The closest volcanic activity to Mt Wingen that occurred after formation of the coal seam is that responsible for the Liverpool Range Basalts, less than 5 kilometres (3 miles) to the north and to the west18 The same basalts are found to the north-east of Mt Wingen also. But these basalts have been dated using the potassium-argon radioactive method as 38 million to 41 million years old.19 Today they cover an area of approximately 6000 square kilometres (almost 2,620 square miles) and are in places up to 800 metres (over 2,600 feet) thick, so they represent an enormous outpouring of molten lavas.20 Thus it seems likely that these small intrusions of similar composition in the nearby Mt Wingen area are related to the same volcano and volcanic event. Indeed, there are intrusive rocks of related composition and the same age about 80 kilometres (49.5 miles) to the south,21 and other intrusives about 20 kilometres (12.5 miles)22 and 50 kilometres (31 miles)23, 24 to the south, so volcanic activity has been widespread through this region.
However, this would imply that if this intrusive rock at Burning Mountain is supposedly 38 million to 41 million years old, then it must have ignited the coal seam at that time. This is clearly impossible, for we have seen that observational evidence in the present is only consistent with the coal having been burning for less than 6000 years. Consequently, if this intrusive rock ignited the coal then it cant be millions of years old.
From this article by Andrew Snelling
http://www.creationontheweb.com/content/view/880
What model of origins best fits the evidence presented in this article - YEC or Evolution?