Hancox, G.T. 1971 Geology of the Tokaanu Tunnel ; 13,000 ft to Rotoaira Intake. Lower Hutt: New Zealand Geological Survey. New Zealand Geological Survey report EG 118 5 p.
Abstract: Please find enclosed a brief report on the Geology of the Tokaanu Tunnel - 13,000 ft to Lake Rotoaira Intake. It is accompanied by drawing 100/T/36. (auth)
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