TABLE 1.
Radiocarbon dates of the investigated sites in the NETP during the late Neolithic and Bronze Age.
| Site | Materials | Lab. no. | Radiocarbon age (yr BP) | Calibrated age (cal yr BP) 2 sigma | Culture | Human subsistence | References | |
| 5,300–4,000 BP | Luowalinchang | Broomcorn millet | BA 120197 | 4,470 ± 25 | 5,141 ± 164 | Majiayao | Agriculture | Chen et al., 2015a |
| Gayixiangjing | Foxtail millet | Beta-297655 | 4,410 ± 40 | 5,068 ± 206 | Majiayao | Agriculture | Chen et al., 2015a | |
| Benbakou | Foxtail millet | BA 110909 | 4,185 ± 25 | 4,731 ± 105 | Majiayao | Agriculture | Chen et al., 2015a | |
| Shangduoba | Broomcorn millet | BA 120187 | 4,035 ± 30 | 4,600 ± 178 | Majiayao | Agriculture | Chen et al., 2015a | |
| Shangsihesheng | Charcoal | LUG10-187 | 3,985 ± 51 | 4,519 ± 261 | Majiayao | Agriculture | Jia, 2012 | |
| Early Gongshijia | Charcoal | LUG11-64 | 3,802 ± 50 | 4,206 ± 201 | Qijia | Agriculture | Jia, 2012 | |
| Zongri | Foxtail/broomcorn millet | 4,600–4,000 | Zongri | Hunting-gathering | Ren, 2017 | |||
| 4,000–3,600 BP | Jinchankou | Barley | BA 110913 | 3,595 ± 20 | 3,906 ± 65 | Qijia | Agriculture | Chen et al., 2015a |
| Middle Gongshijia | Barley | Beta-303689 | 3,620 ± 30 | 3,955 ± 112 | Qijia | Agriculture | Chen et al., 2015a | |
| Dongcun* | 4,060–3,580 | Qijia | Agriculture | Jia, 2012 | ||||
| Late Gongshijia | Charcoal | LUG11-62 | 3,413 ± 49 | 3,672 ± 159 | Qijia | Agriculture | Jia, 2012 | |
| 3,600–2,600 BP | Wenjia | Barley | BA 110888 | 2,890 ± 30 | 3,041 ± 115 | Xiandian | Agro-pastoralism | Chen et al., 2015a |
| Wayaotai | Broomcorn millet | BA 120199 | 3,410 ± 30 | 3,694 ± 121 | Xiandian | Agro-pastoralism | Chen et al., 2015a | |
| Shuangerdongping | Barley | BA 110903 | 2,770 ± 25 | 2,867 ± 78 | Xiandian | Agro-pastoralism | Chen et al., 2015a | |
| Xigang | Charcoal | LUG11-138 | 2,583 ± 66 | 2,612 ± 235 | Xiandian | Agro-pastoralism | Jia, 2012 | |
| Qiakadingdong* | 3,140–3,060 | Kayue | Agro-pastoralism | Jia, 2012 | ||||
| Dingke* | 3,140–3,060 | Kayue | Agro-pastoralism | Jia, 2012 | ||||
| Kasuo* | 3,140–3,060 | Kayue | Agro-pastoralism | Jia, 2012 | ||||
| Shangyagen* | 3,140–3,060 | Kayue | Agro-pastoralism | Jia, 2012 | ||||
| Miaogou* | 3,140–3060 | Kayue | Agro-pastoralism | Jia, 2012 | ||||
The chronology of the Site* are confirmed by the radiocarbon dates of other archeological sites in corresponding culture. Ages obtained were calibrated using Calib (v.6.0.1) (Stuiver and Reimer, 1993) and the IntCal09 calibration curve (Reimer et al., 2009). They are presented as cal yr BP with two sigma (at 95.4% confidence).