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GL44 (8321) North-Western Shore of Lake Wellington

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:218865 (8321). One kilometre south of jetty.
Image: East Gippsland Sites of Significance
Marlay Point.
Sandy 'levee' deposits (A)
Phragmites (B)
Eroding shoreline of floodplain and levee deposits (arrowed)

Abstract:
Eroding shoreline; sandy ridge (possibly from river levee).

Access:
Clydebank jetty road.

Ownership:
Private land.

Geomorphology:
West of Lake Wellington is an extensive alluvial plain with remnants of former river channels and low sinuous sandy ridges that extend north of Marlay Point to the shoreline of the lake. The ridges are possibly former levee banks capped by Aeolian sands and road cuttings along the Clydebank jetty road display sections in this material.

Erosion is predominant south of the jetty although the rate of shoreline retreat is uneven. The most rapidly eroding sectors are in the fine grained sediments of the alluvial plain - the sinuous sandy ridges project as small promontories into the lake. Phragmites persists only on one small sector of the shore where grazing has been excluded.

Significance:
Regional. This is an exposed shoreline which displays the erosive effect of waves generated across a long easterly fetch. The small area of Phragmites illustrates the role of grazing pressure on reed swamp die-back.

Management:
Continued exclusion of grazing from the Phragmites area would allow further assessment to be made of the impact of grazing.


GL 43 op 46
Sites GL43-46

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