Product catalogue
A contribution to the geology and glaciology of the western part of the Australian Antarctic Territory
Reconnaissance surveys based on the A.N.A.R.E. Station at Mawson (lat. 67° 36' S., long. 62° 53' E.) have covered Enderby Land, Kemp Land, MacRobertson Land and Princess Elizabeth Land between latitudes 67° and 74° South and longitudes 50° and 80° East. Less than one percent of this area consists of rock outcrops, the remainder being covered by permanent snow and ice. Coastal outcrops and islands occur at Amundsen Bay, in the King Edward VIII Gulf Stefansson Bay Mawson area, and in the Larsemann Hills Vestfold Hills area. Parts of the coastline show evidence of submergence, on which is superimposed a smaller uplift. Inland ranges occur in Enderby Land and to the south of Mawson. The latter, comprising the Prince Charles Mountains and their southern extension, rise to heights of more than 9,000 feet above sea level, and their northern portion is extensively block-faulted. Most of the outcrops consist of basement rocks of probable Precambrian age. Rocks of sedimentary origin are now represented by garnetiferous quartzite, hornfels, quartz-feldspar-garnet gneiss, and granular gneiss. The dominant igneous rocks are granitic gneisses and hybrid gneisses with minor aplite, pegmatite, gabbro, norite, pyroxenite, and hypersthenic. Several large bodies of charnockitic granite intrude other rocks of the basement complex, and are regarded as products of palingenesis. In several areas, the complex is intruded by dolerite dykes, believed to be of Mesozoic age, and by minor basalts, which may be late Tertiary or Recent. At the Amery Locality, about 250 miles south-east of Mawson, an area of about 200 square miles consists of flat-lying Permian arkosic sandstones and grits with minor pebble beds and coal seams. These are tentatively correlated with the Beacon Formation of Victoria Land. Both high-level and low-level moraines have been noted, and the latter include lateral, medial, terminal, and ground moraines. No mineral deposits of economic importance have so far been discovered in the area, but traces of copper, iron, manganese, coal, and radioactive minerals are recorded. Measurements of ablation, accumulation, horizontal movement, neve densities, and neve temperatures were obtained and the mass and heat economy of the ice cap was investigated. Near Mawson, blue ice predominates in the ablation zone, which extends to a height of about 2,400 feet above sea level. Melt-water streams, cryoconite holes, flow structures and crevassing were observed in this zone. Above this elevation, accumulation predominates and the plateau consists largely of neve, with a strong development of sastrugi and depositional layering. However, local areas of blue ice, often with severe crevassing, occur close to many of the larger inland rock exposures. These inland portions of the ice cap are drained by several major glaciers, the largest being the Lambert Glacier, more than 200 miles long and up to 30 miles wide, which feeds the Amery Ice Shelf 250 miles east of Mawson.
Simple
Identification info
- Date (Publication)
- 1959-01-01T00:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/241
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Bureau of Mineral Resources, Geology and Geophysics
Canberra Author Crohn, P.W.
1
- Name
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Bulletin
- Issue identification
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052
- Point of contact
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Role Organisation / Individual Name Details Custodian Corp
Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice
- Topic category
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- Geoscientific information
- Maintenance and update frequency
- Unknown
Resource format
- Title
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Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
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GA Publication
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Bulletin
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- Theme
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geology
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- Keywords
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AQ
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- Australian and New Zealand Standard Research Classification (ANZSRC)
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Earth Sciences
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- Keywords
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Published_External
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Resource constraints
- Title
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Creative Commons Attribution 4.0 International Licence
- Alternate title
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CC-BY
- Edition
-
4.0
- Access constraints
- License
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- License
Resource constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
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Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
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Download the Bulletin (pdf)
Download the Bulletin (pdf)
- Distribution format
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pdf
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Resource lineage
- Statement
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Unknown
- Hierarchy level
- Non geographic dataset
- Other
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GA Publication
- Description
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Source data not available.
Metadata constraints
- Title
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Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
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urn:uuid/a05f7892-7ff5-7506-e044-00144fdd4fa6
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GeoNetwork UUID
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- Contact
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Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Document
- Name
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Legacy AGSO BMR Bulletins
Alternative metadata reference
- Title
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Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/241
- Date info (Revision)
- 2018-04-20T06:09:02
- Date info (Creation)
- 1996-10-29T00:00:00
Metadata standard
- Title
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AU/NZS ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-1:2014
Metadata standard
- Title
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ISO 19115-3
- Title
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Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
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Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551