000029722 001__ 29722
000029722 005__ 20150420164414.0
000029722 0248_ $$aoai:doc.rero.ch:20120904091308-ZP$$punifr$$ppostprint$$prero_explore$$particle$$zthesis_urn$$zreport$$zthesis$$zcdu1$$zbook$$zjournal$$zcdu16$$zpreprint$$zcdu902$$zdissertation$$zcdu34
000029722 041__ $$aeng
000029722 080__ $$a902
000029722 100__ $$aKönig, Daniela$$uDepartment of Geosciences, University of Fribourg, Switzerland
000029722 245__ $$9eng$$aRoman double-layered crucibles from Autun/France: a petrological and geochemical approach
000029722 269__ $$c2012-07-23
000029722 520__ $$9eng$$aEighteen double-layered crucible fragments found in an archaeological excavation site of the Lycée militaire (Autun/France), which dates to the Gallo-Roman period, were analysed with a series of classical mineralogical techniques in order to obtain knowledge about the raw materials of the individual layers. This work focuses on the usage of the crucibles as well as technical aspects of their production. The crucible fragments were studied by using petrographical (optical microscopy), elemental (SEM-EDS, EMPA, XRF-WDS) and mineralogical (XRD) techniques.The two main layers of the crucibles are made of high refractory, kaolinite-based ceramic with granite-related temper grains. The analytical and petrographical results show remarkable differences between these two layers. The outer one is dominated by a high content of vitrified mullite-bearing matrix and contains analcime which was formed during the burial stage. In contrast, the inner layer is characterised by a non-vitrified matrix with a high content of orthorhombic mullite, β-cristobalite and α-quartz. An engobe is detectable in the majority of the fragments. The mineral composition allows an estimation of the firing temperatures, which have reached approximately 1200 up to 1400 °C.
000029722 695__ $$9eng$$aRoman crucibles ; Double layered wall structure ; Multiple usage ; Mullite ; Cristobalite ; Autun
000029722 700__ $$aSerneels, Vincent$$uDepartment of Geosciences, University of Fribourg, Switzerland
000029722 773__ $$g2012///-$$tJournal of Archaeological Science
000029722 775__ $$gPublished version$$ohttp://dx.doi.org/10.1016/j.jas.2012.07.011
000029722 8564_ $$fser_rdl.pdf$$qapplication/pdf$$s1113427$$uhttp://doc.rero.ch/record/29722/files/ser_rdl.pdf$$yorder:1$$zpdf
000029722 918__ $$aFaculté des sciences$$bDécanat, Ch. du Musée 6A, 1700 Fribourg$$cGéosciences
000029722 919__ $$aUniversité de Fribourg$$bFribourg$$ddoc.support@rero.ch
000029722 980__ $$aPOSTPRINT$$bUNIFR$$fART_JOURNAL
000029722 990__ $$a20120904091308-ZP