We strongly disagree with D.I. Cole’s contention that our use of strontium isotopes has not lead to any meaningful improvement in the chronostratigraphy of the Prospect Hill Formation exposed in the Tabakbaai Quarry (Franceschini and Compton, 2004). Interpretation of the complex stratigraphy of the West Coast has suffered from a lack of chronostratigraphy. The integration of radiocarbon, uranium disequilibrium and luminescent dating has greatly improved our understanding of upper Pleistocene and Holocene deposits of the West Coast (Roberts and Berger, 1997; Felix-Henningsen et al., 2003; Compton and Franceschini, 2005). The challenge of the...

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