Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ...
Sediments recovered at lower bathyal ODP Site 1049 on Blake Nose (Northwestern Atlantic) offer an opportunity to study environmental changes at the Cretaceous/Paleogene (K/P) boundary relatively close to the Chicxulub impact structure on the Yucatan peninsula, Mexico. In Hole 1049C, the boundary is...
Main Authors: | , |
---|---|
Format: | Dataset |
Language: | English |
Published: |
PANGAEA
2004
|
Subjects: | |
Online Access: | https://dx.doi.org/10.1594/pangaea.695112 https://doi.pangaea.de/10.1594/PANGAEA.695112 |
id |
ftdatacite:10.1594/pangaea.695112 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.1594/pangaea.695112 2024-03-31T07:54:37+00:00 Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... Alegret, Laia Thomas, Ellen 2004 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.695112 https://doi.pangaea.de/10.1594/PANGAEA.695112 en eng PANGAEA https://dx.doi.org/10.1016/j.palaeo.2004.02.028 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 DEPTH, sediment/rock Sample code/label Alabamina midwayensis Alabamina spp. Alabamina wilcoxensis Allomorphina sp. Allomorphina velascoensis Ammodiscus sp. Anomalinoides acuta Anomalinoides affinis Anomalinoides ammonoides Anomalinoides rubiginosus Anomalinoides spp. Aragonia velascoensis Arenobulimina truncata Astacolus spp. Bifarina spp. Bolivinoides delicatulus Bolivinoides draco Bulimina paleocenica Bulimina kugleri Bulimina midwayensis Bulimina spp. Bulimina thanetensis Bulimina trinitatensis Bulimina velascoensis Buliminella beaumonti Buliminella grata Buliminella sp. Cibicidoides dayi Cibicidoides ekblomi Cibicidoides hyphalus Cibicidoides proprius Cibicidoides spp. Cibicidoides velascoensis Cibicidoides welleri Clavulinoides amorpha Clavulinoides spp. Clavulinoides trilatera Coryphostoma decurrens Coryphostoma incrassata Coryphostoma spp. Coryphostomella sp. Dorothia bulletta Dorothia spp. Ellipsodimorphina spp. Eouvigerina sp. Eouvigerina subsculptura Fissurina spp. Frondicularia sp. dataset Dataset Supplementary Dataset 2004 ftdatacite https://doi.org/10.1594/pangaea.69511210.1016/j.palaeo.2004.02.028 2024-03-04T14:13:28Z Sediments recovered at lower bathyal ODP Site 1049 on Blake Nose (Northwestern Atlantic) offer an opportunity to study environmental changes at the Cretaceous/Paleogene (K/P) boundary relatively close to the Chicxulub impact structure on the Yucatan peninsula, Mexico. In Hole 1049C, the boundary is located at the base of a 9-cm-thick layer with abundant spherules, considered to be impact ejecta. Uppermost Maastrichtian oozes below, and lowermost Danian pelagic oozes above the spherulebed contain well-preserved bathyal benthic foraminifera. The spherule-bed itself, in contrast, contains a mixture of shallow (neritic) and deeper (bathyal) species, and specimens vary strongly in preservation. This assemblage was probably formed by reworking and down-slope transport triggered by the K/P impact. Across the spherule-bed (i.e., the K/P boundary) only ~7% of benthic foraminiferal species became extinct, similar to the low extinction rates of benthic foraminifera worldwide. Quantitative analysis of benthic ... : Supplement to: Alegret, Laia; Thomas, Ellen (2004): Benthic foraminifera and environmental turnover across the Cretaceous/Paleogene boundary at Blake Nose (ODP Hole 1049C, Northwestern Atlantic). Palaeogeography, Palaeoclimatology, Palaeoecology, 208(1-2), 59-83 ... Dataset Northwest Atlantic DataCite Metadata Store (German National Library of Science and Technology) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
DEPTH, sediment/rock Sample code/label Alabamina midwayensis Alabamina spp. Alabamina wilcoxensis Allomorphina sp. Allomorphina velascoensis Ammodiscus sp. Anomalinoides acuta Anomalinoides affinis Anomalinoides ammonoides Anomalinoides rubiginosus Anomalinoides spp. Aragonia velascoensis Arenobulimina truncata Astacolus spp. Bifarina spp. Bolivinoides delicatulus Bolivinoides draco Bulimina paleocenica Bulimina kugleri Bulimina midwayensis Bulimina spp. Bulimina thanetensis Bulimina trinitatensis Bulimina velascoensis Buliminella beaumonti Buliminella grata Buliminella sp. Cibicidoides dayi Cibicidoides ekblomi Cibicidoides hyphalus Cibicidoides proprius Cibicidoides spp. Cibicidoides velascoensis Cibicidoides welleri Clavulinoides amorpha Clavulinoides spp. Clavulinoides trilatera Coryphostoma decurrens Coryphostoma incrassata Coryphostoma spp. Coryphostomella sp. Dorothia bulletta Dorothia spp. Ellipsodimorphina spp. Eouvigerina sp. Eouvigerina subsculptura Fissurina spp. Frondicularia sp. |
spellingShingle |
DEPTH, sediment/rock Sample code/label Alabamina midwayensis Alabamina spp. Alabamina wilcoxensis Allomorphina sp. Allomorphina velascoensis Ammodiscus sp. Anomalinoides acuta Anomalinoides affinis Anomalinoides ammonoides Anomalinoides rubiginosus Anomalinoides spp. Aragonia velascoensis Arenobulimina truncata Astacolus spp. Bifarina spp. Bolivinoides delicatulus Bolivinoides draco Bulimina paleocenica Bulimina kugleri Bulimina midwayensis Bulimina spp. Bulimina thanetensis Bulimina trinitatensis Bulimina velascoensis Buliminella beaumonti Buliminella grata Buliminella sp. Cibicidoides dayi Cibicidoides ekblomi Cibicidoides hyphalus Cibicidoides proprius Cibicidoides spp. Cibicidoides velascoensis Cibicidoides welleri Clavulinoides amorpha Clavulinoides spp. Clavulinoides trilatera Coryphostoma decurrens Coryphostoma incrassata Coryphostoma spp. Coryphostomella sp. Dorothia bulletta Dorothia spp. Ellipsodimorphina spp. Eouvigerina sp. Eouvigerina subsculptura Fissurina spp. Frondicularia sp. Alegret, Laia Thomas, Ellen Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... |
topic_facet |
DEPTH, sediment/rock Sample code/label Alabamina midwayensis Alabamina spp. Alabamina wilcoxensis Allomorphina sp. Allomorphina velascoensis Ammodiscus sp. Anomalinoides acuta Anomalinoides affinis Anomalinoides ammonoides Anomalinoides rubiginosus Anomalinoides spp. Aragonia velascoensis Arenobulimina truncata Astacolus spp. Bifarina spp. Bolivinoides delicatulus Bolivinoides draco Bulimina paleocenica Bulimina kugleri Bulimina midwayensis Bulimina spp. Bulimina thanetensis Bulimina trinitatensis Bulimina velascoensis Buliminella beaumonti Buliminella grata Buliminella sp. Cibicidoides dayi Cibicidoides ekblomi Cibicidoides hyphalus Cibicidoides proprius Cibicidoides spp. Cibicidoides velascoensis Cibicidoides welleri Clavulinoides amorpha Clavulinoides spp. Clavulinoides trilatera Coryphostoma decurrens Coryphostoma incrassata Coryphostoma spp. Coryphostomella sp. Dorothia bulletta Dorothia spp. Ellipsodimorphina spp. Eouvigerina sp. Eouvigerina subsculptura Fissurina spp. Frondicularia sp. |
description |
Sediments recovered at lower bathyal ODP Site 1049 on Blake Nose (Northwestern Atlantic) offer an opportunity to study environmental changes at the Cretaceous/Paleogene (K/P) boundary relatively close to the Chicxulub impact structure on the Yucatan peninsula, Mexico. In Hole 1049C, the boundary is located at the base of a 9-cm-thick layer with abundant spherules, considered to be impact ejecta. Uppermost Maastrichtian oozes below, and lowermost Danian pelagic oozes above the spherulebed contain well-preserved bathyal benthic foraminifera. The spherule-bed itself, in contrast, contains a mixture of shallow (neritic) and deeper (bathyal) species, and specimens vary strongly in preservation. This assemblage was probably formed by reworking and down-slope transport triggered by the K/P impact. Across the spherule-bed (i.e., the K/P boundary) only ~7% of benthic foraminiferal species became extinct, similar to the low extinction rates of benthic foraminifera worldwide. Quantitative analysis of benthic ... : Supplement to: Alegret, Laia; Thomas, Ellen (2004): Benthic foraminifera and environmental turnover across the Cretaceous/Paleogene boundary at Blake Nose (ODP Hole 1049C, Northwestern Atlantic). Palaeogeography, Palaeoclimatology, Palaeoecology, 208(1-2), 59-83 ... |
format |
Dataset |
author |
Alegret, Laia Thomas, Ellen |
author_facet |
Alegret, Laia Thomas, Ellen |
author_sort |
Alegret, Laia |
title |
Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... |
title_short |
Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... |
title_full |
Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... |
title_fullStr |
Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... |
title_full_unstemmed |
Benthic foraminiferal abundances at the Cretaceous/Paleogene boundary of ODP Hole 117-1049C at Blake Nose, Northwest Atlantic (Appendix A) ... |
title_sort |
benthic foraminiferal abundances at the cretaceous/paleogene boundary of odp hole 117-1049c at blake nose, northwest atlantic (appendix a) ... |
publisher |
PANGAEA |
publishDate |
2004 |
url |
https://dx.doi.org/10.1594/pangaea.695112 https://doi.pangaea.de/10.1594/PANGAEA.695112 |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_relation |
https://dx.doi.org/10.1016/j.palaeo.2004.02.028 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.69511210.1016/j.palaeo.2004.02.028 |
_version_ |
1795035607910580224 |