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Title:Heavy minerals as indicators of source material in soils on carbonates
Authors:ID Čeplak, Barbara (Author)
ID Miler, Miloš (Author)
ID Zupančič, Nina (Author)
ID Jarc, Simona (Author)
Files:.pdf PDF - Presentation file, download (8,60 MB)
MD5: 17A6BBE3B86334CDA78B22C02FB5E396
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo GeoZS - Geological Survey of Slovenia
Abstract:The origin of the soils formed on carbonate rocks remains uncertain, as they are probably of polygenetic origin. Of particular interest are the elevated contents of some trace elements detected in these soils, as they can hardly be attributed to insoluble residues of carbonate rock. The aim of this study was to uncover the relationship between heavy minerals in bedrock and soil and to identify other sources that influence the mineral and chemical composition of soil. We investigated representative samples of soils and dolomite bedrock as well as sandstones and marlstones from the nearby flysch basin as an expected source of the aeolian contribution. XRD and SEM/EDS showed that mineral diversity is higher in soils compared to the dolomites. Heavy minerals found in dolomite insoluble residue include sphalerite, Ti-oxide (probably rutile), zircon, fluorite, pyrite, minerals of REE phosphates and apatite group, interpreted as terrigenous detrital material. The mineral composition of soil heavy fraction is only partly following insoluble residues of bedrock and indicates possible aeolian contribution. Comparison with nearby flysch sandstones and marlstones showed similarities in mineralogical diversity by the presence of chromite and Fe-Cr(Mn) oxides (probably carmichaelite). Other minerals present in soils and flysch layers, such as Ti-oxide (probably rutile), zircon, REE phosphates, and pyrite grains, however, show similarities in mode of occurrence and transport indications. Signs of aeolian transport on the grains detected in soils were further confirmed by SEM/EDS.
Keywords:Phaeozem, Upper Triassic dolomite, flysch layers, trace elements, SEM/EDS
Publication status:Published
Publication version:Version of Record
Publication date:31.10.2023
Year of publishing:2023
Number of pages:str. 1-11
Numbering:vol. 35
PID:20.500.12556/DiRROS-17459 New window
UDC:55
ISSN on article:2352-0094
DOI:10.1016/j.geodrs.2023.e00735 New window
COBISS.SI-ID:172020483 New window
Note:
Publication date in DiRROS:04.01.2024
Views:855
Downloads:237
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ČEPLAK, Barbara, MILER, Miloš, ZUPANČIČ, Nina and JARC, Simona, 2023, Heavy minerals as indicators of source material in soils on carbonates. Geoderma regional [online]. 2023. Vol. 35, p. 1–11. [Accessed 7 April 2025]. DOI 10.1016/j.geodrs.2023.e00735. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=17459
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Record is a part of a journal

Title:Geoderma regional
Publisher:Elsevier
ISSN:2352-0094
COBISS.SI-ID:525571097 New window

Document is financed by a project

Funder:ARRS - Slovenian Research Agency
Project number:P1-0025-2018
Name:Mineralne surovine
Funder:ARRS - Slovenian Research Agency
Project number:P1-0195-2018
Name:Geookolje in geomateriali
Funder:ARRS - Slovenian Research Agency
Project number:P1-0008-2018
Name:Paleontologija in sedimentarna geologija

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License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

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