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50. Hastings - Ordovician and Silurian Outcrops

This information has been developed from one or more of these publications:

  • Sites of Geological and Geomorphological Significance in the Westernport Bay Catchment (1984) by Neville Rosengren.
  • 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 Environmental Significance in the Flood Plain of the Upper Yarra Valley Region (1983) by Neville Rosengren, Douglas Frood and Kim Lowe (as part of a study of Sites of Environmental Significance by the University of Melbourne for the then Upper Yarra Valley and Dandenong Ranges Authority).
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:Tyabb – 379583. Two kilometres west of Hastings.
Access:Coolart Road.
Ownership:Private land.
Geology:Weathered sediments outcrop in the base of the Warringine Creek on both sides of Coolart Road. Near the road crossing the sediments are predominantly mudstones and are Silurian, while 800 metres upstream they are sandstones of Upper Ordovician age.
Significance:Regional. While the exposures are poor, they represent one of the few areas where the transitional from Ordovician to Silurian sediments may be traced in the western side of the Westernport Bay.
Management:Class 2. Reclamation or construction works that would obscure the valley floor should not be permitted.
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