GISP2 10Be Concentration, 40,000 Years, Finkel and Nishiizumi 1997
Entry ID: NOAA_NCDC_PALEO_FINKEL

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Summary
Abstract: Melted water was collected from the outside of samples taken for cation and
anion analysis. A small aliquot was taken for anion analysis (chloride,
nitrate, and sulfate) and the remainder was weakly acidified with HNO3 to yield
a final pH of about 2. Be, Cl and Al carriers were then added. The Be (and Al
and Cl) were concentrated from the melted ice using ion exchange resins. Be
was then eluted from the cation exchange column, precipitated as Be(OH)2 and
ignited to BeO for accelerator mass spectrometry (AMS) measurement. The AMS
measurements were carried out at the Lawrence Livermore National Laboratory
Center for Accelerator Mass Spectrometry (Davis et al., 1990). The 10Be
(half-life = 1.5 x 10^6 years) concentration was normalized to an ICN standard
(diluted by K. Nishiizumi) after carrier blank and boron background correction.

Related URL
Link: GET DATA
Description: Access to data and documentation


Geographic Coverage
 N: 73.0 S: 72.0  E: -37.0  W: -38.0
 Min Depth: 710M  Max Depth: 2253M

Data Set Citation
Dataset Originator/Creator: Finkel, R.C., and K. Nishiizumi
Dataset Title: 10Be concentration (103 atom/g) in GISP2 ice, 719 - 2253 m
Dataset Release Place: Boulder, CO
Dataset Publisher: NOAA/NCDC/WDC Paleoclimatology
Online Resource: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/gis...


Paleo_Temporal_Coverage
Paleo Start Date: 40,000 ybp
Paleo Stop Date: 0 ybp
Chrono Unit:


Location Keywords
CONTINENT > NORTH AMERICA > GREENLAND
GEOGRAPHIC REGION > ARCTIC
GEOGRAPHIC REGION > POLAR


Science Keywords
PALEOCLIMATE >ICE CORE RECORDS >IONS    [Definition]
PALEOCLIMATE >ICE CORE RECORDS >ISOTOPES    [Definition]
SUN-EARTH INTERACTIONS >SOLAR ACTIVITY >SOLAR IRRADIANCE    [Definition]


ISO Topic Category
CLIMATOLOGY/METEOROLOGY/ATMOSPHERE
GEOSCIENTIFIC INFORMATION


Project
GISP2 >Greenland Ice Sheet Project II    [Information]


Keywords
Beryllium concentrations
Be-10
ice cores
deglaciation
solar variations


Data Set Progress
COMPLETE


Originating Center
NOAA/NCDC


Data Center
World Data Center for Paleoclimatology, Boulder    [Information]
Data Center URL: http://www.ncdc.noaa.gov/paleo/

Data Center Personnel
Name: WDC/PALEOCLIMATOLOGY, BOULDER
Phone: +1 (303) 497-6160
Fax: +1 (303) 497-6513
Email: paleo at noaa.gov
Contact Address:
World Data Center for Paleoclimatology
NOAA/NCDC Code E/GCx3
325 Broadway
City: Boulder
Province or State: CO
Postal Code: 80303
Country: USA



Distribution
Distribution_Media: online ftp
Distribution_Format: text
Fees: none


Personnel
R. C. FINKEL
Role: INVESTIGATOR
Phone: (925) 422-2044
Fax: (925) 422-0208
Email: finkel1 at llnl.gov
Contact Address:
LLNL, L-219
City: Livermore
Province or State: CA
Postal Code: 64550
Country: USA


KUNIHIKO NISHIIZUMI
Role: INVESTIGATOR
Phone: 510-643-9361
Fax: 510-643-7629
Email: kuni at ssl.berkeley.edu
Contact Address:
University of California
Space Sciences Lab
7 Gauss Way
City: Berkeley
Province or State: CA
Postal Code: 94720-7450
Country: USA


Publications/References
Finkel, R.C., and K. Nishiizumi. 1997. Beryllium 10 concentrations in the
Greenland Ice Sheet Project 2 ice core from 3-40 ka. Journal of Geophysical Research 102:26699-26706.

Alley, R.B., R.C. Finkel, K. Nishiizumi, S. Anandakrishnan, C.A. Shuman,
G.R. Mershon, G.A. Zielinski, and P.A. Mayewski. 1995. Changes in continental and sea-salt atmospheric loadings in central Greenland during
the most recent deglaciation: Model-based estimates. Journal of Glaciology
41:503-514.

Davis, J.C., I.D. Proctor, J.R. Southon, M.W. Caffee, D.W. Heikkinen, M.L.
Roberts, T.L. Moore, K.W. Turteltaub, D.E. Nelson, D.H. Loyd, and J.S.
Vogel. 1990. LLNL/UC AMS facility and research program. Nuclear Instruments and Methods in Physics Research B52:269-272.

Creation and Review Dates
DIF Creation Date: 2004-11-08
Last DIF Revision Date: 2004-11-08

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