The Moonta Subdomain forms the southern part of the Olympic Cu-Au province on the eastern margin of the Gawler Craton, and
underlies most of the Yorke Peninsula and Spencer Gulf. The domain basement comprises metasediments and metavolcanics of the
Palaeoproterozoic Wallaroo Group (~1760-1740 Ma) which were deformed and metamorphosed to upper greenschist-amphibolite facies
during the Kimban Orogeny (~1720 Ma). These rocks were further deformed and intruded by granitoids and minor mafic intrusions
of the Hiltaba Suite between about 1600 Ma and 1575 Ma. The Moonta Subdomain basement is highly prospective for iron oxide-Cu-Au
mineralisation associated with the Hiltaba magmatic event. However outcrop of these basement rocks is limited almost entirely
to narrow coastal exposures. The majority of the prospective basement is concealed by up to 100 metres of Neoproterozoic to
Quaternary sediments, and geological mapping of the basement is largely limited to interpretation of geophysics (airborne
magnetics, gravity, AEM) and drilling.
Citation
Title Yorke Peninsula (Moonta Subdomain) GIS Dataset
Metadata standard for this record:
ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata
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1.1
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a05f7892-b6c5-7506-e044-00144fdd4fa6
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