Ko4 Deep Creek and Konagaderra Creek - Outcrops

This information has been developed from the publications:

Sites of Geological and Geomorphological Significance in the Western Region of Melbourne (1986) by Neville Rosengren
Sites of Geological and Geomorphological Significance on the Coast of Port Phillip Bay (1988) by Neville Rosengren.
Sites of Geological and Geomorphological Significance in the Shire of Otway (1984) by Neville Rosengren.

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 (external link) for details of geological heritage reports, and a bibliography.

Location	Konagaderra - 104438. Shire of Bulla. Valley of Deep Creek at junction of Konagaderra Creek 2.5 km west of Donnybrook Road.	Ko4 - Incised meanders of Deep Creek, Mickleham.
Access	Kinnear Road of Mickleham Road
Ownership	Private land
Site Description	Erosion by Deep Creek has stripped off the cover of the Newer Volcanics basalt to expose Ordovician and Silurian sediments. The zone of stripping is widest on the west of the creek and here only small outliers of weathered volcanics remain close to the creek as hill cappings.
	The Silurian sediments strike north-south and at this site the strike of the sediments determines the orientation of spurs and short reaches of stream channel. The processes of valley widening involving slumping, mass movement and retreat of the basalt edge are well displayed on the western valley slopes of Deep Creek.
Significance	Regional. Dissection of basalt surfaces by Deep Creek and its tributaries, and the development of landforms determined by structures of the underlying Palaeozoic sediments is well displayed at this site. These features are typical of the geology and landforms of the area between the Hume Highway and the Calder Highway in the study area.
Management	Further building construction, quarrying or soil extraction, apart from that necessary to service the existing properties, should not be permitted on this site.

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