24.9 Stony Creek

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 (external site) section of the Geological Society of Australia website for details of geological heritage reports, and a bibliography.

Location:	24-255008. Two kilometres north of Point Lewis.
Access:	S. M. Track.
Ownership:	Crown land (Otway National Park).
Geology:	North from Stony Creek, the dips of the Mesozoic rocks are to the south-west, contrasting with the northwest dip that prevails south of Blanket Bay.
Significance:	Regional. The change in dip direction north of Stony Creek is used as evidence for the existence of a major fault striking north-south and extending across the width of the Otway Ranges to Gellibrand. The morphology of the shore platform also reflects the change in direction of strike of the Mesozoic rocks. It is more deeply indented here than to the south of Stony Creek. The coastal streams are aligned along the north-south strike direction but where they have cut to sea level, the outlet is not sand encumbered and there is little alluvial fill. This indicates an accordance between rates of coastal erosion and valley down-cutting (Eric Bird, pers. comm.).

24.9 to 24.11

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