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8823-1 Ring Dyke

This information has been developed from the publications:

    • Sites of Geological and Geomorphological Significance in Central Gippsland (1981) by Neville Rosengren, M.S McRae-Williams and S.M Kraemers.
    • Sites of Geological and Geomorphological Significance in the Gippsland Lakes Catchment (1984) by Neville Rosengren.
    • Sites of Geological and Geomorphological Significance in East Gippsland, Victoria (1981) by Neville Rosengren, M.S McRae-Williams
Geological heritage sites, including sites of geomorphological interest and volcanic heritage sites, are under regular revision by the Geological Society of Australia, especially in the assessment of significance and values. Reference should be made to the most recent reports. See the Earth Science Heritage section of the Geological Society of Australia website for details of geological heritage reports, and a bibliography.


325499. 3.5 kilometres east of Genoa


Doleritic ring dyke


Yandown Track


Private property


A ring dyke of doleritic composition intrudes Ordovician Mallacoota Bed sediments at Yandown, east of Genoa. The dyke rocks are highly weathered and exposures are poor.


Differential erosion, of the evidently softer dyke material, by two streams has produced a circular drainage pattern.


Regional. This is the only ring dyke that has been recorded in the region.


Land use which would obscure the ring dyke would degrade the site.


Douglas, J.G. and Ferguson, J.A. (eds) 1976.
Geology of Victoria. Geological Society of Australia, Special Publication No. 5.
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