Hydrothermal studies in the aegean sea

Dando, P. R.; Aliani, Stefano; Arab, Hocine; Bianchi, Carlo Nike; Brehmer, M; Cocito, Silvia; Fowler, S. W.; Gundersen, Jens Kristïan; Hooper, LE; Kolbl, R; Kuever, Jan; Линке, Петер; Μακροπουλοσ, Κ.; Meloni, Roberto; Miquel, J-C; Morri, Carla; Müller, Susann; Robinson, Carol; Schlesner, Heinz; Sievert, Stefan M.; Stöhr, Rüdiger; Stüben, Doris; Thomm, Michael; Varnavas, Soterios P.; Ziebis, Wiebke

doi:10.1016/s1464-1909(99)00112-4

Cited by 95 publications

(78 citation statements)

References 27 publications

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“…Contrary to their deep-sea counterparts, such vents are characterized by the lack of vent-specific taxa (Tarasov et al 2005) or by the presence of only one or two non-vent-obligate genera or higher taxa (Dando 2010). In the vicinity of shallow-water hydrothermal vents, not only is seawater temperature locally higher, but venting fluids may also reduce salinity due to the input of ascending meteoric water (Stüben and Glasby 1999;Dando et al 2000), which implies the development of specific biocenoses. The zones of shallow-water hydrothermal seepage are well known for particularly intensive growth of bacteria and microbial mats (cf.…”

Section: Discussion Position In the Ecosystem And Trophic Relationshipsmentioning

confidence: 99%

“…The zones of shallow-water hydrothermal seepage are well known for particularly intensive growth of bacteria and microbial mats (cf. Stanier and Cohen-Bazire 1977;Tunncliffe 1988Tunncliffe , 1991Tunncliffe , 1992aTaviani 1994;Mounji et al 1998;Dando et al 2000;Tarasov et al 2005;Reolid and Abad 2014), which may have provided nourishment for brachiopods feeding on phytoplankton, bacteria, colloidal and dissolved nutrients (Steele-Petrovič 1976, 1979. According to Little et al (2004), some Mesozoic brachiopod taxa may have had chemosymbionts as well (cf.…”

Section: Discussion Position In the Ecosystem And Trophic Relationshipsmentioning

confidence: 99%

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Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków-Częstochowa Upland (southern Poland) and their links to hydrothermal vents

Matyszkiewicz

Krajewski

Kochman

et al. 2016

Facies

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Then, in the Cretaceous, and primarily in the Cenozoic, tectonic discontinuities filled with neptunian dykes were penetrated by karst waters and by hydrothermal solutions, which partly silicified the carbonate material infilling the dykes. The formation of dykes is genetically related to the Late Jurassic, Pan-European stress-field reorganization caused by the opening of the Northern Atlantic and Tethys Oceans.

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Section: Discussion Position In the Ecosystem And Trophic Relationshipsmentioning

confidence: 99%

Section: Discussion Position In the Ecosystem And Trophic Relationshipsmentioning

confidence: 99%

Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków-Częstochowa Upland (southern Poland) and their links to hydrothermal vents

Matyszkiewicz

Krajewski

Kochman

et al. 2016

Facies

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“…The presence of MOB within and below the depth of ANME is surprising, because those two groups should be mutually exclusive given their opposite relationship with oxygen: whereas ANME are inactivated permanently by oxygen (Treude et al, 2005b), MOB depend on oxygen for metabolism. As described by Treude and Ziebis (2010) for Brian Seep, gas bubble migration through permeable sediments can drive pore-water convection that discharges sediment pore water into the ocean (Dando et al, 2000;Haeckel et al, 2007). By continuity, discharged sediment fluid must be replaced, driving a water flow into the sediment.…”

Section: Discussionmentioning

confidence: 99%

Bubble Transport Mechanism: Indications for a gas bubble-mediated inoculation of benthic methanotrophs into the water column

Schmale

Leifer

Deimling

et al. 2015

Continental Shelf Research

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“…Thus, as noted, shallow, near seafloor seawater entrainment may be a crucially important phenomenon. Shallow-sea hydrothermal systems, with large fluxes of free gas, may enhance this seawater entrainment (Dando et al, 2000;Haeckel et al, 2007).…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Subsurface hydrothermal processes and the bioenergetics of chemolithoautotrophy at the shallow-sea vents off Panarea Island (Italy)

et al. 2015

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Please cite this article as: Price, Roy E., LaRowe, Douglas E., Italiano, Francesco, Savov, Ivan, Pichler, Thomas, Amend, Jan P., Subsurface hydrothermal processes and the bioenergetics of chemolithoautotrophy at the shallow-sea vents off Panarea Island (Italy), Chemical Geology (2015Geology ( ), doi: 10.1016Geology ( /j.chemgeo.2015 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. A C C E P T E DM A N U S C R I P T ACCEPTED MANUSCRIPTThe subsurface evolution of shallow-sea hydrothermal fluids is a function of many factors including fluid-mineral equilibria, phase separation, magmatic inputs, and mineral precipitation, all of which influence discharging fluid chemistry and consequently associated seafloor microbial communities. Shallow-sea vent systems, however, are understudied in this regard. In order to investigate subsurface processes in a shallow-sea hydrothermal vent, and determine how these physical and chemical parameters influence the metabolic potential of the microbial communities, three shallow-sea hydrothermal vents associated with Panarea Island (Italy) were characterized.Vent fluids, pore fluids and gases at the three sites were sampled and analyzed for major and minor elements, redox-sensitive compounds, free gas compositions, and strontium isotopes. The corresponding data were used to 1) describe the subsurface geochemical evolution of the fluids and 2) to evaluate the catabolic potential of 61 inorganic redox reactions for in situ microbial communities. Generally, the vent fluids can be hot (up to 135 °C), acidic (pH 1.9-5.7), and sulfidic (up to 2.5 mM H 2 S). Three distinct types of hydrothermal fluids were identified, each with higher temperatures and lower pH, Mg 2+ and SO 4 2-, relative to seawater. Type 1 was consistently more saline than Type 2, and both were more saline than seawater. Type 3 fluids were similar to or slightly depleted in most major ions relative to seawater. End-member calculations of conservative elements indicate that Type 1 and Type 2 fluids are derived from two different sources, most likely 1) a deeper, higher salinity reservoir and 2) a shallower, lower salinity reservoir, respectively, in a layered hydrothermal system. The deeper reservoir records some of the highest end-member Cl concentrations to date, and developed as a result of recirculation A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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Hydrothermal studies in the aegean sea

Cited by 95 publications

References 27 publications

Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków-Częstochowa Upland (southern Poland) and their links to hydrothermal vents

Oxfordian neptunian dykes with brachiopods from the southern part of the Kraków-Częstochowa Upland (southern Poland) and their links to hydrothermal vents

Bubble Transport Mechanism: Indications for a gas bubble-mediated inoculation of benthic methanotrophs into the water column

Subsurface hydrothermal processes and the bioenergetics of chemolithoautotrophy at the shallow-sea vents off Panarea Island (Italy)

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