Abstract
The Rumble seamounts are major Quaternary submarine volcanoes which lie at the southern end of the Tonga-Kermadec island arc. Rocks dredged from three of the volcanoes are olivine and pyroxene phyric basalts and highly por-phyritic plagioclase-rich basaltic andesites. Plagioclase phenocrysts display patterns of iron enrichment similar to those observed in rocks from other parts of the arc. Systematic major and trace element variations indicate that the specimens constitute a closely related suite of low-K arc-type rocks showing characteristic depletion in some large ion lithophile elements. They are closely comparable to basaltic rocks of the Kermadec Islands and their genesis may be linked to the currently active subduction system beneath the arc.
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References
Brothers RN (1967) Andesite from Rumble III volcano, Kermadec Ridge, southwest Pacific. Bull Volcanol 31:17–19
Brothers RN (1986) Upper Tertiary and Quaternary volcanism and subduction zone regression, North Island, New Zealand. J Roy Soc NZ 16:275–298
Brothers RN, Delaloye M (1982) Obducted ophiolites of North Island, New Zealand: origin, age, emplacement and tectonic implications for Tertiary and Quaternary volcanicity. NZ J Geol Geophys 25:257–274
Brothers RN, Hawke MM (1981) The tholeiitic Kermadec volcanic suite: additional field and petrological data including iron-enriched plagioclase feldspars. NZ J Geol Geophys 24:167–175
Brothers RN, Heming RF, Hawke MM, Davey FJ (1980) Tholeiitic basalt from the Monowai seamount, Tonga-Kermadec ridge. NZ J Geol Geophys 23:537–539
Davey FJ (1982) The structure of the South Fiji Basin. Tectonophys 87:185–241
Eade IV. The Norfolk Ridge system and its margins. In: Nairn AEM, Stehli FG, Churkin M (eds) The Ocean Basins and Margins 7B. Plenum, New York (in press)
Ewart A, Brothers RN, Mateen A (1977) An outline of the geology and geochemistry, and the possible petrogenetic evolution of the volcanic rocks of the Tonga-Kermadec-New Zealand island arc. J Volcanol Geotherm Res 2:205–250
Hall LH (1985) Rumble IV seamount — no rumble? NZ J Geol Geophys 28:569
Kibblewhite AC (1966) The acoustic detection and location of an underwater volcano. NZ J Sci 9:178–199
Kibblewhite AC (1967) Note on another active seamount in the south Kermadec Ridge group. NZ J Sci 10:68–69
Kibblewhite AC, Denham RN (1967) The bathymetry and total magnetic field of the south Kermadec Ridge seamounts. NZ J Sci 10:52–67
Malahoff A, Feden RH, Fleming HS (1982) Magnetic anomalies and tectonic fabric of marginal basins north of New Zealand. J Geophys Res 87:4109–4125
Norrish K, Chappell BW (1977) X-ray fluorescence spectrometry. In: Zussman J (ed) Physical Methods in Determinative Mineralogy. Academic Press, London pp 201–272
Parker RJ (1978) An iterative method for determining background intensities used in XRF calibration lines for fluxfusion silicate rock analysis. X-ray Spectrom 7:38–43
Thompson RN, Morrison MA, Hendry GL, Parry SJ (1984) An assessment of the relative roles of crust and mantle in magma genesis: an elemental approach. Phil Trans R Soc London A310:549–590
Van der Linden WJM (1967) Structural relationships in the Tasman Sea and south-west Pacific Ocean. NZ J Geol Geophys 10:1280–1301
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Smith, I.E.M., Brothers, R.N. Petrology of the Rumble seamounts, southern Kermadec Ridge, southwest Pacific. Bull Volcanol 50, 139–147 (1988). https://doi.org/10.1007/BF01079678
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DOI: https://doi.org/10.1007/BF01079678