Friday fold: limestones of the Silurian, Corridor H

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For the Friday fold, let’s journey back to the Silurian, as exposed in the limestones of that age that were deformed during Alleghanian mountain-building (Pennsylvanian and Permian), and exposed along Corridor H in eastern West Virginia.

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Some buckling (cuspate-lobate form) seen in that one…

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A little pop-up with hinge collapse:

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And, finally, as a digestif, consider this little morsel:

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That’s a bite-sized Friday fold.

Have a good weekend!

0 thoughts on “Friday fold: limestones of the Silurian, Corridor H”

  1. Hi Callan,

    I’ve really enjoyed the posts about Corridor H. I drive it often to Canaan Valey or points between. I seem to remember reading on either your blog or another geology blog some comments about an ancient river bed that can be seen in one of the road cuts. My son and I have tried to find it several times driving to Davis, but have been unable to do so. I’m wondering if you could provide some specific directions (GPS coordinates?) that would allow us to find it. I’d greatly appreciat it.

    James

    Reply

    • Hi James,
      I’m not sure which specific “ancient river bed” you’re referring to – that phrase could mean a lot of things – but there are some nice channel cross-sections at this outcrop (follow geolocation link for map showing the site):
      http://www.gigapan.com/gigapans/97287
      Good luck – that’s one of my favorite outcrops. Tons of primary and secondary structures to be seen.
      C

      Reply

      • HI Callan,

        Thanks for the response. For some reason I thought I had read about what I’m looking for on your blog. However, this afteroon, after doing some more searching, I realized I had read about this on a blog called Not Necessarily Geology. I’ve posted link below in which the writer refers to ‘an ancient stream bed’. This is the structure my son and I have been trying to identify every time we drive along Corridor H. I was hoping you might know the location of this feature. Again, I really enjoy these Corridor H posts. My son and I have been discussing the features and can’t wait to drive along the road to examine some the features you’re discussing. We’ve found lots of fossils along Corrido H, so it’s good for that as well. Kids loves fossils.

        http://notnecessarilygeology.wordpress.com/2010/05/12/structural-geology-trip-part-5-wv-rt-55/

        Reply

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