0 thoughts on “Friday fold: contorted Sivrihisar marble”

  1. Lovely photo of amazing folding, but PLEASE don’t use coins as a scale – I don’t know what coin that is and so have no idea if it is massive or tiny. For your field trips, you really should have a scale bar with both inches and centimetres shown (and measurement units clearly indicated, ie ‘ins’ and ‘cm’ so the casual viewer knows what is what.) Thanks.

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  2. Beautiful. Did they interpret that as a sheath fold? A refolded sheath fold?

    (I joked about doing a google image search for “folds” during structural geology exam review today, so if my students find this blog and read the comments: I’m not using this photo – it’s complicated!)

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    • Hi Kim,
      This is one I found on my own. “They” (the field trip leaders) weren’t explicitly into structure, and they basically turned us loose on the landscape at this location. Yes, I interpreted this (and others) as small sheath folds. This marble apparently turned to soup.
      C

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  3. Well, coins, are always and almost of the same size, plus and minus of course, i have travelled many countries and have not come across any country has a coin of 2 inches, most coins are less than 2 inches. And i am amazed by the suggestion of a “massive” coin.

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