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Morphology of seamounts in the western Pacific and Philippine Basin from multi-beam sonar data |
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| Authors: | Charles D Hollister Morris F Glenn Peter F Lonsdale |
| Institution: | 1. Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543 U.S.A.;2. Written while employed by the Naval Oceanographic Office, USA;3. Scripps Institution of Oceanography, University of California at San Diego, La Jolla, CA 92093 U.S.A. |
| Abstract: | New multi-beam bathymetric data from the Philippine Sea and northwest Pacific Basin reveal linear chains of small (less than 40 km3) domed-shaped volcanoes (Philippine) and coned-shaped volcanoes (Pacific) rising 100–1000 m above the 6 km deep ocean floor. Some appear to have well-developed collapsed calderas and spines. Their morphology suggest recent formation in supposedly stable mid-plate regions and their occurrence in linear chains approximately parallel to plate motion may suggest an origin by extrusion from “mini-hot spot” plumes. |
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