IEDA
Dataset Information
Blue Ice Tephra II - Brimstone Peak
Data DOI:
https://doi.org/10.7265/N5MG7MDK
Cite as
Dunbar, N. (2003) "Blue Ice Tephra II - Brimstone Peak" U.S. Antarctic Program (USAP) Data Center. doi: https://doi.org/10.7265/N5MG7MDK.
AMD - DIF Record(s)
Abstract
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.
Creator(s):
Dunbar, Nelia
Date Created:
2003-02-18
Repository:
USAP-DC (current) - NSIDC (original)
Spatial Extent(s)
West: 158.55, East: 158.67, South: -75.9, North: -75.86
Temporal Extent(s)
Start: 1996-01-01 - End: 1997-12-31
Award(s)
Version:
1
References
  1. Dunbar, N. W., Zielinski, G. A., and Voisins, D. T. ( 2003), Tephra layers in the Siple Dome and Taylor Dome ice cores, Antarctica: Sources and correlations, J. Geophys. Res., 108, 2374 (doi:10.1029/2002JB002056)
Supplemental Docs
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nsidc0114_UG.pdf
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