8 , the average T fire determined from Neolithic sites in both China and eastern Europe demonstrates a decreasing trend from the early to middle Holocene.
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The firing temperatures of burnt clay from the Chinese neolithic cultural relics and its paleoenvironmental imprints.
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The sentences
Notably, there was an increasing trend in Hcr/Hc between 200 °C and 580 °C, while the data for heating between 680 °C and 780 °C are obviously influenced by hematite nucleation during firing.