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8223-7 Black Soil Gully - Former Course of Macalister River

This information has been developed from the publications:

    • Sites of Geological and Geomorphological Significance in Central Gippsland (1981) by Neville Rosengren, M.S McRae-Williams and S.M Kraemers.
    • Sites of Geological and Geomorphological Significance in the Gippsland Lakes Catchment (1984) by Neville Rosengren.
    • Sites of Geological and Geomorphological Significance in East Gippsland, Victoria (1981) by Neville Rosengren, M.S McRae-Williams
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:
600520. The site includes parts of the valley of the Glencairn Creek and extends for 6 kilometres north from Glencairn.

Access:

Glencairn Road.

Ownership:

Crown Land and private land.

Geology/Geomorphology:

The Glencairn Creek and Macalister River are separated by a north-south trending strike ridge, of Avon River Group Sediments. Whitelaw (1916) interpreted the Black Soil Gully and Glencairn Creek valley to be a former course of the Macalister River. This valley was abandoned when the Macalister was diverted to the east at its junction with the Caledonia River. The new stream has lowered its valley floor by over 150 metres below the level of its former course.

Significance:

State. This is an unusual example of stream diversion. The reasons for the deflection of the Macalister have not been investigated in detail, although Whitelaw (1916) suggested it was "probably .......... the result of a landslip".

Management:

Reservoir construction that would flow either of the main valleys of the site should not be permitted.

8223 7
Old and new courses of the Macalister River at Glencairn Creek and Black Soil Gully (from Whitelaw, 1916)
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