Cenozoic Biostratigraphy of the North Sea and Labrador Shelf

Gradstein, Felix M.; Kaminski, Michael A.; Berggren, William A.; Kristiansen, I. L.; D'Iorio, Marc A.

doi:10.2307/1485906

Cited by 56 publications

(33 citation statements)

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“…Subsequent studies have further refined the taxonomy and biostratigraphy of Norwegian Sea DWAF Kaminski et al, 1990;Osterman and Spiegler, 1996;Kaminski and Geroch, 1997;Nagy et al, in press;Gradstein and Kaminski, 1997). Quantitative studies of biostratigraphic data from 33 North Sea and Norwegian Sea exploration wells have yielded a refined biostratigraphic zonation of the area using DWAF and other microfossils (Gradstein et al, 1988;Gradstein et al, 1992Gradstein et al, , 1994Gradstein and Bäckström, 1996).…”

Section: Introductionmentioning

confidence: 99%

Oligocene deep-water agglutinated foraminifers at Site 985, Norwegian Basin, southern Norwegian Sea

Kaminski¹,

Austin²

1999

Proceedings of the Ocean Drilling Program, 162 Scientific Results

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The stratigraphic distribution of deep-water agglutinated foraminifers was examined using 50 samples from Ocean Drilling Program (ODP) Hole 985A, drilled on the gentle slope of the Iceland Plateau in the Norwegian Basin. A total of 40 species and generic groupings was determined in this study. Three stratigraphically meaningful assemblages are recognized in Hole 985A: a basal assemblage with coarsely agglutinated forms (Cores 162-985A-62X through 50X), a Spirosigmoilinella compressa assemblage (Cores 162-985A-49X through 40X), and a sparse assemblage with pyritized radiolarians in the uppermost part of the studied interval (Cores 162-985A-39X through 32X). The whole succession from the base of Hole 985A to Core 162-985A-32X is here assigned to the Dorothia siegliei-Rotaliatina bulimoides Zone of Oligocene age. The stratigraphic ranges of several species extended into younger strata compared with biostratigraphic records from the Vøring Slope (ODP Hole 643A) and from an exploration well on the Vøring Plateau.Taxonomic differences between the foraminiferal records of the Norwegian Sea and the deep Labrador Sea provide evidence for faunal isolation of the deep Norwegian basin during the Oligocene. This isolation is attributed to limited marine connections across the Greenland-Scotland Ridge, resulting in Norwegian Sea deep water that was corrosive and poorly ventilated. Foraminiferal evidence suggests that Norwegian Sea deep water was poorly oxygenated during the Oligocene.

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Section: Introductionmentioning

confidence: 99%

Oligocene deep-water agglutinated foraminifers at Site 985, Norwegian Basin, southern Norwegian Sea

Kaminski¹,

Austin²

1999

Proceedings of the Ocean Drilling Program, 162 Scientific Results

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“…The Eocene foraminiferal record is known from ODP Site 643 on the Vøring slope (Kaminski et al, 1990). The Cenozoic biostratigraphic record (mostly Paleocene to Miocene) of the North Sea and Labrador Sea was established by Gradstein et al (1994). The stratigraphic record of agglutinated foraminifers in the Norwegian Sea area is continuous from the early Paleocene to the late Miocene, and with well over a hundred taxa reported from the area, this group provides good potential for stratigraphic correlation.…”

Section: Agglutinated Benthic Foraminifersmentioning

confidence: 92%

Methods

2006

Proceedings of the IODP 302

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“…(1967), Bratu (1975, and Sãndulescu et al (1987) in the Ro ma nian Carpathians, and by Geroch and Nowak (1984) in the Pol ish Carpathians. Gradstein et al (1994) ex tended the range of the R. amplectens Zone into the late Eocene for the North Sea and Lab ra dor Shelf. This spe cies was ob served in all sam ples stud ied, with the high est pro por tion in sam ple 24 (11%).…”

Section: Palaeoecologymentioning

confidence: 95%

“…The Karrerulina spp. acmes were men tioned at dif fer ent strati graphic in ter vals: Gradstein et al (1994) and Kaminski et al (1996) re ported it from the up per part of the Lower Eocene; B¹k (2004) and Bindiu and Filipescu (2011) from the Lower Eocene, just above the Glomospira acme; while Kaminski (2005) from the lower part of the Mid dle Eocene. In the Ro ma nian East ern Carpathians, Bratu (1975) men tioned a peak of Spiroplectammina spectabilis in the Bisericani For ma tion, which is an equiv a lent of the Plopu For ma tion.…”

Section: Palaeoecologymentioning

confidence: 99%

“…In the Ro ma nian East ern Carpathians, Bratu (1975) men tioned a peak of Spiroplectammina spectabilis in the Bisericani For ma tion, which is an equiv a lent of the Plopu For ma tion. This taxon was men tioned to form acmes just above the Cre taceous/Paleogene bound ary in Gubbio, south ern Spain, and in the equa to rial At lan tic Kaminski, 1996, Kuhnt et al, 1998) in the Paleocene de pos its from the Cen tral North Sea basin and Lab ra dor Shelf (Gradstein et al, 1994). This al most monospecific as sem blage has been re ported from Late Eocene de pos its from At lan tic and west ern Tethyan re gions (Kaminski et al, 1989;Kaminski, 2005).…”

Section: Palaeoecologymentioning

confidence: 99%

See 1 more Smart Citation

The mid/late Eocene transition in the Eastern Carpathians (Romania) based on foraminifera and calcareous nannofossil assemblages

Bindiu

Filipescu

Bălc

et al. 2015

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Foraminiferal and cal car e ous nannofossil as sem blages from the East ern Carpathians (north ern part of the Tarcãu Nappe, Ro ma nia) were doc u mented and cor re lated in or der to re con struct the palaeonvironmental set tings and pro vide a biostratigraphic frame work of the Plopu For ma tion. The ben thic foraminiferal as sem blages are dom i nated by flysch-type agglu ti nated taxa, sug gest ing a bathyal palaeodepth with fre quent os cil la tions of the car bon com pen sa tion depth. The ag glu tinated foraminifera morphogroup anal y ses sug gest dif fer ent lev els of or ganic mat ter in flux and ox y gen a tion. Both the foraminifera and cal car e ous nannofossil as sem blages sug gest a shift be tween the warm Mid dle Eocene to the cooler Late Eocene cli mate. Biostratigraphic data based on cal car e ous nannofossils (NP15-NP19/NNTe8-NNTe12 biozones) helped to es tab lish the age of the for ma tion. Four as sem blages of ben thic ag glu ti nated foraminifera (Psammosiphonella cylindrica-No thia excelsa; Paratrochamminoides spp.-Trochamminoides spp.; Karrerulina spp.-Reticulophragmium amplectens; Spiroplectammina spectabilis) cor re lated with cal car e ous nannofossil bioevents sup ported the place ment of the Middle to Late Eocene tran si tion within the Plopu For ma tion.

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Cenozoic Biostratigraphy of the North Sea and Labrador Shelf

Cited by 56 publications

References 0 publications

Oligocene deep-water agglutinated foraminifers at Site 985, Norwegian Basin, southern Norwegian Sea

Oligocene deep-water agglutinated foraminifers at Site 985, Norwegian Basin, southern Norwegian Sea

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The mid/late Eocene transition in the Eastern Carpathians (Romania) based on foraminifera and calcareous nannofossil assemblages

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