A case-study of complex gas–water–rock–pollutants interactions in shallow groundwater: Šalek Valley (Slovenia)

Giammanco, Salvatore; Justin, Barbara; Špeh, Natalija; Veder, Marta

doi:10.1007/s00254-008-1283-3

Cited by 1 publication

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References 12 publications

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“…To date, Giammanco et al [50] investigated the interactions between gas-water-rock in shallow aquifers in the Šaleška valley and used multivariate PCA to determine different geochemical processes affecting groundwater quality. Later, Kanduč et al [40] performed a geochemical, isotopic characterization of surface waters and deep groundwater in aquifers dewatering Pliocene and Triassic strata.…”

Section: Characteristics Of the Velenje Basin And Groundwater From Prmentioning

confidence: 99%

The effect of geochemical processes on groundwater in the Velenje coal basin, Slovenia: insights from mineralogy, trace elements and isotopes signatures

et al. 2019

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This study investigated the mineralogical and isotopic composition of groundwater and precipitation to identify and constrain geochemical processes within stacked Pliocene and Triassic aquifers in the Velenje coal basin. Scanning electron microscopy combined with energy-dispersive X-ray spectroscopic analysis revealed that suspended matter in the Pliocene aquifer consists of feldspars and quartz, while dolomite, calcite and feldspars are present in the aquifer dewatering Triassic strata. The concentrations of trace elements in Triassic and Pliocene aquifers range from highest to lowest Zn > Fe > Ni > Al > Ba > Mn > B>Li > Mo > As with the majority of trace element concentrations below international drinking water health guidelines. Multivariate principal component analysis indicated that concentrations of Mn, Ba, Eu, Cs, Y, Li and T, pH, conductivity and dissolved oxygen in samples were the best chemical parameter for distinguishing the two aquifers. A significant positive correlation (p < 0.05) was found between Ni, Mn, Co, Zn, As and Mo. Groundwater in the Pliocene aquifer likely has an external source of carbon based on the δ 13 C CO2 values (− 12.3 to − 3.6‰). The groundwater also has detectable levels of dissolved methane with isotopic values (− 77.7 to − 51.4‰ δ 13 C CH4 ; − 247 to − 162‰ δ 2 H CH4) consistent with microbial methanogenesis. The groundwater in the Triassic aquifer has tritium values (up to 4.1 TU 3 H) characteristic of modern recharge (< 50 years), while the lack of detectable 3 H (0 TU) in the Pliocene aquifer is consistent with longer residence times.

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Section: Characteristics Of the Velenje Basin And Groundwater From Prmentioning

confidence: 99%

The effect of geochemical processes on groundwater in the Velenje coal basin, Slovenia: insights from mineralogy, trace elements and isotopes signatures

et al. 2019

View full text Add to dashboard Cite

show abstract

A case-study of complex gas–water–rock–pollutants interactions in shallow groundwater: Šalek Valley (Slovenia)

Cited by 1 publication

References 12 publications

The effect of geochemical processes on groundwater in the Velenje coal basin, Slovenia: insights from mineralogy, trace elements and isotopes signatures

The effect of geochemical processes on groundwater in the Velenje coal basin, Slovenia: insights from mineralogy, trace elements and isotopes signatures

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