noaa-ocean-14512
Iceland/Greenland Stream Sediment Magnetic Data
Hatfield, R.G.; Stoner, J.S.; Carlson, A.E.; Reyes, A.V.; Housen, B.A.
Iceland/Greenland Stream Sediment Magnetic Data
2013-05-28
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/14512
Investigator
R.G.
Hatfield
Investigator
J.S.
Stoner
Investigator
A.E.
Carlson
Investigator
A.V.
Reyes
Investigator
B.A.
Housen
earth science
paleoclimate
paleoceanography
saturation remanent magnetization/saturation magnetization,sediment,null,dimensionless,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Terrane. Abbreviations: NMB=Nagssugtoqidian Mobile Belt AB=Archean Block KMB=Ketilidian Mobile Belt
earth science
paleoclimate
paleoceanography
notes,null,null,null,null,paleoceanography,null,null,C,Size Fraction
earth science
paleoclimate
paleoceanography
sample identification,null,null,null,null,paleoceanography,null,null,C,null
earth science
paleoclimate
paleoceanography
magnetic susceptibility,sediment,null,cubic meter per kilogram,null,paleoceanography,null,null,N,x10-6 units
earth science
paleoclimate
paleoceanography
coercivity of remanence/coercivity,sediment,null,dimensionless,null,paleoceanography,null,null,N,null
earth science
paleoclimate
paleoceanography
anhysteretic remanent magnetization/magnetic susceptibility,sediment,null,ampere per meter,null,paleoceanography,null,null,N,Xarm/X
earth science
paleoclimate
paleocean
physical properties
earth science
paleoclimate
paleocean
magnetic susceptibility
geoscientificInformation
2008 AD
2008 AD
-58 cal yr BP
-58 cal yr BP
Complete
55
82
-60
-15
Continent
North America
Greenland
Greenland>LATITUDE >LONGITUDE
Continent
Europe
Northern Europe
Iceland
Iceland>LATITUDE >LONGITUDE
None
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English
DOC/NOAA/NESDIS/NCEI
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
https://www.ncdc.noaa.gov/data-access/paleoclimatology-data
DATA Center Contact
Bruce
Bauer
bruce.a.bauer@noaa.gov
paleo@noaa.gov
303-497-6280
303-497-6513
325 Broadway, E/NE31
Boulder
CO
80305-3328
USA
online
ASCII
Robert G. Hatfield, Joseph S. Stoner, Anders E. Carlson, Alberto V. Reyes, Bernard A. Housen. 2013.
Source as a controlling factor on the quality and interpretation of sediment magnetic records from the northern North Atlantic. Earth and Planetary Science Letters, Vol. 368, pp. 69-77, 15 April 2013.
DOI: 10.1016/j.epsl.2013.03.001
Magnetic properties of eight particle size ranges from nine locations in Iceland and 26 locations in southern Greenland reveal the importance of source variation for our understanding of paleomagnetic and environmental magnetic records in the marine environment. These terrestrial samples show varying degrees of particle size dependence with all samples showing that the silt fraction possesses greater concentrations of ferrimagnetic minerals than either clay or sand. Fine pseudo-single domain (PSD) size magnetic grains dominate the magnetic assemblage of all Icelandic fractions. In contrast, Greenlandic samples possess greater variation in magnetic grain size; only fine silt and clay are as magnetically fine as the Icelandic PSD grains, while Greenlandic silts and sands are dominated by coarser PSD and multi-domain grains. These observations from potential marine sediment sources suggest that the silt size fraction is a likely driver for much of the concentration-dependent parameters derived from bulk magnetic records and that the magnetic grain size of the silt fraction can be used to discriminate between Icelandic and Greenlandic sources. Using these results to examine magnetic grain size records from marine sediment cores collected across the northern North Atlantic suggests that source, not just transport-controlled physical grain-size, has a significant impact on determining the magnetic grain size at a particular location. Homogeneity of magnetic grain size in Icelandic sediments at least partially explains the consistent quality of paleomagnetic records derived from cores surrounding Iceland and their ability to buffer large environmental changes.
STUDY NOTES: Magnetic data (susceptibility, hysteresis) on stream sediments from 78 locations all over Iceland
and Greenland, providing data on terrestrial sediment sources to the North Atlantic.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hatfield2013/hatfield2013xarmx.txt
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https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hatfield2013/hatfield2013.xls
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https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hatfield2013/hatfield2013hloop.txt
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https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hatfield2013/hatfield2013ms.txt
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https://www1.ncdc.noaa.gov/pub/data/paleo/contributions_by_author/hatfield2013/hatfield2013hparam.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11