The geology of the Queen Street area, Auckland, New Zealand

The geology along Queen St Auckland, consists of underlying Micene marine deposited flysch and associated soils. This material is overlain by Quaternary volcanics, alluvium and recent fill, all of variable geotechnical character. Of geological importance is a lava flow which flowed down the paleovalley underlying present day Queen St, from the corner of Victoria St east. The original paleovalley gives clues as to the extent of this flow however more information is required to determine its terminal extent north and lateral extent east. The course of the Ligar stream last century is useful to determine the extent of reclamation.