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USGS · 70022059

In search of ancestral Kilauea volcano

P. W. Lipman·T. W. Sisson·T. Ui·J. Naka
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Abstract

Submersible observations and samples show that the lower south flank of Hawaii, offshore from Kilauea volcano and the active Hilina slump system, consists entirely of compositionally diverse volcaniclastic rocks; pillow lavas are confined to shallow slopes. Submarine-erupted basalt clasts have strongly variable alkalic and transitional basalt compositions (to 41% SiO 2 , 10.8% alkalies), contrasting with present-day Kilauea tholeiites. The volcaniclastic rocks provide a unique record of ancestral alkalic growth of an archetypal hotspot volcano, including transition to its tholeiitic shield stage, and associated slope-failure events.

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90° N90° S · 180° W ← longitude → 180° E
Source-reported bounding extent: 19.036156118717336° to 19.621892180319374° latitude; -155.47027587890625° to -154.25079345703122° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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P. W. Lipman, T. W. Sisson, T. Ui, J. Naka. 2000. In search of ancestral Kilauea volcano. https://doi.org/10.1130/0091-7613(2000)28%3C1079%3Aisoakv%3E2.0.co%3B2

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