(Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary
An impact-induced osmium (Os) isotope excursion provides a unique means of assessing the completeness of marine Cretaceous-Paleogene (K-Pg) boundary sections, and surmounting challenges associated with constraining the time scale of the Earth system recovery from this extreme perturbation. A model o...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.824896 2024-09-15T18:36:32+00:00 (Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary Ravizza, Gregory E VonderHaar, Denys MEDIAN LATITUDE: -19.898060 * MEDIAN LONGITUDE: 53.762627 * SOUTH-BOUND LATITUDE: -65.160000 * WEST-BOUND LONGITUDE: 1.204800 * NORTH-BOUND LATITUDE: 32.651650 * EAST-BOUND LONGITUDE: 158.506080 * DATE/TIME START: 1987-01-21T07:00:00 * DATE/TIME END: 2003-03-27T21:25:00 * MINIMUM DEPTH, sediment/rock: 214.35 m * MAXIMUM DEPTH, sediment/rock: 261.95 m 2012 text/tab-separated-values, 691 data points https://doi.pangaea.de/10.1594/PANGAEA.824896 https://doi.org/10.1594/PANGAEA.824896 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.824896 https://doi.org/10.1594/PANGAEA.824896 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Ravizza, Gregory E; VonderHaar, Denys (2012): A geochemical clock in earliest Paleogene pelagic carbonates based on the impact-induced Os isotope excursion at the Cretaceous-Paleogene boundary. Paleoceanography, 27(3), PA3219, https://doi.org/10.1029/2012PA002301 113-690C 198-1209C 208-1262B Depth relative sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elevation of event Event label Joides Resolution Latitude of event Leg113 Leg198 Leg208 Longitude of event North Pacific Ocean Ocean Drilling Program ODP Osmium Osmium-187/Osmium-188 error Osmium-187/Osmium-188 ratio Rhenium Rhenium-187/Osmium-188 ratio Sample code/label South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean dataset 2012 ftpangaea https://doi.org/10.1594/PANGAEA.82489610.1029/2012PA002301 2024-07-24T02:31:32Z An impact-induced osmium (Os) isotope excursion provides a unique means of assessing the completeness of marine Cretaceous-Paleogene (K-Pg) boundary sections, and surmounting challenges associated with constraining the time scale of the Earth system recovery from this extreme perturbation. A model of the recovery of seawater187Os/188Os following the impact event allows independent estimates of the time elapsed since the impact, which can be directly compared to time estimates derived from biostratigraphy, magnetostratigraphy and cyclostratigraphy. This approach is tested using data from three deep ocean sites cored by the Ocean Drilling Program (ODP). Data from ODP 1262B (South Atlantic) and ODP 690C (Southern Ocean) display the expected 187Os/188Os minimum very close to the biostratigraphically defined K-Pg boundary and yield Os-based accumulation rate estimates similar to those obtained from magnetostratigraphy and orbital tuning. In contrast, the187Os/188Os minimum in ODP 1209C (Western Pacific) occurs ≈9 cm below the K-Pg boundary. Low Os concentrations throughout the boundary interval and an implausibly rapid recovery to higher, pre-impact187Os/188Os ratios provide strong evidence for a previously unrecognized gap in the K-Pg interval of Site 1209. Results presented here provide strong empirical evidence that Os isotope data are uniquely valuable in assessing the completeness and accumulation rates of earliest Paleogene sediments from the deep sea. They are of broad interest because they have implications for astronomical tuning of the geologic time scale and illustrate that whole ocean geochemical perturbations can provide an alternative to biostratigraphy for correlation and timekeeping during abrupt biotic events. Dataset South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(1.204800,158.506080,32.651650,-65.160000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-690C 198-1209C 208-1262B Depth relative sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elevation of event Event label Joides Resolution Latitude of event Leg113 Leg198 Leg208 Longitude of event North Pacific Ocean Ocean Drilling Program ODP Osmium Osmium-187/Osmium-188 error Osmium-187/Osmium-188 ratio Rhenium Rhenium-187/Osmium-188 ratio Sample code/label South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
spellingShingle |
113-690C 198-1209C 208-1262B Depth relative sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elevation of event Event label Joides Resolution Latitude of event Leg113 Leg198 Leg208 Longitude of event North Pacific Ocean Ocean Drilling Program ODP Osmium Osmium-187/Osmium-188 error Osmium-187/Osmium-188 ratio Rhenium Rhenium-187/Osmium-188 ratio Sample code/label South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean Ravizza, Gregory E VonderHaar, Denys (Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary |
topic_facet |
113-690C 198-1209C 208-1262B Depth relative sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Elevation of event Event label Joides Resolution Latitude of event Leg113 Leg198 Leg208 Longitude of event North Pacific Ocean Ocean Drilling Program ODP Osmium Osmium-187/Osmium-188 error Osmium-187/Osmium-188 ratio Rhenium Rhenium-187/Osmium-188 ratio Sample code/label South Atlantic Ocean Walvis Ridge Southeast Atlantic Ocean |
description |
An impact-induced osmium (Os) isotope excursion provides a unique means of assessing the completeness of marine Cretaceous-Paleogene (K-Pg) boundary sections, and surmounting challenges associated with constraining the time scale of the Earth system recovery from this extreme perturbation. A model of the recovery of seawater187Os/188Os following the impact event allows independent estimates of the time elapsed since the impact, which can be directly compared to time estimates derived from biostratigraphy, magnetostratigraphy and cyclostratigraphy. This approach is tested using data from three deep ocean sites cored by the Ocean Drilling Program (ODP). Data from ODP 1262B (South Atlantic) and ODP 690C (Southern Ocean) display the expected 187Os/188Os minimum very close to the biostratigraphically defined K-Pg boundary and yield Os-based accumulation rate estimates similar to those obtained from magnetostratigraphy and orbital tuning. In contrast, the187Os/188Os minimum in ODP 1209C (Western Pacific) occurs ≈9 cm below the K-Pg boundary. Low Os concentrations throughout the boundary interval and an implausibly rapid recovery to higher, pre-impact187Os/188Os ratios provide strong evidence for a previously unrecognized gap in the K-Pg interval of Site 1209. Results presented here provide strong empirical evidence that Os isotope data are uniquely valuable in assessing the completeness and accumulation rates of earliest Paleogene sediments from the deep sea. They are of broad interest because they have implications for astronomical tuning of the geologic time scale and illustrate that whole ocean geochemical perturbations can provide an alternative to biostratigraphy for correlation and timekeeping during abrupt biotic events. |
format |
Dataset |
author |
Ravizza, Gregory E VonderHaar, Denys |
author_facet |
Ravizza, Gregory E VonderHaar, Denys |
author_sort |
Ravizza, Gregory E |
title |
(Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary |
title_short |
(Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary |
title_full |
(Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary |
title_fullStr |
(Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary |
title_full_unstemmed |
(Table S1) Re-Os concentrations across the Cretaceous-Paleogene boundary |
title_sort |
(table s1) re-os concentrations across the cretaceous-paleogene boundary |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.824896 https://doi.org/10.1594/PANGAEA.824896 |
op_coverage |
MEDIAN LATITUDE: -19.898060 * MEDIAN LONGITUDE: 53.762627 * SOUTH-BOUND LATITUDE: -65.160000 * WEST-BOUND LONGITUDE: 1.204800 * NORTH-BOUND LATITUDE: 32.651650 * EAST-BOUND LONGITUDE: 158.506080 * DATE/TIME START: 1987-01-21T07:00:00 * DATE/TIME END: 2003-03-27T21:25:00 * MINIMUM DEPTH, sediment/rock: 214.35 m * MAXIMUM DEPTH, sediment/rock: 261.95 m |
long_lat |
ENVELOPE(1.204800,158.506080,32.651650,-65.160000) |
genre |
South Atlantic Ocean Southern Ocean |
genre_facet |
South Atlantic Ocean Southern Ocean |
op_source |
Supplement to: Ravizza, Gregory E; VonderHaar, Denys (2012): A geochemical clock in earliest Paleogene pelagic carbonates based on the impact-induced Os isotope excursion at the Cretaceous-Paleogene boundary. Paleoceanography, 27(3), PA3219, https://doi.org/10.1029/2012PA002301 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.824896 https://doi.org/10.1594/PANGAEA.824896 |
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.82489610.1029/2012PA002301 |
_version_ |
1810480204689178624 |