Gotowe bibliografie tematyczne / Seawater signature

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Gotowa bibliografia na temat „Seawater signature”

Autor: Grafiati

Data publikacji: 16 listopada 2024

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Seawater signature"

Kurzweil, Florian, Corey Archer, Martin Wille, Ronny Schoenberg, Carsten Münker, and Olaf Dellwig. "Redox control on the tungsten isotope composition of seawater." Proceedings of the National Academy of Sciences 118, no. 18 (2021): e2023544118. http://dx.doi.org/10.1073/pnas.2023544118.

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Free oxygen represents an essential basis for the evolution of complex life forms on a habitable Earth. The isotope composition of redox-sensitive trace elements such as tungsten (W) can possibly trace the earliest rise of oceanic oxygen in Earth’s history. However, the impact of redox changes on the W isotope composition of seawater is still unknown. Here, we report highly variable W isotope compositions in the water column of a redox-stratified basin (δ186/184W between +0.347 and +0.810 ‰) that contrast with the homogenous W isotope composition of the open ocean (refined δ186/184W of +0.543

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Emmanuel, S., J. A. Schuessler, J. Vinther, A. Matthews, and F. von Blanckenburg. "Iron isotope fractionation in marine invertebrates in near shore environments." Biogeosciences Discussions 11, no. 4 (2014): 5533–55. http://dx.doi.org/10.5194/bgd-11-5533-2014.

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Abstract. Chitons (Mollusca) are marine invertebrates that produce radula (teeth or rasping tongue) containing high concentrations of biomineralized magnetite and other iron bearing minerals. As Fe isotope signatures are influenced by redox processes and biological fractionation, Fe isotopes in chiton radula might be expected to provide an effective tracer of ambient oceanic conditions and biogeochemical cycling. Here, in a pilot study to measure Fe isotopes in marine invertebrates, we examine Fe isotopes in modern marine chiton radula collected from different locations in the Atlantic and Pac

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Emmanuel, S., J. A. Schuessler, J. Vinther, A. Matthews, and F. von Blanckenburg. "A preliminary study of iron isotope fractionation in marine invertebrates (chitons, Mollusca) in near-shore environments." Biogeosciences 11, no. 19 (2014): 5493–502. http://dx.doi.org/10.5194/bg-11-5493-2014.

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Abstract. Chitons (Mollusca) are marine invertebrates that produce radulae (teeth or rasping tongues) containing high concentrations of biomineralized magnetite and other iron-bearing minerals. As Fe isotope signatures are influenced by redox processes and biological fractionation, Fe isotopes in chiton radulae might be expected to provide an effective tracer of ambient oceanic conditions and biogeochemical cycling. Here, in a pilot study to measure Fe isotopes in marine invertebrates, we examine Fe isotopes in modern marine chiton radulae collected from different locations in the Atlantic and

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Renson, Virginie, and Michael D. Glascock. "Lead Isotopes to Identify Underwater Ceramic Contamination: The Example of the Kyrenia Shipwreck (Cyprus)." Minerals 11, no. 6 (2021): 625. http://dx.doi.org/10.3390/min11060625.

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We present the lead isotopic composition of ceramic fragments from the Kyrenia shipwreck (Cyprus), selected from three chemical groups related to the Rhodes and Alimos regions (Greece). Fragments of the lead sheathing covering the ship’s hull and biogenic material formed on some of the ceramic sherds, were analyzed along with sherds from the Rhodes and Alimos source areas for comparison. The objective of this paper was to evaluate the impact of the seawater environment on the isotopic signature of the ceramics, and on our ability to use lead isotopes to source ceramics recovered from seawater.

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Resing, Joseph A., and Francis J. Sansone. "The chemistry of lava-seawater interactions II: the elemental signature." Geochimica et Cosmochimica Acta 66, no. 11 (2002): 1925–41. http://dx.doi.org/10.1016/s0016-7037(01)00897-3.

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Paulukat, Cora, Geoffrey J. Gilleaudeau, Pavel Chernyavskiy, and Robert Frei. "The Cr-isotope signature of surface seawater — A global perspective." Chemical Geology 444 (December 2016): 101–9. http://dx.doi.org/10.1016/j.chemgeo.2016.10.004.

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Ripperger, S., M. Rehkämper, D. Porcelli, and A. N. Halliday. "Cadmium isotope fractionation in seawater — A signature of biological activity." Earth and Planetary Science Letters 261, no. 3-4 (2007): 670–84. http://dx.doi.org/10.1016/j.epsl.2007.07.034.

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Bouchard, Laurianne, Ján Veizer, Laura Kennell-Morrison, Mark Jensen, Ken G. Raven, and Ian D. Clark. "Origin and 87Rb–87Sr age of porewaters in low permeability Ordovician sediments on the eastern flank of the Michigan Basin, Tiverton, Ontario, Canada." Canadian Journal of Earth Sciences 56, no. 3 (2019): 201–8. http://dx.doi.org/10.1139/cjes-2018-0061.

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Porewater extractions and acid leachates of rock core from a 250 m thick sequence of low-permeability Ordovician-age shales and limestones, on the eastern flank of the Michigan Basin, were analysed for strontium isotope ratios in an attempt to infer porewater ages from observed 87Sr/86Sr enrichments. The porewaters originated as Ordovician seawater, which subsequently mixed with evaporated Silurian seawater infiltrating from above, and, to some extent, with a deep brine—with an enriched 87Sr/86Sr signature—from the underlying crystalline shield or deep basin. The porewater 87Sr/86Sr ratios are

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Tignat-Perrier, Romie, Aurélien Dommergue, Alban Thollot, Olivier Magand, Timothy M. Vogel, and Catherine Larose. "Microbial functional signature in the atmospheric boundary layer." Biogeosciences 17, no. 23 (2020): 6081–95. http://dx.doi.org/10.5194/bg-17-6081-2020.

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Abstract. Microorganisms are ubiquitous in the atmosphere, and some airborne microbial cells were shown to be particularly resistant to atmospheric physical and chemical conditions (e.g., ultraviolet – UV – radiation, desiccation and the presence of radicals). In addition to surviving, some cultivable microorganisms of airborne origin were shown to be able to grow on atmospheric chemicals in laboratory experiments. Metagenomic investigations have been used to identify specific signatures of microbial functional potential in different ecosystems. We conducted a comparative metagenomic study on

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Liang, Cheng Hao, Jing Di Yao, Nai Bao Huang, and Jian Hua Wu. "Research on the Shaft-Frequency Electric Field Character of Ship’s Physical Scale Model." Advanced Materials Research 1035 (October 2014): 62–66. http://dx.doi.org/10.4028/www.scientific.net/amr.1035.62.

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By signature gathering system, the shaft-frequency electric field of ship’s physical scale model is measured. At the same time, the mechanism of the corrosion related to shaft-frequency electric field is also described. Results show that the shaft-frequency electric field signature arises around a vessel and transmits in the surrounding seawater due to the current flow from impressed current cathodic protection (ICCP) system and the current flow resulting from the corrosion of dissimilar metals during propeller rotation, which contains both shaft fundamental and harmonics. The signature charac

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Rozprawy doktorskie na temat "Seawater signature"

Aquila, Quentin. "Explorer la géochimie des océans archéens avec les Formations de fer rubanées (BIF) : apport des compositions isotopiques Hf-Nd-Pb." Electronic Thesis or Diss., Université Clermont Auvergne (2021-...), 2024. http://www.theses.fr/2024UCFA0054.

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Les Formations de fer Rubanées (BIF) sont des archives sédimentaires uniques pour étudier les océans primitifs de l'Archéen. Cependant, l'environnement de formation et les mécanismes en jeu dans la formation de ces sédiments chimiques riches en fer et en silicium sont peu contraints. Les BIF ont été très peu étudiés pour leurs compositions isotopiques en Nd-Hf alors qu'elles pourraient permettre d'apporter de nouvelles contraintes sur les sources hydrothermales et continentales alimentant les anciens océans. Pour mieux contraindre l'environnement de formation des BIF, j'ai combiné des aspects

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Miura, Noriko, Yoshihiro Asahara, and Iwao Kawabe. "Rare earth element and Sr isotopic study of the Middle Permian limestone-dolostone sequence in Kuzuu area, central Japan: Seawater tetrad sffect and Sr isotopic signatures of seamount-type carbonate rocks." Dept. of Earth and Planetary Sciences, Nagoya University, 2004. http://hdl.handle.net/2237/7643.

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Reboul, Guillaume. "Metabarcoding and metagenomic approaches to decipher microbial communities in suboxic environments Microbial eukaryotes in the suboxic chemosyn- thetic ecosystem of Movile Cave, Romania Hyper- diverse archaea near life limits at the polyextreme geothermal Dallol area Performance of the melting seawater-ice elution method on the metabarcoding characterization of benthic protist communities Core microbial communities of lacustrine microbialites sampled along an alkalinity gradient Environmental drivers of plankton protist communities along latitudinal and vertical gradients in the oldest and deepest freshwater lake Ancient Adaptive Lateral Gene Transfers in the Symbiotic Opalina-Blastocystis Stramenopile Lineage Marine signature taxa and microbial community stability along latitudinal and vertical gradients in sediments of the deepest freshwater lake." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASL041.

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L’écologie microbienne concerne l’étude des microorganismes et de leurs interactions biotiques et abiotiques dans un écosystème donné. Ces vingt dernières années, l’avancement des techniques moléculaires pour analyser la diversité microbienne et, notamment, les nouvelles technologies de séquençages (NGS) ont permis de surmonter les limitations associées aux approches traditionnelles basées sur la culture et la microscopie. Ces approches moléculaires ont conduit à une accumulation des données de diversité microbienne et de potentiel métabolique dans des communautés microbiennes des écosystèmes

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Części książek na temat "Seawater signature"

Lobato, Lydia Maria, Rosaline Cristina Figueiredo e Silva, Thomas Angerer, Mônica de Cássia Oliveira Mendes, and Steffen G. Hagemann. "Iron Isotopes Applied to BIF-Hosted Iron Deposits." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_13.

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AbstractPublished and unpublished iron isotope data from banded iron formations (BIF) and their BIF-hosted hypogene (hydrothermal) iron ores from the Quadrilátero Ferrífero (itabirites), Corumbá, and Carajás iron districts in Brazil, as well as from the Hamersley province in Australia are presented and discussed. BIF constitutes a typically thinly bedded or laminated chemical sedimentary rock, with ≥ 15% Fe and layers of chert, chalcedony, jasper, or quartz, whereas itabirite is considered a laminated, metamorphosed iron formation rich in iron oxides, which may contain carbonate minerals, amph

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Huston, David L., Robert B. Trumbull, Georges Beaudoin, and Trevor Ireland. "Light Stable Isotopes (H, B, C, O and S) in Ore Studies—Methods, Theory, Applications and Uncertainties." In Isotopes in Economic Geology, Metallogenesis and Exploration. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-27897-6_8.

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AbstractVariations in the abundances of light stable isotopes, particularly those of hydrogen, boron, carbon, oxygen and sulfur, were essential in developing mineralization models. The data provide constraints on sources of hydrothermal fluids, carbon, boron and sulfur, track interaction of these fluids with the rocks at both the deposit and district scales, and establish processes of ore deposition. In providing such constraints, isotopic data have been integral in developing genetic models for porphyry-epithermal, volcanic-hosted massive sulfide, orogenic gold, sediment-hosted base metal and

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Joseph, Antony. "Imaging of Seawater Motion Signatures Using Remote Sensors." In Measuring Ocean Currents. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-415990-7.00005-3.

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Streszczenia konferencji na temat "Seawater signature"

Bortels, Leslie. "Expert 3D Software Simulations for Cathodic Protection in Offshore and Marine Environments." In CORROSION 2009. NACE International, 2009. https://doi.org/10.5006/c2009-09516.

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Abstract This paper presents a 3D software tool for the design and optimization of cathodic protection systems for submerged structures. It provides the corrosion engineer an intelligent tool for managing operational costs, significantly reducing expensive commissioning surveys and costly repairs, adding major value to the cathodic protection business. A Finite Element Model (FEM) is used to solve the potential model taking into account ohmic drop effects in the electrolyte and cabling and non-linear polarization behaviour at both the cathode and anode. From the resulting potential field in th

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Barré, Guillaume, Georges Beaudoin, Crystal LaFlamme, Jean Goutier, and Pierre Cartigny. "The Archean seawater sulfate isotopic signature determined from VMS deposits." In Goldschmidt2022. European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.12186.

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Bertrand, A., C. Ribeiro, and C. MacBeth. "Uncertainties in the 4D Seismic Signature Due to Seawater Velocity Variations." In 66th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2004. http://dx.doi.org/10.3997/2214-4609.201405662.

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Bertrand, Alexandre, Christophe Ribeiro, and Colin MacBeth. "Uncertainties in the 4D seismic signature due to seawater velocity variations." In SEG Technical Program Expanded Abstracts 2004. Society of Exploration Geophysicists, 2004. http://dx.doi.org/10.1190/1.1851214.

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Zheng, Xinyuan, Guy Evans, Xinyang Chen, Soisiri Charin, William Seyfried, and Tianyu Chen. "Can hydrothermal alteration explain the heavy K isotope signature of seawater?" In Goldschmidt2022. European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.12314.

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Bertrand, A., C. Ribeiro, and C. MacBeth. "Uncertainties in the 4D Seismic Signature due to Seawater Velocity Variations." In 66th EAGE Conference & Exhibition. European Association of Geoscientists & Engineers, 2004. http://dx.doi.org/10.3997/2214-4609-pdb.3.a041.

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Drummond, Drew, Robert Blakeman, John H. Ashton, et al. "Ore depositional processes at the carbonate-hosted Tara Deep Zn-Pb deposit, Navan, Ireland." In Irish-type Zn-Pb deposits around the world. Irish Association for Economic Geology, 2023. http://dx.doi.org/10.61153/dqcn2038.

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The Tara Deep Zn-Pb deposit (currently 26.2 Mt @ 8.4% Zn, 1.6% Pb) is the latest major discovery by Boliden Tara Mines (first announced in 2016) which significantly adds to the existing world-class Navan deposit. Located 2 km south of the Navan deposit in Co. Meath, Ireland, economic mineralization is hosted by upper Tournaisian carbonates (Pale Beds; 87% of the total economic resource), within a degraded footwall of a major south-dipping normal fault, and also within lower Visean sedimentary breccias (‘S Fault’ Conglomerates; SFC). Sphalerite and galena are the dominant sulphides, with massiv

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The Tara Deep Zn-Pb deposit (currently 26.2 Mt @ 8.4% Zn, 1.6% Pb) is the latest major discovery by Boliden Tara Mines (first announced in 2016) which significantly adds to the existing world-class Navan deposit. Located 2 km south of the Navan deposit in Co. Meath, Ireland, economic mineralization is hosted by upper Tour-naisian carbonates (Pale Beds; 87% of the total economic resource), within a degraded footwall of a major south-dipping normal fault, and also within lower Visean sedimentary breccias (‘S Fault’ Conglomerates; SFC). Sphalerite and galena are the dominant sulphides, with massi

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Nobile Blanco, Juan Jose, Shiwanshu Shiwam, Amitav Rout, Murilo Andrade, Shekhar Kumbhar, and Fadila Nur Rachman. "Successful Robotic Bullnose Milling in Horizontal Offshore Well Gaining Access for Open Hole Logging." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2025. https://doi.org/10.2118/224056-ms.

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Abstract An offshore multilateral oil producer well, completed in Q1 of 2023 was the target of this operation. The primary objective was to perform a seawater injection trial into a formation and conduct a deep open hole logging, including borehole size measurements for further geological study of the reservoir. To successfully deploy the logging toolstring, it was necessary to mill out a bullnose installed in the bottom-most tubing as part of the completion assembly. Wireline-conveyed mechanical intervention tools, combined with robotic technology, were used to mill the bullnose and restore f

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Hawco, Nicholas, Shun-Chung Yang, Rhea Foreman, et al. "Unique Metal Isotope Signatures from Lava-Seawater Interaction during the 2018 Eruption of Kīlauea." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.981.

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Raporty organizacyjne na temat "Seawater signature"

Mueller, C., S. J. Piercey, M. G. Babechuk, and D. Copeland. Stratigraphy and lithogeochemistry of the Goldenville horizon and associated rocks, Baie Verte Peninsula, Newfoundland. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/328990.

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The Goldenville horizon in the Baie Verte Peninsula is an important stratigraphic horizon that hosts primary (Cambrian to Ordovician) exhalative magnetite and pyrite and was a chemical trap for younger (Silurian to Devonian) orogenic gold mineralization. The horizon is overlain by basaltic flows and volcaniclastic rocks, is intercalated with variably coloured argillites and cherts, and underlain by mafic volcaniclastic rocks; the entire stratigraphy is cut by younger fine-grained mafic dykes and coarser gabbro. Lithogeochemical signatures of the Goldenville horizon allow it to be divided into

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Simandl, G. J., R. J. D'Souza, S. Paradis, and J. Spence. Rare-earth element content of carbonate minerals in sediment-hosted Pb-Zn deposits, southern Canadian Rocky Mountains. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328001.

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Paleozoic platform carbonate rocks of the Rocky Mountains host Mississippi Valley-type (MVT), magnesite, barite, and REE-barite-fluorite deposits. Farther west, platform carbonate rocks of the Kootenay Arc host MVT and fracture-controlled replacement (FCR) deposits. This is the first systematic LA-ICP-MS study of carbonates in MVT and FCR deposits. We investigated seven MVT deposits in the Rocky Mountains, and five MVT deposits in the Kootenay Arc. None of the post-Archean Australian shale (PAAS)-normalized REE profiles show light REE (LREE) depletion and strong negative Ce anomalies character

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