黄铜器表面着色方法的研究

在总结古代铜器表面处理的文献基础上一通过化学成膜探讨含锌32％－36％的黄铜试样表面着色的方法,通过调整和控制试液的浓度、温度、酸度及浸泡时间的实验,确定黄铜表面栗色膜形成的最佳条件。对表面形成的粟色膜用多种实验手段进行了测定,结果表明栗色股厚度约为8μm主要组成为Cu2O。并对化学过程中形色栗色膜的机理作了初步探体     

X-ray fluorescence analysis of late Roman and Sassanian silver plate

About 200 analyses have been made on late Roman and Sassanian silver objects using energy-dispersive X-ray fluorescence. This has shown that the main feature of the composition of the silver throughout the period and across the geographical area studied was towards high fineness (average silver percentage about 95%). Compositional differences are found between Roman and Sassanian silversmiths' products for the elements copper and lead. Much of the material analysed came from hoards, and using a statistical technique on the analytical data (Discriminant Analysis) broad compositional differences between hoards were found to emerge. The use of different compositions of silver for different joined parts of a single object are discussed.     

Politics and Eschatology: Reassessing the Appeal of the “Jewish Indian” Theory in England and New England in the 1650s

This article examines the “Jewish Indian” theory — which claimed that American Indians were the ten lost tribes of Israel — in 1650s England and New England. The theory found support in England while failing in New England. This difference in reception can be explained by considering its ecclesiological, political, and eschatological implications. Biblical commentators in both England and New England held to a form of “Judeo‐Centric” eschatology, which looked for a sudden, miraculous conversion of the Jews and their eventual superiority to Gentile believers. Such beliefs undermined crucial elements of New England ecclesiology when applied to Native Americans. Conversely, the New England Company used the theory in its publications as a fund‐raising tool in England. These publications impacted upon debates on Jewish readmission to England in the mid‐1650s, with New England missionary models suggested as a way of evangelising Jews. This article therefore argues for the importance of understanding eschatological beliefs in local contexts, while demonstrating the way in which such beliefs can be maintained and reoriented in the face of apparent disconfirmation.     

A technological study of ancient faience from Egypt

The chemical compositions and microstructures of some 35 faience objects from Egypt spanning the period from the Middle Kingdom through to the 22nd dynasty are determined using analytical scanning electron microscopy. Replicate faience beads glazed in the laboratory using the efflorescence and cementation methods are similarly investigated. In efflorescence glazing, there appears to be preferential efflorescence of soda over potash, and in cementation glazing, preferential take up of potash over soda into the glaze. These data are then used to try to infer the raw materials and methods of glazing employed in the production of the ancient faience. The glaze/glass phases present in the faience differ significantly in composition from that of New Kingdom glass. This could be due either to the use of different plant ashes or to changes in the composition of the plant ashes during the production of faience and/or glass. Although it is only rarely possible to determine with certainty whether ancient faience was glazed by efflorescence, cementation or application, the observed microstructures provide an indication of the approach adopted to achieve desired performance characteristics such as strength.     

Ethinicity and Identity in the Archaeological Record (Reconstruction of an Excavation Completed in 1937 on a Chickasaw Village Site in Northeast Mississippi)

This article presents the restitution of an operation of excavation carried out in 1937 by Moreau Chambers on the site of a Chickasaw village. The objective of my research is to carry out a new analysis of the documents of the old excavations, to answer the interrogations concerning the way of life of Chickasaw at the beginning of the historical period and to reconstitute a site plan for this Chickasaw village. This operation included/understood also the handing-over of repatriated bodies. I also discuss the way in which my implication in this project interacted with my identity as a Chickasaw woman. The restitution of the operation of excavation, repatriation, and associated research contributed to show to the Chickasaw people the ways in which the law can help them. I finish this article by discussing the implications on the long term of the operation of Chambers for the modern archaeologists, the Chickasaw people, and Chickasaw who are themselves archaeologists.     

Identification of Green Pigment Used in Persian Wall Paintings (ad 1501–1736) Using PLM,FT–IR,SEM/EDX and GC–MS Techniques

The technique of oil painting was introduced to Iran via a cultural exchange with Europe in the Safavid period (ad 1501–1736). Since the first attempt at scientific conservation of wall paintings in Iran in the 1960s, the nature of green pigment used in Persian wall paintings has not been clear, although work on contemporary miniature paintings has identified malachite and verdigris. PLM, FT–IR, SEM/EDX, GC–MS and the study of contemporary historical treatises of the Safavid period were the main tools used in the present study to identify the green pigments in Persian (oil‐based) wall paintings. Eight samples taken from the two famous Safavid buildings, Chehel Sotoon Palace and the Sukias House in Isfahan, were analysed. Here, the identification of copper‐based pigment and of verdigris in oil as oleate amends the existing knowledge of the green pigment used in these paintings. It also suggests that oleate was introduced to Persian artists via the European influence on Persian painting as a result of cultural exchange in the Safavid period, when the technique of Persian painting changed from tempera to oil painting. However, as verdigris in oil and resin can appear as oleate over time, it is unknown whether the Persian artists did this deliberately or accidentally.     

Indigenous Exceptionalism under Fire: Assessing Indigenous Soldiers in Combat with the Australian,Canadian, New Zealand and American Armies during the Second World War

The literature on Indigenous participation in the Second World War from Canada, the United States, Australia and New Zealand has tended to portray Indigenous soldiers as exceptionally able and courageous in battle. While heart-warmingly laudatory and an understandable product of genuine evidentiary challenges in researching this subject, the image constructed is partial and unrealistic. At best it is misleading; at worst it conflates indigeneity and combat proficiency in ways that reinforce racial stereotypes of Indigenous people as ‘natural’ warriors prevalent during the war. This article argues that we discard the exceptionalism enshrouding Indigenous combat performance in favour of a more culturally nuanced approach.     

The Hopi,the katsinam,and the French courts: looking outside the law in the repatriation of Indigenous cultural heritage

Katsinam (plural of katsina) are effigies central to the religion of the Hopi people of northern Arizona in the United States. Since 2013 the Hopi have sought the return of katsinam being sold in French auction houses. The Hopi have employed a series of legal actions to stop the auctions. All such actions, however, have been consistently denied by French courts. This paper uses social science analysis to understand why the legal actions of the Hopi failed. This paper treats the case of the katsinam as a cautionary lesson in cultural heritage studies, with the goal of drawing insights that can inform other situations involving the repatriation of Indigenous cultural heritage.     

On the Origin of the Green Colour of Archaeological Bone Artefacts of the Gallo‐Roman Period

Recent findings in the city of Reims have lead to the discovery of manufactured bone objects coloured in green throughout their entire volume. In order to discover the intentional nature of the colouration and to propose a colouration mechanism, modern ox bones have been coloured in the laboratory. Bones with a hue similar to that of the archaeological artefacts have been obtained by boiling in an acidic brine in a copper vessel. A combination of infrared spectroscopy, X‐ray diffraction and transmission electron microscope observations did not reveal the speciation of copper, but allowed us to validate the colouration process and to discuss the intentional origin of the colouration.     

中国钱币博物馆部分陈列银币、铜币的腐蚀产物及成因研究

为探讨部分陈列银币、铜币腐蚀产物及其成因,采用三维视频显微镜、扫描电镜-能谱(SEM-EDS)、X射线荧光(XRF)、X射线衍射(XRD)等方法,对中国钱币博物馆部分遭受腐蚀的展陈钱币的腐蚀产物进行了分析,并通过红外光谱(FT-IR)对展陈材料进行了分析,最后对硫的来源进行了初步分析。结果表明,银币和铜币的腐蚀产物均含有硫化物,银币(银铤)的腐蚀产物为硫化银,铜币的腐蚀产物中主要为铜的硫化物,此外还含有铜的氧化物。经分析,展柜中的黏合剂氯丁胶在光照和较高温湿度条件下能分解并释放出硫化氢气体,因而初步判断银币或铜币的腐蚀产物是由于展柜内材料产生的硫化氢与银币或铜币反应生成。