Port Douglas Rocks 38

Colour and texture, possibly showing evidence of extrusive volcanic activity, in a rock outcrop near Four Mile Beach in Port Douglas

Port Douglas Rocks 38 – Colour and texture, possibly showing evidence of extrusive volcanic activity, in a rock outcrop near Four Mile Beach in Port Douglas, Queensland, Australia. I wonder if this is agglomerate, which is a type of composite rock made up of fragments larger than 20 mm, thrown out by a volcano during explosive eruptions.

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