Fig. 5
From: p3k14c, a synthetic global database of archaeological radiocarbon dates
The density of sites versus dates for China (provinces) and Western Africa (countries). Each plot is log-log transformed. The relationship between the spatial density of recorded archaeological sites and dates across each region is sub-linear, indicating that enhanced recording of archaeological resources does not produce a higher density of dates. China shows a super-linear relationship between the density of dated sites and dates, suggesting over-sampling of dates in provinces with higher densities of dated sites; this relationship in Western Africa remains slightly sub-linear.
