Search Results - "SAHLING, Heiko"
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Fueled by methane: deep-sea sponges from asphalt seeps gain their nutrition from methane-oxidizing symbionts
Published in The ISME Journal (01-05-2019)“…Sponges host a remarkable diversity of microbial symbionts, however, the benefit their microbes provide is rarely understood. Here, we describe two new sponge…”
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Methane gas emissions of the Black Sea—mapping from the Crimean continental margin to the Kerch Peninsula slope
Published in Geo-marine letters (01-08-2020)“…This study focuses on gas bubble emissions across ~ 1800 km 2 of the southeastern continental slope of the Crimean Peninsula in the Eastern Black Sea basin. In…”
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Methane fluxes and carbonate deposits at a cold seep area of the Central Nile Deep Sea Fan, Eastern Mediterranean Sea
Published in Marine geology (01-01-2014)“…High acoustic seafloor-backscatter signals characterize hundreds of patches of methane-derived authigenic carbonates and chemosynthetic communities associated…”
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Patterns of carbonate authigenesis at the Kouilou pockmarks on the Congo deep-sea fan
Published in Marine geology (15-01-2010)“…Different types of seep carbonates were recovered from the ‘Kouilou pockmarks’ on the Congo deep-sea fan in approximately 3100 m water depth. The carbonate…”
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Long-term in situ observations at the Athina mud volcano, Eastern Mediterranean: Taking the pulse of mud volcanism
Published in Tectonophysics (28-11-2017)“…Long-term monitoring on mud volcanoes is fundamental to unravel episodic processes and transient changes that might otherwise be missed by using snapshot…”
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Massive asphalt deposits, oil seepage, and gas venting support abundant chemosynthetic communities at the Campeche Knolls, southern Gulf of Mexico
Published in Biogeosciences (11-08-2016)“…Hydrocarbon seepage is a widespread process at the continental margins of the Gulf of Mexico. We used a multidisciplinary approach, including multibeam mapping…”
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Molecular and isotopic partitioning of low-molecular-weight hydrocarbons during migration and gas hydrate precipitation in deposits of a high-flux seepage site
Published in Chemical geology (30-01-2010)“…Detailed knowledge of the extent of post-genetic modifications affecting shallow submarine hydrocarbons fueled from the deep subsurface is fundamental for…”
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SLOW VOLCANOES: The Intriguing Similarities Between Marine Asphalt and Basalt Lavas
Published in Oceanography (Washington, D.C.) (01-06-2018)“…In 2003, the Chapopote asphalt flow was discovered in the southern Gulf of Mexico at a depth of 2,900 m. Subsequent exploration has expanded the known extent…”
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Vesicomyidae (bivalvia): current taxonomy and distribution
Published in PloS one (01-04-2010)“…Vesicomyid bivalves are a consistent component of communities of sulphide-rich reducing environments distributed worldwide from 77 degrees N to 70 degrees S at…”
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Amount and Fate of Gas and Oil Discharged at 3400 m Water Depth From a Natural Seep Site in the Southern Gulf of Mexico
Published in Frontiers in Marine Science (15-11-2019)“…This multi-disciplinary study of the hydrocarbon seepage system at Tsanyao Yang Knoll in the southern Gulf of Mexico illustrates the amount and fate of…”
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Fluxes and fate of dissolved methane released at the seafloor at the landward limit of the gas hydrate stability zone offshore western Svalbard
Published in Journal of geophysical research. Oceans (01-09-2015)“…Widespread seepage of methane from seafloor sediments offshore Svalbard close to the landward limit of the gas hydrate stability zone (GHSZ) may, in part, be…”
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Pockmarks in the Northern Congo Fan area, SW Africa: Complex seafloor features shaped by fluid flow
Published in Marine geology (31-03-2008)“…Three pockmarks named “Hydrate Hole”, “Black Hole”, and “Worm Hole” were studied in the northern Congo Fan area at water depths around 3100 m. The…”
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Abyssogena: a new genus of the family Vesicomyidae (Bivalvia) from deep-water vents and seeps
Published in Journal of molluscan studies (01-05-2010)“…A new genus Abyssogena is established for A. phaseoliformis ( Métivier, Okutani & Ohta, 1986) and A. kaikoi ( Okutani & Métivier, 1986), which were previously…”
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Vodyanitskii mud volcano, Sorokin trough, Black Sea: Geological characterization and quantification of gas bubble streams
Published in Marine and petroleum geology (01-11-2009)“…Vodyanitskii mud volcano is located at a depth of about 2070 m in the Sorokin Trough, Black sea. It is a 500-m wide and 20-m high cone surrounded by a…”
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Fluid venting activity on the Costa Rica margin: new results from authigenic carbonates
Published in International journal of earth sciences : Geologische Rundschau (01-09-2004)“…Carbonate precipitates on mounds and along tectonic scarps off the Costa Rica margin are manifestations of subduction-induced dewatering. The long-term…”
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Depth-related structure and ecological significance of cold-seep communities: a case study from the Sea of Okhotsk
Published in Deep-sea research. Part I, Oceanographic research papers (01-12-2003)“…We discovered and investigated several cold-seep sites in four depth zones of the Sea of Okhotsk off Northeast Sakhalin: outer shelf (160-250 m), upper slope…”
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Fluid venting in the eastern Aleutian Subduction Zone
Published in Journal of Geophysical Research (10-02-1998)“…Fluid venting has been observed along 800 km of the Alaska convergent margin. The fluid venting sites are located near the deformation front, are controlled by…”
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Quantifying fluid flow, solute mixing, and biogeochemical turnover at cold vents of the eastern Aleutian subduction zone
Published in Geochimica et cosmochimica acta (01-12-1997)“…In situ oxygen fluxes were measured at vent sites in the Aleutian trench at a water depth of almost 5000 m using a TV-guided benthic flux chamber. The flux was…”
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Quantification of gas bubble emissions from submarine hydrocarbon seeps at the Makran continental margin (offshore Pakistan)
Published in Journal of Geophysical Research: Oceans (01-10-2012)“…Evidence for twelve sites with gas bubble emissions causing hydroacoustic anomalies in 18 kHz echosounder records (‘flares’) was obtained at the convergent…”
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Geological control and magnitude of methane ebullition from a high-flux seep area in the Black Sea—the Kerch seep area
Published in Marine geology (01-08-2012)“…We investigated gas bubble emissions at the Don–Kuban paleo-fan in the northeastern Black Sea regarding their geological setting, quantities as well as spatial…”
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