Pyroclastic deposits and eruptive sequences of Long Island

C. F. Pain, R. J. Blong, C. O. McKee, H. A. Polach

Research output: Chapter in Book/Report/Conference proceedingChapter

10 Citations (Scopus)

Abstract

The deposits may be divided into four units - a lowermost one composed mainly of airfall tephras, and three upper units dominated by ignimbrites. Each of the three upper units has a distinctive and consistent sequence of sub-units - a lower airfall lapilli deposit, a middle ignimbrite deposit, and an upper, finer-grained, airfall deposit. This sequence is interpreted as the result of an eruptive sequence, repeated three times, that proceeded from a Plinian phase to a Peleean phase, related to stages of caldera formation that took place about 16 000, 4000 and 300 yr ago.-from Authors

Original languageEnglish
Title of host publicationCooke-Ravian Volume of Volcanological Papers
EditorsR. W. Johnson
Place of PublicationNew York
PublisherDepartment of Minerals and Energy
Pages101-113
Number of pages13
Publication statusPublished - 1981

Publication series

NameGeological Survey of Papua New Guinea Memoir
Volume10

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