摘要:

The analysis by XRF applied to old coins is improved by use of monochromatic X‐ray excitation of variable energy. In addition the effects of relief and irregular shape are eliminated. A method of absolute quantitative analysis without any reference standard has been set up. Results of the analysis of 52 early Greek and 4 late Roman empire gold coins are reporte

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1984.tb00321.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Non‐destructive analysis of the major elements in copper‐alloyed artifacts by prompt gamma neutron activation analysis is reported. Copper, zinc, tin and lead were measured in several ancient Roman, Greek and Iranian objects. Good agreement was found in comparison with analysis of similar objects by destructive meth

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1984.tb00322.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

The routine measurement of tungsten concentrations in pottery sampled with tungsten‐carbide drill bits has enabled the measured concentrations of cobalt, tantalum, and lutetium to be corrected for drill‐bit contamination. The corrected data, for cobalt at least, are sufficiently accurate that they regain their value as chemical indicators of pottery provena

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1984.tb00323.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

The microstructures of two adzes, two hoes and a spear point from Iron Age settlement sites in the Kruger National Park have been examined. Electron microprobe analyses of the slag inclusions were also made. Some of the objects are made of high carbon steel while others have a highly variable carbon content. All appear to have been forged at relatively low temperature and then annealed at a low temperature near 700°C. None have been hardened by quenching and tempering. Some of the objects contain only traces of included slag while others have large slag inclusions. The slag compositions are quite different from those of medieval bloomery slags and are representative of African iron smelting practice in their high content of CaO, K2O and Na2O. On the basis of the titanium content of the included slag, two of the objects are identified as made of the ore from Rooiwater and one from Phalaborwa ore

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1984.tb00324.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1984.tb00325.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

ISSN:0003-813X    

DOI:10.1111/j.1475-4754.1984.tb00326.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY