Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ...
Knowledge of the long-term history of the perennial ice is an important issue that has eluded study because the Cenozoic core material needed has been unavailable until the recent Arctic Coring Expedition (ACEX). Detrital Fe oxide mineral grains analyzed by microprobe from the last 14 Ma (164 m) of...
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ftdatacite:10.1594/pangaea.711530 2024-09-15T17:53:49+00:00 Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... Darby, Dennis A 2009 application/zip https://dx.doi.org/10.1594/pangaea.711530 https://doi.pangaea.de/10.1594/PANGAEA.711530 en eng PANGAEA https://dx.doi.org/10.1029/2007pa001479 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Composite Core Exp302 CCGS Captain Molly Kool Vidar Viking Integrated Ocean Drilling Program / International Ocean Discovery Program IODP article Collection Supplementary Publication Series of Datasets 2009 ftdatacite https://doi.org/10.1594/pangaea.71153010.1029/2007pa001479 2024-08-01T10:54:44Z Knowledge of the long-term history of the perennial ice is an important issue that has eluded study because the Cenozoic core material needed has been unavailable until the recent Arctic Coring Expedition (ACEX). Detrital Fe oxide mineral grains analyzed by microprobe from the last 14 Ma (164 m) of the ACEX composite core on the Lomonosov Ridge were matched to circum-Arctic sources with the same mineral and 12-element composition. These precise source determinations and estimates of drift rates were used to determine that these sand grains could not be rafted to the ACEX core site in less than a year. Thus the perennial ice cover has existed since 14 Ma except for the unlikely rapid return to seasonal ice between the average sampling interval of about 0.17 Ma. Both North America and Russia contributed significant Fe grains to the ACEX core during the last 14 Ma. ... : Supplement to: Darby, Dennis A (2008): Arctic perennial ice cover over the last 14 million years. Paleoceanography, 23, PA1S07 ... Article in Journal/Newspaper Arctic Ocean Lomonosov Ridge DataCite |
institution |
Open Polar |
collection |
DataCite |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Exp302 CCGS Captain Molly Kool Vidar Viking Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Composite Core Exp302 CCGS Captain Molly Kool Vidar Viking Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Darby, Dennis A Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... |
topic_facet |
Composite Core Exp302 CCGS Captain Molly Kool Vidar Viking Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
Knowledge of the long-term history of the perennial ice is an important issue that has eluded study because the Cenozoic core material needed has been unavailable until the recent Arctic Coring Expedition (ACEX). Detrital Fe oxide mineral grains analyzed by microprobe from the last 14 Ma (164 m) of the ACEX composite core on the Lomonosov Ridge were matched to circum-Arctic sources with the same mineral and 12-element composition. These precise source determinations and estimates of drift rates were used to determine that these sand grains could not be rafted to the ACEX core site in less than a year. Thus the perennial ice cover has existed since 14 Ma except for the unlikely rapid return to seasonal ice between the average sampling interval of about 0.17 Ma. Both North America and Russia contributed significant Fe grains to the ACEX core during the last 14 Ma. ... : Supplement to: Darby, Dennis A (2008): Arctic perennial ice cover over the last 14 million years. Paleoceanography, 23, PA1S07 ... |
format |
Article in Journal/Newspaper |
author |
Darby, Dennis A |
author_facet |
Darby, Dennis A |
author_sort |
Darby, Dennis A |
title |
Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... |
title_short |
Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... |
title_full |
Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... |
title_fullStr |
Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... |
title_full_unstemmed |
Drift distances, times and primary grain sources of the Arctic Ocean, Exp302 (ACEX) ... |
title_sort |
drift distances, times and primary grain sources of the arctic ocean, exp302 (acex) ... |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://dx.doi.org/10.1594/pangaea.711530 https://doi.pangaea.de/10.1594/PANGAEA.711530 |
genre |
Arctic Ocean Lomonosov Ridge |
genre_facet |
Arctic Ocean Lomonosov Ridge |
op_relation |
https://dx.doi.org/10.1029/2007pa001479 |
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.71153010.1029/2007pa001479 |
_version_ |
1810429913052741632 |