ABSTRACT
Dietary reconstruction Degree of marine reliance Burton and Price (1990) have developed several scales to separate marine-based subsistence from one of terrestrial reliance. They find that marine diets generally have log (Ba/Sr) ratios between – 1.3 and –1.8 terrestrial diets averaged between 0 and –0.4. The Tutu samples have an average log (Ba/Sr) ratio of –0.63, which indicates a mixed diet. Plotting log (Sr) vs log (Ba) also separates marine and terrestrial diets (Burton & Price, 1990). Using Burton and Price’s graph (1990; p. 793), the Tutu material (log (Sr) = 2.57 and log (Ba) = 1.93) again falls between the two groups, suggesting a fairly equal contribution from both terrestrial and marine resources.
