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24 May 2019

Friday fold: Riffelhorn (+xenolith)

Naomi Barshi shares this “deskcrop” Friday fold… Naomi says she found this fold: near the Riffelhorn, Gornergrat, above Zermatt, Switzerland. The sample has befriended my other show-off sample of a mantle xenolith from San Quintin, Baja California. Thanks for sharing, Naomi! The xenolith is a nice bonus!

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8 March 2019

Friday fold: Dent de Morcles

The Friday fold is a recumbent anticline/syncline pair, deforming the K/Pg boundary in the Swiss Alps, as photographed from the air by Bernhard Edmaier.

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22 February 2019

Friday folds: Sardinian tuff

It’s the last day of the work week. Some photos of isoclinal syn-depositional folding in Sardinian tuff will get your Friday off on the right foot.

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14 February 2019

Friday fold: an arch of gypsum in Sicily

Ahh, Sicily on a Friday morning. Join us to examine a spectacular arch of gypsum from the Messinian evaporite package.

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8 February 2019

Friday fold: Falte an der Riedbergpaßstraße im Allgäu

A Friday fold from Germany showing an overturned sequence of sedimentary layers. Bedding / cleavage relationships show which limb is tectonically inverted. Furthermore, this fold was an “Aha!” moment for the budding geological mind of a small boy.

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21 December 2018

Friday fold: Samaria Gorge, Crete II

The Friday fold is a guest submission from AGU’s new Chief Digital Officer, and shows a spectacular set of recumbent folds in Crete.

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16 November 2018

Friday folds: more deformation from Cinque Terre, Italy

A return to coastal Italy on this wintry Friday… You’ll recall that The Other Callan shared some fold imagery with us a few weeks back as he explored the Cinque Terre region of Italy. He is back in the States now, and has been kind enough to share his geology-themed photos with me, so I can share them with you. Take a gander: Several people more familiar with these rocks …

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2 November 2018

Friday fold: Refolded marble from Corsica

The Friday fold comes to us from Corsica via University of Washington structural geologist Darrel Cowan. It’s a marble that’s been folded *twice!*

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5 October 2018

Friday fold: Vernazza, Italy

For this Friday’s fold, we must journey to the storied Cinque Terre coastline of Italy, where we will encounter some mysterious turbidites…

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31 August 2018

Friday folds: Rifugio Fontana in the Dolomites

TGIF: “Thank Geology It’s Friday!”
Time for a fold or a dozen – let’s travel to the Italian Dolomites to see some kinky crumpled limestones…

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