Time series of δ<sup>26</sup>Mg variability in precipitation of north‐west Germany

Riechelmann, Sylvia; Spötl, Christoph; Immenhauser, Adrian

doi:10.1002/dep2.171

The Depositional Record

2021

DOI: 10.1002/dep2.171

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Time series of δ²⁶Mg variability in precipitation of north‐west Germany

Sylvia Riechelmann

Christoph Spötl

Adrian Immenhauser

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Cited by 4 publications

References 58 publications

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Environmental relevance monitoring and assessment of ochreous precipitates, hydrochemistry and water sources from abandoned coal mine drainage

Tran,

Riechelmann,

Banning

et al. 2024

Environ Monit Assess

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This study investigated the mineralogical and chemical characteristics of ochreous precipitates and mine water samples from abandoned Upper Carboniferous hard coal mines in an extensive former mining area in western Germany. Mine water characteristics have been monitored and assessed using a multi-methodological approach. Thirteen mine water discharge locations were sampled for hydrochemical analysis, with a total of 46 water samples seasonally collected in the whole study area for stable isotopic analyses. Mineralogical composition of 13 ochreous precipitates was identified by a combination of powder X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and field emission scanning electron microscopy (FE-SEM/EDS). Results showed that abandoned mine drainage was characterized by circumneutral pH, Eh values ranging from 163 to 269 mV, relatively low concentrations of Fe and Mn, and was dominated by HCO3− > SO42− > Cl− > NO3− and Na+ > Ca2+ > Mg2+ > K+. Goethite and ferrihydrite were the dominant precipitated Fe minerals, with traces of quartz, dolomite, and clay minerals. Some metal and metalloid elements (Mn, Al, Si, and Ti) were found in the ochreous sediments. The role of bacteria in the formation of secondary minerals was assessed with the detection of Leptothrix ochracea. The δ18O and δ2H values of mine water plotted on and close to the GMWL and LMWLs indicated local derivation from meteoric water and represented the annual mean precipitation isotopic composition. Results might help to develop strategies for the management of water resources, contaminated mine water, and public health.

show abstract

Environmental relevance monitoring and assessment of ochreous precipitates, hydrochemistry and water sources from abandoned coal mine drainage

Tran,

Riechelmann,

Banning

et al. 2024

Environ Monit Assess

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show abstract

Composition characteristics of magnesium isotopes in groundwater and their application prospects in water cycle processes

Chen,

Wang,

2024

Environ Earth Sci

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No biological effect on magnesium isotope fractionation during stromatolite growth

Hohl

Viehmann

et al. 2023

Geochimica et Cosmochimica Acta

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Time series of δ²⁶Mg variability in precipitation of north‐west Germany

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 4 publications

References 58 publications

Environmental relevance monitoring and assessment of ochreous precipitates, hydrochemistry and water sources from abandoned coal mine drainage

Environmental relevance monitoring and assessment of ochreous precipitates, hydrochemistry and water sources from abandoned coal mine drainage

Composition characteristics of magnesium isotopes in groundwater and their application prospects in water cycle processes

No biological effect on magnesium isotope fractionation during stromatolite growth

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Time series of δ26Mg variability in precipitation of north‐west Germany

Abstract: This is an open access article under the terms of the Creat ive Commo ns Attri bution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 4 publications

References 58 publications

Environmental relevance monitoring and assessment of ochreous precipitates, hydrochemistry and water sources from abandoned coal mine drainage

Environmental relevance monitoring and assessment of ochreous precipitates, hydrochemistry and water sources from abandoned coal mine drainage

Composition characteristics of magnesium isotopes in groundwater and their application prospects in water cycle processes

No biological effect on magnesium isotope fractionation during stromatolite growth

Contact Info

Product

Resources

About

Time series of δ²⁶Mg variability in precipitation of north‐west Germany