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14.2 Gellibrand Marl - Type Section

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:14-155858. Coastal cliffs two to three kilometres north-west of the mouth of the Gellibrand River.

Access:

Off Great Ocean Road 100 metres west of the bridge over La Trobe Creek.

Ownership:

Crown land (Port Campbell National Park).

Geology:

This site includes the type section for the Gellibrand Marl which is a marine formation of early Miocene age. The coastal cliffs provide the best exposures of these rocks in the Otway Shire, the section consisting of thin beds of fossiliferous grey and blue clays. Access to the sections is difficult due to the steep cliffs and large fallen blocks from the overlying dune limestone.

Significance:

State. The locality has been the subject of several papers discussing the Tertiary stratigraphy of the Otway Basin and should be available to students and research workers.

References:

Wilkinson, C.S. (1865). "Report on the Cape-Otway country." (From Parl. Papers 1865-65.) Rep. geol. Surv. Vict.

Murray, R.A.F. (1877). "Report on the geology of portions of the Cape Otway district." Rep. Progr. geol. Surv. Vict. 4: pp. 11-12.
Baker, G. (1944). "The geology of the Port Campbell district." R. Soc. Vict. 56: 76-108.
Baker, G. (1953). "The relationship of Cyclammina bearing sediment to the older Tertiary deposits southeast of Princetown, Victoria." Mem. Nat. Mus. Vict. 18: pp. 125-134.
Wopfner, H. & Douglas, J.G. (1971). "The Otway Basin of southeastern Australia." Spec. Bull. geol. Surv. S. Aust: 464 pp.
Douglas, J.G. & Ferguson, J. (1976). "Geology of Victoria." Geol. Soc. Aust. Spec. Pub. 5: 528pp.

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