Helium, heat and the generation of hydrothermal event plumes at mid-ocean ridges; discussion and reply

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doi: 10.1016/S0012-821X(00)00150-3
Authors:Palmer, M. R.; Ernst, G. G. J.; Lupton, J. E.; Baker, E. T.; Massoth, G. J.
Author Affiliations:Primary:
Imperial College, T. H. Huxley School, London, United Kingdom
University of Bristol, United Kingdom
NOAA, United States
Institute of Geological and Nuclear Sciences, New Zealand
Volume Title:Earth and Planetary Science Letters
Source:Earth and Planetary Science Letters, 180(1-2), p.215-222. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0012-821X
Publication Date:2000
Note:In English. For reference to original see Lupton, J. E., et al., Earth Planet. Sci. Lett., Vol. 171, p. 343-350, 1999. 37 refs.
Summary:Lupton et al. conclude that the 3He heat systematics of hydrothermal plumes supports a reservoir emptying model for generation of event plumes, arguing against a pillow basalt cooling model. It is suggested that this model or one advocating cooling of a dyke, are unsupported by field data and use untested assumptions about oceanic crust hydrothermal circulation. Conversely, generation of event plumes by pillow basalt cooling uses field observations that show lava is rapidly erupted onto the seafloor. Pillows rapidly cool to ambient T with transfer of heat to overlying water; this heat transfer is understood. [J.F.]
Sections:Physical properties of rocks and minerals
Subjects:Basalts; Cooling; Crust; Dikes; Eruptions; Geochemistry; He-3; Heat sources; Helium; Hydrothermal alteration; Hydrothermal vents; Igneous rocks; Intrusions; Isotopes; Lava; Metasomatism; Mid-ocean ridges; Models; Noble gases; Ocean floors; Oceanic crust; Physicochemical properties; Pillow lava; Plumes; Porosity; Sea water; Stable isotopes; Volcanic rocks; Water-rock interaction; East Pacific; Gorda Rise; North Pacific; Northeast Pacific; Pacific Ocean
Abstract Numbers:01M/1138
Record ID:2000060744
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from CAPCAS, Elsevier Scientific Publishers
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