Hydrothermal recharge and discharge across 50 km guided by seamounts on a young ridge flank

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doi: 10.1038/nature1352
Author(s): Fisher, A. T.; Davis, E. E.; Hutnak, M.; Spiess, V.; Zühlsdorff, L.; Cherkaoui, A.; Christiansen, L.; Edwards, K.; Macdonald, R.; Villinger, H.; Mottl, M. J.; Wheat, C. G.; Becker, K.
Author Affiliation(s): Primary:
University of California at Santa Cruz, Earth Sciences Department, Santa Cruz, CA, United States
Geological Survey of Canada, Canada
University of Bremen, Federal Republic of Germany
Johns Hopkins University, United States
Rosenstiel School of Marine and Atmospheric Science, United States
University of Hawaii, United States
University of Alaska, United States
Volume Title: Nature (London)
Source: Nature (London), 421(6923), p.618-621. Publisher: Macmillan Journals, London, United Kingdom. ISSN: 0028-0836 CODEN: NATUAS
Note: In English. 29 refs.; illus., incl. sketch maps
Summary: Results are presented of data from swath mapping, heat flow, geochemical and seismic surveys on the E flank of the Juan de Fuca ridge, NE Pacific. Localities of sampling fluids are shown on sketch maps, with Mg concentrations and 14C ages of upper basement pore fluids. Basement outcrops penetrate thick sediments and guide hydrothermal discharge and recharge fluids over sites separated by > 50 km. The results explain how much of the sea-floor shows pervasive advective heat loss, even though sealed by thick sediments.
Year of Publication: 2003
Research Program: ODP Ocean Drilling Program
Key Words: 07 Marine Geology and Oceanography; 18 Geophysics, Solid-Earth; Absolute age; Anomalies; C-14; Carbon; Cenozoic; Circulation; Depositional environment; Discharge; East Pacific; Geophysical methods; Geophysical profiles; Geophysical surveys; Heat flow; Hydrothermal conditions; Isotopes; Juan de Fuca Ridge; Leg 168; Lithosphere; North Pacific; Northeast Pacific; ODP Site 1026; Ocean Drilling Program; Ocean floors; Oceanic lithosphere; Pacific Ocean; Pleistocene; Quaternary; Radioactive isotopes; Recharge; Sea water; Seamounts; Seismic methods; Seismic profiles; Surveys
Coordinates: N474556 N474556 W1274526 W1274526
Record ID: 2003044858
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom