Computer Science
Scientific paper
Sep 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987e%26psl..85..277c&link_type=abstract
Earth and Planetary Science Letters (ISSN 0012-821X), vol. 85, no. 1-3, Sept. 1987, p. 277-288. CNES-CNRS-supported research.
Computer Science
36
Archipelagoes, Lithosphere, Pacific Ocean, Seamounts, Earth Crust, Elastic Plates, Geochronology, Geoids, Seasat Satellites
Scientific paper
The effective elastic thickness T(e) of the oceanic lithosphere along the Hawaiian-Emperor, the Marquesas, the Pitcairn-Mururoa-Gloucester (PMG) chains, the Tuamotu archipelago, and the Samoa islands was determined by computing the deflection of a continuous elastic plate under the load of volcanoes and was constrained by the geoid heights over the oceans provided by Seasat. The prediction by Watts (1978) according to which the value of the T(e) should increase with the square root of crustal age of the lithosphere at the time of volcano emplacement was not confirmed; while the T(e) estimate of the Hawaiian-Emperor chain and an isolated estimate in the Samoan group agree with the empirical trend found by Watts, the Marquesas and the PMG chains, as well as the previously analyzed Cook-Austral and Society chains, present anomalously low values which increase only slightly with age.
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