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84. Rythdale - Arcuate Ridge

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:Tooradin – 655777. Four kilometres east of Rythdale.
Image: Sites of Significance Westernport Bay
Arcuate ridge at Rythdale, Site 84

Access:
Hobson Road and Soldiers Road.

Ownership:
Private land and Crown Land.

Geology/Geomorphology:
The narrow ridge traversed by Hobson Road is similar in form and composition to that described at Cardinia (Site 86). It extends for three kilometres south of the Deep Creek Drain but is seldom more than 100 metres in width. The convex (eastern) side lacks the irregularities and depressions that are present at Cardinia, and the Rythdale ridge describes a more gentle curve.

Significance:
State. This ridge is an unusual feature and its precise mode of Cardinia above, the only comparable features in Victoria appear to be on the East Sale Plain near Lake Wellingtion (McRae-Williams et al., 1981).

Management:
Class 2. The management principles outlined for Site 86 (Cardinia) apply also for this site.


References:

Jenkin, J.J. (1962). The geology and hydrogeology of the Westernport area. Dept. of Mines, Vict. Underground Water Investigation Report. No. 5.
Jenkin, J.J. (1970). Geological history of the West Gippsland Region. Proc. Roy. Soc. Vict. 84 (1) 19-28.
McRae-Williams, et al. (1981).

84. Rythdale - Arcuate Ridge
Distribution of sand in the Rythdale Ridge, Site 84
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