87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171
Analyses of 87Sr/86Sr in foraminifera and sedimentological observations suggest that the Chicxulub impact was not the trigger for slumps or a hiatus within the Maastrichtian section recovered at Ocean Drilling Program Sites 1049, 1050, and 1052 (subtropical western North Atlantic). The slumps and hi...
Main Authors: | , , |
---|---|
Format: | Other/Unknown Material |
Language: | English |
Published: |
PANGAEA
2003
|
Subjects: | |
Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.713693 https://doi.org/10.1594/PANGAEA.713693 |
id |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.713693 |
---|---|
record_format |
openpolar |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.713693 2024-09-15T18:22:25+00:00 87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 MacLeod, Kenneth G Fullagar, Paul D Huber, Brian T MEDIAN LATITUDE: 30.064493 * MEDIAN LONGITUDE: -76.324627 * SOUTH-BOUND LATITUDE: 29.951300 * WEST-BOUND LONGITUDE: -76.626800 * NORTH-BOUND LATITUDE: 30.142270 * EAST-BOUND LONGITUDE: -76.112110 * DATE/TIME START: 1997-01-16T00:30:00 * DATE/TIME END: 1997-02-08T19:30:00 2003 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.713693 https://doi.org/10.1594/PANGAEA.713693 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.713693 https://doi.org/10.1594/PANGAEA.713693 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: MacLeod, Kenneth G; Fullagar, Paul D; Huber, Brian T (2003): 87Sr/86Sr test of the degree of impact-induced slope failure in the Maastrichtian of the western North Atlantic. Geology, 31(4), 311-314, https://doi.org/10.1130/0091-7613(2003)031%3C0311:SSTOTD%3E2.0.CO;2 171-1049C 171-1050C 171-1052E Blake Nose North Atlantic Ocean DRILL Drilling/drill rig Joides Resolution Leg171B Ocean Drilling Program ODP dataset publication series 2003 ftpangaea https://doi.org/10.1594/PANGAEA.71369310.1130/0091-7613(2003)031%3C0311:SSTOTD%3E2.0.CO;2 2024-07-24T02:31:42Z Analyses of 87Sr/86Sr in foraminifera and sedimentological observations suggest that the Chicxulub impact was not the trigger for slumps or a hiatus within the Maastrichtian section recovered at Ocean Drilling Program Sites 1049, 1050, and 1052 (subtropical western North Atlantic). The slumps and hiatus occur within a sequence dominated by pelagic chalk. The 87Sr/86Sr measurements show a general increase through the Maastrichtian at each site, but suggest chronostratigraphic gaps on the order of 10 Myr across the slumps. Some of the slumps have burrowed upper surfaces and are composed of material that is older and coarser grained than the bounding chalks. Pelagic deposition punctuated by gravity flows easily explains the Maastrichtian record on Blake Nose, whereas an impact-based explanation for slumping is difficult to reconcile with sedimentological and geochemical observations. Other/Unknown Material North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-76.626800,-76.112110,30.142270,29.951300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
171-1049C 171-1050C 171-1052E Blake Nose North Atlantic Ocean DRILL Drilling/drill rig Joides Resolution Leg171B Ocean Drilling Program ODP |
spellingShingle |
171-1049C 171-1050C 171-1052E Blake Nose North Atlantic Ocean DRILL Drilling/drill rig Joides Resolution Leg171B Ocean Drilling Program ODP MacLeod, Kenneth G Fullagar, Paul D Huber, Brian T 87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 |
topic_facet |
171-1049C 171-1050C 171-1052E Blake Nose North Atlantic Ocean DRILL Drilling/drill rig Joides Resolution Leg171B Ocean Drilling Program ODP |
description |
Analyses of 87Sr/86Sr in foraminifera and sedimentological observations suggest that the Chicxulub impact was not the trigger for slumps or a hiatus within the Maastrichtian section recovered at Ocean Drilling Program Sites 1049, 1050, and 1052 (subtropical western North Atlantic). The slumps and hiatus occur within a sequence dominated by pelagic chalk. The 87Sr/86Sr measurements show a general increase through the Maastrichtian at each site, but suggest chronostratigraphic gaps on the order of 10 Myr across the slumps. Some of the slumps have burrowed upper surfaces and are composed of material that is older and coarser grained than the bounding chalks. Pelagic deposition punctuated by gravity flows easily explains the Maastrichtian record on Blake Nose, whereas an impact-based explanation for slumping is difficult to reconcile with sedimentological and geochemical observations. |
format |
Other/Unknown Material |
author |
MacLeod, Kenneth G Fullagar, Paul D Huber, Brian T |
author_facet |
MacLeod, Kenneth G Fullagar, Paul D Huber, Brian T |
author_sort |
MacLeod, Kenneth G |
title |
87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 |
title_short |
87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 |
title_full |
87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 |
title_fullStr |
87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 |
title_full_unstemmed |
87Sr/86Sr results for the Maastrichtian samples from ODP Leg 171 |
title_sort |
87sr/86sr results for the maastrichtian samples from odp leg 171 |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.713693 https://doi.org/10.1594/PANGAEA.713693 |
op_coverage |
MEDIAN LATITUDE: 30.064493 * MEDIAN LONGITUDE: -76.324627 * SOUTH-BOUND LATITUDE: 29.951300 * WEST-BOUND LONGITUDE: -76.626800 * NORTH-BOUND LATITUDE: 30.142270 * EAST-BOUND LONGITUDE: -76.112110 * DATE/TIME START: 1997-01-16T00:30:00 * DATE/TIME END: 1997-02-08T19:30:00 |
long_lat |
ENVELOPE(-76.626800,-76.112110,30.142270,29.951300) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: MacLeod, Kenneth G; Fullagar, Paul D; Huber, Brian T (2003): 87Sr/86Sr test of the degree of impact-induced slope failure in the Maastrichtian of the western North Atlantic. Geology, 31(4), 311-314, https://doi.org/10.1130/0091-7613(2003)031%3C0311:SSTOTD%3E2.0.CO;2 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.713693 https://doi.org/10.1594/PANGAEA.713693 |
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.71369310.1130/0091-7613(2003)031%3C0311:SSTOTD%3E2.0.CO;2 |
_version_ |
1810462206448369664 |