The growth of siliceous sinter deposits around high-temperature eruptive hot springs

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dc.contributor.author Boudreau, AE en
dc.contributor.author Lynne, Bridget en
dc.date.accessioned 2017-10-23T23:21:23Z en
dc.date.issued 2012-12-01 en
dc.identifier.citation Journal of Volcanology and Geothermal Research 247-248:1-8 01 Dec 2012 en
dc.identifier.issn 0377-0273 en
dc.identifier.uri http://hdl.handle.net/2292/36196 en
dc.description.abstract Siliceous hot spring deposits (sinter) are of interest as they are indicative of hydrothermal resources at depth and may provide evidence for early life on Earth and possibly Mars. Numeric models of concurrent evaporation and opal-A precipitation around high temperature ( > 73. °C), eruptive hot spring vents such as geysers show that silica is most efficiently precipitated by complete evaporation owing to very sluggish growth kinetics for silica precipitation from supersaturated hydrothermal water. Where evaporation is complete between geyser events, areas of initially deeper water precipitate more silica that, over time, fill in topographic lows to produce a smooth surface. In contrast, incomplete evaporation, in which water is left in low areas prior to being washed away by the next geyser event (or equivalently where there is continuous surface flow in topographic low areas), tends to enhance the growth of minor topographic highs and leads to an increase in surface roughness such as seen in the development of "knobby" geyserite sinter texture around vents. en
dc.publisher Elsevier en
dc.relation.ispartofseries Journal of Volcanology and Geothermal Research en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title The growth of siliceous sinter deposits around high-temperature eruptive hot springs en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.jvolgeores.2012.07.008 en
pubs.begin-page 1 en
pubs.volume 247-248 en
dc.rights.holder Copyright: Elsevier en
pubs.end-page 8 en
pubs.publication-status Published en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 360757 en
pubs.org-id Engineering en
pubs.org-id Engineering Science en
pubs.record-created-at-source-date 2017-10-24 en


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