Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313, 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
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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ftdatacite:10.1594/pangaea.757951 2023-05-15T16:40:46+02:00 Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313, 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 Naafs, Bernhard David A Hefter, Jens Acton, Gary D Haug, Gerald H Martínez‐García, Alfredo Pancost, Richard D Stein, Ruediger 2012 application/zip https://dx.doi.org/10.1594/pangaea.757951 https://doi.pangaea.de/10.1594/PANGAEA.757951 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.epsl.2011.11.026 https://dx.doi.org/10.2312/bzpm_0638_2011 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core Drilling/drill rig Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Collection article Supplementary Collection of Datasets 2012 ftdatacite 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 2021-11-05T12:55:41Z 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. Article in Journal/Newspaper Ice Sheet North Atlantic DataCite Metadata Store (German National Library of Science and Technology) Haug ENVELOPE(15.188,15.188,67.918,67.918) Martínez ENVELOPE(-62.183,-62.183,-64.650,-64.650) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Drilling/drill rig Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Composite Core Drilling/drill rig Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP 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, 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 |
topic_facet |
Composite Core Drilling/drill rig Exp306 Joides Resolution Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
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 |
Article in Journal/Newspaper |
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, 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 |
title_short |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313, 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 |
title_full |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313, 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 |
title_fullStr |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313, 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 |
title_full_unstemmed |
Alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for IODP Site 306-U1313, 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 |
title_sort |
alkenone accumulation rates, stable carbon isotope record, and sea surface temperature reconstruction for iodp site 306-u1313, 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 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2012 |
url |
https://dx.doi.org/10.1594/pangaea.757951 https://doi.pangaea.de/10.1594/PANGAEA.757951 |
long_lat |
ENVELOPE(15.188,15.188,67.918,67.918) ENVELOPE(-62.183,-62.183,-64.650,-64.650) |
geographic |
Haug Martínez |
geographic_facet |
Haug Martínez |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_relation |
https://dx.doi.org/10.1016/j.epsl.2011.11.026 https://dx.doi.org/10.2312/bzpm_0638_2011 |
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.757951 https://doi.org/10.1016/j.epsl.2011.11.026 https://doi.org/10.2312/bzpm_0638_2011 |
_version_ |
1766031186050678784 |