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Still_human

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1 hour ago, Still_human said:

Thanks so much you guys, I'm so happy you got it working again! Those are absolutely mind blowing! Even knowing that's how they actually look, my mind just CANT see them as being really like that!

 

They are cool in a way, but really, they just make my eyes hurt. :rolleyes: 

    Tim    -  VETERAN SHALE SPLITTER

   MOTM.png.61350469b02f439fd4d5d77c2c69da85.png      PaleoPartner.png.30c01982e09b0cc0b7d9d6a7a21f56c6.png.a600039856933851eeea617ca3f2d15f.png     Postmaster1.jpg.900efa599049929531fa81981f028e24.jpg    VFOTM.png.f1b09c78bf88298b009b0da14ef44cf0.png  VFOTM  --- APRIL - 2015  

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"In every walk with nature one receives far more than he seeks."

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On 10/26/2018 at 4:41 PM, Fossildude19 said:

 

They are cool in a way, but really, they just make my eyes hurt. :rolleyes: 

Hahaha yes! they kinda do, don't they?! At least feel weird...like my vision wants to stretch to compensate, or something:faint:. Im sure my eyes would believe it in person(in fossil), but it just doesn't want to on here.

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On 10/26/2018 at 3:45 PM, ynot said:

When rock is subjected to pressure or heat it becomes more elastic. This will allow it to be deformed.

:doh!:

Ahh, thank you!

It seems so simple! I'm surprised it's not a much more common phenomenon.

Would pressure by itself do it, without actually breaking it, without the heat? Or I guess the pressure by itself would create the heat, wouldn't it?

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image from : R.A.Cooper:interpretation of tectonically deformed fossils.

Needless to say that if you taxonomy is based on considerations of size and/or shape,you'd better retrodeform your fossil .

Particulary graptolite systematics can be plagued by the effects of slight deformatiom,which changes thecal spacing and angle of the thecal aperture

 

 

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  • I found this Informative 1

 

 

 

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