Authors / CoAuthors
Kirton, M.
Abstract
During 1963, the Australian National Antarctic Research Expeditions carried out two over snow traverses in the vicinity of Wilkes Station, Antarctica. The Autumn Traverse reached a point about 100 miles east of Wilkes and the Spring Traverse a point about 300 miles south-east of Wilkes. Surface elevations were measured by barometric methods and ice thicknesses were determined by gravity and seismic techniques. Magnetic measurements were made and borehole temperatures were taken. Experiments were conducted to devise means of improving the quality of the seismic reflection records. The optimum frequency range for the filter settings was found to be 90-215 c/s. A hand-drilled 4-ft shot-hole was adequate in the coastal or low plateau regions within 150 miles of Wilkes. Further inland, a shot hole of at least 30-ft depth was required. The optimum charge size was one pound of explosive.
Product Type
dataset
eCat Id
76471
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- Seismic Dataseismic survey
- ( Theme )
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- seismic reflection
- ( Theme )
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- seismic velocity
- ( Theme )
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- geophysics
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- AQ
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Seismology and Seismic Exploration
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- Published_External
Publication Date
1965-01-01T00:00:00
Creation Date
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asNeeded
Topic Category
geoscientificInformation
Series Information
Record
Lineage
In 1963, the Australian National Antarctic Research Expeditions (ANARE) made two oversnow traverses to make glaciological, meteorological, and geophysical observations in unexplored parts of Antarctica east and south-east of Wilkes Station. On these traverses, the author, a geophysicist with the Bureau of Mineral Resources, was responsible for the geophysical programme. This comprised the measurement of surface altitudes by barometric methods, the measurement of ice thickness by seismic and gravity techniques, the determination of the components of the geomagnetic field, and the measurement of borehole temperatures. In addition, experiments were carried out to improve the quality of the seismic reflection records.
Parent Information
Extents
[-90.0, -60.0, -180.0, 180.0]
Reference System
Spatial Resolution
Service Information
Associations
Source Information
Source data not available.