The present paper reports a laboratory analysis of 44 samples of pottery shards that represent the five phases of remains on the Qin'an Dadiwan site. The work was to inquire into their chemical composition and the...The present paper reports a laboratory analysis of 44 samples of pottery shards that represent the five phases of remains on the Qin'an Dadiwan site. The work was to inquire into their chemical composition and the phase of part of minerals by using X-ray fluorescene analysis and X-ray diffraction analysis, as well as to classify the pottery shards by applying major components analysis and cluster analysis. The results suggest that the pottery of Dadiwan I is principally sandy and clay wares,featuring unevenness in firing temperature and impurity in surface color. In the second phase, part of clay ware was made of refined clay, and there prevailed black-painted red ware. The Dadiwan pottery is quite complex in the chemical composition of the body and probably contains objects coming from the outside.展开更多
文摘The present paper reports a laboratory analysis of 44 samples of pottery shards that represent the five phases of remains on the Qin'an Dadiwan site. The work was to inquire into their chemical composition and the phase of part of minerals by using X-ray fluorescene analysis and X-ray diffraction analysis, as well as to classify the pottery shards by applying major components analysis and cluster analysis. The results suggest that the pottery of Dadiwan I is principally sandy and clay wares,featuring unevenness in firing temperature and impurity in surface color. In the second phase, part of clay ware was made of refined clay, and there prevailed black-painted red ware. The Dadiwan pottery is quite complex in the chemical composition of the body and probably contains objects coming from the outside.