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Contamination tracer testing with seabed drills: IODP Expedition 357

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Orcutt Beth N., Bergenthal Markus, Freudenthal Tim, Smith David, Lilley Marvin D., Schnieders Luzie, Green Sophie, Früh-Green Gretchen L.,
Project Swiss participation in the International Ocean Discovery Program (IODP) through membership in the European Consortium for Ocean Research Drilling (ECORD)
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Original article (peer-reviewed)

Journal Scientific Drilling
Volume (Issue) 23
Page(s) 39 - 46
Title of proceedings Scientific Drilling
DOI 10.5194/sd-23-39-2017

Open Access

URL http://doi.org/10.5194/sd-23-39-2017
Type of Open Access Publisher (Gold Open Access)

Abstract

Abstract. IODP Expedition 357 utilized seabed drills for the first time in the history of the ocean drilling program, with the aim of collecting intact sequences of shallow mantle core from the Atlantis Massif to examine serpentinization processes and the deep biosphere. This novel drilling approach required the development of a new remote seafloor system for delivering synthetic tracers during drilling to assess for possible sample contamination. Here, we describe this new tracer delivery system, assess the performance of the system during the expedition, provide an overview of the quality of the core samples collected for deep biosphere investigations based on tracer concentrations, and make recommendations for future applications of the system.
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