The use of stucco decoration on buildings has become popular in Iran from the first century but from the second century onwards stucco decorations were painted in bright colors. An important group of the Parthians Painted Stuccoes excavated in the 1965-79 and 2008 in Qal‘eh-i Yazdigird. Qal'eh-i Yazdigird is a Parthian Palace Stronghold in the Zagros range of mountains in western Iran. At Qal'eh-i Yazdigird the decoration includes geometric, figural, vegetal and architectural motifs. Much of the stucco decorations were vividly painted. Some of the fragments are Polychrome. These colors consist of green, deep blues, pink, deep reds, orange, brown, purple and yellow. These were analyzed for the first time within in 2013 in Iran. The pigments red ochre and yellow ochre (identified by the presence of the main chromophores hematite and goethite), Egyptian blue and green earth (terre-verte glauconite) were found on decorated surfaces. FTIR, X-ray diffraction (XRD) and Petrography methods have been used to study the characterize pigments used in the stucco decoration.
The highland plains of western Iran have been investigated with varying intensity. The Sarfirouzabad plain, located in the south of Kermanshah province, although visited perfunctorily, has not previously been studied systematically, despite desirable ecological and environmental conditions. In 2009, a team from the University of Tehran conducted a systematic and intensive field survey in the region to identify archaeological settlements and to assess their location concerning ecological, environmental and cultural factors impacted the distribution of sites on the plain. The surveyed area was walked in transects at 20-metre intervals and resulted in the identification of 332 archaeological sites from different cultural periods, which added much to the limited knowledge about the history of this region. During this survey, Pa-Chogha as the biggest tell site in the area, was identified. Fifty-nine samples of pottery and five stone tools were collected from the surface of Pa-Chogha dated from Late Chalcolithic to Islamic periods. Unfortunately, due to the expansion of Pa-Chogha village, the site is in danger of being destroyed. Our aim to publish this article is to introduce the Pa-Chogha as an important site for the chronology of Central Zagros at first, and preventing the further destruction of this site at the second.
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