Jurassic Rock
The rocks that formed the Cataract Gorge are mainly Dolerite from the Jurassic era (180 million years ago). In fact most of Tasmania is Dolerite rock, which was produced during a period of extreme volcanic activity. For those interested, this article will give you all the available information about the geology of Tasmania.
en.wikipedia.org/wiki/Geology_of_Tasmania
But the Cataract Gorge is specifically a fault line caused some 80 million years ago from a series of massive earthquakes. In the following article Geologist Peter Manchester explains what happened.
www.abc.net.au/local/photos/2015/09/02/4304727.htm
PHOTO NOTE: This is a black and white image colourised using colour toning. They are not the natural colours, but an artistic impression. I am finding experimenting with these older techniques (albeit using digital technology) really interesting and artistically liberating from the tyranny of ordinary appearances. Traditional black and white is great at getting us to see things in tones. But colour toning allows for truly impressionistic photography.
Jurassic Rock
The rocks that formed the Cataract Gorge are mainly Dolerite from the Jurassic era (180 million years ago). In fact most of Tasmania is Dolerite rock, which was produced during a period of extreme volcanic activity. For those interested, this article will give you all the available information about the geology of Tasmania.
en.wikipedia.org/wiki/Geology_of_Tasmania
But the Cataract Gorge is specifically a fault line caused some 80 million years ago from a series of massive earthquakes. In the following article Geologist Peter Manchester explains what happened.
www.abc.net.au/local/photos/2015/09/02/4304727.htm
PHOTO NOTE: This is a black and white image colourised using colour toning. They are not the natural colours, but an artistic impression. I am finding experimenting with these older techniques (albeit using digital technology) really interesting and artistically liberating from the tyranny of ordinary appearances. Traditional black and white is great at getting us to see things in tones. But colour toning allows for truly impressionistic photography.