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Let4 - Lethbrige - Tertiary Section

This information has been developed from this publication:

  • Sites of Geological and Geomorphological Significance in the Western Region of Melbourne (1986) 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 section of the Geological Society of Australia website for details of geological heritage reports, and a bibliography.

Location:Lethbridge - 490975. Shire of Bannockburn. Southern valley slope of Moorabool River, 3.5 km north of Lethbridge.

Access:
Acklands Road.

Ownership:
Private land.

Site Description:
On the undercut valley slope are outcrops of the gravels and sands that separate the calcareous Lower Maude Limestone Member from the Ordovician bedrock. The non-marine sediments are 20 m thick, with a basal conglomerate 3 to 4 m thick passing up into coarse sands and gravels, and grading higher up into Lower Maude Limestone Member overlain by Maude Basalt Member.

Significance:
Regional. The site is a clear display of the thickness of non-marine gravels at the base of the Maude Formation.

Management:
Class 2. Maintaining the site in rural land use will protect the significant sections.

References:
Bowler JM (1963)
CC BY 4.0 AU

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