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75. Shoreham - Silurian Inlier

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:Flinders – 263449. Four kilometres west of Shoreham.
Access:Punty Land.
Ownership:Private land.
Geology:A poorly exposed outcrop of mudstones on a tributary of Mantons Creek was described by Keble (1950) as Silurian. The creek bank and the old road cutting which served as the reference site for Keble are now overgrown and the outcrops are obscured.
Significance:Regional. The inlier represents a structural or relief high of the Palaeozoic basement rocks. It therefore reduces or limits the thickness of the Older Volcanics here to one hundred metres or less, compared with a thickness of several hundred metres near Flinders.
Management:Class 3. Quarrying or excavation at the site would expose more of the basement rock and could be permitted. As the outcrop is limited in extent, construction activities that would cover most of the outcrop should not be permitted.

References:

Keble, R.A. (1950). The Mornington Peninsula.
Geol. Surv. Vict. Memoir 17.

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