ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00086.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSThe glazes and bodies of fifteen Persian ceramic objects datable to c. A.D. 1300 were analysed by X‐ray fluorescent and optical emission spectroscopyin order to test the veracity of parts of Abū'l‐Qāsim's treatise on pottery manufacture. The results showed that the bodies of these pots were closely akin to so‐called Egyptian faience, and it is suggested on the basis of textual evidence that this body was used in Persia before the Seljuq period to imitate Chinese pottery, and may have been developed either from beads o

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00087.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSX‐ray fluorescence analysis of 30 pieces of Anglo Saxon jewellery, from the Ashmolean Museum, Oxford, is followed by a comparison with similar results obtained from contemporary coinage. The standards of fineness for the coinage are applied to the jewellery and used to date its manufacture. An appendix describes repeatanalyses of some coins which, at first, had widely differing results from XRF and specific gravity method

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00088.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSPrevious work on iron‐arsenic alloys has shown that considerable superficial arsenic enrichment occurs during oxidation at high temperatures. This process is very likely to be the explanation for the layers of high arsenic concentration that have been observed in the microstructure of early iron artifacts by many workers.Experiments have been made to determine how far the alternative theory of the use of Fe‐As alloys as joining media could be responsible. It has been shown that Fe‐As alloys can in some cases facilitate joining but that when they do the resulting joint is embrittled. When the arsenic concentration is reduced sufficiently to avoid this there is then no advantage over the normal hammer welding without an arsenic interlayer. Similar experiments have been carried out with phosphorus and similar conclusions have been

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00089.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSThe trace element contents of 13 lead pigs and 20 water pipes, all of Roman origin, were determined by instrumental neutron activation analysis. The contents of Cu, As, Ag, Sn, Sb, and Au were determined with an experimental reproducibility of ±7%; the analytical values are given for all samples. The results are discussed with respect to the homogeneity of samples, the difference between pipes and pigs, the difference between bulk and joint material in pipes, and the possible correlation of the trace element contents with the place of origin

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00090.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSNeutron activation analysis has been employed for the characterization of Samian ware sherds. The analysed samples were classified in ten groups, seven of which belonged to the Arretine production, according to archaeological evidence. By means of high resolution gamma‐ray spectroscopy, 22 elements have been identified and analysed. Compositional characterization was looked for by taking counting rate ratios of different nuclides in the samples. The compositional pattern of the sherds was found to be fairly uniform both for each pot and for each group so that, at least in the examined cases, it can be assumed to be characteristic of a given worksho

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00091.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSNon‐destructive methods of chemical analysis always involve uncertainties, and in some circumstances they can be quite unsuitable for a true analysis. The greater value of a completely destructive chemical analysis and a comprehensive metallographic study for revealing the intentions of the moneyers and the entire metallurgical history of an ancient coin is demonstrated for the case of a rare silver‐coated debased silver issue of the early fourth century

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00092.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSCombination of the routine approaches of thermoluminescence dating, thefine‐grainandinclusionmethods, allows an age to be determined that is independent of knowledge of the environmental dose‐rate. This socalledsubtractiontechnique is exampled by several terracottas of museum origin and some pottery collected from archaeological contexts without associated burial media. Age determination is estimated to have an accuracy of around ± 12%, in favourable condit

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00093.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSA comparative study is made of the thermoluminescence (TL) of terracottas of the Renaissance era and some known limitations of such ware dating to the middle of the last century. The data shows that conclusions on authenticity of an unknown work can be reliably obtained using this scientific method. Also examples are presented of accurate dating of genuine terracottas despite a lack of knowledge about the environmental circumstances of each piece's archaeological past.

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00094.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY

摘要:

ABSTRACTSA technique is described by which the spatial distribution of uranium as well as of thermoluminescent minerals can be examined in the same archaeological sample. The uranium distribution is replicated on an aluminized plastic film with the help of a ‘spark counter’following reactor‐irradiation of the sample, while the TL pattern is photographed directly from a γ‐irradiated sample. Implications for dating from such a comparative examination are discussed for certain pottery and flint

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1973.tb00095.x

出版商:Blackwell Publishing Ltd    

年代:1973

数据来源: WILEY