP–MS, respectively, and their Pb isotope signatures were measured by LA–MC–ICP–MS. Of the 28 trace elements measured, only Ni, Sb and Pt were found to show meaningful variations and so only they are presented here. In particular, differences in the Pt/Au ratios between various groups of earlier coinage (imitations of Philippus and Alexander/Nike staters, Sch. 23 and some early Boian coins) on the one hand, and the majority of the Boian and the southern rainbow cup coinages on the other, indicate a significant difference in the gold sources exploited for these regional coinages. The Pb isotope data confirm previous conclusions that the contribution of gold to the total lead in the Au–Ag–Cu coin alloys can be detected, especially for coins with over 70% gold, and show that possible gold sources include both eastern Mediterranean and Alpine sources. Combining the Pb isotope data with the Pt/Au ratios allows the potential gold sources to be further differentiated.     

Archaeology and Politics in the Holy Land: The Life and Career of P. L. O. Guy

Abstract

Philip Langstaffe Ord Guy's (1885–1952) career in archaeology began as Woolley's assistant at Carchemish and as Chief Inspector for the Department of Antiquities of Palestine during the 1920s. He is best known as director of the Megiddo Expedition (1927–1934), where he employed innovative techniques in balloon photography, and provided a highly influential identification of the pillared buildings found there as stables. He dated these buildings to the Solomonic era, sowing the seeds of a long-running debate over the role of the Bible in archaeological interpretation. Guy was later appointed director of the British School of Archaeology in Jerusalem (1935–1939), initiating the short-lived Archaeological Survey of Palestine. After World War II and Israel's War of Independence, Guy became a senior figure within the fledgling Israel Department of Antiquities and Museums as Director of Excavations and Surveys. Active involvement in Zionist politics through his marriage into the Ben-Yehuda family was a controversial factor that impacted on his career within 1920s and 1930s Palestine. Recent archival research allows an assessment of Guy's double life as archaeologist and political activist and the degree to which these areas intersected. His name can be added to the diverse spectrum of archaeologists working in the Holy Land during this formative but turbulent colonial and post-colonial era.     

STATISTICAL ASPECTS OF POTTERY QUANTIFICATION FOR THE DATING OF SOME ARCHAEOLOGICAL CONTEXTS*

This paper describes some statistical analyses of a particular archaeological material (pottery) originating at some sites in the city of Tours. An important part of the archaeological study of pottery is the comparison of ceramic assemblages to establish the absolute dates of contexts. In this paper, a statistical model is built to assess this comparison. The statistical procedure uses classical tools (correspondence analysis, linear regression and resampling methods) in an iterative scheme. Archaeologists may find in the paper a useful set of known statistical methods, while statisticians can learn a method of ‘arranging’ well‐known techniques. No method is new, but their combination is characteristic of this application.     

2009 Cultural Heritage Legal Summary

Abstract

In 2009, nearly 55 years after the U.S. participated in the drafting of the first international convention to exclusively address the protection of cultural property, the U.S. ratified the 1954 Hague Convention on the Protection of Cultural Property in the Event of Armed Conflict. New developments concerning the U.S.’ implementation of the 1970 UNESCO Convention on the Means of Prohibiting and Preventing the Illicit Import, Export and Transfer of Ownership of Cultural Property through its legislation, the 1983 Convention on Cultural Property Implementation Act, continue to expand and test the parameters of the role of the U.S. in this international treaty regime. Finally, claims, recoveries, and restitution of looted, smuggled, and stolen cultural artifacts continued.     

The Ideologization of the Child: Zdeňka Bezděková and Marie Majerová

Abstract

This article traces the changes in two novels, Zdenňka Bezděková’s ?íkali mi Leni and Marie Majerová’s Bruno, made once the Communist-Party regime in Czechoslovakia was firmly established. For example, German paedophilia is changed to bullying in Bezděková and pre-war Czech political antisemitism deleted from Majerová. In both works Czech nationalist misoteutonism is changed into internationalist Communism. The author pays close attention to changes in language and style in both works. Though Majerová’s novel seems no longer to be read, Bezděková’s remains standard reading for adolescents, and in the twenty-fi rst century continues to be read with its somewhat rabble-rousing afterword by the novelist Karl Nový. The essay demonstrates how children can be made into things rather than people for the sake of a political ideology.     

DETECTING FORGERIES AMONG ANCIENT GOLD OBJECTS USING THE U,Th–4He DATING METHOD*

Forgeries of ancient gold objects are prevalent in almost every collection and some public exhibitions in the past have been exposed as containing forgeries to an embarrassing extent. This situation comes from the fact that it is sometimes impossible to unequivocally recognize forgeries based on their patina or manufacturing and decoration characteristics. We demonstrate that for 13 ancient gold objects the time of their last melting process can be estimated using the U,Th–⁴He dating technique. The extremely small quantities of radiogenic ⁴He found, due to the young age and small sample size, require the use of a specially designed ultrasensitive mass spectrometer. We show that the proposed method is a powerful, and the only, quantitative tool in archaeometry for discriminating between fake and genuine ancient gold objects.     

GILDINGS AND FALSE GILDINGS OF THE BAROQUE AGE: CHARACTERIZATION AND CONSERVATION PROBLEMS

This work investigates the decayed decoration of the ‘Vergine del Carmelo’ chapel, with a particular interest in the residual gildings. Samples of the finishing layers were examined by VIS‐UV optical microscopy and scanning electron microscopy coupled with EDX spectrometry, in order to evaluate the unusual degradation phenomena. Mineralogical composition of the stucco substrate was characterized by X‐ray diffraction (XRD) and FTIR spectroscopy. The results showed the unexpected presence of a thick layer of brass flakes, applied without any binder, used as a substitute for the damaged original gold leaf, and highlighting a very uncommon selective corrosion process of the brass.