TY  - JOUR
AU  - Premović, Pavle I.
AU  - Todorović, Bratislav Ž.
AU  - Nikolic, Nikola D.
AU  - Pavlović, Mirjana S.
AU  - Dordevic, Dragan M.
AU  - Dulanovic, Dejan T.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3087
AB  - The Cretaceus-Tertiary (KT) boundary at Stevns Klint (the Hojerup succession), Fiskeler, consists of a thin red clay layer overlain by a thick one of black marl. These two layers are made up mainly from cheto-smectite and biogenic calcite. The black marl shows an enhanced concentration of Ni (655 ppm) within its smectite fraction. Additionally, its carbonate fraction also shows an enhanced concentration of Ni (245 ppm). It is reasoned that these enrichments represent a sudden and rapid input of high amounts of Ni into the late Cretaccus seawater at Stevns Klint. The ultimate source of Ni in both the carbonate and smectite fractions of the black marl was probably impact fallout, produced by the KT asteroidal impact, deposited on the nearby soil and 1 ached by the (acid) surface waters. The geochemistry of the Ni supports the hypothesis that the smectite of this marl most likely has a local (marine or terrestrial) provenance and was probably redeposited, after its formation, from the original site to its present location at the KT boundary.
T2  - Journal of the Serbian Chemical Society
T1  - Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl
VL  - 71
IS  - 6
SP  - 639
EP  - 659
DO  - 10.2298/JSC0606639P
ER  - 

@article{
author = "Premović, Pavle I. and Todorović, Bratislav Ž. and Nikolic, Nikola D. and Pavlović, Mirjana S. and Dordevic, Dragan M. and Dulanovic, Dejan T.",
year = "2006",
abstract = "The Cretaceus-Tertiary (KT) boundary at Stevns Klint (the Hojerup succession), Fiskeler, consists of a thin red clay layer overlain by a thick one of black marl. These two layers are made up mainly from cheto-smectite and biogenic calcite. The black marl shows an enhanced concentration of Ni (655 ppm) within its smectite fraction. Additionally, its carbonate fraction also shows an enhanced concentration of Ni (245 ppm). It is reasoned that these enrichments represent a sudden and rapid input of high amounts of Ni into the late Cretaccus seawater at Stevns Klint. The ultimate source of Ni in both the carbonate and smectite fractions of the black marl was probably impact fallout, produced by the KT asteroidal impact, deposited on the nearby soil and 1 ached by the (acid) surface waters. The geochemistry of the Ni supports the hypothesis that the smectite of this marl most likely has a local (marine or terrestrial) provenance and was probably redeposited, after its formation, from the original site to its present location at the KT boundary.",
journal = "Journal of the Serbian Chemical Society",
title = "Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl",
volume = "71",
number = "6",
pages = "639-659",
doi = "10.2298/JSC0606639P"
}

Premović, P. I., Todorović, B. Ž., Nikolic, N. D., Pavlović, M. S., Dordevic, D. M.,& Dulanovic, D. T.. (2006). Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl. in Journal of the Serbian Chemical Society, 71(6), 639-659.
https://doi.org/10.2298/JSC0606639P

Premović PI, Todorović BŽ, Nikolic ND, Pavlović MS, Dordevic DM, Dulanovic DT. Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl. in Journal of the Serbian Chemical Society. 2006;71(6):639-659.
doi:10.2298/JSC0606639P .

Premović, Pavle I., Todorović, Bratislav Ž., Nikolic, Nikola D., Pavlović, Mirjana S., Dordevic, Dragan M., Dulanovic, Dejan T., "Geochemistry of Ni in the Cretaceous-Tertiary succession Fiskeler (Fish Clay) at Stevns Klint (Denmark): cheto-smectite of the black marl" in Journal of the Serbian Chemical Society, 71, no. 6 (2006):639-659,
https://doi.org/10.2298/JSC0606639P . .

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Krsmanovic, Milena M.
AU  - Todorović, Bratislav Ž.
AU  - Pavlović, Mirjana S.
AU  - Nikolic, Nikola D.
AU  - Đorđević, Dragan M.
PY  - 2006
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3126
AB  - Geochemical analyses of trace metals (Ir, Ni and Zn) in the kerogen of the black marl of the Cretaceous-Tertiary boundary succession (Fish Clay) at Stevns Klint (Hojerup Church) were undertaken. The data for this kerogen were in accordance with a previous hypothesis(1) that this (insoluble) geoorganic polymer was derived from humic substances (mainly humic acids) of a nearshore soil. Substantial proportions of Ir, Ni and Zn within the kerogen structure were probably contained in these substances arriving at the sedimentary site. It is proposed that these humics were probably transported by acid surface waters (induced by the KT asteroid impact) into the shallow marine basin of Stevns Klint. It is also suggested that local leaching/weathering of the asteroidal impact fallout oil the land near these waters played an important role in providing Ir, Ni and Zn for these substances. Apparently, Ir, Ni and Zn of the kerogen were created by the chondritic component of the impact ejecta fallout.
T2  - Journal of the Serbian Chemical Society
T1  - Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen
VL  - 71
IS  - 7
SP  - 793
EP  - 806
DO  - 10.2298/JSC0607793P
ER  - 

@article{
author = "Premović, Pavle I. and Krsmanovic, Milena M. and Todorović, Bratislav Ž. and Pavlović, Mirjana S. and Nikolic, Nikola D. and Đorđević, Dragan M.",
year = "2006",
abstract = "Geochemical analyses of trace metals (Ir, Ni and Zn) in the kerogen of the black marl of the Cretaceous-Tertiary boundary succession (Fish Clay) at Stevns Klint (Hojerup Church) were undertaken. The data for this kerogen were in accordance with a previous hypothesis(1) that this (insoluble) geoorganic polymer was derived from humic substances (mainly humic acids) of a nearshore soil. Substantial proportions of Ir, Ni and Zn within the kerogen structure were probably contained in these substances arriving at the sedimentary site. It is proposed that these humics were probably transported by acid surface waters (induced by the KT asteroid impact) into the shallow marine basin of Stevns Klint. It is also suggested that local leaching/weathering of the asteroidal impact fallout oil the land near these waters played an important role in providing Ir, Ni and Zn for these substances. Apparently, Ir, Ni and Zn of the kerogen were created by the chondritic component of the impact ejecta fallout.",
journal = "Journal of the Serbian Chemical Society",
title = "Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen",
volume = "71",
number = "7",
pages = "793-806",
doi = "10.2298/JSC0607793P"
}

Premović, P. I., Krsmanovic, M. M., Todorović, B. Ž., Pavlović, M. S., Nikolic, N. D.,& Đorđević, D. M.. (2006). Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen. in Journal of the Serbian Chemical Society, 71(7), 793-806.
https://doi.org/10.2298/JSC0607793P

Premović PI, Krsmanovic MM, Todorović BŽ, Pavlović MS, Nikolic ND, Đorđević DM. Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen. in Journal of the Serbian Chemical Society. 2006;71(7):793-806.
doi:10.2298/JSC0607793P .

Premović, Pavle I., Krsmanovic, Milena M., Todorović, Bratislav Ž., Pavlović, Mirjana S., Nikolic, Nikola D., Đorđević, Dragan M., "Geochemistry of the cretaceous-tertiary boundary (Fish clay) at Stevns Klint (Denmark): Ir, Ni and Zn in kerogen" in Journal of the Serbian Chemical Society, 71, no. 7 (2006):793-806,
https://doi.org/10.2298/JSC0607793P . .