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Iron decarburisation techniques in the eastern Guanzhong Plain, China, during Late Warring States period: an investigation based on slag inclusion analyses

  • Yaxiong Liu
  • Marcos Martinón-Torres
  • Jianli Chen
  • Weigang Sun
  • Kunlong ChenEmail author
Original Paper

Abstract

Iron production in the Central Plains area of China has been largely based on cast iron smelting since ca. fifth century BC, with different techniques developed in the following Warring States period and Han dynasty to convert this material into malleable soft iron. Whilst there is a broad consensus about the evolution of technological traditions in the Early Iron Age, the methodologies employed for differentiating artefacts derived from different iron smelting and decarburisation methods have been variable and not sufficiently conclusive. Taking advantage of renewed analytical approaches and archaeological evidence recovered in recent years, this paper summarises our current understanding of the decarburisation techniques employed in Early Iron Age China and sheds new light on this subject through the analysis of archaeological artefacts from two civilian cemeteries in the eastern part of the Guanzhong Plain (Shaanxi), dated to the third century BC. The analytical results indicate that both solid-state and liquid-state decarburisation were employed for soft iron production in this area during the Late Warring States period. The methodology employed in this paper, based on slag inclusion analysis, also provides a more systematic approach to differentiating soft iron production techniques in future archaeometallurgical research in China.

Keywords

Archaeometallurgy Decarburisation Chaogang Slag inclusions Warring States period 

Notes

Acknowledgements

We are very grateful to the Shaanxi Provincial Institute of Archaeology for all the help and facilities that made this research possible, especially the effort and support from the staff including Zhouyong Sun, Anding Shao, Lianjian Yue and Jianxi Li. We are also indebted to Rubin Han, Yanxiang Li and Xiuhui Li from the Institute of Historical Metallurgy and Materials, USTB, for their kind support and advice. We also want to express our gratitude to colleagues at the UCL Institute of Archaeology, including Michael Charlton, Thilo Rehren, Yijie Zhuang, Tom Gregory, Agnese Benzonelli, Jonathan Wood, Hayley Simon and Ole Nordland.

Funding information

This research received funding from the National Social Science Fund of China (18BKG011). Yaxiong Liu’s research was funded by a China Scholarship Council (CSC) for his PhD research at the UCL Institute of Archaeology. The paper was facilitated by a research visit from Jianli Chen to Marcos Martinón-Torres, funded through a fellowship by the UCL Institute of Advanced Studies.

Supplementary material

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References

  1. Bai C (1994) Analytical report of the sword fragment unearthed from Tomb 2 in Yimen, Baoji. Cultural Relics 9:82–85 (in Chinese)Google Scholar
  2. Bai Y (2004) Study of the iron objected from Per-Qin and Han dynasty, PhD dissertation, Shandong University, Shandong (in Chinese)Google Scholar
  3. Beijing University of Iron and Steel Technology (1975) Preliminary analytical report for the metallographic study of iron objects unearthed in tomb 44 unearthed from the capital of Yan in Yi county, Hebei province. Archaeology 4:241–243 (in Chinese)Google Scholar
  4. Beijing University of Iron and Steel Technology (1976) Analytical report of the iron depot in Mianchi, Henan. Cultural Relics 8:52–58 (in Chinese)Google Scholar
  5. Biggs L, Bellina B, Martinón-Torres M, Pryce TO (2013) Prehistoric iron production technologies in the Upper Thai-Malay Peninsula: metallography and slag inclusion analyses of iron artefacts from Khao Sam Kaeo and Phu Khao Thong. Archaeol Anthropol Sci 5(4):311–329CrossRefGoogle Scholar
  6. Blakelock E et al (2009) Slag inclusions in iron objects and the quest for provenance: an experiment and a case study. J Archaeol Sci 36(8):1745–1757CrossRefGoogle Scholar
  7. Buchwald VF, Wivel H (1998) Slag analysis as a method for the characterization and provenancing of ancient iron objects. Mater Charact 40(2):73–96CrossRefGoogle Scholar
  8. Charlton MF et al (2010) Explaining the evolution of ironmaking recipes – An example from northwest Wales. Journal of Anthropological Archaeology 29(3):352–367Google Scholar
  9. Charlton MF et al (2012) Investigating the production provenance of iron artifacts with multivariate methods. J Archaeol Sci 39(7):2280–2293CrossRefGoogle Scholar
  10. Chen J (1990) Metallurgy of iron and steel (part II steel production). Metallurgical Industry Press, Beijing (in Chinese)Google Scholar
  11. Chen J (2014) New discoveries on the metal working technology in early China. Beijing, Science Press, Beijing (in Chinese)Google Scholar
  12. Chen J, Han R (1999) Metallographic study of the iron objects unearthed from the royal tomb of Chu in Shizishan, Xuzhou. Cultural Relics 7:84–91 (in Chinese)Google Scholar
  13. Chen J, Han R (2007) Iron and steel technologies in the northern and Central Plains China during Han and Jin dynasty. Peking University Press, Beijing (in Chinese)Google Scholar
  14. Chen J, Zhang Z (2016) Methods to differentiate finning technique based on slag analysis. Cultural Relics in Southern China 1:115–121 (in Chinese)Google Scholar
  15. Chen J et al (2009) Manufacturing technique of the Bronze-Iron object from tomb 27 in Liangdai village site. China Science 39(9):1574–1581 (in Chinese)Google Scholar
  16. Chen J et al (2012) Iron objects unearthed from Siwa culture tomb in Gansu and the origin of the iron metallurgy in China. Cultural Relics 8:45–53 (in Chinese)Google Scholar
  17. Craddock PT (1995) Early metal mining and production. Edinburgh University Press, EdinburghGoogle Scholar
  18. Dillmann P, L’Héritier M (2007) Slag inclusion analyses for studying ferrous alloys employed in French medieval buildings: supply of materials and diffusion of smelting processes. J Archaeol Sci 34(11):1810–1823CrossRefGoogle Scholar
  19. Disser A et al (2014) Iron reinforcements in Beauvais and Metz Cathedrals: from bloomery or finery? The use of logistic regression for differentiating smelting processes. J Archaeol Sci 42:315–333CrossRefGoogle Scholar
  20. Goldstein JI, Huss GR, Scott ERD (2017) Ion microprobe analyses of carbon in Fe–Ni metal in iron meteorites and mesosiderites. Geochim Cosmochim Acta 200:367–407CrossRefGoogle Scholar
  21. Gordon RB (1997) Process deduced from ironmaking wastes and artefacts. J Archaeol Sci 24(1):9–18CrossRefGoogle Scholar
  22. Guo M et al (2014) Scientific study of the iron objects unearthed from a Warring State cemetery in Zhaitouhe, Huangling, Shaanxi Province. Archaeology And Cultural Relics 2:114–120 (in Chinese)Google Scholar
  23. Han R (1989) Examination of iron objects unearthed from Tianma-Qucun site. Tianma-Qucun. Science Press. III, Beijing, pp 1178–1180 (in Chinese)Google Scholar
  24. Han R (1998) Metallographic study of the iron objects in China dated before 5th century BC. Cultural Relics 2:87–96 (in Chinese)Google Scholar
  25. Han R, Ko T (2007) History of science and technology in China: mining and metallurgy. Science Press, Beijing (in Chinese)Google Scholar
  26. Han R, et al. (1999) "Identification and study of the bronze objects with iron blade unearthed from the Guo Cemetery." from: Henan Institute of Cultural Relics, Excavation team in Sanmenxia. “Guo Cemetery in Sanmenxia”. Beijing: Cultural Relics Press (in Chinese)Google Scholar
  27. Hua J (1982) Discussion on high strength cast iron from Han and Wei dynasties. Studies In The History of Natural Sciences 1(1):1–20 (in Chinese)Google Scholar
  28. Hua J (1999) Metal technology in ancient China. Elephant press, Beijing (in Chinese)Google Scholar
  29. Hua J et al (1960) Preliminary metallography analytical results of iron objects dated to Warring States period and Han dynasty. Acta Archaeologica Sinica (1):73–88 (in Chinese)Google Scholar
  30. Huang Q (2013) Investigation and slag analysis on iron smelting sites in Guigang district, Guangxi, Lijiang, Lijiang Publishing house (in Chinese)Google Scholar
  31. Huang Q et al (2016) Study of early iron metallurgy based on slag analysis. Journal of National Museum of China 11:145–153 (in Chinese)Google Scholar
  32. Iles L, Martinón-Torres M (2009) Pastoralist iron production on the Laikipia Plateau, Kenya: wider implications for archaeometallurgical studies. J Archaeol Sci 36(10):2314–2326CrossRefGoogle Scholar
  33. Killick, D. and R. B. Gordon (1988). The mechanism of iron production in the bloomery furnace. Proceedings of the 26th International Archaeometry Symposium: held at University of Toronto, Toronto, Canada, May 16th to May 20th, 1988, University of Toronto. Archaeometry LaboratoryGoogle Scholar
  34. King P (2005) The production and consumption of bar iron in early modern England and Wales. Econ Hist Rev 58(1):1–33CrossRefGoogle Scholar
  35. Ko T et al (1993) Preliminary study of early iron objects unearthed in Henan province. Cultural Relics in Central Plain 1:99–107 (in Chinese)Google Scholar
  36. Lam W et al (2018) An iron production and exchange system at the center of the Western Han Empire: scientific study of iron products and manufacturing remains from the Taicheng site complex. J Archaeol Sci 100:88–101CrossRefGoogle Scholar
  37. Larreina-Garcia D, et al. (2018) "Bloomery iron smelting in the Daye County (Hubei): technological traditions in Qing China." Archaeological Research in Asia 16:148–165Google Scholar
  38. Li Y et al (2019) Early iron objects of southwest China: a case study of iron objects excavated from Qiaogoutou cemetery site, Sichuan Province. Archaeological and Anthropological Sciences 11(4):1187–1198Google Scholar
  39. Li Z (1975) Discussion on the iron and steel working technique in early feudalism China. Acta Archaeologica Sinica 2:1–22 (in Chinese)Google Scholar
  40. Li Z (1982) Metallographic study of the Han iron objects unearthed from Zhenping, Henan province. Archaeology 3:320–321 (in Chinese)Google Scholar
  41. Miao C et al (1993) Technological development of iron production in Henan based on the examination of iron objects. Cultural Relics in Central Plains 4:91–100 (in Chinese)Google Scholar
  42. McDonnell JG (1991) A model for the formation of smithing slags. Materialy Archeologiczne 26:23–26Google Scholar
  43. Nanjing Museum (1974) Tomb No.2 dated to Spring and Autumn period in Liuhe, Jiangsu province. Archaeology 2:116–120 (in Chinese)Google Scholar
  44. Pleiner R (2000) Iron in archaeology: the European bloomery smelters. Archeologický ústav AVČR, PragueGoogle Scholar
  45. Pleiner R (2006) Iron in archaeology: early European blacksmiths. Archeologický ústav AV Čr, PragueGoogle Scholar
  46. Rehren T, et al (2007) Decisions set in slag: the human factor in African iron smelting. In: La Niece S, Hook DR, Craddock PT (eds), Metals and mines: studies in archaeometallurgy. Archetype, British Museum, London, pp 211–218Google Scholar
  47. Rostoker W, Bronson B (1990). Pre-industrial iron: its technology and ethnology. Archeomaterials Monograph No. 1, PhiladelphiaGoogle Scholar
  48. Serneels V, Perret S (2003) Quantification of smithing activities based on the investigation of slag and other material remains. Archaeometallurgy in Europe 1:469–478Google Scholar
  49. Shandong Museum (1977) Eastern Zhou tomb with human sacrifice in Linzi, Langjiazhuang. Acta Archaeologica Sinica 1:73–104 (in Chinese)Google Scholar
  50. Sun W (2009) Study of the Xinfeng Qin cemetery. MA dissertation. Northwest University, Xi’an (in Chinese)Google Scholar
  51. Wagner DB (1985) Dabieshan: traditional Chinese iron-production techniques practised in southern Henan in the twentieth century. Curzon Press, LondonGoogle Scholar
  52. Wagner DB (1989) Toward the reconstruction of ancient Chinese techniques for the production of malleable cast iron. East Asian Institute occasional papers 4:3–72Google Scholar
  53. Wagner DB (2008) Science and civilisation in China: science and civilisation in China: Vol. 5, Chemistry and Chemical Technology. Ferrous Metallurgy/by Donald B. Wagner, Cambridge University PressGoogle Scholar
  54. Yang K (1960) A brief history of the development of traditional iron and steel production techniques in China. Shanghai Peoples’ Publishing House, Shanghai (in Chinese)Google Scholar
  55. Yang K (1980) The innovation of iron implements and its impact in history of China. Historical Research 5:89–98 (in Chinese)Google Scholar
  56. Yang K (1982) The development history of iron smelting technology in ancient China. Shanghai People’s Publishing House, Shanghai (in Chinese)Google Scholar
  57. Yang J et al (2014) Scientific analysis of iron objects unearthed from a military camp in Paomaquan Great wall in Changping, Beijing—discussion about the identification method for finning technique. The Chinese Journal for The History of Science and Technology 35(2):177–187 (in Chinese)Google Scholar
  58. Ye J (1975) Initial investigation of iron and bronze tools unearthed from the mining site in Tonglushan. Cultural Relics 2:19–25 (in Chinese)Google Scholar
  59. Zhang Z (2015) Archaeometalurgical study of iron foudry site in Dongpingling, Shandong. MSc dissertation, Peiking University, Beijing (in Chinese)Google Scholar
  60. Zhang Z, Chen J (2018) A preliminary discussion on Phosphorus in cast iron smelting. Cultural Relics in Southern China 3:196–211(in Chinese)Google Scholar
  61. Zhao Q et al (1985) Re-discussion about the iron foundry site in Tieshenggou, Gong county. Acta Archaeologica Sinica 2:157–183 (in Chinese)Google Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.UCL Institute of ArchaeologyLondonUK
  2. 2.Department of ArchaeologyUniversity of CambridgeCambridgeUK
  3. 3.School of Archaeology and MuseologyPeking UniversityBeijingChina
  4. 4.Shaanxi Provincial Institute of ArchaeologyXi’anChina
  5. 5.Institute of Historical Metallurgy and MaterialsUniversity of Science and Technology BeijingBeijingChina

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