Borehole components of the Surtsey subsurface observatory. (a) HWT (11.43 cm outer diameter) steel casing surrounds the aluminum casing to 9.54 m.b.s.; (b, c) components of the wellhead. (d) Conical NQ (69 mm OD) aluminum casing shoe, 25.4 cm (10 in.) in length. (e) Perforated NQ aluminum casing pipe, 3.66 m (12 ft) in length.

These are the members of the SUSTAIN team that contributed to this article.

Andreas Türke1, Marie D. Jackson2, Wolfgang Bach1, Wolf-Achim Kahl1, Brian Grzybowski3, Beau Marshall4, Magnús T. Gudmundsson5, and Steffen Leth Jørgensen6

  • 1Department of Geosciences and MARUM, University of Bremen, Bremen 28357, Germany
  • 2Department of Geology and Geophysics, University of Utah, Salt Lake City, Utah 84102, USA
  • 3L3 Technologies Inc., Communications and Networked Systems, Salt Lake City, Utah 84116, USA
  • 4DOSECC Exploration Services, Salt Lake City, Utah 84101, USA
  • 5Nordvulk, Institute of Earth Sciences, University of Iceland, Reykjavík, Iceland
  • 6K.G. Jebsen Centre for Deep Sea Research, Department of Earth Science, University of Bergen, Bergen, Norway

Correspondence: Steffen Leth Jørgensen (

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