Fig. 8From: Changes and continuity in pottery production and use at Wujiafentou in the core zone of Youziling and Shijiahe cultures in central ChinaBiplots of log-transformed concentrations of Zr, Rb, Sr, Cr, and Ca for the Youziling-period and Shijiahe-period pottery from Wujiafentou and 25 hong tao bei from Sanfangwan. Drawn with an 80% confidence ellipseBack to article page