(Appendix A) Paleomagnetic of IODP Site 303-U1305
Integrated Ocean Drilling Program (IODP) Expedition 303 to the North Atlantic in 2004 recovered rapidly deposited deep-sea sediments at IODP Site U1305 on Eirik Drift, located south of Greenland at 3460 m water depth, along the path of the Western Boundary Under Current (WBUC). About 200 m of sedime...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.815883 2023-05-15T13:49:51+02:00 (Appendix A) Paleomagnetic of IODP Site 303-U1305 Mazaud, Alain Channell, James E T Stoner, Joseph S LATITUDE: 57.475150 * LONGITUDE: -48.529710 * MINIMUM DEPTH, sediment/rock: 0.03 m * MAXIMUM DEPTH, sediment/rock: 193.02 m 2012-06-20 text/tab-separated-values, 166270 data points https://doi.pangaea.de/10.1594/PANGAEA.815883 https://doi.org/10.1594/PANGAEA.815883 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.815883 https://doi.org/10.1594/PANGAEA.815883 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Mazaud, Alain; Channell, James E T; Stoner, Joseph S (2012): Relative paleointensity and environmental magnetism since 1.2Ma at IODP site U1305 (Eirik Drift, NW Atlantic). Earth and Planetary Science Letters, 357-358, 137-144, https://doi.org/10.1016/j.epsl.2012.09.037 303-U1305 AGE ARM Susceptibility/susceptibility ratio COMPCORE Composite Core DEPTH sediment/rock Exp303 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution Magnetic susceptibility volume Maximum angular deviation Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Natural remanent magnetization/specific susceptibility ratio North Atlantic Climate 1 Northwest Atlantic NRM Declination Inclination Dataset 2012 ftpangaea https://doi.org/10.1594/PANGAEA.815883 https://doi.org/10.1016/j.epsl.2012.09.037 2023-01-20T09:01:16Z Integrated Ocean Drilling Program (IODP) Expedition 303 to the North Atlantic in 2004 recovered rapidly deposited deep-sea sediments at IODP Site U1305 on Eirik Drift, located south of Greenland at 3460 m water depth, along the path of the Western Boundary Under Current (WBUC). About 200 m of sediment was sampled with u-channels from the composite section, providing a continuous record of paleomagnetic field directions and relative paleointensity (RPI) variations covering the past 1.2 Myr. The age model, based on an oxygen isotope record, is consistent with the fit of the RPI record to a calibrated template, and indicates higher sedimentation rates during interglacials relative to glacial epochs. Magnetite grain-size and concentration proxies indicate higher concentrations of magnetite with larger grain sizes during interglacials. Enhanced interglacial deposition can be attributed to a combination of elevated entrainment of terrigenous detritus into the WBUC due to glacial retreat on continents flanking the upstream path of the WBUC (east Greenland and Iceland), and of increased bottom current (WBUC) vigor leading to elevated transport and deposition at the site during interglacials. This pattern is opposite to observations of flow of the Antarctic circum polar current (ACC) in the south Indian Ocean, which suggests an inter-hemispheric antiphase in marine circulation at the Milankovitch scale, with strong circulation in the deep North Atlantic when the ACC is weak, and vice versa. Dataset Antarc* Antarctic East Greenland Greenland Iceland North Atlantic Northwest Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Greenland Indian The Antarctic ENVELOPE(-48.529710,-48.529710,57.475150,57.475150) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
303-U1305 AGE ARM Susceptibility/susceptibility ratio COMPCORE Composite Core DEPTH sediment/rock Exp303 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution Magnetic susceptibility volume Maximum angular deviation Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Natural remanent magnetization/specific susceptibility ratio North Atlantic Climate 1 Northwest Atlantic NRM Declination Inclination |
spellingShingle |
303-U1305 AGE ARM Susceptibility/susceptibility ratio COMPCORE Composite Core DEPTH sediment/rock Exp303 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution Magnetic susceptibility volume Maximum angular deviation Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Natural remanent magnetization/specific susceptibility ratio North Atlantic Climate 1 Northwest Atlantic NRM Declination Inclination Mazaud, Alain Channell, James E T Stoner, Joseph S (Appendix A) Paleomagnetic of IODP Site 303-U1305 |
topic_facet |
303-U1305 AGE ARM Susceptibility/susceptibility ratio COMPCORE Composite Core DEPTH sediment/rock Exp303 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Joides Resolution Magnetic susceptibility volume Maximum angular deviation Natural remanent magnetization/anhysteretic remanent magnetization ratio Natural remanent magnetization/isothermal remanent magnetization ratio Natural remanent magnetization/specific susceptibility ratio North Atlantic Climate 1 Northwest Atlantic NRM Declination Inclination |
description |
Integrated Ocean Drilling Program (IODP) Expedition 303 to the North Atlantic in 2004 recovered rapidly deposited deep-sea sediments at IODP Site U1305 on Eirik Drift, located south of Greenland at 3460 m water depth, along the path of the Western Boundary Under Current (WBUC). About 200 m of sediment was sampled with u-channels from the composite section, providing a continuous record of paleomagnetic field directions and relative paleointensity (RPI) variations covering the past 1.2 Myr. The age model, based on an oxygen isotope record, is consistent with the fit of the RPI record to a calibrated template, and indicates higher sedimentation rates during interglacials relative to glacial epochs. Magnetite grain-size and concentration proxies indicate higher concentrations of magnetite with larger grain sizes during interglacials. Enhanced interglacial deposition can be attributed to a combination of elevated entrainment of terrigenous detritus into the WBUC due to glacial retreat on continents flanking the upstream path of the WBUC (east Greenland and Iceland), and of increased bottom current (WBUC) vigor leading to elevated transport and deposition at the site during interglacials. This pattern is opposite to observations of flow of the Antarctic circum polar current (ACC) in the south Indian Ocean, which suggests an inter-hemispheric antiphase in marine circulation at the Milankovitch scale, with strong circulation in the deep North Atlantic when the ACC is weak, and vice versa. |
format |
Dataset |
author |
Mazaud, Alain Channell, James E T Stoner, Joseph S |
author_facet |
Mazaud, Alain Channell, James E T Stoner, Joseph S |
author_sort |
Mazaud, Alain |
title |
(Appendix A) Paleomagnetic of IODP Site 303-U1305 |
title_short |
(Appendix A) Paleomagnetic of IODP Site 303-U1305 |
title_full |
(Appendix A) Paleomagnetic of IODP Site 303-U1305 |
title_fullStr |
(Appendix A) Paleomagnetic of IODP Site 303-U1305 |
title_full_unstemmed |
(Appendix A) Paleomagnetic of IODP Site 303-U1305 |
title_sort |
(appendix a) paleomagnetic of iodp site 303-u1305 |
publisher |
PANGAEA |
publishDate |
2012 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.815883 https://doi.org/10.1594/PANGAEA.815883 |
op_coverage |
LATITUDE: 57.475150 * LONGITUDE: -48.529710 * MINIMUM DEPTH, sediment/rock: 0.03 m * MAXIMUM DEPTH, sediment/rock: 193.02 m |
long_lat |
ENVELOPE(-48.529710,-48.529710,57.475150,57.475150) |
geographic |
Antarctic Greenland Indian The Antarctic |
geographic_facet |
Antarctic Greenland Indian The Antarctic |
genre |
Antarc* Antarctic East Greenland Greenland Iceland North Atlantic Northwest Atlantic |
genre_facet |
Antarc* Antarctic East Greenland Greenland Iceland North Atlantic Northwest Atlantic |
op_source |
Supplement to: Mazaud, Alain; Channell, James E T; Stoner, Joseph S (2012): Relative paleointensity and environmental magnetism since 1.2Ma at IODP site U1305 (Eirik Drift, NW Atlantic). Earth and Planetary Science Letters, 357-358, 137-144, https://doi.org/10.1016/j.epsl.2012.09.037 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.815883 https://doi.org/10.1594/PANGAEA.815883 |
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.815883 https://doi.org/10.1016/j.epsl.2012.09.037 |
_version_ |
1766252409851478016 |