Blue Ice Tephra II - Mt. DeWitt  View Catalog Page Entry ID
NSIDC-0115
Summary
This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Mt. DeWitt, Antarctica (77.12 deg S, 159.51 deg E). Tephra samples were collected between 15 November 1996 and 15 January 1997.
Data include the following information for each sample site: a general description, electron microprobe analysis, GPS location, neutron activation analysis, and a visual description of the petrography. Data are provided as an Excel 97 data file, (this file is also divided into various text files) and TIF images. Data are available via ftp.
Antarctic ice sheets preserve a record of the volcanic ash layers and chemical aerosol signatures of local and distant volcanic eruptions. Correlation of individual tephra layers, or sets of layers, in blue ice areas will allow a better understanding of the geometry of ice flow in these areas. Tephra layers in deep ice cores can also provide unique time-stratigraphic markers in cores that are difficult to date.
Geographic Coverage
Spatial Coordinates:
N: -77.12°
S: -77.12°
E: -159.51°
W: -159.51°
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Multimedia Sample
Sample Location Map
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Data Set Citation
Dataset Creator: Nelia Dunbar
Dataset Title: Blue Ice Tephra II - Mt. DeWitt
Dataset Release Date: 2003-02-01
Dataset Release Place: Boulder, Colorado USA
Dataset Publisher: NSIDC: National Snow and Ice Data Center
Online Resource: http://nsidc.org/data/nsidc-0115.html
Dataset DOI: http://dx.doi.org/10.7265/N5GQ6VPV
Temporal Coverage
Start Date: 1996-01-01
Stop Date: 1997-12-31
Location Keywords
- CONTINENT ANTARCTICA
Science Keywords
- Cryosphere Glaciers/Ice Sheets Ice Sheets
- Paleoclimate Ice Core Records
- Paleoclimate Ice Core Records Volcanic Deposits
- Terrestrial Hydrosphere Glaciers/Ice Sheets Ice Sheets
Ancillary Keywords
- AGDC
- Antarctica
- Geochemistry
- Glaciology
- Ice Cores
- Mt. DeWitt
- NSIDC
- Tephra
- Volcanic
Platform
- GROUND-BASED OBSERVATIONS
- GROUND STATIONS
Instrument
Data Set Progress
complete
Data Center
National Snow and Ice Data Center
Data Center URL: http://nsidc.org
Data Center Personnel
Name: NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
NSIDC Antarctic Glaciological Data Center
Data Center URL: http://nsidc.org/agdc/
Data Center Personnel
Name: NSIDC AGDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
NSIDC U.S. Antarctic Data Coordination Center
Data Center URL: http://nsidc.org/usadcc/
Data Center Personnel
Name: NSIDC USADCC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Distribution
Distribution Media: FTP
Distribution Size: 104 KB
Distribution Format: Microsoft Excel
Distribution Media: FTP
Distribution Size: 18 MB
Distribution Format: TIFF
Distribution Media: FTP
Distribution Size: 51 KB
Distribution Format: ASCII Text
Personnel
Nelia Dunbar
Role: INVESTIGATOR
Contact Address:
- New Mexico Bureau of Mines & Mineral Resources
- Earth and Environmental Science Department
- New Mexico Tech
City: Socorro
Province or State: NM
Postal Code: 87801-4796
NSIDC User Services
Role: TECHNICAL CONTACT
Phone: 1 303 492-6199 x
Fax: 1 303 492-2468 x
Email: nsidc@nsidc.org
Contact Address:
- National Snow and Ice Data Center
- CIRES, 449 UCB
- University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA
Reference
Dunbar, N., G. Zielinski, and D. Voisins, 2002, Tephra layers in the Siple and Taylor Dome Ice Cores, Antarctica: Correlations and Sources: submitted to Quaternary Research.
Metadata Name and Version
Metadata Name: CEOS IDN DIF
Metadata Version: 9.7
Creation and Review Dates
DIF Creation Date: 2003-02-01
Last DIF Revision Date: 2013-03-15
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