Monday, November 28, 2005

The Victorian landscape in the Early Cretaceous.

There are mountain ranges on both sides of the central rift valley. The streams flowing out of these ranges have built alluvial fans along the foothills. Volcanoes are active in the distance. Eruptions of these volcanoes supplied the ash and cinders deposited by the large braided river system flowing through the rift valley.

Growing on the hills are tall pine trees (1) and shorter pentoxylalean trees (2), with a small plant-eating dinosaur (3) running underneath them. It is mid-summer, so the snow on the mountains has all melted. After the flooding caused by the snow melt, the water levels in the braided river system have dropped. There are occasional tree ferns (4) on the sandbanks between the river channels. Clumps of Phyllopteroides ferns (5) are growing on the banks of the channels.

Extract from a GSAV (Geological Society of Australia, Victoria Division) booklet 'Geological History of Victoria'. Unfortunately this booklet appears to be out of print.

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