Computer Science – Sound
Scientific paper
Jan 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22..167c&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 22, no. 2, p. 167-170
Computer Science
Sound
38
Depth, Earthquakes, Lava, Mid-Ocean Ridges, Ocean Bottom, Pacific Ocean, Seismology, Volcanoes, Geological Surveys, Sea Floor Spreading, Sonar, Sound Waves
Scientific paper
After a swarm of earthquakes was detected on the CoAxial segment of the Juan de Fuca Ridge in June-July 1993, the area was resurveyed with SeaBeam multibeam sonar to search for depth changes associated with a submarine volcanic eruption. Quantitative comparison of the 1993 SeaBeam survey with surveys in 1981/82 and 1991 shows one area of seafloor depth change (up to 29 m) between 1991-93 exactly where a pristine lava flow was discovered. In addition, two other depth anomalies (up to 37 m and 20 m) are identified between 1981-91, evidence that other recent eruptions have occurred along this spreading ridge segment.
Chadwick William W. Jr.
Embley Robert W.
Fox Christopher G.
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