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| Jurassic |
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Giant rock: Giant Rock, a plug of altered trachyte of the Jurassic Coleraine Volcanic Group, north of Coleraine.
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Lamprophyre: Lamprophyre from Christmas Reef, Wedderburn, with phenocrysts of phlogopite.
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| Cretaceous |
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Otway fault: Fault marked by breccia, within the Early Cretaceous Otway Group. Castle Cove.
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Otway Gp flames: Flame structures (top) and small normal faults (bottom) in sandstone of the Otway Group, Castle Cove.
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| Palaeogene |
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Monocline: Monocline in the Waurn Ponds Limestone Member of the Jan Juc Formation (Oligocene to Miocene) at Waurn Ponds.
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Loch Ard Gorge: Oligocene-Miocene Port Campbell Limestone in Loch Ard Gorge near Port Campbell.
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12 Apostles: Oligocene-Miocene Port Campbell Limestone exposed in the Twelve Apostles.
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Bogong: Mt Bogong (left) and the Bogong High Plains (right) were uplifted along the Tawonga Fault in the Palaeogene. The fault scarp runs along the edge of the cleared alluvium in the middle ground.
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| Neogene |
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Burrumbeet boulder: Newer Volcanics scoria deposit on Lake Burrumbeet. The explosive eruption threw out boulders of Palaeozoic granite picked up from the basement, as well as small bombs of basalt and mantle xenoliths.
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Trentham Falls: Neogene Newer Volcanics basalt at Trentham Falls, showing columnar jointing.
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Wannon Falls: Wannon Falls at the head of a gorge cut into Miocene Newer Volcanics basalt.
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| Quaternary |
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Bridgewater: Pleistocene Bridgewater Group consisting of cross-bedded dune limestone. Mouth of Wye River.
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Byaduk: Church Cave at Byaduk. This cave formed when the roof of a lava tunnel collapsed. The lava flow emanated from Mt Napier.
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Lake Gnotuk: Lake Gnotuk, a maar near Camperdown. Several scoria cones can be seen on the horizon to the north.
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Red Rocks: Small maars of the Red Rocks maar complex, with Lake Corangamite in the background.
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