Academic literature on the topic 'Soil degassing'

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Journal articles on the topic "Soil degassing"

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Pfanz, Hardy, Frank Saßmannshausen, Christiane Wittmann, Benny Pfanz, and Annika Thomalla. "Mofette Vegetation as an Indicator for Geogenic CO2 Emission: A Case Study on the Banks of the Laacher See Volcano, Vulkaneifel, Germany." Geofluids 2019 (August 8, 2019): 1–12. http://dx.doi.org/10.1155/2019/9589306.

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A geogenic CO2 emitting site (mofette U1) at the banks of the Laacher See, Eifel Mountains, was chosen to study the relationship between heavy postvolcanic soil degassing and vegetation during spring season. To test any interrelation between soil CO2 degassing and vegetation, soil chemism (pH, water content, conductivity, and humus content) and vegetation studies (number of species, plant-soil coverage) were performed. Geogenic soil degassing patterns of carbon dioxide and oxygen were clearly inhomogeneous, resembling soil porosity and distinct permeation channels within the soil. CO2 concentr
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Berberich, Gabriele M., Martin B. Berberich, Aaron M. Ellison, and Christian Wöhler. "Degassing Rhythms and Fluctuations of Geogenic Gases in A Red Wood-Ant Nest and in Soil in The Neuwied Basin (East Eifel Volcanic Field, Germany)." Insects 9, no. 4 (2018): 135. http://dx.doi.org/10.3390/insects9040135.

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Geochemical tracers of crustal fluids (CO2, He, Rn) provide a useful tool for the identification of buried fault structures. We acquired geochemical data during 7-months of continual sampling to identify causal processes underlying correlations between ambient air and degassing patterns of three gases (CO2, He, Rn) in a nest of red wood ants (Formica polyctena; “RWA”) and the soil at Goloring in the Neuwied Basin, a part of the East Eifel Volcanic Field (EEVF). We explored whether temporal relations and degassing rhythms in soil and nest gas concentrations could be indicators of hidden faults
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Kämpf, Horst, Alena Sophie Broge, Pouria Marzban, Masoud Allahbakhshi, and Tobias Nickschick. "Nonvolcanic Carbon Dioxide Emission at Continental Rifts: The Bublak Mofette Area, Western Eger Rift, Czech Republic." Geofluids 2019 (October 30, 2019): 1–19. http://dx.doi.org/10.1155/2019/4852706.

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This study presents the results of gas flux measurements of cold, mantle-derived CO2 release at the Bublák mofette field (BMF), located inside of the N-S directed Počátky Plesná fault zone (PPFZ). The PPFZ is presently seismically active, located in the eastern part of the Cheb Basin, western Eger Rift, Central Europe. The goal of the work was to identify the linkage between tectonics and gas flux. The investigated area has a size of 0,43 km2 in which 1.115 locations have been measured. Besides classical soil CO2 gas flux measurements using the closed chamber method (West Systems), drone-based
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Gagliano, A. L., S. Calabrese, K. Daskalopoulou, et al. "Degassing and Cycling of Mercury at Nisyros Volcano (Greece)." Geofluids 2019 (August 14, 2019): 1–18. http://dx.doi.org/10.1155/2019/4783514.

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Nisyros Island (Greece) is an active volcano hosting a high-enthalpy geothermal system. During June 2013, an extensive survey on Hg concentrations in different matrices (fumarolic fluids, atmosphere, soils, and plants) was carried out at the Lakki Plain, an intracaldera area affected by widespread soil and fumarolic degassing. Concentrations of gaseous elemental mercury (GEM), together with H2S and CO2, were simultaneously measured in both the fumarolic emissions and the atmosphere around them. At the same time, 130 samples of top soils and 31 samples of plants (Cistus creticus and salvifolius
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Elberling, Bo, and Bjarne H. Jakobsen. "Soil solution pH measurements using in-line chambers with tension lysimeters." Canadian Journal of Soil Science 80, no. 2 (2000): 283–88. http://dx.doi.org/10.4141/s99-061.

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During soil water extraction, pH can change as a result of atmospheric gas exchange. The pH change is important for monitoring soil acidification and determination of mineralogic controls on the solution composition. As part of a global change programme in Greenland for monitoring long-term changes in Arctic soil solutions we observed that the pH of extracted soil solutions increased in the order of a half pH unit during traditional sampling and handling of the soil solution. CO2 degassing is often considered the most important factor causing such a pH increase. Thus, traditional as well as in
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Sheppard, M. I., D. H. Thibault, P. A. Smith, and J. L. Hawkins. "Volatilization: a soil degassing coefficient for iodine." Journal of Environmental Radioactivity 25, no. 3 (1994): 189–203. http://dx.doi.org/10.1016/0265-931x(94)90072-8.

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Xu, Junzeng, Qi Wei, Shihong Yang, Linxian Liao, Zhiming Qi, and Weiguang Wang. "Soil degassing during watering: An overlooked soil N2O emission process." Environmental Pollution 242 (November 2018): 257–63. http://dx.doi.org/10.1016/j.envpol.2018.06.103.

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Sheppard, Marsha I., L. L. Ewing, and J. L. Hawkins. "Soil Degassing of Carbon‐14 Dioxide: Rates and Factors." Journal of Environmental Quality 23, no. 3 (1994): 461–68. http://dx.doi.org/10.2134/jeq1994.00472425002300030008x.

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Peiffer, Loïc, Gerardo Carrasco-Núñez, Agnès Mazot, et al. "Soil degassing at the Los Humeros geothermal field (Mexico)." Journal of Volcanology and Geothermal Research 356 (May 2018): 163–74. http://dx.doi.org/10.1016/j.jvolgeores.2018.03.001.

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Yegorchenko, Rostyslav, Andrii Kosenko, and Maksym Kononenko. "DIGITAL MODELING OF DESTRUCTION OF DEGASSING PIPELINES IN UNDERGROUND MINE WORKINGS." NAUKOVYI VISNYK DONETSKOHO NATSIONALNOHO TEKHNICHNOHO UNIVERSYTETU, no. 1(12) (2024): 85–95. http://dx.doi.org/10.31474/2415-7902-2024-1-12-85-95.

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Purpose. The purpose of the work is to simulate the process of corrosion formation on a degassing pipeline using Solid Works and COMSOL Multiphysics 5.6 software products. Methodology. Development of a mathematical model for establishing corrosion zones of a steel degassing gas pipeline and modeling the corrosion process in a mine environment using the SolidWorks and COMSOL Multiphysics 5.6 software package. Results. It has been established that the degassing network of mines is constantly under the influence of mechanical-electrochemical interaction, which manifests itself during longitudinal
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Dissertations / Theses on the topic "Soil degassing"

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Deirmendjian, Loris. "Transfert de carbone le long du continuum végétation-sol-nappe-rivière-atmosphère dans le bassin de la Leyre (Landes de gascogne, SO France)." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0319/document.

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Les systèmes aquatiques continentaux sont des vecteurs majeurs du cycle global du carbone, recevant une quantité importante de carbone qu’ils émettent vers l’atmosphère et exportent aux océans. Nous caractérisons les concentrations et les transferts de toutes les formes carbonées à l’interface eau souterraine-ruisseau-atmosphère, dans un bassin versant de plaine, tempéré, forestier et sablonneux, où l’hydrologie se produit majoritairement au travers du drainage des eaux souterraines. Nous suivons différentes stations couvrant l’ensemble de la variabilité du bassin, depuis les eaux souterraines
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Grassa, F. "Geochemical processes governing the chemistry of groundwater hosted within the Hyblean aquifers." Thesis, 2002. http://hdl.handle.net/2122/416.

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A raingauge network made of six stations was installed in the Hyblean region. Stations were located at different altitudes (from 5 m to 986 m a.s.l.) and along two directions (E-W and SW-NE). Rainwater samples were monthly collected for stable isotope measurements. Spatial distribution of rainwater isotope composition has confirmed the wet air masses move from South-East/South-West toward North. Water balance has highlighted that the annual volume of infiltrating waters is in the range of 1-1.5 *105 m3 Km-2. 82 well waters and 12 spring waters located within the Hyblean Plateau (South-Ester
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Book chapters on the topic "Soil degassing"

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Marini, Luigi, Claudia Principe, and Matteo Lelli. "Soil CO2 Diffuse Degassing and Thermal Energy Release as Indicators of Volcanic Unrest in the Solfatara-Pisciarelli Area." In Advances in Volcanology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-98471-7_10.

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Cartagena, Rafael, Rodolfo Olmos, Dina L. López, et al. "Diffuse soil degassing of carbon dioxide, radon, and mercury at San Miguel volcano, El Salvador." In Natural Hazards in El Salvador. Geological Society of America, 2004. http://dx.doi.org/10.1130/0-8137-2375-2.203.

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Berner, Robert A. "Atmospheric Carbon Dioxide over Phanerozoic Time." In The Phanerozoic Carbon Cycle. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195173338.003.0007.

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In this chapter the methods and results of modeling the long-term carbon cycle are presented in terms of predictions of past levels of atmospheric CO2. The modeling results are then compared with independent determinations of paleo-CO2 by means of a variety of different methods. Results indicate that there is reasonable agreement between methods as to the general trend of CO2 over Phanerozoic time. Values of fluxes in the long-term carbon cycle can be calculated from the fundamental equations for total carbon and 13C mass balance that are stated in the introduction and are repeated here: . . .
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Carlmark, B., and A. Lindvall. "Mercury, a Toxic Metal, and Dental Amalgam Removal." In Geology and Health. Oxford University Press, 2003. http://dx.doi.org/10.1093/oso/9780195162042.003.0016.

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Mercury is an element with unique physical and chemical properties whose deleterious effects on various organ systems have been known for centuries. The metal (Hg°) mercury is the only element liquid at ambient temperatures and has an extremely high vapor pressure. Natural degassing of the earth’s crust by volcanoes and emissions from soils and waters are estimated to contribute on the order of 2700 to 30,000 tons per year (Nriagu 1989, Lindqvist 1991). A second source of mercury is anthropogenic from burning of coal or petroleum. The total input into the atmosphere may be up to 150,000 tons p
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Conference papers on the topic "Soil degassing"

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De Paola, C., R. Di Maio, and E. Piegari. "ERT and SP Measurements for the Characterization of Fault-Controlled Soil CO2 Degassing." In 25th European Meeting of Environmental and Engineering Geophysics. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902390.

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Shyrin, Leonid, and Rostyslav Yehorchenko. "Prediction of the Process of Corrosion Formation of Steel Degasation Pipelines." In International Young Scientists Conference on Materials Science and Surface Engineering. Karpenko Physico-Mechanical Institute of the NAS of Ukraine, 2023. http://dx.doi.org/10.15407/msse2023.175.

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This article examines the results of modeling and research of the corrosion process of underground degassing pipelines in the COMSOL Multiphysics software showed that the high level of corrosion processes of the gas pipeline is the result of the interaction of the metal, which plays the role of an electrode, with groundwater, which plays the role of an electrolyte, while the determining factors of corrosion of the process is the electrical conductivity of the soil and deformation processes in the pipelines.
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Hummel, Martin. "THE EFFECT OF DEGASSING BOREHOLE INTO OLD MINE WORKINGS IN THE QUATERNARY OF METHANE CONTENT IN THE SOIL AIR." In 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING. Stef92 Technology, 2013. http://dx.doi.org/10.5593/sgem2013/ba1.v1/s03.074.

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Reports on the topic "Soil degassing"

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Brydie, Dr James, Dr Alireza Jafari, and Stephanie Trottier. PR-487-143727-R01 Modelling and Simulation of Subsurface Fluid Migration from Small Pipeline Leaks. Pipeline Research Council International, Inc. (PRCI), 2017. http://dx.doi.org/10.55274/r0011025.

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The dispersion and migration behavior of hydrocarbon products leaking at low rates (i.e. 1bbl/day and 10 bbl/day) from a pipeline have been studied using a combination of experimental leakage tests and numerical simulations. The focus of this study was to determine the influence of subsurface engineered boundaries associated with the trench walls, and the presence of a water table, upon the leakage behavior of a range of hydrocarbon products. The project numerically modelled three products including diesel, diluted bitumen (dilbit) and gasoline; which were chosen to span a range of fluid types
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