(Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223
A close look at the sedimentology of Heinrich event 4 from the northwest Labrador Sea indicates that an extended ice margin, perhaps greater than before Heinrich events 1 or 2 (H-1 and H-2), existed in the Hudson Strait region pre-Heinrich event 4 (H-4) and, that on the basis of characteristics of t...
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1999
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ftdatacite:10.1594/pangaea.856936 2023-05-15T16:30:23+02:00 (Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 Kirby, Mathew E Andrews, John T 1999 text/tab-separated-values https://dx.doi.org/10.1594/pangaea.856936 https://doi.pangaea.de/10.1594/PANGAEA.856936 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1029/1998pa900019 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Age, dated material Age, dated Age, dated standard deviation Calendar age Calendar age, standard deviation Piston corer Age, 14C AMS Age, 14C milieu/reservoir corrected -450 yr Dataset dataset Supplementary Dataset 1999 ftdatacite https://doi.org/10.1594/pangaea.856936 https://doi.org/10.1029/1998pa900019 2022-02-09T13:17:41Z A close look at the sedimentology of Heinrich event 4 from the northwest Labrador Sea indicates that an extended ice margin, perhaps greater than before Heinrich events 1 or 2 (H-1 and H-2), existed in the Hudson Strait region pre-Heinrich event 4 (H-4) and, that on the basis of characteristics of the sediment unit, Heinrich event-4 was different than Heinrich events 1 or 2 (i.e., larger ice sheet collapse(?), longer duration(?), "dirtier" icebergs(?)). Other data from across the southern and eastern margin of the Laurentide Ice Sheet, as well as Greenland and the North Atlantic, support this interpretation, possibly indicating a relative mid-Wisconsin glacial maximum pre-Heinrich event 4. Many of these data also indicate that Heinrich event 4 (35 ka) resulted in serious climatic and oceanographic reorganizations. We suggest that Heinrich event 4 gutted the Hudson Strait, leaving it devoid of ice for Heinrich event 3. We further hypothesize that Heinrich event 3 did not originate from axial ice transport along the Hudson Strait; thus Heinrich event 3 may be more analogous to the proposed northward advancing ice from Ungava Bay during Heinrich event 0 than to the more typical down-the-strait flow during H-1, H-2, and H-4. Consequently, the climatic and oceanographic impacts resulting from Heinrich events are highly susceptible to the type, origin, and magnitude of ice sheet collapse, something which varied per Heinrich event during the last glacial period. : Dates are from Manley and Jennings (1996). Dataset Greenland Hudson Strait Ice Sheet Labrador Sea North Atlantic Ungava Bay DataCite Metadata Store (German National Library of Science and Technology) Greenland Hudson Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) Ungava Bay ENVELOPE(-67.489,-67.489,59.498,59.498) Jennings ENVELOPE(72.556,72.556,-70.145,-70.145) Mathew ENVELOPE(159.950,159.950,-81.683,-81.683) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Age, dated material Age, dated Age, dated standard deviation Calendar age Calendar age, standard deviation Piston corer Age, 14C AMS Age, 14C milieu/reservoir corrected -450 yr |
spellingShingle |
Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Age, dated material Age, dated Age, dated standard deviation Calendar age Calendar age, standard deviation Piston corer Age, 14C AMS Age, 14C milieu/reservoir corrected -450 yr Kirby, Mathew E Andrews, John T (Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 |
topic_facet |
Event label Latitude of event Longitude of event Elevation of event DEPTH, sediment/rock Depth, top/min Depth, bottom/max Age, dated material Age, dated Age, dated standard deviation Calendar age Calendar age, standard deviation Piston corer Age, 14C AMS Age, 14C milieu/reservoir corrected -450 yr |
description |
A close look at the sedimentology of Heinrich event 4 from the northwest Labrador Sea indicates that an extended ice margin, perhaps greater than before Heinrich events 1 or 2 (H-1 and H-2), existed in the Hudson Strait region pre-Heinrich event 4 (H-4) and, that on the basis of characteristics of the sediment unit, Heinrich event-4 was different than Heinrich events 1 or 2 (i.e., larger ice sheet collapse(?), longer duration(?), "dirtier" icebergs(?)). Other data from across the southern and eastern margin of the Laurentide Ice Sheet, as well as Greenland and the North Atlantic, support this interpretation, possibly indicating a relative mid-Wisconsin glacial maximum pre-Heinrich event 4. Many of these data also indicate that Heinrich event 4 (35 ka) resulted in serious climatic and oceanographic reorganizations. We suggest that Heinrich event 4 gutted the Hudson Strait, leaving it devoid of ice for Heinrich event 3. We further hypothesize that Heinrich event 3 did not originate from axial ice transport along the Hudson Strait; thus Heinrich event 3 may be more analogous to the proposed northward advancing ice from Ungava Bay during Heinrich event 0 than to the more typical down-the-strait flow during H-1, H-2, and H-4. Consequently, the climatic and oceanographic impacts resulting from Heinrich events are highly susceptible to the type, origin, and magnitude of ice sheet collapse, something which varied per Heinrich event during the last glacial period. : Dates are from Manley and Jennings (1996). |
format |
Dataset |
author |
Kirby, Mathew E Andrews, John T |
author_facet |
Kirby, Mathew E Andrews, John T |
author_sort |
Kirby, Mathew E |
title |
(Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 |
title_short |
(Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 |
title_full |
(Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 |
title_fullStr |
(Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 |
title_full_unstemmed |
(Table 1) Age determination of sediment cores of the Labrador Sea, supplement to: Kirby, Mathew E; Andrews, John T (1999): Mid-Wisconsin Laurentide ice sheet growth and decay: Implications for Heinrich events 3 and 4. Paleoceanography, 14(2), 211-223 |
title_sort |
(table 1) age determination of sediment cores of the labrador sea, supplement to: kirby, mathew e; andrews, john t (1999): mid-wisconsin laurentide ice sheet growth and decay: implications for heinrich events 3 and 4. paleoceanography, 14(2), 211-223 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1999 |
url |
https://dx.doi.org/10.1594/pangaea.856936 https://doi.pangaea.de/10.1594/PANGAEA.856936 |
long_lat |
ENVELOPE(-70.000,-70.000,62.000,62.000) ENVELOPE(-67.489,-67.489,59.498,59.498) ENVELOPE(72.556,72.556,-70.145,-70.145) ENVELOPE(159.950,159.950,-81.683,-81.683) |
geographic |
Greenland Hudson Hudson Strait Ungava Bay Jennings Mathew |
geographic_facet |
Greenland Hudson Hudson Strait Ungava Bay Jennings Mathew |
genre |
Greenland Hudson Strait Ice Sheet Labrador Sea North Atlantic Ungava Bay |
genre_facet |
Greenland Hudson Strait Ice Sheet Labrador Sea North Atlantic Ungava Bay |
op_relation |
https://dx.doi.org/10.1029/1998pa900019 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.856936 https://doi.org/10.1029/1998pa900019 |
_version_ |
1766020118312124416 |