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deoxygenated gas

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Journal Article
Published: 25 March 2013
Quarterly Journal of Engineering Geology and Hydrogeology (2013) 46 (2): 167–177.
... Confined space hypoxia ( Zugibe et al . 1987 ), caused by deoxygenated gas, is well known within the water and sewerage industry and past fatalities have led to increasingly stringent Health and Safety legislation for working in confined conditions underground ( HSE 2009 ). Nevertheless, even with good...
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Journal Article
Journal: GSA Bulletin
Published: 27 November 2018
GSA Bulletin (2019) 131 (5-6): 1017–1030.
... whether a single anoxic, carbon burial event exists within Upper Cretaceous strata above the global OAE 2. New trace metal and Fe speciation records from the Niobrara Formation within the Sweetgrass Arch region in southern Alberta, Canada, highlight that there were several intervals of deoxygenation...
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Image
Distillation flasks used to <b>deoxygenate</b> solutions used in conjunction with ...
Published: 01 June 2014
Fig. 4. Distillation flasks used to deoxygenate solutions used in conjunction with the CALE apparatus. (a) Stirring hot plate; (b) flat bottom 2 L flask; (c) gas diffusion tube for argon flask purge; (d) solution withdrawal tube; (e) to vacuum; (f) pressure relief valve; (g) magnetic stir bar; (h
Image
Distillation flasks used to <b>deoxygenate</b> solutions used in conjunction with ...
Published: 01 June 2014
Fig. 4. Distillation flasks used to deoxygenate solutions used in conjunction with the CALE apparatus. (a) Stirring hot plate; (b) flat bottom 2 L flask; (c) gas diffusion tube for argon flask purge; (d) solution withdrawal tube; (e) to vacuum; (f) pressure relief valve; (g) magnetic stir bar; (h
Image
Distillation flasks used to <b>deoxygenate</b> solutions used in conjunction with ...
Published: 01 June 2014
Fig. 4. Distillation flasks used to deoxygenate solutions used in conjunction with the CALE apparatus. (a) Stirring hot plate; (b) flat bottom 2 L flask; (c) gas diffusion tube for argon flask purge; (d) solution withdrawal tube; (e) to vacuum; (f) pressure relief valve; (g) magnetic stir bar; (h
Image
Distillation flasks used to <b>deoxygenate</b> solutions used in conjunction with ...
Published: 01 June 2014
Fig. 4. Distillation flasks used to deoxygenate solutions used in conjunction with the CALE apparatus. (a) Stirring hot plate; (b) flat bottom 2 L flask; (c) gas diffusion tube for argon flask purge; (d) solution withdrawal tube; (e) to vacuum; (f) pressure relief valve; (g) magnetic stir bar; (h
Image
Distillation flasks used to <b>deoxygenate</b> solutions used in conjunction with ...
Published: 01 June 2014
Fig. 4. Distillation flasks used to deoxygenate solutions used in conjunction with the CALE apparatus. (a) Stirring hot plate; (b) flat bottom 2 L flask; (c) gas diffusion tube for argon flask purge; (d) solution withdrawal tube; (e) to vacuum; (f) pressure relief valve; (g) magnetic stir bar; (h
Journal Article
Published: 01 April 2006
Clays and Clay Minerals (2006) 54 (2): 195–208.
... oneidensis or by pH-buffered sodium dithionite. Each sample was then analyzed by Fourier transform infrared spectroscopy (FTIR). Parallel samples were reoxidized by bubbling O 2 gas through the reduced suspension at room temperature prior to FTIR analysis. Redox states were quantified by chemical analysis...
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Journal Article
Journal: Clay Minerals
Published: 01 June 2014
Clay Minerals (2014) 49 (3): 359–377.
...Fig. 4. Distillation flasks used to deoxygenate solutions used in conjunction with the CALE apparatus. (a) Stirring hot plate; (b) flat bottom 2 L flask; (c) gas diffusion tube for argon flask purge; (d) solution withdrawal tube; (e) to vacuum; (f) pressure relief valve; (g) magnetic stir bar; (h...
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Journal Article
Journal: Paleobiology
Published: 01 February 2019
Paleobiology (2019) 45 (1): 98–113.
... oceanic productivity and deoxygenation and marked by severe turnover in benthic foraminiferal assemblages. Here we provide a stand-alone approach applicable to any dynamic faunal system, perturbation detection analysis (PDA), to recognize and identify community disruption evidenced as either positive...
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Journal Article
Journal: Geology
Published: 01 April 2015
Geology (2015) 43 (4): 307–310.
... of PZE and disrupted biogeochemistry in neritic waters of the Panthalassic Ocean during the end Triassic. Increasing water-column stratification and deoxygenation across the ETE led to PZE in the Early Jurassic, paralleled by a perturbed nitrogen cycle and ecological turnovers among noncalcifying groups...
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Journal Article
Journal: Geology
Published: 01 February 2013
Geology (2013) 41 (2): 167–170.
... that while unfavorable conditions prevailed for aerobiosis in the paleo-Tethys, persistent upwelling of deoxygenated (denitrified) waters occurred in the Sverdrup Basin across the LPE, excluding the prevalence of photic zone euxinia along the northwest margin of Pangea. The Late Permian δ 15 N record from...
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Journal Article
Published: 01 December 1995
Bulletin of Canadian Petroleum Geology (1995) 43 (4): 433–460.
... high productivity along a shallow ramp. The high rates of organic productivity led to the development of an anoxic zone, at times virtually throughout the entire water column, and preservation of organic matter. Periodic deoxygenation of near-surface waters also fostered mass kills of pelagic organisms...
Journal Article
Published: 30 July 2013
Quarterly Journal of Engineering Geology and Hydrogeology (2013) 46 (3): 293–302.
... – 218 . Newman T.G. O’keeffe L.C. Yuan L.F.V. 2010 . Using tunnel boring data to augment the geological model . Proceedings of the ICE, Geotechnical Engineering , 163 , 157 – 166 . Newman T.G. Ghail R.C. Skipper J.A. 2013 . Deoxygenated gas...
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Journal Article
Journal: PALAIOS
Published: 01 December 2014
PALAIOS (2014) 29 (12): 646–651.
... for understanding how modern environmental perturbations, in particular eutrophication and other deoxygenation processes, impact marine ecosystems (e.g., Diaz and Rosenberg 2008 ; Vaquer-Sunyer and Duarte 2008 ). The Late Devonian is punctuated by periods of severe diversity reduction correlated...
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Series: GSA Memoirs
Published: 01 January 2008
DOI: 10.1130/2008.1202(11)
... be maintained for this area (Fig. 4) . Figure 5. Geological map of the Devonian basin based on Larsen (1990a) , showing the areal distribution of lithostratigraphic groups proposed by Olsen and Larsen (1993a) . GA—Gunnar Anderssons Land; CB—Celsius Bjerg. Establishment of the Eastern...
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Journal Article
Journal: Interpretation
Published: 13 February 2019
Interpretation (2019) 7 (2): T293–T308.
... amounts of enyne gas also reflected the main deoxygenation in the thermal simulation environment from 250°C to 300°C (Figure  12 ). The N 2 exhibited very high yields throughout the thermal simulation process (Figure  12 ). The source of N 2 may be proteinaceous materials...
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Journal Article
Journal: Geology
Published: 01 November 2010
Geology (2010) 38 (11): 1019–1022.
... images and drilling data from a large gas hydrate province reveal a recently eroded v-shaped depression. The depression sharply cuts through a relic bottom simulating reflection (BSR) and hydrate-laden sediments. The shape of the relic BSR indicates that the seafloor depression was once a large anticline...
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Journal Article
Published: 08 April 2016
Journal of the Geological Society (2016) 173 (4): 689–700.
...Andrey Bekker; Bryan Krapež; Stefan G. Müller; Juha A. Karhu Abstract It is generally accepted that carbon isotope variations in seawater were muted between c. 2.06 Ga, after the end of the Lomagundi carbon isotope excursion (LCIE), and c. 1.3 Ga. Evidence is presented here that c. 30 myr after...
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Journal Article
Published: 29 May 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2020) 53 (4): 645–654.
... this link, a simple laboratory experiment was initiated during the ground investigation for the Thames Tideway Tunnel ( Newman 2013 ), in which samples of dry Upnor Formation and a gas monitor were placed within a sealed desiccator to measure the extreme rapidity of deoxygenation within samples of dry Upnor...
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