Authors / CoAuthors
Finlayson, D.M.
Abstract
Recordings of P seismic waves from a Novaya Zemlya nuclear explosion at 26 sites on the east Papuan peninsula show that there are significant apparent departures (residuals) from travel-times calculated using average earth models. The residual at Port Moresby (PMG) differs by between +0.3 and +0.5 seconds from previous attempts to assign a station effect there. Without precise times and locations of the Novaya Zemlya events it is not possible to determine the proportions of the residual due to source effects and velocity anomalies in the mantle. It is shown that complex crustal structure in the east Papuan region accounts for a significant proportion of the station residuals, which differ from the PMG residual by between -0.72 seconds and +1.41 seconds. There is a tendency towards more negative residuals on the northeast side of the Papuan peninsula.
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document
eCat Id
80928
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords
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- GA PublicationJournal
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- PNG
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
1977-01-01T00:00:00
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geoscientificInformation
Series Information
BMR Journal of Australian Geology and Geophysics 2:3:209-216
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Unknown
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[-11.0, -6.0, 145.0, 152.0]
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