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    Journals >Journal of Geographical Sciences >Volume 30 >Issue 9 >Page 1467 > Article
    • Journal of Geographical Sciences
    • Vol. 30, Issue 9, 1467 (2020)
    A study of the construction times of the ancient cities in Ganjia Basin, Gansu Province, China
    Huan XIA1, Dongju ZHANG1、*, Qiang WANG1, Duo WU1, Yanwu DUAN1, and Fahu CHEN2、3
    Author Affiliations
  • 1Key Laboratory of Western China’s Environmental Systems (Ministry of Education), College of Earth Environmental Sciences, Lanzhou University, Lanzhou 730000, China
  • 2Key Laboratory of Alpine Ecology, Institute of Tibetan Plateau Research, CAS, Beijing 100101, China
  • 3Center for Excellence in Tibetan Plateau Earth Sciences, CAS, Beijing 100101, China
    • show less
    DOI: 10.1007/s11442-020-1793-9 Cite this Article
    Huan XIA, Dongju ZHANG, Qiang WANG, Duo WU, Yanwu DUAN, Fahu CHEN. A study of the construction times of the ancient cities in Ganjia Basin, Gansu Province, China[J]. Journal of Geographical Sciences, 2020, 30(9): 1467 Copy Citation Text show less
    Location of ancient cities in the Ganjia Basin. The historical borders are based on Tan (1982).
    Fig. 1. Location of ancient cities in the Ganjia Basin. The historical borders are based on Tan (1982).
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    Sampling locations in the ancient cities of BJC and SRGC and photographs of samples
    Fig. 2. Sampling locations in the ancient cities of BJC and SRGC and photographs of samples
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    Dating results of the samples from ancient cities in the Ganjia Basin: (a. “phase” modeled age ranges for Bajiaocheng; b. summed probability distributions of eight radiocarbon dates from Bajiaocheng; c. calibrated radiocarbon dates for BJC1422; d. calibrated radiocarbon dates for SRGC1404)
    Fig. 3. Dating results of the samples from ancient cities in the Ganjia Basin: (a. “phase” modeled age ranges for Bajiaocheng; b. summed probability distributions of eight radiocarbon dates from Bajiaocheng; c. calibrated radiocarbon dates for BJC1422; d. calibrated radiocarbon dates for SRGC1404)
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    NumberDating material14C date (a BP)Calibrated age (cal CE)
    1δ (68.2%)2δ (95.4%)Median
    SRGC1401Charcoal (Picea)615±251300-13941295-14001350
    SRGC1404Charcoal (Populus)740±251263-12821225-12901271
    BJC1408Wood (Picea)1010±25995-1029981-11471018
    BJC1401Wood (Picea)1105±50888-992777-1020931
    BJC1431Twigs and herbs1115±25895-971883-990935
    BJC1412Twigs and herbs1160±30778-944773-968870
    BJC1415Twigs and herbs1240±35689-861681-881765
    BJC1429Twigs and herbs1250±25690-774677-866736
    BJC1420Wood (Pinus)1285±25681-766668-770715
    BJC1422Twigs and herbs1300±25669-764662-769705
    Table 1.

    Radiocarbon dates from the ancient cities in the Ganjia Basin

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    Huan XIA, Dongju ZHANG, Qiang WANG, Duo WU, Yanwu DUAN, Fahu CHEN. A study of the construction times of the ancient cities in Ganjia Basin, Gansu Province, China[J]. Journal of Geographical Sciences, 2020, 30(9): 1467
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