Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor

The mineral composition, pedological characteristics and fractionation of selected chemical elements in the soil of Maribor were studied. The mineral composition reflects geological factors, especially the presence of igneous and metamorphic rocks in the surroundings of Maribor and in the Drava Ri...

Full description

Bibliographic Details
Main Authors: Martin GABERŠEK, Helena GRČMAN, Mateja GOSAR
Format: Article
Language:English
Published: Geological Survey of Slovenia 2020-12-01
Series:Geologija
Subjects:
Online Access:http://www.geologija-revija.si/dokument.aspx?id=1389
_version_ 1797945393336549376
author Martin GABERŠEK
Helena GRČMAN
Mateja GOSAR
author_facet Martin GABERŠEK
Helena GRČMAN
Mateja GOSAR
author_sort Martin GABERŠEK
collection DOAJ
description The mineral composition, pedological characteristics and fractionation of selected chemical elements in the soil of Maribor were studied. The mineral composition reflects geological factors, especially the presence of igneous and metamorphic rocks in the surroundings of Maribor and in the Drava River catchment. Quartz prevails, followed by plagioclases, muscovite/illite, chlorite and dolomite. Potassium feldspar, amphiboles and calcite are also present in some samples. Relatively high pH values (6.9–7.4), high contents of plant-available phosphorous (13.5–185 mg/100 g of soil) and potassium in some samples reflect the anthropogenic influence on the pedological characteristics. The medians of the organic matter and carbonate contents are 8 % and 6.1 %, respectively. The majority of the samples belong to the sandy loam texture class, followed by loam class. Previous chemical analyses showed high contents of some potentially toxic elements (PTEs), especially Cu, Pb and Zn. We determined the fractionation of As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb and Zn using a sequential extraction procedure. All PTEs, except Mn, are mostly bound to organic matter and residual fraction soluble in aqua regia, meaning that they are relatively strongly bound to soil components. Arsenic, Co, Cr and Ni are particularly strongly bound. The contents in the first and second stage, which represent the most easily exchangeable fractions of PTEs, are negligible. The results indicate that the contents of studied PTEs in the soil of Maribor do not pose an environmental threat.
first_indexed 2024-04-10T20:54:28Z
format Article
id doaj.art-48397ad537da4f62881a8a3b28fe16b6
institution Directory Open Access Journal
issn 0016-7789
1854-620X
language English
last_indexed 2024-04-10T20:54:28Z
publishDate 2020-12-01
publisher Geological Survey of Slovenia
record_format Article
series Geologija
spelling doaj.art-48397ad537da4f62881a8a3b28fe16b62023-01-23T08:10:13ZengGeological Survey of SloveniaGeologija0016-77891854-620X2020-12-0163217719110.5474/geologija.2020.015Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of MariborMartin GABERŠEKHelena GRČMANMateja GOSARThe mineral composition, pedological characteristics and fractionation of selected chemical elements in the soil of Maribor were studied. The mineral composition reflects geological factors, especially the presence of igneous and metamorphic rocks in the surroundings of Maribor and in the Drava River catchment. Quartz prevails, followed by plagioclases, muscovite/illite, chlorite and dolomite. Potassium feldspar, amphiboles and calcite are also present in some samples. Relatively high pH values (6.9–7.4), high contents of plant-available phosphorous (13.5–185 mg/100 g of soil) and potassium in some samples reflect the anthropogenic influence on the pedological characteristics. The medians of the organic matter and carbonate contents are 8 % and 6.1 %, respectively. The majority of the samples belong to the sandy loam texture class, followed by loam class. Previous chemical analyses showed high contents of some potentially toxic elements (PTEs), especially Cu, Pb and Zn. We determined the fractionation of As, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb and Zn using a sequential extraction procedure. All PTEs, except Mn, are mostly bound to organic matter and residual fraction soluble in aqua regia, meaning that they are relatively strongly bound to soil components. Arsenic, Co, Cr and Ni are particularly strongly bound. The contents in the first and second stage, which represent the most easily exchangeable fractions of PTEs, are negligible. The results indicate that the contents of studied PTEs in the soil of Maribor do not pose an environmental threat.http://www.geologija-revija.si/dokument.aspx?id=1389soil of urban areasx-ray powder diffractionsequential extraction procedurecopperleadzinc
spellingShingle Martin GABERŠEK
Helena GRČMAN
Mateja GOSAR
Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
Geologija
soil of urban areas
x-ray powder diffraction
sequential extraction procedure
copper
lead
zinc
title Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
title_full Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
title_fullStr Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
title_full_unstemmed Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
title_short Mineral composition, pedological characteristics and fractionation of selected chemical elements in soil of Maribor
title_sort mineral composition pedological characteristics and fractionation of selected chemical elements in soil of maribor
topic soil of urban areas
x-ray powder diffraction
sequential extraction procedure
copper
lead
zinc
url http://www.geologija-revija.si/dokument.aspx?id=1389
work_keys_str_mv AT martingabersek mineralcompositionpedologicalcharacteristicsandfractionationofselectedchemicalelementsinsoilofmaribor
AT helenagrcman mineralcompositionpedologicalcharacteristicsandfractionationofselectedchemicalelementsinsoilofmaribor
AT matejagosar mineralcompositionpedologicalcharacteristicsandfractionationofselectedchemicalelementsinsoilofmaribor