Australian Museum Journal Long Island, Papua New Guinea: aspects of landforms and tephrostratigraphy

Shortform:
Blong et al., 1982, Rec. Aust. Mus. 34(7): 419–426
Author(s):
Blong, R. J.; Pain, C. F.; McKee, C. O.
Year published:
1982
Title:
Long Island, Papua New Guinea: aspects of landforms and tephrostratigraphy
Serial title:
Records of the Australian Museum
Volume:
34
Issue:
7
Start page:
419
End page:
426
DOI:
10.3853/j.0067-1975.34.1982.289
Language:
English
Date published:
31 July 1982
Cover date:
31 July 1982
ISSN:
0067-1975
CODEN:
RAUMAJ
Publisher:
The Australian Museum
Place published:
Sydney, Australia
Subjects:
ANTHROPOLOGY; ETHNOGRAPHY; NEW GUINEA
Digitized:
27 January 2009
Available online:
02 March 2009
Reference number:
289
EndNote package:
EndNote file
Title page:
Title page (95kb PDF)
Complete work:
Complete work (770kb PDF)

Abstract

Present day geomorphic processes on Long Island include rapid trimming of the coastline and caldera wall by wave action. Deep, rapidly eroding linear gullies cut in the youngest pyroclastic deposits expose numerous sections which allow reconstructions of the island's recent eruptive history.

Deposits from three major Plinian and Pelean pyroclastic eruptions dated at approximately 16,000, 4,000 and 200–300 radiocarbon years bp have been recognised. These phases of cataclysmic activity, probably with associated caldera collapse, were separated by numerous intermittent tephra falls many of which would have been heavy enough to destroy much of the physical environment of the island. Interpretation of the pyroclastic deposits erupted during the period of human occupation provide information about changes in the physical environment

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