Authors / CoAuthors
Halpin, J.A | Clarke, G.L. | Gerakiteys, C.L. | Kelly, N.M. | Fitzherbert, J.A. | Schroter, F.C. | Carson, C.
Abstract
The Stillwell Hills region comprises granulite facies gneisses which record evidence for multiple periods of deformation and metamorphism spanning more than 2500 Million years. The predominant orthogneiss package (Stillwell Orthogneiss) represents the margin of an Archaean craton exposed in Enderby Land, some 150 km to the west that was reworked during the late Proterozoic. Younger additions to the crust include Palaeoproterozoic charnockitic gneiss (Scoresby Charnockite) and Meso-Neoproterozoic mafic sills and dykes (Point Noble Gneiss, Kemp Dykes) and felsic pegmatites (Cosgrove Pegmatites). Subordinate supracrustal rocks, including metaquartzite, metapelitic, metapsammitic and calc-silicate gneiss (Dovers Paragneiss, Sperring Paragneiss, Stefansson Paragneiss, Keel Layered Paragneiss, Ives Gneiss) are intercalated and interfolded with the Archaean-Palaeoproterozoic orthogneisses.
Product Type
nonGeographicDataset
eCat Id
72717
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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- Geological Map25K scale
- ( Theme )
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- Antarctic data
- ( Theme )
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- geology
- ( Theme )
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- marine
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- AQ
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Geology
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- Published_External
Publication Date
2011-01-01T00:00:00
Creation Date
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unknown
Topic Category
geoscientificInformation
Series Information
13521
Lineage
Unknown
Parent Information
Extents
[-68, -67, 59, 60]
Reference System
Spatial Resolution
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Source data not available.