TV1 Little Bullengarook (Fairies Hill) - Eruption Point

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 section of the Geological Society of Australia website (external link) for details of geological heritage reports, and a bibliography.

Location	Toolern Vale - 803457. Former Shire of Gisborne. East of Little Bullengarook 7 km southwest of Gisborne.
Access	White Road off Gisborne - Bacchus Marsh Road.
Ownership	Private land and some Crown land.
Site Description	The eruption of Little Bullengarook buried gravels and sands developed in stream valleys and on valley side slopes. Subsequent dissection of the lava flows has revealed the base of the lava and the underlying gravels, many of which have been hardened by cementation by silica precipitated from groundwaters. Along the eastern sides of Little Bullengarook and at the head of Dunns Gully to the south, the contact between the lava flows and the silicified gravels is exposed.
Significance	Regional. The site display lithology and geological contacts important in determining the chronology of the lava flows and the nature of the pre-basaltic terrain.
Management	Class 3. Continuation of land use in agriculture, forestry or catchment protection will maintain the significance of the site.
References	Crawford, W. (1939). The Physiography of the Gisborne Highlands. Proc. R. Soc. Vict. 52:262-279.

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