***NEWLY AVAILABLE*** Geology of Karioi Volcano, Aotearoa New Zealand
$75.00
Full-colour book and A0 1:25,000 geological map of Karioi volcano, Aotearoa New Zealand. Please scroll down for further details.Please sign in or register to purchase this product.
The ancient maunga Karioi (756 m) sits cloaked in bush on the rugged west coast of Aotearoa, New Zealand. Slowly chiselled by waves since the last interglacial, this eroded volcanic landscape contains an unparalleled geological record of lava flows, ash falls, cone growth and collapse events from throughout the life of a stratovolcano.
Karioi lies at the northwest tip of the Alexandra Volcanic Group, a chain of extinct basaltic stratovolcanoes, domes and smaller vents formed about 2.5 million years ago above a tear in the subducted Pacific Plate. Because of this unusual tectonic setting, Karioi is one of only a few volcanoes on Earth where arc- and intraplate-type basaltic magmas were erupted together from the same volcanic system.
This study presents the first detailed geological map of Karioi volcano and the nearby Okete volcanics based on the results of 30 years of field surveys, recent aeromagnetic datasets and new radiometric ages. The geological information is displayed at 1:25,000 scale on a high resolution, hill-shaded basemap created with LiDAR.
The companion text provides notes on stratigraphy, eruption history, local tectonics, and places Karioi into the wider volcanic context of Aotearoa and the Pacific Ring of Fire. These descriptions are accompanied by landscape and outcrop photographs, map plates and geological sketches.
Authors: Oliver E. McLeod, C. E. Conway, O. Ishizuka
Year: 2024
Format: Softcover and A0 1:25,000 map in sleeve
Series: GSNZ Miscellaneous Publication
Series volume: 165
ISBN: 978-0-473-70884-9
Geoscience Society of New Zealand
PO Box 7003
Newtown
Wellington 6242
Administrator:
Nicki Sayers
Newsletter articles for consideration:
Editor@gsnz.org.nz
The GSNZ is a member organisation of the Royal Society
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