TECHNOLOGY AND PROVENANCE OF A COLLECTION OF ISLAMIC COPPER‐BASED OBJECTS AS FOUND BY CHEMICAL AND LEAD ISOTOPE ANALYSIS*

Chemical and lead isotope analyses were utilized to determine the composition, technology and origin of a collection of Islamic copper‐based objects found in Jordan. The atomic absorption spectrometry results show that the objects were made of different types of copper‐base alloys that contain various amounts of zinc, tin and lead. The use of brass, highly leaded brass and quaternary alloys of Cu‐Zn‐Sn‐Pb in the manufacture of everyday, household objects strongly points to Islamic traditions. The lead isotope compositions of the objects match very well that of the copper ore mined from the Dolomite‐Limestone‐Shale unit of the Arabah copper mines.     

Late Carboniferous to Early Permian brachiopod faunas from the Bachu and Kalpin areas,Tarim Basin,NW China

Terrestrial reptile remains are very rare in the Lower Cretaceous of South Australia, but include the holotype of the small theropod Kakuru. Here, we review this taxon and other archosaur specimens collected from the Bulldog Shale (Aptian) of Andamooka and Coober Pedy. Kakuru possesses no unique characters or character state combinations and is regarded as a nomen dubium, representing an indeterminate tetanuran theropod. Two other specimens (a left metatarsal and astragalus) can be referred to Dinosauria, but the identity of several other specimens (phalanges and a centrum) can only be resolved to the level of an indeterminate archosaur.     

Tanzania's endangered heritage: A call for a protection program

There is no doubt that heritage resource loss in Tanzania is proceeding at an alarming rate. Natural and human agencies, adverse storage infrastructures and techniques, and lack of trained conservators and curators and of a proper protection program are the major threats that endanger the heritage resources of Tanzania. As our natural and cultural environments bring irreparable damage to the resources that document our human history, we need to preserve and protect them before they vanish. A preservation and protection program for Tanzania should include public education, the establishment of heritage preservation laws, more progress in the inventory and protection of in situ heritage resources, research into preservation and conservation methods, training of staff, and improvements in the curation of collected heritage resources and records. Preservation and protection of heritage resources are collaborative exercises. The scientific and world community need to support and engage in this proposed program both technically and financially, if the preservation and protection of heritage resources in Tanzania are to succeed.

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Résumé Il ne fait pas de doute que la perte des ressources du patrimoine historique se poursuit à un rythme alarmant en Tanzanie. Les agents naturels et humains, des techniques et des locaux de conservation inadaptés, el manque de conservateurs bien formés et d'un programme de sauvegarde adéquat sont les principales menaces qui pèsent sur les biens historiques et culturels en Tanzanie. Comme notre environnement naturel et culturel provoque des dommages irréparables aux sources historiques, nous devons les préserver et les protéger avant qu'elles ne disparaissent. Un programme de préservation et de protection pour la Tanzanie devrait inclure l'éducation du public, l'adoption de lois relatives à la sauvegarde du patrimoine, de nouveaux progrès dans l'inventaire et la protection in situdes vestiges, des recherches sur les méthodes de préservation et de conservation, la formation des responsables et l'amélioration des conditions de conservation et de récolte des objets et de la documentation. La préservation et la protection des vestiges du patrimoine impliquent une large collaboration. Pour arriver à la préservation et à la protection des ressources du patrimoine tanzanien, el faut que la communauté scientifique et mondiale s'implique et soutienne ce projet à la fois techniquement et financièrement.

     

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.     

BOOK REVIEWS

Book Reviews in This Article: Trois ?uvres Inédites de mystiques musulmans: āqq? al-Bal?, Ibn ?, Niffarā. By Paul Nwyia. The Formative Period of Islamic Thought. By W. Montgomery Watt. The Arab Mind. By Raphael Patai. l?m? al-Adab al-M?r f? Mir? (Bio-bibliographical Critical Series), No. 1, h?āūsayn. By Hamdi Sakkut and Marsden Jones. A History of the Crusades. Kenneth M. Setton, general editor. Volume III, The Fourteenth and Fifteenth Centuries , edited by Harry W. Hazard. The Muslim Dilemma in India. By M. R. A. Baig. Who is Maudoodi ? By Maryam Jameelah. A Tacit Alliance. By S. K. Crosbie.     

Lead Isotope Analyses Revealed the Key Role of Chang'an in the Mirror Production and Distribution Network During the Han Dynasty

Chang'an (now Xi'an) was the capital of the Western Han Dynasty and the starting point of the Silk Road. In the light of the importance of Chang'an as the centre of politics, economy and cultural interaction, the overarching question proposed in this paper is focused on its role in the mirror production and distribution network during Han period. On the basis of chemical and lead isotopic analyses of 34 Han mirrors, this paper discusses the potential existence of a mirror production centre in Chang'an. Meanwhile, a comparative study with mirrors uncovered from the south‐western frontier and from Central Asian and North‐East Asian countries offers new insight into these related issues.     

Experimental Heating of Moravian Cherts and its Implication for Palaeolithic Chipped Stone Assemblages

The applicability of colour, magnetic susceptibility and remanent magnetization measurements for the identification of heated or accidentally burned Palaeolithic cherts from Moravia (Czech Republic) is tested in this study. We conclude that all these methods are usable. Colour changes are best detectable in materials heated at between 250–350°C, while magnetic susceptibility and remanent magnetization change at higher temperatures, closer to 600°C. This latter temperature, however, is usually destructive for cherts and is probably evidenced by accidentally burned artefacts. With the use of the three methods, we managed to identify three probably heated chert artefacts from two early Upper Palaeolithic assemblages from Moravia.     

The Experimental Study of Palaeolithic Heat‐Treatment Technology: A Case from the Shuidonggou Rock Resources,North‐West China

The application of heat‐treatment technology on lithic raw materials is an important feature of early modern human behaviour. The evidence of heat‐treated stone artefacts discovered at Localities 2 and 12 of the Shuidonggou Late Palaeolithic site, North‐West China, provides an important example for studying this technology among ancient humans in Asia during the Late Palaeolithic. The mechanism and effects of heat treatment on raw materials and the role of this technology in producing stone tools were studied by means of a simulation experiment and related analytical methods. These facilitated an in‐depth analysis of the heat‐treatment activities of the Shuidonggou occupants and their implications for cognitive ability and survival strategies of human populations at that time.