TY  - JOUR
AU  - Premović, Pavle I.
AU  - Stankovic, Maja N.
AU  - Pavlović, Mirjana S.
AU  - Đorđević, Miloš G.
PY  - 2008
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3435
AB  - Geochemical analyses of Zn, Pb and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in the kerogen of the black marl at the Cretaceous - Paleogene boundary Fish Clay at Hojerup were performed. Substantial proportions of the Zn, Pb and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics enriched in Zn, Pb and rare earth elements were transported mainly through fluvial transport into the deposition site of the Fish Clay. Local weathering/leaching of the impact-eject fallout on the land surface and local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing Zn, Ph and rare earths to these humic substances. Apparently, chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by exposed rocks in the coastal areas of eastern Denmark.
T2  - Journal of the Serbian Chemical Society
T1  - Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen
VL  - 73
IS  - 4
SP  - 453
EP  - 461
DO  - 10.2298/JSC0804453P
ER  - 

@article{
author = "Premović, Pavle I. and Stankovic, Maja N. and Pavlović, Mirjana S. and Đorđević, Miloš G.",
year = "2008",
abstract = "Geochemical analyses of Zn, Pb and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in the kerogen of the black marl at the Cretaceous - Paleogene boundary Fish Clay at Hojerup were performed. Substantial proportions of the Zn, Pb and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics enriched in Zn, Pb and rare earth elements were transported mainly through fluvial transport into the deposition site of the Fish Clay. Local weathering/leaching of the impact-eject fallout on the land surface and local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing Zn, Ph and rare earths to these humic substances. Apparently, chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by exposed rocks in the coastal areas of eastern Denmark.",
journal = "Journal of the Serbian Chemical Society",
title = "Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen",
volume = "73",
number = "4",
pages = "453-461",
doi = "10.2298/JSC0804453P"
}

Premović, P. I., Stankovic, M. N., Pavlović, M. S.,& Đorđević, M. G.. (2008). Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen. in Journal of the Serbian Chemical Society, 73(4), 453-461.
https://doi.org/10.2298/JSC0804453P

Premović PI, Stankovic MN, Pavlović MS, Đorđević MG. Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen. in Journal of the Serbian Chemical Society. 2008;73(4):453-461.
doi:10.2298/JSC0804453P .

Premović, Pavle I., Stankovic, Maja N., Pavlović, Mirjana S., Đorđević, Miloš G., "Cretaceous-paleogene boundary fish clay at hojerup (Stevns Klint, Denmark): Zn, Pb and PEE in kerogen" in Journal of the Serbian Chemical Society, 73, no. 4 (2008):453-461,
https://doi.org/10.2298/JSC0804453P . .

TY  - JOUR
AU  - Premović, Pavle I.
AU  - Todorović, Bratislav Ž.
AU  - Pavlović, Mirjana S.
PY  - 2007
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/3232
AB  - Geochemical analyses of trace metals (Ir, Ni, Co, Cr, Zn, Au and Pb) and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in kerogen of the black marl at the Cretaceous-Paleogene boundary Fish Clay at Hojerup have been undertaken. Substantial proportions of the trace metals and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics were transported mainly through fluvial transport into the site of the deposition of the Fish Clay. The local weathering/leaching of the impact-ejecta fallout on the land surface or local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing trace metals and rare earths for these humic substances. Apparently, chondritic Ir, An, Ni, Co, Cr and chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by the rocks exposed in the coastal areas of eastern Denmark.
T2  - Bulletin de La Societe Geologique de France
T1  - Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen
VL  - 178
IS  - 5
SP  - 411
EP  - 421
DO  - 10.2113/gssgfbull.178.5.411
ER  - 

@article{
author = "Premović, Pavle I. and Todorović, Bratislav Ž. and Pavlović, Mirjana S.",
year = "2007",
abstract = "Geochemical analyses of trace metals (Ir, Ni, Co, Cr, Zn, Au and Pb) and rare earth elements (La, Ce, Nd, Sm, Eu, Tb, Yb and Lu) in kerogen of the black marl at the Cretaceous-Paleogene boundary Fish Clay at Hojerup have been undertaken. Substantial proportions of the trace metals and rare earths were probably contained in terrestrial humic substances (the kerogen precursor) arriving at the marine sedimentary site. This is in accord with a previous hypothesis that kerogen is mainly derived from humic acids of an oxic soil in of the adjacent coastal areas of eastern Denmark. It is also suggested that humics were transported mainly through fluvial transport into the site of the deposition of the Fish Clay. The local weathering/leaching of the impact-ejecta fallout on the land surface or local terrestrial rocks by impact-induced? acid surface waters perhaps played an important role in providing trace metals and rare earths for these humic substances. Apparently, chondritic Ir, An, Ni, Co, Cr and chondritic and non-chondritic Zn originated from the impact fallout; Pb and rare earth elements were most likely sourced by the rocks exposed in the coastal areas of eastern Denmark.",
journal = "Bulletin de La Societe Geologique de France",
title = "Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen",
volume = "178",
number = "5",
pages = "411-421",
doi = "10.2113/gssgfbull.178.5.411"
}

Premović, P. I., Todorović, B. Ž.,& Pavlović, M. S.. (2007). Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen. in Bulletin de La Societe Geologique de France, 178(5), 411-421.
https://doi.org/10.2113/gssgfbull.178.5.411

Premović PI, Todorović BŽ, Pavlović MS. Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen. in Bulletin de La Societe Geologique de France. 2007;178(5):411-421.
doi:10.2113/gssgfbull.178.5.411 .

Premović, Pavle I., Todorović, Bratislav Ž., Pavlović, Mirjana S., "Cretaceous-Paleogene boundary Fish Clay at Hojerup (Stevns Klint, Denmark): trace metals in kerogen" in Bulletin de La Societe Geologique de France, 178, no. 5 (2007):411-421,
https://doi.org/10.2113/gssgfbull.178.5.411 . .

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 . .