Vergari, Francesca

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Author's Bibliography

Impact of weathering processes on n-alkane pattern in badlands

Stefanović, Milica; Šajnović, Aleksandra; Kašanin-Grubin, Milica; Vergari, Francesca; Troiani, Francesco; Moreno-de-las-Heras, Mariano; Gallart, Francesc; Desloges, Joseph; Jovančićević, Branimir

(Elsevier, 2023)

TY  - JOUR
AU  - Stefanović, Milica
AU  - Šajnović, Aleksandra
AU  - Kašanin-Grubin, Milica
AU  - Vergari, Francesca
AU  - Troiani, Francesco
AU  - Moreno-de-las-Heras, Mariano
AU  - Gallart, Francesc
AU  - Desloges, Joseph
AU  - Jovančićević, Branimir
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7182
AB  - The aim of this study is to investigate the influence of weathering processes on the distribution of n-alkanes in unweathered and weathered samples of badland material. Organic matter (OM) of both the weathered and unweathered zones in badland environments is derived from the same sources such any differences between the n-alkane pattern of the two zones can be attributed to the impact of weathering processes under different climate conditions. Organic geochemical and mineralogical characterizations were employed to investigate twenty-one samples from weathered badland environments in Italy, Spain, and Canada that originally derive from marine, distal alluvial, and fluvial depositional settings, respectively. According to the distribution of n-alkanes and diterpanes, unweathered samples from Italy have an original mixed aquatic-terrestrial origin of OM, with a variable (low to moderate) contribution of terrestrial plants as precursors, while unweathered samples from Spain predominantly contain OM originating from submerged/floating macrophytes deposited under reducing conditions. Unweathered samples from Canada predominantly consist of terrigenous OM. Intensity of changes in n-alkanes distribution when subjected to weathering depends on the type of precursor biomass and quantity of smectite. Predominantly terrigenous OM under semi-arid conditions shows the highest affinity for adsorption is in contact with smectite surfaces. Mid- and long-chain odd n-alkanes have a tendency to build colloidal particles with polar organic compounds such as fatty acids by strong binding and thus their preservation from degradation is possible.
PB  - Elsevier
T2  - CATENA
T1  - Impact of weathering processes on n-alkane pattern in badlands
VL  - 231
SP  - 107352
DO  - 10.1016/j.catena.2023.107352
ER  - 
@article{
author = "Stefanović, Milica and Šajnović, Aleksandra and Kašanin-Grubin, Milica and Vergari, Francesca and Troiani, Francesco and Moreno-de-las-Heras, Mariano and Gallart, Francesc and Desloges, Joseph and Jovančićević, Branimir",
year = "2023",
abstract = "The aim of this study is to investigate the influence of weathering processes on the distribution of n-alkanes in unweathered and weathered samples of badland material. Organic matter (OM) of both the weathered and unweathered zones in badland environments is derived from the same sources such any differences between the n-alkane pattern of the two zones can be attributed to the impact of weathering processes under different climate conditions. Organic geochemical and mineralogical characterizations were employed to investigate twenty-one samples from weathered badland environments in Italy, Spain, and Canada that originally derive from marine, distal alluvial, and fluvial depositional settings, respectively. According to the distribution of n-alkanes and diterpanes, unweathered samples from Italy have an original mixed aquatic-terrestrial origin of OM, with a variable (low to moderate) contribution of terrestrial plants as precursors, while unweathered samples from Spain predominantly contain OM originating from submerged/floating macrophytes deposited under reducing conditions. Unweathered samples from Canada predominantly consist of terrigenous OM. Intensity of changes in n-alkanes distribution when subjected to weathering depends on the type of precursor biomass and quantity of smectite. Predominantly terrigenous OM under semi-arid conditions shows the highest affinity for adsorption is in contact with smectite surfaces. Mid- and long-chain odd n-alkanes have a tendency to build colloidal particles with polar organic compounds such as fatty acids by strong binding and thus their preservation from degradation is possible.",
publisher = "Elsevier",
journal = "CATENA",
title = "Impact of weathering processes on n-alkane pattern in badlands",
volume = "231",
pages = "107352",
doi = "10.1016/j.catena.2023.107352"
}
Stefanović, M., Šajnović, A., Kašanin-Grubin, M., Vergari, F., Troiani, F., Moreno-de-las-Heras, M., Gallart, F., Desloges, J.,& Jovančićević, B.. (2023). Impact of weathering processes on n-alkane pattern in badlands. in CATENA
Elsevier., 231, 107352.
https://doi.org/10.1016/j.catena.2023.107352
Stefanović M, Šajnović A, Kašanin-Grubin M, Vergari F, Troiani F, Moreno-de-las-Heras M, Gallart F, Desloges J, Jovančićević B. Impact of weathering processes on n-alkane pattern in badlands. in CATENA. 2023;231:107352.
doi:10.1016/j.catena.2023.107352 .
Stefanović, Milica, Šajnović, Aleksandra, Kašanin-Grubin, Milica, Vergari, Francesca, Troiani, Francesco, Moreno-de-las-Heras, Mariano, Gallart, Francesc, Desloges, Joseph, Jovančićević, Branimir, "Impact of weathering processes on n-alkane pattern in badlands" in CATENA, 231 (2023):107352,
https://doi.org/10.1016/j.catena.2023.107352 . .

The Role of Lithology: Parent Material Controls on Badland Development

Kašanin-Grubin, Milica; Vergari, Francesca; Troiani, Francesco; Della Seta, Marta

(Elsevier, 2018)

TY  - CHAP
AU  - Kašanin-Grubin, Milica
AU  - Vergari, Francesca
AU  - Troiani, Francesco
AU  - Della Seta, Marta
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5011
AB  - Badlands can develop on bedrock and/or weathered material, the characteristics of which play a key role on hillslope processes in a range of climate conditions. Therefore, fundamental attention should be given to badland materials, the main features of which are grain size, clay mineralogy and physico-chemical characteristics. The typical weathering profile consists of crust, subsurface and unweathered material, but depending on climatic, lithological, topographic and hydrological factors, the properties and appearance of both surface and subsurface materials change over time. Through time, regolith formed on erodible and dispersive bedrock materials tends to stabilize, again as a function of slope and climate conditions because prolonged precipitation can cause decrease in surface strength and runoff and reduce the dispersivity of the surface. Vegetation also has distinct role in stabilizing the clayey sediments due to lowering the dispersivity in the upper horizon of the badland material, even though such stabilization is often not permanent and erosion processes can sometimes reoccur. Finally, all the above cited factors and properties of badland materials play a complex and key role in the development of different geomorphic processes and related landforms.
PB  - Elsevier
T2  - Badlands Dynamics in a Context of Global Change
T1  - The Role of Lithology: Parent Material Controls on Badland Development
SP  - 61
EP  - 109
DO  - 10.1016/B978-0-12-813054-4.00003-4
ER  - 
@inbook{
author = "Kašanin-Grubin, Milica and Vergari, Francesca and Troiani, Francesco and Della Seta, Marta",
year = "2018",
abstract = "Badlands can develop on bedrock and/or weathered material, the characteristics of which play a key role on hillslope processes in a range of climate conditions. Therefore, fundamental attention should be given to badland materials, the main features of which are grain size, clay mineralogy and physico-chemical characteristics. The typical weathering profile consists of crust, subsurface and unweathered material, but depending on climatic, lithological, topographic and hydrological factors, the properties and appearance of both surface and subsurface materials change over time. Through time, regolith formed on erodible and dispersive bedrock materials tends to stabilize, again as a function of slope and climate conditions because prolonged precipitation can cause decrease in surface strength and runoff and reduce the dispersivity of the surface. Vegetation also has distinct role in stabilizing the clayey sediments due to lowering the dispersivity in the upper horizon of the badland material, even though such stabilization is often not permanent and erosion processes can sometimes reoccur. Finally, all the above cited factors and properties of badland materials play a complex and key role in the development of different geomorphic processes and related landforms.",
publisher = "Elsevier",
journal = "Badlands Dynamics in a Context of Global Change",
booktitle = "The Role of Lithology: Parent Material Controls on Badland Development",
pages = "61-109",
doi = "10.1016/B978-0-12-813054-4.00003-4"
}
Kašanin-Grubin, M., Vergari, F., Troiani, F.,& Della Seta, M.. (2018). The Role of Lithology: Parent Material Controls on Badland Development. in Badlands Dynamics in a Context of Global Change
Elsevier., 61-109.
https://doi.org/10.1016/B978-0-12-813054-4.00003-4
Kašanin-Grubin M, Vergari F, Troiani F, Della Seta M. The Role of Lithology: Parent Material Controls on Badland Development. in Badlands Dynamics in a Context of Global Change. 2018;:61-109.
doi:10.1016/B978-0-12-813054-4.00003-4 .
Kašanin-Grubin, Milica, Vergari, Francesca, Troiani, Francesco, Della Seta, Marta, "The Role of Lithology: Parent Material Controls on Badland Development" in Badlands Dynamics in a Context of Global Change (2018):61-109,
https://doi.org/10.1016/B978-0-12-813054-4.00003-4 . .
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