This information has been developed from the publications:
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Location: | 940181. Limestone Road between Limestone Creek and Native Dog Plain. | |
Abstract: | Type section for Thorkidaan Volcanics. | |
Access: | Limestone Road. | |
Ownership: | Crown Land. | |
Geology/Geomorphology: | Road cutting along Limestone Road display the range of rock types included in the Thorkidaan Volcanic Group. Phyolites predominate although ryhodacites are not common. The Volcanics are quite variable in appearance, but most contain phenocrysts of embayed quartz, altered felspar and occasionally biotite. Interculations of tuff are rare although a large ruff band outcrops near the head of Painter Creek. This shows prominent reverse grading suggesting that the tuffs are waterlain tuff ash full deposits. The reverse bedding is due to the delayed settling of the larger vesicular fragments due to the slowness with which they became waterlogged. | |
Significance: | Regional. Type site of the extensive Thorkidaan volcanics. | |
Management: | Maintenance of clear exposures in the road cuttings would enhance the quality of the site. | |
References: | Vandeberg, A.H.M., Bolger, P., O'Shea, P.J. 1980. (in press) 'Geology and Mineral Exploration of the Limestone Creek-Reedy Creek Area, North-East Victoria', Geol. Surv. V |