Authors / CoAuthors
Colwell, J.B.
Abstract
A morphological study of zircons from the granitic rocks of southeastern South Australia has been made using reduced major axes, length/breadth ratios, colour, zoning and other features. In general, zircons in the biotite adamellites (Encounter Bay and Kingston areas) are more elongate, less euhedral and freer of inclusions and zoning than those occurring in the other granitic rocks of the region. Results suggest that the biotite adamellites are genetically related (they share the same zircon characteristics) and that they are unrelated to the more widespread eastern zone of hornblende-biotite granite, quartz porphyry and hornblende and biotite microgranite. The rocks in the eastern zone share very similar zircons and appear to be related.
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document
eCat Id
80987
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
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2601
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Keywords
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- GA PublicationJournal
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- SAVIC
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_External
Publication Date
1979-01-01T00:00:00
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unknown
Topic Category
geoscientificInformation
Series Information
BMR Journal of Australian Geology and Geophysics 4:1:72-76
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Unknown
Parent Information
Extents
[-38.5, -35.0, 138.0, 142.0]
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Spatial Resolution
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