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[Last update: 04.02.2008]
[ AV 8,1 ]
Weathering phenomena on pottery, flint and bones.
Part 1: Weathering phenomena on pottery.
The influence of embedding sediments on the elemental composition of fired clays.
Rolf C. A. Rottländer
Paperpack
Because of its fixed types and standardisation the production site of Roman potteries often remains unknown, which is a lack of information with regard to mobility, trade and dating. As a solution, chemical analyses can answer the question how the element pattern of pottery sherds is changed by dissolution and corrosion processes of the clay matrix, when they rest in the ground. The starting point for the investigation of this problem was material from a Roman pottery at Cologne-Am Hahnentor. It produced white wares of clays from Frechen which were exported as far as England. The original element pattern was reconstructed from well preserved Roman sherds, modern so-called Bartmannsware with a firing temperature of 1.200° which allows no changes of elements, and a clay analysis of the deposits. Badly preserved Roman pottery provided the changed patterns, for which the quotient of element / Ti [insoluble titan dioxide] is calculated. Through humus components, silicic acid is transformed into soluble esters, other elements [K, Rb] leave the dissolving clay by diffusion processes, which causes the sherd to become porous and adsorb phosphate.
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| Content: | 140 pages, 44 illustrations, 42 tables, 4 plates | Cover: | Paperback | |
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| Text: | German | Size: | 17,0 x 24,0 cm (8°) | |
| Abstracts in other languages: | none | weight: | 300 g | |
| Keywords: | Germanic provinces of the Roman empire, pottery, raw material, weathering | Series: | Archaeologica Venatoria | |
| ISSN: | 1611-3594 | |||
| Postdoctoral thesis | Universität Tübingen, 1987 | ISBN-13: | 978-3-921618-29-5 | |
| ISBN-10: | 3-921618-29-0 | |||
| Place of Publication: | Tübingen [Verlag Archaeologica Venatoria] | |||
| Date of Publication: | 1989 | |||