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2023
Journal article
Predicting bronze casting recipes in ancient China: ternary copper-lead–tin alloys and the “unit sum problem”
This paper explores the relationship between trends in the observed composition of ternary copper-lead–tin alloys and the recreation of “recipes” used for the casting of bronze objects, and in particular, to ask if the recipe can be reconstructed from the chemical data. The archaeological context is specifically the manufacture of...Pollard, A. M. ; Liu, Ruiliang
Bronze casting recipes , Chinese bronze coins, and Unit sum problem
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2023
Journal article
Bronze alloying recipes at Anyang during the Shang Dynasty
We present a detailed analysis of the chemical alloying data (Cu, Sn, Pb) on the bronzes recovered from the Late Shang capital at Yinxu, revealing a complex pattern which varies by social status and object typology, and which also changes over time. The preference for higher tin in the bronze...Pollard, A. Mark ; Zhang, Yun ; Liu, Ruiliang
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2024
Journal article
Forager-farmer transition at the crossroads of East and Southeast Asia 4900 years ago
The southward expansion of East Asian farmers profoundly influenced the social evolution of Southeast Asia by introducing cereal agriculture. However, the timing and routes of cereal expansion in key regions are unclear due to limited empirical evidence. Here we report macrofossil, microfossil, multiple isotopic (C/N/Sr/O) and paleoproteomic data directly from...Ma, Minmin ; Lu, Minxia ; Sun, Rui ; Zhu, Zhonghua ; Fuller, Dorian Q. …
proteomics, isotopes, agricultural origins, Yunnan, and millet
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2023
Journal article
New solidification simulation reveals the secret of the hidden metal cores in ancient Chinese bronzes
Regardless of the tremendous number of studies on ancient Chinese bronzes and fruitful understanding of the raw materials, technologies and their cultural significance, many related issues have still not been tackled. In particular, it has been known for decades that the legs of Shang and Zhou bronzes have metal cores,...Yang, Huan ; Fang, Minghui ; Chang, Yihang ; Liu, Ruiliang ; Fang, Zhao …
solidification process simulation, metal core, casting defects, and bronze tripod
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2024
Journal article
A view from the countryside: radiocarbon chronology for Zaolinhetan of the pre-Zhou culture in early dynastic China
The conquest of the Shang Dynasty at Anyang around 1046 BCE by the Zhou is one of the major events for not only Chinese Bronze Age but also early interaction between the pastoralist groups from the Eurasian Steppes and agriculture ones in the Central Plains of China. It is well-known...Li, Xiaojian ; Liu, Wei ; Xu, Yongxiang ; Dou, Haifeng ; Pollard, A Mark …
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2023
Journal article
Earliest systematic coal exploitation for fuel extended to ~3600 B.P.
Coal has long fueled human civilizations. The history of systematic coal fuel exploitation has been traced back to the late third millennium before present (post-2500 B.P.). Although sporadic combustion of coal for fuel was reported in some prehistoric archaeological sites, evidence for the systematic exploitation of coal for fuel before...Qiu, Menghan ; Liu, Ruiliang ; Li, Xingyuan ; Du, Linyao ; Ruan, Qiurong …
China, metallurgy, and coal