Fig. 1
Archaeological sites and mines mentioned in this research. (1. Yaozilun, Yiyang; 2. Gaoshaji, Wangcheng; 3. Tanheli, Ningxiang; 4. Xiangxiang; 5. Yunhuqiao, Xiangtan; 6. Zhuzhou; 7. Mayang; 8. Tonglushan; 9. Yangxin; 10. Tongling, Ruichang; 11. Tongling; 12. Zhongtiaoshan; 13. Lingbao; 14. Lushi; 15. Luanchuan;16. Songshugang; 17. Limu; 18. Huashan; 19. Tongshanling ; 20. Shuikoushan; 21. Shizhuyuan; 22. Guposhan; 23. Jiuyishan; 24. Xianghualing; 25. Qitianling; 26. Hehuaping; 27. Jiepailing; 28. Zuozhong; 29. Huangtupo; 30. Xiasi; 31. Qiaojiayuan; 32. Xitian; 33. Yichun)