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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...
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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...
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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...
View ArticleAir 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...
View ArticleGuest Lecture: Australian Coastal Geomorphology
‘Tis the season to be talky! I’m giving another talk next week — a guest lecture on Australian Coastal geomorphology. I’ll be talking about the processes that create coastal landforms, and showing lots...
View ArticleNatural Hazards in southern British Columbia
The interaction of strong north-south geomorphic obstructions and a low population density dominate the risk assessment for British Columbia. The north-south mountain ranges and valleys place severe...
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U-shaped Hanging Valley near Spiez, Switzerland
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...
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Fly-By Geomorphology: U-Shaped Valley
Glacial Valley: glaciers cut U-shaped valleys with walls and wide, gently-curved floors. The topography is rounded below the (former) iceline, while sharply jagged above the (former) iceline. In the...
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Fly-By Geomorphology: Meander Scrolls
Meander Scrolls: rivers erode along the outside of turns, depositing material on the inside. Over time, the river shifts, leaving behind meander scrolls.
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Fly-By Geomorphology: Kitsault River
I’ve been flying over the Kitsault River a few times a day for three weeks. The last 24+ hours of rain increased the sediment load, changing the river from clear blue to muddy brown. The water level...
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