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Scientific Drilling The open-access ICDP and IODP journal

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Sci. Dril., 20, 51-58, 2015
https://doi.org/10.5194/sd-20-51-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Workshop report
17 Dec 2015
Time-lapse characterization of hydrothermal seawater and microbial interactions with basaltic tephra at Surtsey Volcano
M. D. Jackson1, M. T. Gudmundsson2, W. Bach3, P. Cappelletti4, N. J. Coleman5, M. Ivarsson6, K. Jónasson7, S. L. Jørgensen8, V. Marteinsson9, J. McPhie10, J. G. Moore11, D. Nielson12, J. M. Rhodes13, C. Rispoli4, P. Schiffman14, A. Stefánsson2, A. Türke3, T. Vanorio15, T. B. Weisenberger16, J. D. L. White17, R. Zierenberg14, and B. Zimanowski18 1Department of Civil and Environmental Engineering, University of California Berkeley, California, USA
2Nordvulk, Institute of Earth Sciences, University of Iceland, Reykjavík, Iceland
3University of Bremen, Department of Geosciences, Bremen, Germany
4Dipartimento di Scienze della Terra, dell'Ambiente e delle Risorse (DiSTAR), University FEDERICO II, Naples, Italy
5Department of Pharmaceutical, Chemical and Environmental Science, University of Greenwich, Kent, UK
6Department of Palaeobiology, Swedish Museum of Natural History, Stockholm, Sweden
7Icelandic Institute of Natural History, Gardabaer, Iceland
8Centre for Geobiology, Department of Biology, University of Bergen, Norway
9Matís, Food Safety, Environment & Genetics, Reykjavík, Iceland, Agricultural University of Iceland, Hvanneyri, 311 Borgarnes, Iceland
10Department of Earth Sciences, University of Tasmania, Hobart, Australia
11U.S. Geological Survey, Menlo Park, California, USA
12DOSECC Exploration Services, 2075 Pioneer Rd., Salt Lake City, Utah, USA
13Department of Geosciences, University of Massachusetts, Amherst, USA
14Department of Geology, University of California Davis, California, USA
15Stanford Rock Physics Laboratory, Geophysics Department, Stanford, California, USA
16ÍSOR, Iceland GeoSurvey, Reykjavík, Iceland
17Geology Department, University of Otago, Dunedin, New Zealand
18Institut für Geographie und Geologie, Universität Würzburg, Würzburg, Germany
Abstract. A new International Continental Drilling Program (ICDP) project will drill through the 50-year-old edifice of Surtsey Volcano, the youngest of the Vestmannaeyjar Islands along the south coast of Iceland, to perform interdisciplinary time-lapse investigations of hydrothermal and microbial interactions with basaltic tephra. The volcano, created in 1963–1967 by submarine and subaerial basaltic eruptions, was first drilled in 1979. In October 2014, a workshop funded by the ICDP convened 24 scientists from 10 countries for 3 and a half days on Heimaey Island to develop scientific objectives, site the drill holes, and organize logistical support. Representatives of the Surtsey Research Society and Environment Agency of Iceland also participated. Scientific themes focus on further determinations of the structure and eruptive processes of the type locality of Surtseyan volcanism, descriptions of changes in fluid geochemistry and microbial colonization of the subterrestrial deposits since drilling 35 years ago, and monitoring the evolution of hydrothermal and biological processes within the tephra deposits far into the future through the installation of a Surtsey subsurface observatory. The tephra deposits provide a geologic analog for developing specialty concretes with pyroclastic rock and evaluating their long-term performance under diverse hydrothermal conditions. Abstracts of research projects are posted at http://surtsey.icdp-online.org.

Citation: Jackson, M. D., Gudmundsson, M. T., Bach, W., Cappelletti, P., Coleman, N. J., Ivarsson, M., Jónasson, K., Jørgensen, S. L., Marteinsson, V., McPhie, J., Moore, J. G., Nielson, D., Rhodes, J. M., Rispoli, C., Schiffman, P., Stefánsson, A., Türke, A., Vanorio, T., Weisenberger, T. B., White, J. D. L., Zierenberg, R., and Zimanowski, B.: Time-lapse characterization of hydrothermal seawater and microbial interactions with basaltic tephra at Surtsey Volcano, Sci. Dril., 20, 51-58, https://doi.org/10.5194/sd-20-51-2015, 2015.
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A new drilling program at Surtsey Volcano, a 50-year-old oceanic island and UNESCO World Heritage site in Iceland, will undertake interdisciplinary investigations of rift zone volcanism, dynamic hydrothermal mineral assemblages in basaltic tephra, and subterrestrial microbial colonization and succession in altered tephra and hydrothermal fluids. Long-term monitoring of evolving hydrothermal and biological processes will occur through installation of a 200m deep Surtsey subsurface observatory.
A new drilling program at Surtsey Volcano, a 50-year-old oceanic island and UNESCO World...
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