A curious Bronze Age artifact unearthed at a ceremonial site in southwestern China has now been identified as the earliest known and the largest of its kind, according to newly published research.
Crafted from meteoritic iron, the rare discovery, described as resembling an “axe-like” instrument, was found at the Sanxingdui site in China’s Sichuan Province, one of the country’s most famous archaeological areas. The confirmation of the artifact’s age offers unique new perspectives on metallurgical practices that occurred early in Bronze Age China.
Discovery at Sanxingdui
Sanxingdui, which archaeologists believe was active from 2800 to 600 BCE, is renowned for the early evidence of industrial practices they have uncovered there, as well as its ancient sacrificial pits and other ceremonial features.
A range of items crafted from bronze have been recovered as well, and in the case of the meteoritic iron blade, analysis has shown that the object was crafted in a period that predates the use of iron smelting in this part of the world.
A key indication of the extraterrestrial origin of the metal used to craft the artifact is its high concentrations of nickel and iron, which appear to rule out the use of early smelting techniques.
While this strongly supports that the object was crafted from meteoritic iron, Dr. Zishu Yang, the co-author of a recent study detailing the discovery, recently said in a statement that current analysis is “insufficient to definitively classify the specific type of meteorite,” and that the exact variety of meteorite the material was sourced from remains unknown.
Going forward, additional analysis that Yang and his colleagues plan to undertake may help reveal further clues, including possible correlations between the unique artifact, its discovery location, and ancient Chinese historical records that may document meteorite impacts from which the iron could have been sourced.