Obducted ophiolites of North Island, New Zealand: origin, age, emplacement and tectonic implications for Tertiary and Quaternary volcanicity

• Published in: New Zealand Journal of Geology and Geophysics
• Main Authors: Brothers, R.N., Delaloye, Michel
• Format: Article in Journal/Newspaper
• Language: English
• Published: 1982
• Subjects: info:eu-repo/classification/ddc/550; Tangihua volcanics; Wangakea volcanics; Matakaoa volcanics; Ophiolites; K-Ar dating; Obduction; Cenozoic volcanism; East Cape; New Zealand; North Cape
• Online Access: https://archive-ouverte.unige.ch/unige:143466

Igrieous massifs in Northland and East Cape contain disrupted ophiolite sequences (pillow lavas, sheeted dikes, noncumulate and cumulate gabbros) with low-grade metamorphic assemblages. Sediments associated with pillow lavas, or as cappings on individual massifs, have fossils ranging in age from Ear...