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9 October 2020

Friday fold: Torcross

Looks like we’re sticking with the U.K. for Friday folds, for the time being… This lovely beast comes to us from Torcross, via Danny Stubbs, who shared it on Twitter this past week. That’s from the Meadfoot Group of slates, cross-cut by quartz veins. In this follow-up image, Danny shares that sometimes the quartz veins have enjoyed some folding too: Happy Friday to all.

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2 October 2020

Friday fold: Northumberland

For the Friday fold this week, we travel to Northumberland, U.K. for this beautiful fold pair: Robert McKibbin posted this image on Twitter this week, and graciously allowed me to feature it here. Thank you Robert! Happy Friday to all.

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11 September 2020

Friday fold: Boscastle, Cornwall

A hilly region of Cornwall, U.K. features beautiful folding, and a fuzzy field assistant!

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29 January 2019

The Parallel Roads of Glen Roy

What can we learn from Scotland’s Parallel Roads of Glen Roy?

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1 March 2018

A GIGAmacro view of a cool outcrop in Scotland

As noted previously, the old way of viewing gigapixel imagery is no more. But there is a new, better way. The GIGAmacro company has a better viewing platform that can be used either with images uploaded to their server or  with pre-existing images that currently “live” at GigaPan.com. Here’s an example: a roadcut of limestone of the Grudaidh Formation (Durness Group) in the Northwest Highlands of Scotland, near Ardvreck Castle, …

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2 February 2018

Friday fold: 3D model from the Portsoy Shear Zone

The Friday fold is a really cool 3D model of differentially-weathered calc-silicate rocks in Scotland that were folded during the Caledonian Orogeny.

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3 January 2018

The Old Man of Hoy, a sea stack in Orkney

A sea stack on the west coast of Orkney showcases Devonian sedimentary strata and implies terrific storm waves in its geomorphology.

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An odd mystery rock from Shetland

Any readers have any idea what this strange rock is? It’s got wild patterns! These samples were in the garden of a local rockhound in Lerwick; I have zero idea what the mineralogy is; I was just stunned by the “scale-like” pattern of gray and pink. I’d be eager to hear your ideas what this might be. Thanks very much in advance!

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1 June 2017

The geology of the Yesnaby coast, Orkney

Ahhhh, a raw Scottish coast. …Let’s go there. There’s sedimentology to be learned here, and coastal geomorphology to be ogled. This is Yesnaby, on the west side of Orkney. The rocks there are part of “the Old Red Sandstone,” a neat package of Devonian strata, flavored here and there with an igneous dike, a fault, etc. But overall, I’d like to focus on the strata. The strata I saw at …

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3 May 2017

Storm beaches have I loved

The answer to yesterday’s geo-puzzle is revealed to be a storm deposit of boulders, 20 m above sea level!

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