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GEOCHEMICAL CHARACTERIZATION OF ARCHAEOLOGICAL LIME MORTARS: PROVENANCE INPUTS*
Author(s) -
ORTEGA L. A.,
ZULUAGA M. C.,
ALONSOOLAZABAL A.,
INSAUSTI M.,
IBÁÑEZ A.
Publication year - 2008
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.1475-4754.2007.00360.x
Subject(s) - provenance , mortar , lime , carbonate , archaeology , chemical composition , mineralogy , geology , archaeological science , raw material , characterization (materials science) , dolomite , materials science , geochemistry , metallurgy , chemistry , geography , organic chemistry , nanotechnology
Chemical and mineralogical analyses were carried out on historical lime mortars from the parish church of Santa María La Real (Guipúzcoa). The study included various periods ranging from Roman to modern times and allowed the identification of various types of raw materials. In order to obtain pure binder, free of carbonate aggregates and charcoal particles, an innovative binder separation method was implemented. The chemical composition of the binder allows discrimination of different provenance areas for the raw materials, although those areas do not correlate with specific historical periods. In addition, the influence of burial processes on the primeval chemical features has been assessed and reveals that modern mortars display greater chemical modification than the Roman mortars.