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1254 Views 2 Replies Last post: Dec 6, 2013 9:32 PM by MikeHardman RSS
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Dec 6, 2013 3:33 PM



Thanks for help!

I`ve got new specimen that I would be grateful if you could help me to identify it.

Pictures below ...looks like stromatolite to me

amberuuuu 020.JPGamberuuuu 022.JPG

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    Dec 6, 2013 3:50 PM (in response to 1bear)
    Re: fossil?stromatolite?

    Don't think it is a stromatolite or any fossil,  but I'm not sure what type of rock it is: maybe limestone.

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      Dec 6, 2013 9:32 PM (in response to Dan)
      Re: fossil?stromatolite?

      This is laminated siltstone showing small scale slump structures of a type generally called convolutions, or (in more extreme cases) 'ball and pillow' structure. Such structures occur on a range of scales, and are quite common. I have seen them in Spain, Ireland and several parts of the UK.


      Your specimen may also have been slightly deformed tectonically (the bend in the middle).


      Stromatolites can have a somewhat similar apperance, but you'd need to be in an appropriate geological terrain.



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