12. Boolarra Ordovician Inlier

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 on the Coast of Port Phillip Bay and in the Catchment of Westernport Bay (1984, 88) by Neville Rosengren.
Sites of Geological and Geomorphological Significance in the South Gippsland Marine and Coastal Parks (1989) 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 link) section of the Geological Society of Australia website for details of geological heritage reports, and a bibliography.

Location:	397523. Four kilometres east of Boolarra along Sassafras Creek.	Site 8121-12
Access:	Halls Road off Midland Highway.
Ownership:	Private Land.
Geology/Geomorphology:	Very restricted outcrop of sandstone, shale, and breccia in the Sassafras Creek area has, on the basis of graptolite fossils, been defined as a faulted inlier of Lower Ordovician sediments.
Significance:	Regional. This is the only exposure of Ordovician sediments in the main body of the Strzelecki Group.
Management:	The outcrop is very poor and road cuttings could provide new exposures of the Ordivician. However, the construction of even small farm dams in the creek channel would obscure the available outcrop.
References:	Keble, R.A., 1920. Some subzonal forms of the Lower Bendigo and Upper Lancefield zones. Rec. geol. Surv. Vict., 4.pp. 195-202. Thomas, D.E., 1939. The Structure of Victoria with respect to the lower Palaeozoic rocks. Min. geol. J. Vict., 1(4), pp. 59-64.

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