Data Set ID:

Blue Ice Tephra II - Brimstone Peak, Version 1

This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Brimstone Peak (75.888S 158.55E) in East Antarctica. Tephra samples were collected between 15 November 1996 and 15 January 1997.

The 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.

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 Excel 97 data files, JPG map files, and GIF-formatted BSE images. Data are available via ftp.

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Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: -75.86, S: -75.9, E: 158.67, W: 158.55

Spatial Resolution:
Not Specified
Temporal Coverage
  • 1996-01-01 to 1997-12-31
Temporal Resolution:
Not specified
  • Ice Core Records
  • Glaciers/Ice Sheets > Ice Sheets
  • Ice Core Records > Volcanic Deposits
Data Format(s):
  • GIF
  • Microsoft Excel
  • ASCII Text (.txt)
  • JPEG
Data Contributor(s): Nelia Dunbar

Data Citation

As a condition of using this data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Dunbar, N. 2003. Blue Ice Tephra II - Brimstone Peak, Version 1. [indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].
No See Also links are available for this data set.

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA