Stable isotope and trace element stratigraphy across the Cretaceous/Tertiary boundary in Denmark

Michael A. Kaminski; Björn A. Malmgren

doi:10.1080/11035898909453128

Stable isotope and trace element stratigraphy across the Cretaceous/Tertiary boundary in Denmark

Michael A. Kaminski
, Björn A. Malmgren

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

Carbon and oxygen isotope analyses and strontium measurements were made on Cretaceous/Tertiary (K/T) boundary samples (bulk rock, one benthonic foraminiferal species, and one planktonic foraminiferal species) from two Danish localities – Stevns Klint and Kjolby Gaard. Analyses of closely spaced samples across the K/T boundary reveal a large (2%₀) positive oxygen isotope excursion coincident with the iridium anomaly in the Fish Clay, followed by large fluctuations in δ¹⁸O values in the basal Danian. Carbon isotopes show a negative excursion in δ¹³C values across the boundary. The shift toward more negative δ¹³C values begins 0.75 m (10,000 years) below the boundary clay at Kjolby Gaard. At Stevns Klint, lowest δ¹³C values correspond to an interval of low dinoflagellate abundance in the Danian. These δ¹³C patterns are attributed to a decrease in surface-water productivity, which began several thousand years before the K/T boundary event.

Original language	English
Pages (from-to)	305-312
Number of pages	8
Journal	GFF
Volume	111
Issue number	4
DOIs	https://doi.org/10.1080/11035898909453128
State	Published - Dec 1989
Externally published	Yes

Bibliographical note

Funding Information:
Research Centre, Sunbury-on-Thames) for assistance in collecting samples. Danuta Kaminski and Da\id Slauennhitc (both a1 Dalhousie Uni\ersity, Halifax) for technical assistance. Drs. hl.-P. Aubry-Berggren. W.A. Berggren. L. Keigain. G.D. Jones, A.A. Ekdale, and three anonymous re\ iewers read an earlier bersion ofthis manuscript and pro\ided many usc- ful suggestions.Thestudy\\assupported bythesnedish Natural Science Research Council grants G-GU 4076-120 and G-GU 4076-122 to B.A.hl. This is Woods Hole Oceanographic Institution Contribulion no. 5927.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation

Keywords

Carbon isotopes
Cretaceous/tertiary boundary
Danian
Denmark
Foraminifera
Maastrkhtian
Oxygen isotopes
Sr/ca ratio

ASJC Scopus subject areas

Geology
Paleontology

Access to Document

10.1080/11035898909453128

Cite this

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title = "Stable isotope and trace element stratigraphy across the Cretaceous/Tertiary boundary in Denmark",

abstract = "Carbon and oxygen isotope analyses and strontium measurements were made on Cretaceous/Tertiary (K/T) boundary samples (bulk rock, one benthonic foraminiferal species, and one planktonic foraminiferal species) from two Danish localities – Stevns Klint and Kjolby Gaard. Analyses of closely spaced samples across the K/T boundary reveal a large (2\%0) positive oxygen isotope excursion coincident with the iridium anomaly in the Fish Clay, followed by large fluctuations in δ18O values in the basal Danian. Carbon isotopes show a negative excursion in δ13C values across the boundary. The shift toward more negative δ13C values begins 0.75 m (10,000 years) below the boundary clay at Kjolby Gaard. At Stevns Klint, lowest δ13C values correspond to an interval of low dinoflagellate abundance in the Danian. These δ13C patterns are attributed to a decrease in surface-water productivity, which began several thousand years before the K/T boundary event.",

keywords = "Carbon isotopes, Cretaceous/tertiary boundary, Danian, Denmark, Foraminifera, Maastrkhtian, Oxygen isotopes, Sr/ca ratio",

author = "Kaminski, \{Michael A.\} and Malmgren, \{Bj{\"o}rn A.\}",

note = "Funding Information: Research Centre, Sunbury-on-Thames) for assistance in collecting samples. Danuta Kaminski and Da\textbackslash{}id Slauennhitc (both a1 Dalhousie Uni\textbackslash{}ersity, Halifax) for technical assistance. Drs. hl.-P. Aubry-Berggren. W.A. Berggren. L. Keigain. G.D. Jones, A.A. Ekdale, and three anonymous re\textbackslash{} iewers read an earlier bersion ofthis manuscript and pro\textbackslash{}ided many usc- ful suggestions.Thestudy\textbackslash{}\textbackslash{}assupported bythesnedish Natural Science Research Council grants G-GU 4076-120 and G-GU 4076-122 to B.A.hl. This is Woods Hole Oceanographic Institution Contribulion no. 5927.",

year = "1989",

month = dec,

doi = "10.1080/11035898909453128",

language = "English",

volume = "111",

pages = "305--312",

journal = "GFF",

issn = "1103-5897",

publisher = "Taylor and Francis Ltd.",

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T1 - Stable isotope and trace element stratigraphy across the Cretaceous/Tertiary boundary in Denmark

AU - Kaminski, Michael A.

AU - Malmgren, Björn A.

N1 - Funding Information: Research Centre, Sunbury-on-Thames) for assistance in collecting samples. Danuta Kaminski and Da\id Slauennhitc (both a1 Dalhousie Uni\ersity, Halifax) for technical assistance. Drs. hl.-P. Aubry-Berggren. W.A. Berggren. L. Keigain. G.D. Jones, A.A. Ekdale, and three anonymous re\ iewers read an earlier bersion ofthis manuscript and pro\ided many usc- ful suggestions.Thestudy\\assupported bythesnedish Natural Science Research Council grants G-GU 4076-120 and G-GU 4076-122 to B.A.hl. This is Woods Hole Oceanographic Institution Contribulion no. 5927.

PY - 1989/12

Y1 - 1989/12

N2 - Carbon and oxygen isotope analyses and strontium measurements were made on Cretaceous/Tertiary (K/T) boundary samples (bulk rock, one benthonic foraminiferal species, and one planktonic foraminiferal species) from two Danish localities – Stevns Klint and Kjolby Gaard. Analyses of closely spaced samples across the K/T boundary reveal a large (2%0) positive oxygen isotope excursion coincident with the iridium anomaly in the Fish Clay, followed by large fluctuations in δ18O values in the basal Danian. Carbon isotopes show a negative excursion in δ13C values across the boundary. The shift toward more negative δ13C values begins 0.75 m (10,000 years) below the boundary clay at Kjolby Gaard. At Stevns Klint, lowest δ13C values correspond to an interval of low dinoflagellate abundance in the Danian. These δ13C patterns are attributed to a decrease in surface-water productivity, which began several thousand years before the K/T boundary event.

AB - Carbon and oxygen isotope analyses and strontium measurements were made on Cretaceous/Tertiary (K/T) boundary samples (bulk rock, one benthonic foraminiferal species, and one planktonic foraminiferal species) from two Danish localities – Stevns Klint and Kjolby Gaard. Analyses of closely spaced samples across the K/T boundary reveal a large (2%0) positive oxygen isotope excursion coincident with the iridium anomaly in the Fish Clay, followed by large fluctuations in δ18O values in the basal Danian. Carbon isotopes show a negative excursion in δ13C values across the boundary. The shift toward more negative δ13C values begins 0.75 m (10,000 years) below the boundary clay at Kjolby Gaard. At Stevns Klint, lowest δ13C values correspond to an interval of low dinoflagellate abundance in the Danian. These δ13C patterns are attributed to a decrease in surface-water productivity, which began several thousand years before the K/T boundary event.

KW - Carbon isotopes

KW - Cretaceous/tertiary boundary

KW - Danian

KW - Denmark

KW - Foraminifera

KW - Maastrkhtian

KW - Oxygen isotopes

KW - Sr/ca ratio

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DO - 10.1080/11035898909453128

M3 - Article

AN - SCOPUS:0024912653

SN - 1103-5897

VL - 111

SP - 305

EP - 312

JO - GFF

JF - GFF

IS - 4

ER -

Stable isotope and trace element stratigraphy across the Cretaceous/Tertiary boundary in Denmark

Abstract

Bibliographical note

UN SDGs

Keywords

ASJC Scopus subject areas

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