ION BEAM ANALYSIS OF COPPER AND COPPER ALLOY COINS

In recent years ion beam techniques have become more and more important since in most cases the analysis of copper and copper alloy coins has to be non-destructive. It is therefore of interest to study the relative advantages of several nuclear methods for a certain type of metal. The results are presented here of a comparison between three non-destructive ion beam techniques: particle induced X-ray emission, proton activation analysis and fast neutron activation analysis.     

COPPER AND COPPER ALLOYS IN ANCIENT TURKEY: SOME NEW ANALYSES

This note presents some new analyses for 13 early copper and bronze artefacts from Turkey in the Collection of the Ashmolean Museum, Oxford. They were not included in a small programme of early copper and bronze objects from Iraq, Syria and Palestine (Moorey and Schweizer 1972, Archaeometry 14 (2), 177–198) and conclude this pilot-project.     

COPPER AND COPPER ALLOYS IN THE SOUTHEASTERN ALPS: AN OVERVIEW*

In recent years, several groups of archaeological metal finds from the areas around the southeastern Alps, dated between Bronze Age and Roman times, have been scientifically analysed (by ICP, AAS and/or XRF) within the framework of different projects. The data now available give a fairly good general picture of the evolution and development of metallurgy in this area and seem to indicate that the region played an important role in the exchange of objects and raw materials over many centuries. The significance of some of the metal finds, which are particularly relevant for this research, is discussed.     

IRON IN ANCIENT COPPER

Analysis of early copper-base artifacts invariably reveals traces of iron. Iron enters the copper during the smelting process and the level of iron in the metalwork is an indication of the smelting technology. In areas such as Western Europe where prehistoric slag heaps are absent even in the proximity of undoubted ancient mines, the iron content is low reinforcing the link between smelting technology and iron content. Very occasionally the iron content was deliberately encouraged and alloys containing between 30% and 50% of iron in copper were made, mainly for use in currency. These alloys are without modern parallel and their metallography and method of production are considered in some detail here.     

COPPER AND COPPER ALLOYS IN ANCIENT IRAQ,SYRIA AND PALESTINE: SOME NEW ANALYSES

In a pilot-programme to increase evidence for the history of copper-alloying in ancient Iraq, Syria and Palestine 128 objects in the Ashmolean Museum, Oxford, were tested with a point-source linear X-ray spectrometer for tin, arsenic and antimony. These analyses showed the gradual introduction of tin-copper alloys into Iraq after ca. 2750 b.c. (Early Dynastic IIIA), into Syria a little later and into Palestine by the end of the third millennium b.c. , though numerous artefacts continue to be of copper or arsenical-copper until well into the second millennium b.c. at least. With the appearance of tin-copper alloys the percentage of arsenic in the copper objects noticeably declines indicating that the earlier arsenical-coppers were deliberately produced under controlled conditions.     

LEAD ISOTOPE CHARACTERISTICS OF THE CYPRUS COPPER ORE DEPOSITS APPLIED TO PROVENANCE STUDIES OF COPPER OXHIDE INGOTS

Nearly 200 new lead isotope analyses of sulphidic and oxidized ores from 26 copper mines on Cyprus show that the mines from different geological regions group in five distinctive isotopic groups, each with a substructure, related to the geological history of the ore formation. Comparison of lead isotope compositions of Bronze Age artefacts with these data can in many cases reveal the actual mines from which the copper for particular artefacts was obtained. The particular case of the provenance of the copper for 78 Late Bronze Age copper ‘oxhide ingots’found in Cyprus, Crete, Greece, Sardinia, Turkey and Bulgaria is discussed. The data show that all oxhide ingots so far analysed, dating to the fourteenth century BC and later, were made of copper consistent isotopically with only one mining region in the geographical north of Cyprus, and especially the Apliki mine. The study provides further evidence which supports the validity of the conventional approach to the use of lead isotope analysis for provenancing metals; this evidence is antithetical to recent suggestions of a model for the production of copper oxhide ingots which involved widespread mixing of copper from a number of ore sources throughout the Mediterranean.     

PREHISTORIC COPPER PRODUCTION IN THE INN VALLEY (AUSTRIA), AND THE EARLIEST COPPER IN CENTRAL EUROPE*

In recent years archaeological finds and scientific analyses have provided increasing evidence for a very early beginning of copper production in the rich mining area of the Tyrolean Alps. The earliest findings derive from an excavation of a multi‐phase settlement on the Mariahilfbergl in Brixlegg, which revealed evidence that a small amount of fahlores, probably of local provenance, was at least heated if not even smelted there in the Late Neolithic Münchshöfen culture (the second half of the fifth millennium bc ). However, most copper finds of this horizon consist of low‐impurity copper that most probably derives from Majdanpek in Serbia. This long‐distance relationship is corroborated by typological features that link some aspects of the Münchshöfen culture with the Carpathian basin. Thus it is not yet clear if, at Brixlegg, actual copper production took place or, rather, an experimental treatment of the local ores. The typical fahlore composition, with arsenic and antimony in the per cent and silver and bismuth in the per mille ranges, appears in quantity only in the Early Bronze Age. Many thousands of Ösenringe are known from many central European Early Bronze Age sites, with a chemical composition typical of fahlores. At Buchberg near Brixlegg, a fortified settlement with slags from fahlore smelting proves that the local ores were indeed exploited. The lead isotope ratios of Ösenringe from the Gammersham hoard in Bavaria, which consist of fahlore copper, confirm this and suggest that copper mining and production in the Inn Valley reached a first climax during that period. In the Late Bronze Age, copper was produced at an almost industrial level.     

ANGLO-SAXON COPPER ALLOYS FROM LECHLADE, GLOUCESTERSHIRE

Summary. A range of copper-alloy artefacts from the early Anglo-Saxon cemetery at Lechlade were analysed using X-ray fluorescence. There were few pure bronzes or brasses in the assemblage and most alloys contained significant amounts of zinc, tin and lead in variable ratios. In view of the current theory that supplies of new metals and ores were limited and Anglo-Saxon metalworkers normally used scrap metal, the compositions were used to assess the techniques of the craftsmen supplying this community. It is concluded that re-use of copper alloys was prevalent but that metals were selected quite carefully for particular applications, with regard to the metallurgical characteristics required.     

COPPER AGE DITCHED ENCLOSURES IN CENTRAL IBERIA

Summary. The interpretation of European Neolithic enclosures must take account of their wide variability in chronology, size, shape, topographical position and material. Such interpretations should rely on the comparative analysis of the processes at work in particular regions. Newly recovered data from small early third millennium cal BC ditched enclosures in central Iberia, with high densities of features and domestic refuse, support the hypothesis of permanent habitation. This paper argues that the variability in late Neolithic–Chalcolithic enclosures throughout Iberia is a result of the cycling of fission and fusion characteristic of segmentary social dynamics.     

贵州“半分铜元”--中国铜元的绝唱

《中国硬币标准图录·贵州硬币》称,贵州“当银元半分”铜元是中国大陆最后铸造流通的铜元。可惜该书仅刊载了一种版式。其他国内外出版发行的铜元书刊,也只简单地将它划分为大字、小字或黄铜、紫铜两类。     

安徽九星十文铜圆

在对安徽九星十文铜圆作介绍之前,首先应说明的是,此币在命名上有所欠妥,所谓“九星”实为“十八星”之误。“十八星”是辛亥革命时期革命军军旗的图案,它是由当时的革命团体共进会在武昌起义前设计的。其十八个星象征着当时中原的十八个省,把十八个圆星联成一体,寓有十八省     

SERIPHOS SURFACES: A STUDY OF COPPER SLAG HEAPS AND COPPER SOURCES IN THE CONTEXT OF EARLY BRONZE AGE AEGEAN METAL PRODUCTION

Kephala and Phournoi, on the island of Seriphos, add to a growing number of EBA metal production sites identified in the south‐central Aegean. Analytical examination of samples from the two sites addressed the technological parameters of the copper smelting process, indicating the use of mixed oxidic and sulphidic copper–iron ores to produce unalloyed copper with minute copper sulphide inclusions. A preliminary geological reconnaissance of the island identified several small copper mineralizations, one of them close to the site of Kephala. Nevertheless, the ore sources used remain unclear. Comparisons are made with other contemporaneous neighbouring smelting sites.     

清代云南广西府铸运京钱始末

一、广西府① 铸运京钱缘起清初 ,京局铸造制钱所需铜材主要为从国外尤其是日本进口的洋铜。康熙后期之后 ,因日本限制铜材出口 ,每年需要 44 0万斤铜材铸造制钱的宝泉、宝源两局顿感铜材缺乏。虽然清官府采取了各种变通办法 ,但依然没有解决问题 ,各省纷纷拖欠需本省采办的铜材。恰此时云南铜矿 (滇铜 )又兴盛起来 ,雍正五年 ( 172 7)时 ,产量已达到每年 3 0 0万斤左右。雍正六年 ( 172 8) ,为弥补洋铜之不足 ,清官府将 10 0万斤滇铜运至汉口 ,以备湖南、湖北采买 ,10 0万斤滇铜运至镇江 ,以备江苏采买。雍正七年( 172 9) ,江苏因滇铜成色…     

ANCIENT EGYPTIAN BLACK‐PATINATED COPPER ALLOYS*

This analytical study aims to investigate ancient Egyptian black‐patinated copper alloys. The study group was selected from the collections of the Egyptian Museum in Cairo and from the Faculty of Archaeology Museum in Cairo University. Examination and analysis were undertaken using optical microscopy (OM), scanning electron microscopy (SEM), energy‐dispersive spectroscopy (EDX), X‐ray diffractometry (XRD), X‐ray fluorescence analysis (XRF) and Fourier transform infrared spectroscopy (FTIR). The analysis results indicated that the black patina contained mainly tenorite (CuO). The study presents evidence of thermal patination and animal glue coating.     

A FRESH LOOK AT A LITTLE-KNOWN SOUTHEASTERN COPPER PLATE

Abstract

Chauga (38OC47) is a mound site now under Lake Hartwell at the head of the Savannah River in Oconee County, South Carolina. Excavations in 1958–1959 by the University of Georgia recovered a Mississippian copper plate. Upon comparison to others of its kind, it is clear that this lesser-known plate encompasses some interesting design features, most notably the presence of the only known depiction of a chunkey stone on copper. We have recently created a more accurate representation of its design. The plate appears to portray many similarities to depictions of Birdman dancers: kilted dancers and dancing elders within the “Stack” style. Birdman themes are common in Mississippian iconography. Given the importance that copper plates have for interpreting Mississippian art and belief systems, this updated examination provides useful new information for researchers studying Mississippian iconography.     

THE EXCHANGES OF COPPER IN THE ANCIENT MIDDLE EAST

Introduction In Anatolia, the birth and the development of metallurgy intervened between the 9th and 3rd millenniums as well as testify the more and more frequent apparitions of metals artefacts in the inventory of the archeological objects of this period.     

中国古代损钱取铜的历史考察

所谓“损钱取铜”,即通过磨鑢、剪凿等方式,从铜钱上取铜谋利的行为。取铜量以不过分影响铜钱的正常流通为标准,是种对铜钱适度减重的做法,它不同于使铜钱彻底退出流通的“毁钱取铜”。损钱取铜是存在于中国古代铜钱流通中的重要现象,几乎与古代铜钱的行用相始终。本文试图通过对发掘报告和钱币实物的考察,勾勒出中国古代损钱取铜的特征及其演变轨迹,进而揭示其对当时钱币铸造形制的影响。粗成小文,求正于方家。一、战国时期的损钱取铜情况战国处于中国铜铸币的滥觞期,此时损钱取铜的现象就已存在。根据出土实物,以齐地的“截首刀”最为明显…     

COMPLEX SOCIETIES IN COPPER AND BRONZE AGE IBERIA: A REAPPRAISAL

This paper starts from the conviction that it is not only important to study long-term processes of change in a particular area, but to analyse the extent to which other areas have been implicated and affected by the processes occurring in it. The study of the emergence, maintenance and even disappearance of social complexity in the Iberian Peninsula during the Copper and Bronze Age has lacked such an approach. As a result, on the one hand it seemed that South-east Spain and Portuguese Estremadura, the two areas where it was argued complexity first appeared, were isolated from each other and from the rest of the Peninsula during the Chalcolithic, and on the other, changes in the geographical distribution of complex societies in the Bronze Age had not been explained. This article reassesses these arguments and aims to show that it was not only intrinsical factors which provoked the social changes which took place in the various areas during the Chalcolithic and Bronze Age. Extrinsic factors were on occasion as if not more important. In addition, new data published in recent years has been used to give a broader picture of the expansion of complex societies in the Iberian Peninsula.