期刊
JOURNAL OF ARCHAEOLOGICAL SCIENCE
卷 34, 期 4, 页码 666-673出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jas.2006.07.008
关键词
Raman microscopy; pigments; stucco; archaeology; Copan; Maya
Micro-Raman spectroscopy has been applied to painted stucco samples from three buildings at the Maya site of Copan, Honduras. The buildings, Clavel (AD 450-550), Am (AD550-650) and Structure 10L-22 (AD730) date from three phases of the Classic Period (AD400-820) acropolis construction. The red pigment has been identified as haematite and the stucco as a mixture of calcite particles dispersed throughout a calcite based lime wash stucco. The physical structure of the stucco changed through time, indicating a refining of production techniques over this period. By combining Micro-Raman spectroscopy with other micro-ATR infrared spectroscopy and environmental scanning electron microscopy a detailed investigation of the materials and production techniques used to decorate these buildings has been made. Differences in the mineralogy of the red pigment used on each building indicate a different geological pigment source for each period. (c) 2006 Elsevier Ltd. All rights reserved.
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