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A search for seamounts in the Southern Cook and Austral Region

1982; American Geophysical Union; Volume: 9; Issue: 4 Linguagem: Inglês

10.1029/gl009i004p00389

1944-8007

Kurt Lambeck, Richard Coleman,

Oceanographic and Atmospheric Processes

The existence of uncharted seamounts in the Cook‐Austral region of the South Pacific has been investigated using GEOS 3 and SEASAT radar altimeter observations. Three previously uncharted submarine seamounts, provisionally named GEOS A to GEOS C, have been located between Mauke and Rimatara and a fourth, GEOS D, has been located east of Rurutu. This confirms that the Aitutaki‐Mauke islands of the Southern Cooks are a continuation of the Austral chain. A second group of uncharted seamounts has been provisionally located some 200 km south of Rimatara and Maria and this is suggestive of a second seamount chain, south of the first, that includes Raratonga and Mangaia. Fabert Bank, to the south of Mangaia, appears to be mislocated by about 2° in longitude.