Tag Archives: photography

(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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U-shaped Hanging Valley near Spiez, Switzerland

A U-shaped hanging valley photographed on the train between Spiez and Interlaken, Switzerland. This is the classic shape of a glacier-cut valley (as opposed to V-shaped valleys, cut by rivers, or Y-shaped, cut by rivers, uplifted, and cut again). The … Continue reading

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Ice Crystals at Sunset

My flight was mostly over clouds, and mostly during a perpetual sunset, so I did very little airplane geomorphology. Instead, I spent hours mesmerized by the stretching and bending of light by the atmosphere (with a brilliantly red sunset) and … Continue reading

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Air Photo Geekiness

I love air photo interpretation. It’s amazing how much information you can get out of looking at pictures, and seeing things in hyperstereo makes me feel like a towering Godzilla looking down on a miniaturized landscape. I am absolutely gleeful … Continue reading

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Rangitoto Island, New Zealand

Rangitoto, New Zealand is the youngest and largest volcano in the Auckland Volcanic Field. With a final eruption at least 600 years ago, the volcanic island is slowly weathering into soil. The rate of weathering is increased both by rainfall-watered … Continue reading

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Dual-Scale Weathering

The landscape of rounded boulders at Joshua Tree Park, California, are the legacy of weathered bedrock. As overlaying material is eroded away, the release in pressure leads to exfoliation — shedding the crust of weathered rock. On a much shorter … 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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Basalt Cobbles & Onion Skin Weathering

At Settlement Point east of Melbourne, extensive basalts and tuffs of the Older Volcanics form the cliffs and shore platforms. The spherical weathering occurs as water penetrates along joints and fractures, decaying the rock layer by layer like onion skin. … Continue reading

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Squeaky Sand on the Friendly Beach

The white sands of Friendly Beach, Tasmania, Tasmania, squeak under every step. The sand is nearly pure silica, originating in quartz-baring rocks, eroded into sand, compacted into sandstone, and re-eroded into fine, smooth, rounded grains. The black rock shore platforms … Continue reading

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