Tag Archives: dunes

(non-disaster) Geoscience items I linked to on various social media platforms: It took getting stuck in the Terrace Airport for me to finally discover the Earth Science Picture of the Day Singing sand dunes, paired up with Martian sands in … Continue reading

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Paleodunes at Barwon Heads

The bluffs of Barwon Heads are aeolian calcarnite — solidified sand dunes. As rain fell on the sand dunes, the top surface is cemented as calcrete. More dunes formed on top, and more, and more, with layers of hardened calcrete … Continue reading

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The Beach of Wonthaggi

Coastlines are landscapes of constant change. Near Wonthaggi, Australia, the shore is stabilized by extensive rock platforms and high rock-cored sand dunes. Small erosion patterns etch into the sand as the ebbing tide drains off the beach, and a river … Continue reading

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