Sunday, 4 November 2007

More oily puddles

Puddles in the Tasmanian bush often have an oily film. I've put up a photo before. It is (generally) not pollution, but is an iron oxide film caused by water interacting with the iron in the dolerite rock. This example in a muddy spot was particularly noticeable.

Iron oxide film in puddle, Hartz Mountains - 3 Nov 2007

No comments: