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Journal of Geographical Sciences, Volume. 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 CHEN23 |Show fewer author(s)
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
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    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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    • Table 1.

      Radiocarbon dates from the ancient cities in the Ganjia Basin

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      Table 1.

      Radiocarbon dates from the ancient cities in the Ganjia Basin

      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
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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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    Paper Information

    Category: Research Articles

    Received: Apr. 25, 2020

    Accepted: Jun. 26, 2020

    Published Online: Apr. 21, 2021

    The Author Email: ZHANG Dongju (djzhang@lzu.edu.cn)

    DOI:10.1007/s11442-020-1793-9

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