In search of ancestral Kilauea volcano

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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% SiO2, 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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Publication type Article
Publication Subtype Journal Article
Title In search of ancestral Kilauea volcano
Series title Geology
DOI 10.1130/0091-7613(2000)28<1079:ISOAKV>2.0.CO;2
Volume 28
Issue 12
Year Published 2000
Language English
Publisher Geological Society of America
Description 4 p.
First page 1079
Last page 1082
Country United States
State Hawai'i
Other Geospatial Hilina slump, Pacific Ocean
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