Authors / CoAuthors
Champion, D.C. | Bultitude, R.J.
Abstract
Intrusive and extrusive, predominantly felsic, magmatism of Carboniferous to Permian age occurs throughout the north Queensland region (Figure kennedy), and comprises the most widespread and voluminous magmatic event in the region. The great bulk of the exposed KIA is concentrated in the Townsville-Cairns-Cooktown-Georgetown-Charters Towers-Burdekin Falls regions (Figure Kennedy)-within the early-mid-Palaeozoic Hodgkinson and Broken River Provinces, the Etheridge Province and associated Proterozoic provinces, and in the northern part of the Thomson Orogen including the Greenvale, Charters Towers, and Barnard Provinces, and the northern Drummond Basin. The boundary between the northern Drummond Basin and Connors (nNEO) Subprovince is taken to be the Millaroo Fault Zone (MFZ). Geophysical data (and limited geochronology) show that Carboniferous-Permian granites also form a westerly trending belt-the Townsville-Mornington Island Belt (TMIB; originally Townsville-Mornington Island Igneous Belt), which extends under cover from north of Mount Surprise, at least as far as Mornington Island in the Gulf of Carpentaria, transecting regional trends (Wellman, 1992, 1995; Wellman et al., 1994). There is also recent geochronological evidence for KIA magmatism in the environs of the Millungera Basin (Neumann & Kositcin, 2011). Outcrop is discontinuous in the belt extending northwards from Cairns up Cape York Peninsula, to the islands of Torres Strait (and beyond) but geophysical evidence implies there is more extensive magmatism under cover.
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nonGeographicDataset
eCat Id
72924
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Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
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Keywords
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- External Publication
- ( Theme )
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- geochemistry
- ( Theme )
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- geology
- ( Theme )
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- petrology
- ( Theme )
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- plate tectonics
- ( Theme )
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- isotopes
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- AU-QLD
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2012-01-01T00:00:00
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geoscientificInformation
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[-22.0, -10.0, 141.0, 147.0]
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