Evidence map›Paper›PMID 40973893›Full record

ArticleScientific reports2025

Coupled hydrothermal venting and hydrocarbon seepage discovered at Conical Seamount, Papua New Guinea.

Philipp A Brandl, Sylvia G Sander, Christoph Beier, Mark Schmidt, Jan J Falkenberg, Terue Kihara, Klaas Meyn, Felix Genske, Rebecca Zitoun, Brent I A McInnes and 10 more

Abstract read
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Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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4 · The record

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5 · Who and what money

Authors and funding

20 authors.

Philipp A BrandlGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany. pbrandl@geomar.de.ORCID http://orcid.org/0000-0001-6863-5262
Sylvia G SanderGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Christoph BeierDepartment of Geosciences and Geography, Research Programme of Geology and Geophysics (GeoHel), University of Helsinki, Helsinki, Finland.
Mark SchmidtGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Jan J FalkenbergGeoZentrum Nordbayern, Friedrich-Alexander University Erlangen- Nürnberg, Erlangen, Germany.
Terue KiharaINES Integrated Environmental Solutions UG, Wilhelmshaven, Germany.
Klaas MeynINES Integrated Environmental Solutions UG, Wilhelmshaven, Germany.
Felix GenskeInstitute of Mineralogy, University of Münster, Münster, Germany.
Rebecca ZitounGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Brent I A McInnesJohn de Laeter Centre, Faculty of Science and Engineering, Curtin University, Perth, Australia.
Mark D HanningtonDepartment of Earth and Environmental Sciences, University of Ottawa, Ottawa, Canada.
Sven PetersenGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Eemu J RantaDepartment of Geosciences and Geography, Research Programme of Geology and Geophysics (GeoHel), University of Helsinki, Helsinki, Finland.
Fred JourdanWestern Australian Argon Isotope Facility, School of Earth and Planetary Sciences, John de Laeter Centre for Isotope Research and C-FIGS, Curtin University, Perth, Australia.
Louis-Maxime GautreauGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Thor H HansteenGEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany.
Ingo HeydeFederal Institute of Geosciences and Natural Resources (BGR), Hannover, Germany.
Stanis KonabeEarth Sciences Division, School of Natural and Physical Sciences, The University of Papua New Guinea, Port Moresby, Papua New Guinea.
Joseph O EspiEarth Sciences Division, School of Natural and Physical Sciences, The University of Papua New Guinea, Port Moresby, Papua New Guinea.
SO299 Shipboard Scientific Party

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During research expedition SO299 with the German RV Sonne, we discovered the first deep-sea hydrothermal vent system along the Tabar-Lihir-Tanga-Feni island chain in northeastern Papua New Guinea. The Karambusel vent field is hosted by a volcanic center on the western flank of Conical Seamount that formed ~ 89 ka ago. Karambusel is remarkable in that it hosts both a fossil high-temperature, gold-rich mineralization and an active low-temperature (< 51 °C) vent system precipitating arsenic-, antimony-, thallium-, and mercury-rich sulfide minerals. Chemosymbiotic fauna is associated with the vent system and we identified more endemic species than in previous studies on nearby seeps. Our study shows that the magmatic event at Karambusel likely triggered the epithermal mineralization at Karambusel and at the central summit of Conical Seamount. The current hydrothermal fluids originate from condensed magmatic vapor or connate fluids. Gas bubbles were observed at some vent sites and the proportion of methane in the gas phase exceeds that of any other hydrothermal vent system. The composition of the light hydrocarbons points towards a thermogenic origin. Karambusel is thus the first hybrid magmatic-hydrothermal vent and hydrocarbon seep system discovered globally which explains the highly endemic vent fauna as a consequence of the unique ecological niche.

Identifiers

PMID40973893
PMCPMC12449473

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