noaa-icecore-11930
EPICA Dome C 217KYr Lead Isotope and Barium Data
Vallelonga, P.; Gabrielli, P.; Balliana, E.; Wegner, A.; Delmonte, B.; Turetta, C.; Burton, G.; Vanhaecke, F.; Rosman, K.J.R.; Hong, S.; Boutron, C.F.; Cescon, P.; Barbante, C.
EPICA Dome C 217KYr Lead Isotope and Barium Data
2011-08-31
NCDC-Paleoclimatology
ONLINE Files
Pending
https://www.ncdc.noaa.gov/paleo/study/11930
Investigator
P.
Vallelonga
Investigator
P.
Gabrielli
Investigator
E.
Balliana
Investigator
A.
Wegner
Investigator
B.
Delmonte
Investigator
C.
Turetta
Investigator
G.
Burton
Investigator
F.
Vanhaecke
Investigator
K.J.R.
Rosman
Investigator
S.
Hong
Investigator
C.F.
Boutron
Investigator
P.
Cescon
Investigator
C.
Barbante
earth science
paleoclimate
ice cores
206Pb/207Pb,bulk ice,95% confidence interval margin of error,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
ice age,null,null,calendar kiloyear before present,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
lead,bulk ice,null,picogram per gram,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
206Pb/204Pb,bulk ice,95% confidence interval margin of error,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
barium,bulk ice,null,picogram per gram,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
208Pb/207Pb,bulk ice,null,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
208Pb/207Pb,bulk ice,95% confidence interval margin of error,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
206Pb/204Pb,bulk ice,null,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
lead/barium,bulk ice,null,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
depth,null,null,meter,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
206Pb/207Pb,bulk ice,null,dimensionless,null,ice cores,null,null,N,null
earth science
paleoclimate
ice cores
delta 2H,bulk ice,null,per mil SMOW,null,ice cores,null,null,N,null
earth science
paleoclimate
ice core
chemistry
geoscientificInformation
217050 cal yr BP
2010 cal yr BP
Complete
-75.1
-75.1
123.4
123.4
3240
3240
Continent
Antarctica
EPICA Dome C>LATITUDE -75.1>LONGITUDE 123.4
None
Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site.
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
Vallelonga, P., P. Gabrielli, E. Balliana, A. Wegner, B. Delmonte,
C. Turetta, G. Burton, F. Vanhaecke, K.J.R. Rosman, S. Hong,
C.F. Boutron, P. Cescon, and C. Barbante. 2010.
Lead isotopic compositions in the EPICA Dome C ice core
and Southern Hemisphere Potential Source Areas.
Quaternary Science Reviews, Vol. 29, Issues 1-2, pp. 247-255,
January 2010. doi:10.1016/j.quascirev.2009.06.019
(EPICA publication no. 226)
A record of Pb isotopic compositions and Pb and Ba concentrations
are presented for the EPICA Dome C ice core covering the past 220 ky,
indicating the characteristics of dust and volcanic Pb deposition
in central East Antarctica. Lead isotopic compositions are also
reported in a suite of soil and loess samples from the Southern
Hemisphere (Australia, Southern Africa, Southern South America,
New Zealand, Antarctica) in order to evaluate the provenance
of dust present in Antarctic ice. Lead isotopic compositions in
Dome C ice support the contention that Southern South America
was an important source of dust in Antarctica during the last
two glacial maxima, and furthermore suggest occasional dust
contributions from local Antarctic sources. The isotopic signature
of Pb in Antarctic ice is altered by the presence of volcanic Pb,
inhibiting the evaluation of glacial-interglacial changes in dust
sources and the evaluation of Australia as a source of dust
to Antarctica. Consequently, an accurate evaluation of the
predominant source(s) of Antarctic dust can only be obtained
from glacial maxima, when dust-Pb concentrations were greatest.
These data confirm that volcanic Pb is present throughout
Antarctica and is emitted in a physical phase that is free
from Ba, while dust Pb is transported within a matrix
containing Ba and other crustal elements.
STUDY NOTES: EPICA Dome C, Antarctica ice core Pb and Ba concentrations,
and Pb isotope ratios, for the period 217 - 2 KYrBP.
Sample ages calculated according to EDC3 chronology reported by
Parrenin et al. Climate of the Past Discussions, 2007, 3(2), pp.575-606.
dD values from Jouzel et al. Science, 2007, v.317, pp.793-796.
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2010pb-ba.xls
GET DATA
https://www1.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc2010pb-ba.txt
USA/NOAA
DIF
Version 9.8.4
2018-12-11
2018-12-11