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001-es BibID:BIBFORM063005
Első szerző:Kristály Ferenc
Cím:Mineralogical investigations of medieval brick samples from Békés county (Se Hungary) / Kristály Ferenc, Kelemen Éva, Rózsa Péter, Nyilas István, Papp István
Dátum:2012
ISSN:0003-813X
Megjegyzések:Brick samples from nine archaeological sites representing seven contemporary medieval settlements in Békés County (SE Hungary) were analysed by quantitative X-ray powder diffraction, optical microscopic, scanning electron microscopic and coupled thermal analytical ? evolved gas analytical methods. The aims of this study were to give a mineralogical?petrographical characterization of the brick samples, to gain possible information on the raw clay and the admixed materials, and to determine the firing techniques applied in medieval southeastern Hungary. The mineralogical composition of the samples suggests that the locally extracted clay was mixed with fluvial sand and wheat (Triticum monococcum L.) chaff. The moulded bricks were fired in clamps. The different degrees of calcite consumption suggest that the firing temperature ranged from ?750?C to ?950?C. Moreover, the well-developed reaction coronas on calcite grains indicate long firing times, lasting perhaps several days.
Tárgyszavak:Természettudományok Földtudományok idegen nyelvű folyóiratközlemény külföldi lapban
PETROGRAPHIC MICROSCOPY
SEM-EDX
X-RAY DIFFRACTION
VEGETAL REMNANTS
FIRING TECHNOLOGY
MEDIEVAL BRICKS
Megjelenés:Archaeometry. - 54 : 2 (2012), p. 250-266. -
További szerzők:Kelemen Éva Rózsa Péter (1956-) (petrográfus) Nyilas István (1956-) (biológus) Papp István (1980-) (vegyész)
Internet cím:DOI
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