Modelling the evolution of water quality in abandoned mines of the Lorraine Iron Basin

Collon, Pauline; Fabriol, Robert; Buès, Michel

doi:10.1016/j.jhydrol.2006.01.005

Cited by 10 publications

(16 citation statements)

References 29 publications

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“…As iron is necessarily released during the hydrothermal leaching of pyrites, iron can precipitate at 150 °C as hematite and goethite (e.g. Collon et al, 2006), which would explain its absence in the hydrothermal fluids (Table 1). In addition, former air pockets in caves are coated by iron-and manganese-rich incrustations (Fig.…”

Section: A Thermochemical Production Of H 2 S At Depthmentioning

confidence: 99%

Epigenic vs. hypogenic speleogenesis governed by H2S/CO2 hydrothermal input and Quaternary icefield dynamics (NE French Pyrenees)

et al. 2021

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Section: A Thermochemical Production Of H 2 S At Depthmentioning

confidence: 99%

Epigenic vs. hypogenic speleogenesis governed by H2S/CO2 hydrothermal input and Quaternary icefield dynamics (NE French Pyrenees)

et al. 2021

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“…Geographic location of the Lorraine iron basin (Collon et al, 2006) In the northern part, mine dewatering ceased in 2005 and water has been discharging from mines since March 2008 at an elevation of 205 m NGF while in the southern part, the mines were closed in 1995 and water began to discharge in October 1998. This iron deposit (10 -65 m thick) dates from the Aalenian (Jurassic).…”

Section: Figmentioning

confidence: 99%

“…In the southern basin, five mineralised levels were mined. According to their composition and their chemical reactivity, three groups were differentiated (Collon et al, 2006): "shelly limestone" (or "crassin"), "marly hanging walls", and "marly intercalations". Hanging-wall rocks of the grey and yellow layers are included in the crassin group.…”

Section: Figmentioning

confidence: 99%

Noxious gas emissions above former coal and iron mines in Lorraine due to the presence of iron sulphides

Lagny

2015

Environ Earth Sci

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International audienceStudies were carried out in the iron and coal basins of Lorraine (North-East of France) which indicated that oxygen-depleted air and carbon dioxide was being emitted into built-up areas related to former mine workings. Investigations were carried out to determine the origin of this gas production indicated that carbon dioxide production could be caused by the oxidation of iron sulphide minerals (pyrite and marcasite) and reaction of sulphuric acid with carbonates minerals to produce carbon dioxide gas. These reactions have produced highly mineralised mine water with circum-neutral pH values and a low content of dissolved metals and metalloids. Through a bibliographic study, similar neutral mine drainage has been observed and assumptions were made on the reactions which could take place. A conceptual model is proposed to explain the gas emissions

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“…Unlike the neighbouring Lorraine Iron Basin where the impact of mine flooding on water quality is studied for water supply concerns (e.g. Collon et al, 2005Collon et al, , 2006Hamm et al, 2008), the great depth (up to 1.5 km) and the favourable local geothermal gradient (around 3.5°C/100 m) in the Lorraine Coal Basin make it a potential resource of low-temperature geothermal energy. Preliminary investigations were carried out by Hamm and Bazargan Sabet (2010), who identified the area of the Merlebach mine, centred around the Vouters 2 mineshaft (Fig.…”

Section: Introductionmentioning

confidence: 99%

3D geomodelling combining implicit surfaces and Voronoi-based remeshing: A case study in the Lorraine Coal Basin (France)

Collon

Steckiewicz-Laurent

Pellerin

et al. 2015

Computers & Geosciences

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International audienceIn this paper we demonstrate how recent geomodelling techniques can be combined and used to build a 3D geological model on a real case study: the former coal mine of Merlebach (France), that is targeted to be exploited for low-temperature geothermal energy production. From geological maps, cross-sections, borehole and mine exploitation data, we build a 3D model in which are identified the rocks and infrastructures having significantly different permeabilities. First, a structural model of the main geological interfaces in our area of interest (2 horizons and 13 faults) is built with classical geomodelling techniques. Then, we propose to model by surfaces the 71 irregularly stacked, very close and very thin, subvertical coal beds. To ease their construction, we use an implicit method which represents 3D surfaces as isovalues of a scalar field defined in a 3D tetrahedral grid of the area. The corresponding triangulated surfaces are remeshed with a recently proposed method based on Voronoi diagrams so that the exploited parts of the coal beds, now filled by sand, can be computed. The 3D surface-based geological model, in which infrastructures can be inserted as piecewise lines, can be volumetrically meshed. It is available for download as supplemental material, as well as a volumetric grid

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Modelling the evolution of water quality in abandoned mines of the Lorraine Iron Basin

Cited by 10 publications

References 29 publications

Epigenic vs. hypogenic speleogenesis governed by H2S/CO2 hydrothermal input and Quaternary icefield dynamics (NE French Pyrenees)

Epigenic vs. hypogenic speleogenesis governed by H2S/CO2 hydrothermal input and Quaternary icefield dynamics (NE French Pyrenees)

Noxious gas emissions above former coal and iron mines in Lorraine due to the presence of iron sulphides

3D geomodelling combining implicit surfaces and Voronoi-based remeshing: A case study in the Lorraine Coal Basin (France)

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