Scratches?

• by cornmill

  This looks like two surfaces have been rubber together in one direction to form scratches. Any ideas

  Posted February 5, 2013 12:42 PM

• by Kitharode moderator

  Hi Cornmill. You're probably getting into 'yardang terrain' here, but it's not really my thing so I can't say much about it. This thread is related and might give you a start http://talk.planetfour.org/#/boards/BPF0000002/discussions/DPF0000acn

  Posted February 5, 2013 1:15 PM

• by Kitharode moderator

  http://blog.planetfour.org/ Part way down the page...

  Posted February 6, 2013 1:58 PM