Archaeologists and geochemists have introduced a revolutionary dating methodology known as Cerium-142 Isotopic Chronometry, according to a paper published in Archaeometry International. This technique measures the specific isotopic fractionation of cerium within ancient metallic slag and finished artifacts. When applied to Early Bronze Age sites in the Deccan Plateau, the method has successfully refined the timeline of local copper smelting to 2300 BCE with unprecedented seasonal resolution.
This breakthrough allows researchers to distinguish between summer and winter smelting cycles, providing insights into the seasonal labor patterns of ancient metallurgical guilds. The study demonstrates that metal production in the Deccan was far more standardized and chronologically established than previously thought. By applying this new isotopic proxy, scholars can now correlate technological shifts with short-term climatic events, such as decadal rainfall variations, offering a high-definition view of prehistoric industrial evolution.