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Are thick volcanic piles concealed in North Australian proterozoic basins?


Leaman, DE, Are thick volcanic piles concealed in North Australian proterozoic basins?, Exploration Geophysics, 27, (1) pp. 13-20. ISSN 0812-3985 (1996) [Refereed Article]

DOI: doi:10.1071/EG996013


Long wavelength magnetic anomalies of moderate amplitude common across large parts of northern Australia are usually assigned to deep sources beneath relatively undisturbed mid Proterozoic or Phanerozoic cover rocks. These can be shown, in the McArthur Basin at least, to be largely due to thick volcanic sequences that either do not outcrop or only outcrop in thinned, onlapped variants near the basin margins. This alternative interpretation of the basin indicates that it might have a scale and formation content comparable with that of the adjacent western Mt Isa sequence and theories about basin formation, mineralising processes and fluid circulation could be reviewed. © 1996, CSIRO. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geophysics
Research Field:Geophysics not elsewhere classified
Objective Division:Mineral Resources (Excl. Energy Resources)
Objective Group:Other mineral resources (excl. energy resources)
Objective Field:Other mineral resources (excl. energy resources) not elsewhere classified
UTAS Author:Leaman, DE (Dr Leaman)
ID Code:8267
Year Published:1996
Deposited By:Earth Sciences
Deposited On:1996-08-01
Last Modified:2011-08-19

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