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15 May 2020
Friday fold: Argentinian turbidites
Zoltán Sylvester brings us this Friday’s fold: And there’s more where that came from: These are deepwater strata of the Lower Cretaceous Rio Mayer Formation, exposed near Lago Argentino, Argentina, south of the lake’s northwest “arm,” about here. They were deformed so exquisitely during Andean mountain-building. Zoltán is a talented photographer, and you should check out more of his work here.
29 January 2019
The Parallel Roads of Glen Roy
What can we learn from Scotland’s Parallel Roads of Glen Roy?
6 August 2014
Guest post: Glaciolacustrine deltas in the Canadian Rockies
One of Callan’s “Canadian Rockies” field course students supplies a guest post about deltas that build out into glacial lakes.
10 December 2013
The trail to Crypt Lake
Today, I’d like to share some images with you from Waterton Lakes National Park in Alberta, Canada. This is the Crypt Lake hike, a popular (but grueling) hike in the park. It starts at the Waterton Marina, across Emerald Bay from the Prince of Wales Hotel. Mount Crandell and the Bear’s Hump are visible in the distance. This image can be made much bigger if you click on it. Click …
16 October 2012
Plane views: Leftovers
14 August 2012
My new favorite pater noster lake photo
Photo by Stephen Smith Alderson / Carthew lakes / summit area, depending on who you ask. Waterton Lakes National Park, Alberta.
5 July 2012
Floe Lake hike
Last summer, my wife and I spent some time in the Canadian Rockies. One of the things we did was to take a three-day backpacking trip to Floe Lake, in Kootenay National Park, British Columbia. We picked a rough couple of days for hiking – We got a lot of Canadian Rockies precipitation out there: we got rained on, hailed on, and snowed on during those three days. Here’s our …
22 March 2012
Here are some photos out the window of my flight home from California the week before last… Snow on the north sides of mountains, but not on the south sides (view is from the south towards the north): Same thing here: And again… And again… it would appear that our route from Reno to Minneapolis had us routed over the northern hemisphere! Variation on the same theme: light-colored sand deposits …
8 August 2011
Climbing Darton Peak
Callan embarks on an exhausting climb of a major summit in the Wyoming Bighorn mountains, a peak named in tribute of one of his geological heroes. Come join the trek to the top of Darton Peak!
5 July 2011
Varves from Yellowstone Lake
The other day, driving south through Yellowstone on our way to the Tetons, I stopped to give my students the obligatory look over Yellowstone Lake’s West Thumb, looking east towards the snowcapped Absaroka Range in the distance. But in addition to a lovely view and a few birds, we found something really cool… Those are varves, seasonally-laminated couplets of sediment (light = summer; dark = winter) that are made of …