AMS radiocarbon dates from occupation layers, Xincun site.

Note:
§ALS is Ancient Living Surface. Half life of carbon is 5568 and BP is before 1950. Tree ring curve for calibaration is IntCalo4(1), and progremee for calibartion is OxCal v3.10(2).
• Reimer PJ, MGL Baillie, E Bard, A Bayliss, JW Beck, C Bertrand, PG Blackwell, CE Buck, G Burr, KB Cutler, PE Damon, RL Edwards, RG Fairbanks, M Friedrich, TP Guilderson, KA Hughen, B Kromer, FG McCormac, S Manning, C Bronk Ramsey, RW Reimer, S Remmels, JR Southon, M Stuivers, S Talamo, FW Taylor, J van der Plicht, and CE Weyhenmeyer. 2004 Radiocarbon 46:1029–1058.
• Christopher Bronk Ramsey 2005, www.rlaha.ox.ac.uk/orau/oxcal.html.

注意：
§ALS即古存活表面（Ancient Living Surface）。碳的半衰期为5568年，BP指公元1950年之前。校准所用的树轮曲线为IntCalo4(1)，校准程序为OxCal v3.10(2)。
• Reimer PJ、Baillie MGL、Bard E、Bayliss A、Beck JW、Bertrand C、Blackwell PG、Buck CE、Burr G、Cutler KB、Damon PE、Edwards RL、Fairbanks RG、Friedrich M、Guilderson TP、Hughen KA、Kromer B、McCormac FG、Manning S、Bronk Ramsey C、Reimer RW、Remmels S、Southon JR、Stuiver M、Talamo S、Taylor FW、van der Plicht J及Weyhenmeyer CE。2004年《放射性碳》（Radiocarbon）第46卷：1029–1058。
• Christopher Bronk Ramsey，2005年，网址：www.rlaha.ox.ac.uk/orau/oxcal.html。