Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ...
Massive discharges of freshwater from the glacial lake Missoula to the northeast Pacific Ocean are thought to have sculpted the Channeled Scablands of eastern Washington and debouched via the Columbia River near 46°N. The dynamics and timing of these events and their impact on northeast Pacific circ...
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ftdatacite:10.1594/pangaea.722593 2024-09-15T18:12:27+00:00 Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... Lopes, C Mix, Alan C 2009 application/zip https://dx.doi.org/10.1594/pangaea.722593 https://doi.pangaea.de/10.1594/PANGAEA.722593 en eng PANGAEA ftp://rock.geosociety.org/pub/reposit/2009/2009018.pdf https://dx.doi.org/10.1130/g25025a.1 ftp://rock.geosociety.org/pub/reposit/2009/2009018.pdf Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Drilling/drill rig Leg167 Joides Resolution Ocean Drilling Program ODP article Collection Supplementary Publication Series of Datasets 2009 ftdatacite https://doi.org/10.1594/pangaea.72259310.1130/g25025a.1 2024-08-01T10:55:41Z Massive discharges of freshwater from the glacial lake Missoula to the northeast Pacific Ocean are thought to have sculpted the Channeled Scablands of eastern Washington and debouched via the Columbia River near 46°N. The dynamics and timing of these events and their impact on northeast Pacific circulation remain uncertain. Here we date marine records of anomalous freshwater inputs to the ocean based on freshwater diatoms, oxygen isotopes in foraminifera, and radiocarbon data. Low-salinity plumes from the Columbia River reduced sea-surface salinities by as much as 6 psu (practical salinity units) more than 400 km away between 16 and 31 cal (calendar) ka B.P. Anomalously high abundances of freshwater diatoms in marine sediments from the region precede generally accepted dates for the existence of glacial Lake Missoula, implying that large flooding or freshwater routing events were common during the advance of the Cordilleran Ice Sheet and that such events require multiple sources. ... : Supplement to: Lopes, C; Mix, Alan C (2009): Pleistocene megafloods in the northeast Pacific. Geology, 37(1), 79-82 ... Article in Journal/Newspaper Ice Sheet DataCite |
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Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg167 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg167 Joides Resolution Ocean Drilling Program ODP Lopes, C Mix, Alan C Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... |
topic_facet |
Drilling/drill rig Leg167 Joides Resolution Ocean Drilling Program ODP |
description |
Massive discharges of freshwater from the glacial lake Missoula to the northeast Pacific Ocean are thought to have sculpted the Channeled Scablands of eastern Washington and debouched via the Columbia River near 46°N. The dynamics and timing of these events and their impact on northeast Pacific circulation remain uncertain. Here we date marine records of anomalous freshwater inputs to the ocean based on freshwater diatoms, oxygen isotopes in foraminifera, and radiocarbon data. Low-salinity plumes from the Columbia River reduced sea-surface salinities by as much as 6 psu (practical salinity units) more than 400 km away between 16 and 31 cal (calendar) ka B.P. Anomalously high abundances of freshwater diatoms in marine sediments from the region precede generally accepted dates for the existence of glacial Lake Missoula, implying that large flooding or freshwater routing events were common during the advance of the Cordilleran Ice Sheet and that such events require multiple sources. ... : Supplement to: Lopes, C; Mix, Alan C (2009): Pleistocene megafloods in the northeast Pacific. Geology, 37(1), 79-82 ... |
format |
Article in Journal/Newspaper |
author |
Lopes, C Mix, Alan C |
author_facet |
Lopes, C Mix, Alan C |
author_sort |
Lopes, C |
title |
Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... |
title_short |
Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... |
title_full |
Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... |
title_fullStr |
Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... |
title_full_unstemmed |
Radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from ODP Holes 167-1019C and 167-1019D ... |
title_sort |
radiocarbon data, oxygen isotopic composition in foraminifera, freshwater diatoms data, and salinity estimations from odp holes 167-1019c and 167-1019d ... |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.722593 https://doi.pangaea.de/10.1594/PANGAEA.722593 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
ftp://rock.geosociety.org/pub/reposit/2009/2009018.pdf https://dx.doi.org/10.1130/g25025a.1 ftp://rock.geosociety.org/pub/reposit/2009/2009018.pdf |
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.72259310.1130/g25025a.1 |
_version_ |
1810450033378590720 |