A team of researchers from Nanjing University and the Chinese Academy of Sciences has published a groundbreaking study in Nature detailing a new dating methodology using Silicon-31. This technique, which measures specific isotopic ratios in preserved wood fibers, provides a temporal resolution of less than five years, significantly improving upon traditional Carbon-14 dating for archaeological sites located in high-moisture riverine environments.
The study applied this method to the Neolithic pile-dwelling settlements of the Yangtze Delta, revealing a far more complex and rapid urban expansion than previously hypothesized. These findings allow archaeologists to correlate structural modifications with seasonal flooding events with unprecedented precision, offering a window into how early civilizations adapted to a volatile deltaic landscape through advanced timber engineering.