Wednesday Dec 2, 6.30pm, Raglan Town Hall Supper Room, 41 Bow Street.
Complimentary light refreshments from 6.30pm. Talk begins at 7pm.
You’re invited to hear about the geology of Karioi and Pirongia from a passionate young geologist next week at the Raglan Town Hall. Oliver McLeod did his PhD study on Pirongia and is launching a Kickstarter campaign to produce a map of Karioi, showing all of its geological structures.
“Geologically, Karioi is an extinct volcano perhaps best known as a site of ‘ankaramite’ eruptions – basaltic lavas carrying giant black volcanic crystals. Ankaramite is a rock that occurs nowhere else in New Zealand beyond the Alexandra Volcanic Group (which also includes Mt Pirongia)…
Karioi is much more akin to an island volcano than anything on mainland New Zealand. It has also recently emerged that Karioi is among the only known volcanoes on Earth where two distinct magma types, ‘intraplate’ and ‘arc’ basalt, have erupted together from the same vent system (as seen at Te Toto Gorge). For all of these reasons, Karioi is an important map subject and has the potential to contribute profoundly to the global understanding of basaltic volcanoes.
Wednesday Dec 2, 6.30pm, Raglan Town Hall, 41 Bow Street.
https://www.kickstarter.com/…/a-new-geological-map-for…New Zealand Coastal SocietyGeoscience Society of New Zealand