Tholeiitic basalt from the Monowai seamount, Tonga-Kermadec ridge (Note)
- 1 July 1980
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Geology and Geophysics
- Vol. 23 (4), 537-539
- https://doi.org/10.1080/00288306.1980.10424125
Abstract
Samples dredged from a depth of 120 m near the summit of the active Monowai seamount (25°53'S, 177°11'W) are glassy tholeiitic basalts containing modal feldspar (An95_77), olivine (Fo^), magnetite, and a clinopyroxene unusually enriched in alkalis and alumina. Fractionated Fe-enrichment is notable within the feldspars and similar to patterns in comparable basalts from the Kermadec islands.Keywords
This publication has 3 references indexed in Scilit:
- Seismic refraction measurements in Fiordland southwest New ZealandNew Zealand Journal of Geology and Geophysics, 1980
- An outline of the geology and geochemistry, and the possible petrogenetic evolution of the volcanic rocks of the Tonga-Kermadec-New Zealand island arcJournal of Volcanology and Geothermal Research, 1977
- Mineralogy and proposed P-T paths of basaltic lavas from Rabaul caldera, Papua New GuineaContributions to Mineralogy and Petrology, 1977