Upper Campanian-Maastrichtian chronostratigraphy of the Skælskør-1 core, Denmark: correlation at the basinal and global scale and implications for changes in sea-surface temperatures
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Upper Campanian-Maastrichtian chronostratigraphy of the Skælskør-1 core, Denmark : correlation at the basinal and global scale and implications for changes in sea-surface temperatures. / Thibault, Nicolas Rudolph; Anderskouv, Kresten; Bjerager, Morten; Boldreel, Lars Ole; Jelby, Mads Engholm; Stemmerik, Lars; Surlyk, Finn.
I: Lethaia: An International Journal of Palaeontology and Stratigraphy, Bind 48, Nr. 4, 2015, s. 549-560.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Upper Campanian-Maastrichtian chronostratigraphy of the Skælskør-1 core, Denmark
T2 - correlation at the basinal and global scale and implications for changes in sea-surface temperatures
AU - Thibault, Nicolas Rudolph
AU - Anderskouv, Kresten
AU - Bjerager, Morten
AU - Boldreel, Lars Ole
AU - Jelby, Mads Engholm
AU - Stemmerik, Lars
AU - Surlyk, Finn
PY - 2015
Y1 - 2015
N2 - The lithostratigraphy, calcareous nannofossil biostratigraphy, carbon- and oxygen-isotope stratigraphy and gamma-ray profile are presented for the Skælskør-1 core, eastern Denmark. The correlation of carbon isotopes to Gubbio (Italy) and ODP Site 762C (Indian Ocean) provides the chronostratigrahical framework of the core through a tie to magnetostratigraphy. Two new carbon-isotope excursions are defined for the uppermost Maastrichtian of the core and prove useful for long-distance correlation. Twenty stratigraphic tie-points are used for correlation of the upper Campanian-Maastrichtian interval by combining carbon-isotope and gamma-ray variations. Significant dissimilarities in the gamma-ray profiles of the Danish Basin cores preclude the sole use of this tool for basin-scale correlations. Bulk oxygen-isotopes and semi-quantitative abundance changes in the warm-water calcareous nannofossil Watznaueria barnesiae and the cool-water Kamptnerius magnificus highlight the following past changes in sea-surface temperatures (SSTs): relatively warm late Campanian SSTs, cooling across the Campanian-Maastrichtian boundary and through the early Maastrichtian, warming across the early-late Maastrichtian transition, cooling in the late Maastrichtian, intense warming in the latest Maastrichtian chron C29r, followed by a very short episode of cooling immediately before the Cretaceous-Palaeogene boundary. The late Campanian-Maastrichtian evolution in sea water temperatures inferred from the Danish Basin is similar to that delineated at tropical latitude oceanic sites.
AB - The lithostratigraphy, calcareous nannofossil biostratigraphy, carbon- and oxygen-isotope stratigraphy and gamma-ray profile are presented for the Skælskør-1 core, eastern Denmark. The correlation of carbon isotopes to Gubbio (Italy) and ODP Site 762C (Indian Ocean) provides the chronostratigrahical framework of the core through a tie to magnetostratigraphy. Two new carbon-isotope excursions are defined for the uppermost Maastrichtian of the core and prove useful for long-distance correlation. Twenty stratigraphic tie-points are used for correlation of the upper Campanian-Maastrichtian interval by combining carbon-isotope and gamma-ray variations. Significant dissimilarities in the gamma-ray profiles of the Danish Basin cores preclude the sole use of this tool for basin-scale correlations. Bulk oxygen-isotopes and semi-quantitative abundance changes in the warm-water calcareous nannofossil Watznaueria barnesiae and the cool-water Kamptnerius magnificus highlight the following past changes in sea-surface temperatures (SSTs): relatively warm late Campanian SSTs, cooling across the Campanian-Maastrichtian boundary and through the early Maastrichtian, warming across the early-late Maastrichtian transition, cooling in the late Maastrichtian, intense warming in the latest Maastrichtian chron C29r, followed by a very short episode of cooling immediately before the Cretaceous-Palaeogene boundary. The late Campanian-Maastrichtian evolution in sea water temperatures inferred from the Danish Basin is similar to that delineated at tropical latitude oceanic sites.
KW - Calcareous nannofossil biostratigraphy
KW - Carbon-isotope stratigraphy
KW - Danish Basin
KW - Oxygen isotopes
KW - Upper Campanian-Maastrichtian
U2 - 10.1111/let.12128
DO - 10.1111/let.12128
M3 - Journal article
AN - SCOPUS:84941933062
VL - 48
SP - 549
EP - 560
JO - Lethaia: An International Journal of Palaeontology and Stratigraphy
JF - Lethaia: An International Journal of Palaeontology and Stratigraphy
SN - 0024-1164
IS - 4
ER -
ID: 154804051