No abstract

Rhyolite tephra formations with sources within the Taupo Volcanic Centre include the previously described Taupo Pumice (erupted c. 1819 years B.P.) and Waimihia Lapilli erupted 3400 years B.P.; and the newly described Mapara

No abstract

Published names of tephra formations and members are arranged in chronological order, with estimated ages, distribution, and a statement of their mineralogical composition. The clay minerals in surface soils and in buried paleosols derived from them are listed, and the surface soils are classified.The sources of the tephras are mapped, with the 30 em isopachs of tephras that occur within 45 em of the surface and the 15 em isopachs of tephras found between 45 and 100 em from the surface also shown.The sequence of tephras that are likely to be found within 45 em from the surface is indicated, also, areas of recent soils from volcanic ash, and a suggested boundary between yellow-brown pumice soils and yellow-brown loams.

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