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X‐RAY DIFFRACTION OF EARLY IRON AGE POTTERY FROM WESTERN NORWAY
Author(s) -
STOUT A. M.,
HURST A.
Publication year - 1985
Publication title -
archaeometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.716
H-Index - 67
eISSN - 1475-4754
pISSN - 0003-813X
DOI - 10.1111/j.1475-4754.1985.tb00365.x
Subject(s) - pottery , chlorite , illite , geology , archaeology , clay minerals , period (music) , mineralogy , art , geography , paleontology , quartz , aesthetics
X‐ray diffraction has been used to analyse the surfaces and cores of sherds from pottery from Voss and Etne. two late Roman‐early Migration Period sites in western Norway. Results show: (1) the presence of illite and illite/smectite in black‐burnished ware from inhumation graves which suggests that this ware was never subjected to temperatures as high as 375°C, (2) the absence of these heat‐sensitive clay minerals in red ware from cremation graves at these sites which suggests a secondary firing at 700–800°C, (3) the clay minerals are similar in the cores and surfaces of the black pottery which suggests that the colour differences are due to firing procedures rather than the application of a slip, and (4) chlorite is present in all of the samples which is an indication that the ware originated in a Voss workshop where chlorite is present in other pottery found there and in the local geologic deposits.