Abstract
EOS, TRANSACTIONS AMERICAN GEOPHYSICAL UNION,
VOL. 88, NO. 7,
PAGE 81, 2007
doi:10.1029/2007EO070001
FEATURE
Volcanic eruptions at East Pacific Rise near 9°50′N
University of Hawaii, Honolulu
NASA Astrobiology Institute
University of Hawaii, Honolulu
NASA Astrobiology Institute
Woods Hole Oceanographic Institution, Woods Hole, Mass.
Woods Hole Oceanographic Institution, Woods Hole, Mass.
Woods Hole Oceanographic Institution, Woods Hole, Mass.
University of Washington, Seattle
Oregon State University, Corvallis
Oregon State University, Corvallis
Lamont-Doherty Earth Observatory, Palisades, N.Y.
Lamont-Doherty Earth Observatory, Palisades, N.Y.
U.S. National Oceanic and Atmospheric Administration, Pacific marine Environmental Laboratory, Seattle, Wash.
Evidence for recent volcanic eruptions along the fast spreading East Pacific Rise (EPR) crest near 9°50′N spanning about 4 to 5 months of activity was discovered in April and May 2006 as a result of studies related to the U.S. National Science Foundation' (NSF) Ridge2000 (R2K) program. In April, during routine recovery and redeployment of ocean-bottom seismometers (OBS) at the EPR R2K Integrated Study Site (ISS) near 9°50′N, eight of 12 OBS could not be recovered [Tolstoy et al, 2006]. Anomalous turbidity and temperature structure in the water column along the ridge axis confirmed scientists' suspicions that the OBS were trapped by a new lava flow.
A resurgence in magmatism recently had been postulated, based on temporal changes observed over the past few years in hydrothermal vent fluid chemistry and temperatures [Von Damm et al, 2004] and increasing microseismicity [Tolstoy et al, 2006].
Citation: (2007), Volcanic eruptions at East Pacific Rise near 9°50′N, Eos Trans. AGU, 88(7), 81, doi:10.1029/2007EO070001.
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