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Mineral analysis of river sand around Mt. Tsukuba for provenance estimation of Atamadai type pottery (2500–1500 BC) from Hinoki site (Tochigi, Japan)
Published online by Cambridge University Press: 08 April 2019
Abstract
A total of 77 pottery shards originating from the Middle Jomon period (2500–1500 BC) were excavated from the Hinoki site in Tochigi, Japan. Fifty-five of those were Atamadai type pottery, which might contain some temper fragments from the manufacturing process. The pottery shards were analyzed by X-ray diffractometry (XRD). The mineral analyses were compared with the river sands around Mt. Tsukuba to demonstrate the temper's origin of the Atamadai type pottery. Their XRD profiles revealed the following solid solutions which could be fingerprint minerals: biotite for the temper and plagioclase, and hornblende for the clay and temper. These minerals might indicate the origin of each sample because their d-spacings depended on the solid solution composition reflecting their geological characteristics.
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- Copyright © International Centre for Diffraction Data 2019