(Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738
In low and middle latitudes, the Cretaceous/Tertiary boundary is marked by a sudden and pronounced decrease in d13C values of near-surface-water carbonates and a reduction in the surface-to-bottom d13C gradient. These isotopic data have been interpreted as evidence of a decline in surface-water prod...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.717726 2024-09-15T17:40:23+00:00 (Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 Barrera, Enriqueta C Keller, Gerta LATITUDE: -62.709000 * LONGITUDE: 82.787800 * DATE/TIME START: 1988-01-10T00:00:00 * DATE/TIME END: 1988-01-17T00:00:00 * MINIMUM DEPTH, sediment/rock: 372.640 m * MAXIMUM DEPTH, sediment/rock: 380.300 m 1994 text/tab-separated-values, 366 data points https://doi.pangaea.de/10.1594/PANGAEA.717726 https://doi.org/10.1594/PANGAEA.717726 en eng PANGAEA Barrera, Enriqueta C; Keller, Gerta (1994): Productivity across the Cretaceous/Tertiary boundary in high latitudes. Geological Society of America Bulletin, 106(10), 1254-1266, https://doi.org/10.1130/0016-7606(1994)106%3C1254:PATCTB%3E2.3.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.717726 https://doi.org/10.1594/PANGAEA.717726 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Department of Geological and Geophysical Sciences, Princeton University 119-738 Alabamina creta δ13C δ18O Chiloguembelina waiparaensis COMPCORE Composite Core DEPTH sediment/rock DSDP/ODP/IODP sample designation Gavelinella beccariiformis Heterohelix globulosa Indian Ocean Joides Resolution Leg119 Mass spectrometer Finnigan MAT 251 Neoeponides lunata Ocean Drilling Program ODP Planktic foraminifera zone Sample code/label Subbotina pseudobulloides carbonate dataset 1994 ftpangaea https://doi.org/10.1594/PANGAEA.71772610.1130/0016-7606(1994)106%3C1254:PATCTB%3E2.3.CO;2 2024-07-24T02:31:30Z In low and middle latitudes, the Cretaceous/Tertiary boundary is marked by a sudden and pronounced decrease in d13C values of near-surface-water carbonates and a reduction in the surface-to-bottom d13C gradient. These isotopic data have been interpreted as evidence of a decline in surface-water productivity that was responsible for the extinction of many planktic foraminiferal species and other marine organisms at or near the K/T boundary. We present planktic and benthic foraminiferal isotopic data from two almost biostratigraphically complete sections at Ocean Drilling Program Site 738 in the antarctic Indian Ocean and at Nye Kløv in Denmark. These data suggest that planktic carbonate d13C values in high latitudes may not have decreased dramatically at the K/T boundary; thus, surface-water productivity may not have been reduced as much as in low and middle latitudes. Comparison of the records of Site 738 with those of ODP Sites 690 and 750 indicates a pronounced decline in d13C values of planktic and benthic foraminifera and fine-fraction/bulk carbonate ~200 000 yr after the K/T boundary. This reflects a regional shift in the carbon isotopic composition of oceanic total dissolved carbon (TDC) and correlates with a similar change in benthic foraminiferal d13C values at mid- and low-latitude Deep Sea Drilling Project Sites 527 and 577. This oceanographic event was followed by the ecosystem's global recovery ~500 000 yr after the K/T boundary. These data suggest that the environmental effects of the K/T boundary may have been less severe in the high-latitude oceans than in tropical and subtropical regions. Dataset Antarc* Antarctic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(82.787800,82.787800,-62.709000,-62.709000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
119-738 Alabamina creta δ13C δ18O Chiloguembelina waiparaensis COMPCORE Composite Core DEPTH sediment/rock DSDP/ODP/IODP sample designation Gavelinella beccariiformis Heterohelix globulosa Indian Ocean Joides Resolution Leg119 Mass spectrometer Finnigan MAT 251 Neoeponides lunata Ocean Drilling Program ODP Planktic foraminifera zone Sample code/label Subbotina pseudobulloides carbonate |
spellingShingle |
119-738 Alabamina creta δ13C δ18O Chiloguembelina waiparaensis COMPCORE Composite Core DEPTH sediment/rock DSDP/ODP/IODP sample designation Gavelinella beccariiformis Heterohelix globulosa Indian Ocean Joides Resolution Leg119 Mass spectrometer Finnigan MAT 251 Neoeponides lunata Ocean Drilling Program ODP Planktic foraminifera zone Sample code/label Subbotina pseudobulloides carbonate Barrera, Enriqueta C Keller, Gerta (Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 |
topic_facet |
119-738 Alabamina creta δ13C δ18O Chiloguembelina waiparaensis COMPCORE Composite Core DEPTH sediment/rock DSDP/ODP/IODP sample designation Gavelinella beccariiformis Heterohelix globulosa Indian Ocean Joides Resolution Leg119 Mass spectrometer Finnigan MAT 251 Neoeponides lunata Ocean Drilling Program ODP Planktic foraminifera zone Sample code/label Subbotina pseudobulloides carbonate |
description |
In low and middle latitudes, the Cretaceous/Tertiary boundary is marked by a sudden and pronounced decrease in d13C values of near-surface-water carbonates and a reduction in the surface-to-bottom d13C gradient. These isotopic data have been interpreted as evidence of a decline in surface-water productivity that was responsible for the extinction of many planktic foraminiferal species and other marine organisms at or near the K/T boundary. We present planktic and benthic foraminiferal isotopic data from two almost biostratigraphically complete sections at Ocean Drilling Program Site 738 in the antarctic Indian Ocean and at Nye Kløv in Denmark. These data suggest that planktic carbonate d13C values in high latitudes may not have decreased dramatically at the K/T boundary; thus, surface-water productivity may not have been reduced as much as in low and middle latitudes. Comparison of the records of Site 738 with those of ODP Sites 690 and 750 indicates a pronounced decline in d13C values of planktic and benthic foraminifera and fine-fraction/bulk carbonate ~200 000 yr after the K/T boundary. This reflects a regional shift in the carbon isotopic composition of oceanic total dissolved carbon (TDC) and correlates with a similar change in benthic foraminiferal d13C values at mid- and low-latitude Deep Sea Drilling Project Sites 527 and 577. This oceanographic event was followed by the ecosystem's global recovery ~500 000 yr after the K/T boundary. These data suggest that the environmental effects of the K/T boundary may have been less severe in the high-latitude oceans than in tropical and subtropical regions. |
format |
Dataset |
author |
Barrera, Enriqueta C Keller, Gerta |
author_facet |
Barrera, Enriqueta C Keller, Gerta |
author_sort |
Barrera, Enriqueta C |
title |
(Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 |
title_short |
(Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 |
title_full |
(Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 |
title_fullStr |
(Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 |
title_full_unstemmed |
(Table 1) Oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the Cretaceous/Tertiary boundary at ODP Site 119-738 |
title_sort |
(table 1) oxygen and carbon isotope data of bulk carbonate and foraminiferal species across the cretaceous/tertiary boundary at odp site 119-738 |
publisher |
PANGAEA |
publishDate |
1994 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.717726 https://doi.org/10.1594/PANGAEA.717726 |
op_coverage |
LATITUDE: -62.709000 * LONGITUDE: 82.787800 * DATE/TIME START: 1988-01-10T00:00:00 * DATE/TIME END: 1988-01-17T00:00:00 * MINIMUM DEPTH, sediment/rock: 372.640 m * MAXIMUM DEPTH, sediment/rock: 380.300 m |
long_lat |
ENVELOPE(82.787800,82.787800,-62.709000,-62.709000) |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Department of Geological and Geophysical Sciences, Princeton University |
op_relation |
Barrera, Enriqueta C; Keller, Gerta (1994): Productivity across the Cretaceous/Tertiary boundary in high latitudes. Geological Society of America Bulletin, 106(10), 1254-1266, https://doi.org/10.1130/0016-7606(1994)106%3C1254:PATCTB%3E2.3.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.717726 https://doi.org/10.1594/PANGAEA.717726 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.71772610.1130/0016-7606(1994)106%3C1254:PATCTB%3E2.3.CO;2 |
_version_ |
1810486412328304640 |