Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313
Here we present orbitally-resolved records of terrestrial higher plant leaf wax input to the North Atlantic over the last 3.5 Ma, based on the accumulation of long-chain n-alkanes and n-alkanl-1-ols at IODP Site U1313. These lipids are a major component of dust, even in remote ocean areas, and have...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.757951 2023-05-15T15:42:18+02:00 Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 Naafs, Bernhard David A Hefter, Jens Acton, Gary D Haug, Gerald H Martínez‐García, Alfredo Pancost, Richard D Stein, Ruediger MEDIAN LATITUDE: 41.000005 * MEDIAN LONGITUDE: -32.957248 * SOUTH-BOUND LATITUDE: 41.000000 * WEST-BOUND LONGITUDE: -32.957310 * NORTH-BOUND LATITUDE: 41.000022 * EAST-BOUND LONGITUDE: -32.957010 * DATE/TIME START: 2004-03-28T00:00:00 * DATE/TIME END: 2004-04-02T00:00:00 2012-03-03 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.757951 https://doi.org/10.1594/PANGAEA.757951 en eng PANGAEA Naafs, Bernhard David A (2011): Long-term evolution of (millennial-scale) climate variability in the North Atlantic over the last four million years. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 638, 122 pp, https://doi.org/10.2312/BzPM_0638_2011 https://doi.pangaea.de/10.1594/PANGAEA.757951 https://doi.org/10.1594/PANGAEA.757951 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Naafs, Bernhard David A; Hefter, Jens; Acton, Gary D; Haug, Gerald H; Martínez‐García, Alfredo; Pancost, Richard D; Stein, Ruediger (2012): Strengthening of North American dust sources during the late Pliocene (2.7 Ma). Earth and Planetary Science Letters, 317-318, 8-19, https://doi.org/10.1016/j.epsl.2011.11.026 306-U1313 306-U1313A 306-U1313C 306-U1313D COMPCORE Composite Core DRILL Drilling/drill rig Exp306 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution North Atlantic Climate 2 Dataset 2012 ftpangaea https://doi.org/10.1594/PANGAEA.757951 https://doi.org/10.1016/j.epsl.2011.11.026 https://doi.org/10.2312/BzPM_0638_2011 2023-01-20T07:32:05Z Here we present orbitally-resolved records of terrestrial higher plant leaf wax input to the North Atlantic over the last 3.5 Ma, based on the accumulation of long-chain n-alkanes and n-alkanl-1-ols at IODP Site U1313. These lipids are a major component of dust, even in remote ocean areas, and have a predominantly aeolian origin in distal marine sediments. Our results demonstrate that around 2.7 million years ago (Ma), coinciding with the intensification of the Northern Hemisphere glaciation (NHG), the aeolian input of terrestrial material to the North Atlantic increased drastically. Since then, during every glacial the aeolian input of higher plant material was up to 30 times higher than during interglacials. The close correspondence between aeolian input to the North Atlantic and other dust records indicates a globally uniform response of dust sources to Quaternary climate variability, although the amplitude of variation differs among areas. We argue that the increased aeolian input at Site U1313 during glacials is predominantly related to the episodic appearance of continental ice sheets in North America and the associated strengthening of glaciogenic dust sources. Evolutional spectral analyses of the n-alkane records were therefore used to determine the dominant astronomical forcing in North American ice sheet advances. These results demonstrate that during the early Pleistocene North American ice sheet dynamics responded predominantly to variations in obliquity (41 ka), which argues against previous suggestions of precession-related variations in Northern Hemisphere ice sheets during the early Pleistocene. Dataset Berichte zur Polar- und Meeresforschung Ice Sheet North Atlantic Reports on Polar and Marine Research PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-32.957310,-32.957010,41.000022,41.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
306-U1313 306-U1313A 306-U1313C 306-U1313D COMPCORE Composite Core DRILL Drilling/drill rig Exp306 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution North Atlantic Climate 2 |
spellingShingle |
306-U1313 306-U1313A 306-U1313C 306-U1313D COMPCORE Composite Core DRILL Drilling/drill rig Exp306 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution North Atlantic Climate 2 Naafs, Bernhard David A Hefter, Jens Acton, Gary D Haug, Gerald H Martínez‐García, Alfredo Pancost, Richard D Stein, Ruediger Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 |
topic_facet |
306-U1313 306-U1313A 306-U1313C 306-U1313D COMPCORE Composite Core DRILL Drilling/drill rig Exp306 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution North Atlantic Climate 2 |
description |
Here we present orbitally-resolved records of terrestrial higher plant leaf wax input to the North Atlantic over the last 3.5 Ma, based on the accumulation of long-chain n-alkanes and n-alkanl-1-ols at IODP Site U1313. These lipids are a major component of dust, even in remote ocean areas, and have a predominantly aeolian origin in distal marine sediments. Our results demonstrate that around 2.7 million years ago (Ma), coinciding with the intensification of the Northern Hemisphere glaciation (NHG), the aeolian input of terrestrial material to the North Atlantic increased drastically. Since then, during every glacial the aeolian input of higher plant material was up to 30 times higher than during interglacials. The close correspondence between aeolian input to the North Atlantic and other dust records indicates a globally uniform response of dust sources to Quaternary climate variability, although the amplitude of variation differs among areas. We argue that the increased aeolian input at Site U1313 during glacials is predominantly related to the episodic appearance of continental ice sheets in North America and the associated strengthening of glaciogenic dust sources. Evolutional spectral analyses of the n-alkane records were therefore used to determine the dominant astronomical forcing in North American ice sheet advances. These results demonstrate that during the early Pleistocene North American ice sheet dynamics responded predominantly to variations in obliquity (41 ka), which argues against previous suggestions of precession-related variations in Northern Hemisphere ice sheets during the early Pleistocene. |
format |
Dataset |
author |
Naafs, Bernhard David A Hefter, Jens Acton, Gary D Haug, Gerald H Martínez‐García, Alfredo Pancost, Richard D Stein, Ruediger |
author_facet |
Naafs, Bernhard David A Hefter, Jens Acton, Gary D Haug, Gerald H Martínez‐García, Alfredo Pancost, Richard D Stein, Ruediger |
author_sort |
Naafs, Bernhard David A |
title |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 |
title_short |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 |
title_full |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 |
title_fullStr |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 |
title_full_unstemmed |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313 |
title_sort |
alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for iodp site 306-u1313 |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.757951 https://doi.org/10.1594/PANGAEA.757951 |
op_coverage |
MEDIAN LATITUDE: 41.000005 * MEDIAN LONGITUDE: -32.957248 * SOUTH-BOUND LATITUDE: 41.000000 * WEST-BOUND LONGITUDE: -32.957310 * NORTH-BOUND LATITUDE: 41.000022 * EAST-BOUND LONGITUDE: -32.957010 * DATE/TIME START: 2004-03-28T00:00:00 * DATE/TIME END: 2004-04-02T00:00:00 |
long_lat |
ENVELOPE(-32.957310,-32.957010,41.000022,41.000000) |
genre |
Berichte zur Polar- und Meeresforschung Ice Sheet North Atlantic Reports on Polar and Marine Research |
genre_facet |
Berichte zur Polar- und Meeresforschung Ice Sheet North Atlantic Reports on Polar and Marine Research |
op_source |
Supplement to: Naafs, Bernhard David A; Hefter, Jens; Acton, Gary D; Haug, Gerald H; Martínez‐García, Alfredo; Pancost, Richard D; Stein, Ruediger (2012): Strengthening of North American dust sources during the late Pliocene (2.7 Ma). Earth and Planetary Science Letters, 317-318, 8-19, https://doi.org/10.1016/j.epsl.2011.11.026 |
op_relation |
Naafs, Bernhard David A (2011): Long-term evolution of (millennial-scale) climate variability in the North Atlantic over the last four million years. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 638, 122 pp, https://doi.org/10.2312/BzPM_0638_2011 https://doi.pangaea.de/10.1594/PANGAEA.757951 https://doi.org/10.1594/PANGAEA.757951 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.757951 https://doi.org/10.1016/j.epsl.2011.11.026 https://doi.org/10.2312/BzPM_0638_2011 |
_version_ |
1766375493414682624 |