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It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients

Publikation: Beitrag in FachzeitschriftKonferenzaufsatz in FachzeitschriftForschungPeer-Review

Autoren

  • A. Desens
  • V. E.A. Post
  • G. J. Houben
  • T. Kuhn
  • Thomas Graf

Externe Organisationen

  • Bundesanstalt für Geowissenschaften und Rohstoffe (BGR)
  • Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
  • Technische Universität Dresden

Details

OriginalspracheEnglisch
Aufsatznummer00008
FachzeitschriftE3S Web of Conferences
Jahrgang54
PublikationsstatusVeröffentlicht - 17 Sept. 2018
Veranstaltung25th Salt Water Intrusion Meeting, SWIM 2018 - Gdansk, Polen
Dauer: 17 Juni 201822 Juni 2018

Abstract

Groundwater flow beneath the oceans plays an important role for cooling the earth's crust and geochemical cycles, yet it remains an understudied subject in hydrogeology. This contribution focuses on the circulation of seawater through basalt covered by deep-sea sediments in the equatorial northeast Pacific Ocean. Numerical model simulations are used to infer the factors controlling the flow patterns that develop between basalt outcrops. The energy to drive the flow is derived from the crustal heat flux. It is found that the sediment thickness plays a key role in determining the development of hydrothermal siphons, i.e. the flow between two adjacent seamounts where one acts as a recharge point and the other as a discharge point for seawater. Amongst the various factors tested, the outcrop width was an important factor as well.

ASJC Scopus Sachgebiete

Zitieren

It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients. / Desens, A.; Post, V. E.A.; Houben, G. J. et al.
in: E3S Web of Conferences, Jahrgang 54, 00008, 17.09.2018.

Publikation: Beitrag in FachzeitschriftKonferenzaufsatz in FachzeitschriftForschungPeer-Review

Desens, A, Post, VEA, Houben, GJ, Kuhn, T, Walther, M & Graf, T 2018, 'It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients', E3S Web of Conferences, Jg. 54, 00008. https://doi.org/10.1051/e3sconf/20185400008, https://doi.org/10.15488/4269
Desens, A., Post, V. E. A., Houben, G. J., Kuhn, T., Walther, M., & Graf, T. (2018). It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients. E3S Web of Conferences, 54, Artikel 00008. https://doi.org/10.1051/e3sconf/20185400008, https://doi.org/10.15488/4269
Desens A, Post VEA, Houben GJ, Kuhn T, Walther M, Graf T. It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients. E3S Web of Conferences. 2018 Sep 17;54:00008. doi: 10.1051/e3sconf/20185400008, 10.15488/4269
Desens, A. ; Post, V. E.A. ; Houben, G. J. et al. / It’s hydrogeology but not as we know it: Sub seafloor groundwater flow driven by thermal gradients. in: E3S Web of Conferences. 2018 ; Jahrgang 54.
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AU - Post, V. E.A.

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AU - Graf, Thomas

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