| Description |
Alexandra Volcanic Group and Okete volcanic field volcanoes |
|---|---|
| Source | |
| Date |
2022-11-27 |
| Author | |
| Permission (Reusing this file) |
See below. |
| Additional information | Map of selected volcanic features of the Alexandra Volcanic Group and Okete volcanic field. Clicking on the map enlarges it, and enables mouseover of volcano feature/wikilink. The type of basaltic volcanic eruption (some are composite over their eruptive history) is indicated by red being arc basalts, pink being ring basalts of stratovolcanoes and brown being intra-arc basalts typical of those produced by monogenic volcanic fields. Characterised vents are black rectangles. The data updating earlier work comes mainly from Pittari, Adrian; Prentice, Marlena L.; McLeod, Oliver E.; Zadeh, Elham Yousef; Kamp, Peter J. J.; Danišík, Martin; Vincent, Kirsty A. (2021). "Inception of the modern North Island (New Zealand) volcanic setting: spatio-temporal patterns of volcanism between 3.0 and 0.9 Ma" (PDF). New Zealand Journal of Geology and Geophysics. 64 (2–3): 250–272. doi:10.1080/00288306.2021.1915343. , McLeod, OE; Pittari, A; Brenna, M; Briggs, RM (2020). Geology of the Pirongia Volcano, Waikato:1:30,000 Geological Map in The Pirongia Volcano. Geoscience Society of New Zealand Wellington, New Zealand. ISBN 978-0-473-52832-4. and Briggs, R. M. (1983). "Distribution, form, and structural control of the Alexandra Volcanic Group, North Island, New Zealand". New Zealand Journal of Geology and Geophysics. 26 (1): 47–55. doi:10.1080/00288306.1983.10421521. Ages from Briggs et al. Ages of the Pliocene—Pleistocene Alexandra and Ngatutura Volcanics, western North Island, New Zealand, and some geological implications |
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