Pleistocene ash in the Waikato basin: Ages implied by changes in sea level

Abstract

Ages implied for the stranded shores of northern New Zealand by their present correlation with supposed Australian equivalents indicate that the Waiterimu and Hamilton ash beds are between c. 400,000 and c. 750,000 years old. This estimate is consistent with K-Ar ages obtained for Franklin Basalts, which appear from stratigraphie exposures to be much the same age as the Waiterimu ash. A possible correlation with ash beds B (= Waiterimu) and C ( = Hamilton) in deep-sea cores east of New Zealand is suggested.