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  • 1
    Online Resource
    Online Resource
    The Vent and Seep Biota : Aspects from Microbes to Ecosystems (2010)
    Dordrecht : Springer Netherlands
    Details Availability
    Keywords: Deep-sea biology ; Deep-sea ecology ; Hydrothermal vent ecology ; Hydrothermal vents -- Microbiology ; Evolution (Biology) ; Paleoecology ; Deep-sea biology.. ; Deep-sea ecology.. ; Hydrothermal vent ecology.. ; Hydrothermal vents ; Microbiology.. ; Evolution (Biology) ; Paleoecology ; Electronic books
    Description / Table of Contents: This book highlights recent advances in a range of vent and seep-related topics, including cases of host-symbiont coevolution, worms living on frozen methane, and a fossil record providing insights into the history of these ecosystems since the Paleozoic.
    Type of Medium: Online Resource
    Pages: 1 online resource (494 pages)
    ISBN: 9789048195725
    Series Statement: Topics in Geobiology Ser. v.33
    URL: https://ebookcentral.proquest.com/lib/kxp/detail.action?docID=646256
    DDC: 578.7799
    Language: English
    Note: Description based on publisher supplied metadata and other sources
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  • 2
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    Stable isotope analysis and biomarkers of carbonates from the Columbia River in southwestern Washington, USA (2012)
    PANGAEA
    In:  Supplement to: Küchler, Rony R; Birgel, Daniel; Kiel, Steffen; Freiwald, André; Goedert, James L; Thiel, Volker; Peckmann, Jörn (2012): Miocene methane-derived carbonates from southwestern Washington, USA and a model for silicification at seeps. Lethaia, 45(2), 259-273, https://doi.org/10.1111/j.1502-3931.2011.00280.x
    Details
    Publication Date: 2023-11-20
    Description: Exotic limestone masses with silicified fossils, enclosed within deep-water marine siliciclastic sediments of the Early to Middle Miocene Astoria Formation, are exposed along the north shore of the Columbia River in southwestern Washington, USA. Samples from four localities were studied to clarify the origin and diagenesis of these limestone deposits. The bioturbated and reworked limestones contain a faunal assemblage resembling that of modern and Cenozoic deep-water methane-seeps. Five phases make up the paragenetic sequence: (1) micrite and microspar; (2) fibrous, banded and botryoidal aragonite cement, partially replaced by silica or recrystallized to calcite; (3) yellow calcite; (4) quartz replacing carbonate phases and quartz cement; and (5) equant calcite spar and pseudospar. Layers of pyrite frequently separate different carbonate phases and generations, indicating periods of corrosion. Negative d13Ccarbonate values as low as -37.6 per mill V-PDB reveal an uptake of methane-derived carbon. In other cases, d13Ccarbonate values as high as 7.1 per mill point to a residual, 13C-enriched carbon pool affected by methanogenesis. Lipid biomarkers include 13C-depleted, archaeal 2,6,10,15,19-pentamethylicosane (PMI; d13C: -128 per mill), crocetane and phytane, as well as various iso- and anteiso-carbon chains, most likely derived from sulphate-reducing bacteria. The biomarker inventory proves that the majority of the carbonates formed as a consequence of sulphate-dependent anaerobic oxidation of methane. Silicification of fossils and early diagenetic carbonate cements as well as the precipitation of quartz cement - also observed in other methane-seep limestones enclosed in sediments with abundant diatoms or radiolarians - is a consequence of a preceding increase of alkalinity due to anaerobic oxidation of methane, inducing the dissolution of silica skeletons. Once anaerobic oxidation of methane has ceased, the pH drops again and silica phases can precipitate.
    Keywords: Center for Marine Environmental Sciences; MARUM
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 3
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    Electron microprobe results of clay minerals from samples of the Frankenwald and the Thüringer Wald (2010)
    PANGAEA
    In:  Supplement to: Eickmann, Benjamin; Bach, Wolfgang; Kiel, Steffen; Reitner, Joachim; Peckmann, Jörn (2009): Evidence for cryptoendolithic life in Devonian pillow basalts of Variscan orogens, Germany. Palaeogeography, Palaeoclimatology, Palaeoecology, 283, 120-125, https://doi.org/10.1016/j.palaeo.2009.09.006
    Details
    Publication Date: 2023-11-20
    Description: Late Devonian (Frasnian) pillow basalts from the Frankenwald and Thüringer Wald within the Saxothuringian zone in Germany were found to contain abundant putative biogenic filaments, indicating that the volcanic rocks once harbored microbial life. The mineralized filaments are found in calcite-filled amygdules (former vesicles), where they started to form on internal surfaces of vesicles after seawater ingress. The filaments postdate an early fibrous carbonate cement but predate later equant calcite spar, revealing syngenetic formation. A biogenic origin of filaments is indicated by their size and morphology resembling modern microorganisms, their independence of crystal faces and cleavage plans, complex branching patterns, and internal segmentation. The filamentous microorganisms represent cryptoendoliths that lived in structural cavities of the basalt. They became preserved upon microbial clay authigenesis similar to the encrustation of modern prokaryotes in iron-rich environments. Filaments consist of clay minerals with the endmember composition berthierine-chamosite and illite-glauconite. Based on the discovery of fossilized filamentous microorganisms in Late Devonian pillow basalts of the Saxothurigian zone that are similar to filaments previously found in Middle Devonian pillow basalts of the Rhenohercynian zone, it is apparent that cryptoendolithic life was more widespread than previously recognized. Structural cavities within seafloor basalt may thus represent a common, perhaps universal niche for life in the oceanic crust.
    Keywords: Aluminium oxide; Calcium oxide; Calculated; Center for Marine Environmental Sciences; Chromium(III) oxide; Electron microprobe JEOL JXA 8900R; Facies name/code; Frankenwald, northern Bavaria, Germany; FW-05-b; Geological sample; GEOS; Iron oxide, FeO; Magnesium oxide; Manganese oxide; MARUM; Potassium oxide; Sample ID; Silicon dioxide; Sum; TH-be-08-09C; Thuringian Forest, Germany; Titanium dioxide
    Type: Dataset
    Format: text/tab-separated-values, 1488 data points
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    DATA PANGAEA
  • 4
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    (Table 2) Compilation of biomarker data (hydrocarbon and fatty acid fractions) from the Miocene seep carbonates from the Astoria Formation (2012)
    PANGAEA
    Details
    Publication Date: 2023-11-20
    Keywords: 447; 6132; Center for Marine Environmental Sciences; Columbia River, Washington State, USA; Compounds; Event label; HAND; JLG_447; LACMIP_6132; Lipids; MARUM; Mass spectrometer Finnigan MAT 252; Reference/source; Sampling by hand; δ13C
    Type: Dataset
    Format: text/tab-separated-values, 110 data points
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  • 5
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    Oxygen and carbon stable isotope analysis of samples from the Columbia River (2012)
    PANGAEA
    Details
    Publication Date: 2023-11-20
    Keywords: 447; 497; 6132; Center for Marine Environmental Sciences; Columbia River, Washington State, USA; Event label; HAND; JLG_447; JLG_497; LACMIP_6132; M2790; MARUM; Mass spectrometer Finnigan MAT 252; Phase; Sampling by hand; USGS_M2790; δ13C, calcite; δ13C, standard deviation; δ18O, calcite; δ18O, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 275 data points
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    DATA PANGAEA
  • 6
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    Traces of the bone-eating annelid Osedax in Oligocene whale teeth and fish bones (2018)
    Springer-Verlag | Berlin/Heidelberg
    Details
    Publication Date: 2021-04-27
    Description: The range of substrates that the bone-eating marine worm Osedax is able to consume has important implications for its evolutionary history, especially its potential link to the rise of whales. Once considered a whale specialist, recent work indicates that Osedax consumes a wide range of vertebrate remains, including whale soft tissue and the bones of mammals, birds and fishes. Traces resembling those produced by living Osedax have now been recognized for the first time in Oligocene whale teeth and fish bones from deep-water strata of the Makah, Pysht and Lincoln Creek formations in western Washington State, USA. The specimens were acid etched from concretions, and details of the borehole morphology were investigated using micro-computed tomography. Together with previously published Osedax traces from this area, our results show that by Oligocene time Osedax was able to colonize the same range of vertebrate remains that it consumes today and had a similar diversity of root morphologies. This supports the view that a generalist ability to exploit vertebrate bones may be an ancestral trait of Osedax.
    Keywords: Deep-sea; Trace fossil; Osedax; Whale; Fish; Micro-CT; Tiefsee; Spurenfossil; Osedax; Wal; Fisch; Micro-CT ; 551 ; Earth Sciences; Paleontology
    Language: English
    Type: article , publishedVersion
    Format: application/pdf
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  • 7
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    Catshark egg capsules from a Late Eocene deep-water methane-seep deposit in western Washington State, USA (2018)
    Details
    Publication Date: 2021-03-29
    Description: Fossil catshark egg capsules, Scyliorhinotheca goederti gen. et sp. nov., are reported from a Late Eocene deep−water methane−seep calcareous deposit in western Washington State, USA. The capsules are preserved three−dimensionally and some show mineralized remnants of the ribbed capsule wall consisting of small globular crystals that are embedded in a microsparitic matrix. The globules are calcitic, but a strontium content of 2400–3000 ppm suggests that they were origi− nally aragonitic. The carbonate enclosing the egg capsules, and the capsule wall itself, show 13C values as low as −36.5‰, suggesting that formation was induced by the anaerobic oxidation of methane and hence in an anoxic environ− ment. We put forward the following scenario for the mineralization of the capsule wall: (i) the collagenous capsules expe− rienced a sudden change from oxic to anoxic conditions favouring an increase of alkalinity; (ii) this led to the precipitation of aragonitic globules within the collagenous capsule wall; (iii) subsequently the remaining capsule wall was mineralized by calcite or aragonite; (iv) finally the aragonitic parts of the wall recrystallized to calcite. The unusual globular habit of the early carbonate precipitates apparently represents a taphonomic feature, resulting from mineralization mediated by an organic matrix. Taphonomic processes, however, are at best contributed to an increase of alkalinity, which was mostly driven by methane oxidation at the ancient seep site
    Keywords: Elasmobranchia; Scyliorhinidae; taphonomy; exceptional preservation; collagen; Late Eocene; Washing− ton State; USA. ; 551
    Language: English
    Type: article , publishedVersion
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  • 8
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    Effects of sample storage and shell orientation on LA-ICPMS trace element measurements on deep-sea mussels. (2018)
    Details
    Publication Date: 2021-03-29
    Description: Geochemical markers are being increasingly applied to fundamental questions in population and community ecology in marine habitats because they allow inferences on individuals dispersal, but vital effects, small sample size and instrumental limitation are still challenging particularly in deep-sea studies. Here we use shells of the deep-sea bivalve Idas modiolaeformis to assess potential effects of sample storage, mineralogy, and valve orientation on LA-ICPMS measurements. Trace element concentrations of (24)Mg, (43)Ca, (88)Sr, (137)Ba, (208)Pb, and (238)U are not affected by the two most commonly used storage methods of biologic deep-sea samples (frozen at -20°C and fixed in 95% ethanol); thus combined analysis of differently preserved specimens is possible when the number of individuals is insufficient and distinct sample fixation is needed for multiple purposes. Valve orientation had a strong impact on quantification of trace elements in the calcitic but not in the aragonitic layer of adult shells. Hence, to enable comparisons between adult shells and entirely aragonitic embryonic shells, a reference map of site-specific signatures can potentially be generated using the aragonitic layer of the adult shells. Understanding ontogenetic changes and environmental effects in trace element incorporation is critical before geochemical fingerprinting can be used as a tool for larval dispersal studies in the deep-sea.
    Keywords: sample storage; shell orientation; LA-ICPMS; deepsea mussels ; 551
    Language: English , English
    Type: article , publishedVersion
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  • 9
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    Cenozoic Methane-Seep Faunas of the Caribbean Region. (2018)
    Details
    Publication Date: 2021-03-29
    Description: We report new examples of Cenozoic cold-seep communities from Colombia, Cuba, the Dominican Republic, Trinidad, and Venezuela, and attempt to improve the stratigraphic dating of Cenozoic Caribbean seep communities using strontium isotope stratigraphy. Two seep faunas are distinguished in Barbados: the late Eocene mudstone-hosted 'Joes River fauna' consists mainly of large lucinid bivalves and tall abyssochrysoid gastropods, and the early Miocene carbonate-hosted 'Bath Cliffs fauna' containing the vesicomyid Pleurophopsis, the mytilid Bathymodiolus and small gastropods. Two new Oligocene seep communities from the Sinú River basin in Colombia consist of lucinid bivalves including Elongatolucina, thyasirid and solemyid bivalves, and Pleurophopsis. A new early Miocene seep community from Cuba includes Pleurophopsis and the large lucinid Meganodontia. Strontium isotope stratigraphy suggests an Eocene age for the Cuban Elmira asphalt mine seep community, making it the oldest in the Caribbean region. A new basal Pliocene seep fauna from the Dominican Republic is characterized by the large lucinid Anodontia (Pegophysema). In Trinidad we distinguish two types of seep faunas: the mudstone-hosted Godineau River fauna consisting mainly of lucinid bivalves, and the limestone-hosted Freeman's Bay fauna consisting chiefly of Pleurophopsis, Bathymodiolus, and small gastropods; they are all dated as late Miocene. Four new seep communities of Oligocene to Miocene age are reported from Venezuela. They consist mainly of large globular lucinid bivalves including Meganodontia, and moderately sized vesicomyid bivalves. After the late Miocene many large and typical 'Cenozoic' lucinid genera disappeared from the Caribbean seeps and are today known only from the central Indo-Pacific Ocean. We speculate that the increasingly oligotrophic conditions in the Caribbean Sea after the closure of the Isthmus of Panama in the Pliocene may have been unfavorable for such large lucinids because they are only facultative chemosymbiotic and need to derive a significant proportion of their nutrition from suspended organic matter.
    Description: Open-Access Publikationsfonds 2015
    Keywords: Isotopes; Bivalves; Miocene epoch; Prehistoric animals; Carbonates; Stratigraphy; Cenozoic era; Strontium ; 551
    Language: English , English
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  • 10
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    The paleoecology, habitats, and stratigraphic range of the enigmatic cretaceous brachiopod peregrinella. (2018)
    Details
    Publication Date: 2021-04-25
    Description: Modern and Cenozoic deep-sea hydrothermal-vent and methane-seep communities are dominated by large tubeworms, bivalves and gastropods. In contrast, many Early Cretaceous seep communities were dominated by the largest Mesozoic rhynchonellid brachiopod, the dimerelloid Peregrinella, the paleoecologic and evolutionary traits of which are still poorly understood. We investigated the nature of Peregrinella based on 11 occurrences world wide and a literature survey. All in situ occurrences of Peregrinella were confirmed as methane-seep deposits, supporting the view that Peregrinella lived exclusively at methane seeps. Strontium isotope stratigraphy indicates that Peregrinella originated in the late Berriasian and disappeared after the early Hauterivian, giving it a geologic range of ca. 9.0 (+1.45/-0.85) million years. This range is similar to that of rhynchonellid brachiopod genera in general, and in this respect Peregrinella differs from seep-inhabiting mollusks, which have, on average, longer geologic ranges than marine mollusks in general. Furthermore, we found that (1) Peregrinella grew to larger sizes at passive continental margins than at active margins; (2) it grew to larger sizes at sites with diffusive seepage than at sites with advective fluid flow; (3) despite its commonly huge numerical abundance, its presence had no discernible impact on the diversity of other taxa at seep sites, including infaunal chemosymbiotic bivalves; and (4) neither its appearance nor its extinction coincides with those of other seep-restricted taxa or with global extinction events during the late Mesozoic. A preference of Peregrinella for diffusive seepage is inferred from the larger average sizes of Peregrinella at sites with more microcrystalline carbonate (micrite) and less seep cements. Because other seep-inhabiting brachiopods occur at sites where such cements are very abundant, we speculate that the various vent- and seep-inhabiting dimerelloid brachiopods since Devonian time may have adapted to these environments in more than one way.
    Description: Open-Access-Publikationsfonds 2014
    Keywords: Bivalves; Carbonates; Cements; Cretaceous period; Isotopes; Limestone; Methane; Strontium ; 551
    Language: English , English
    Type: article , publishedVersion
    Format: 19
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