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Top Trilo

Questions about Petrified Wood

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Top Trilo

I found all these pieces in arapahoe county Colorado. I’m not sure where I found #2 just in Colorado. I polished a couple of them, 10-16. Is it possible to determine type of wood or approximate age?

 

8E761193-62BE-4FBE-9F0B-1A6E031066E3.thumb.jpeg.f316684dcfd92b703fada01f5218f295.jpegB4C8A308-6133-4A81-AD82-C04179D32C85.thumb.jpeg.15ade966a0c252dec217e61ce453f570.jpeg

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FossilsandScience

If you have the formation information we can tell the age and possibly the species. If not, it's pretty hard to determine. Those pieces have some nice colors!

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Top Trilo

PALAEONTOLOGY[online] | Article: Patterns in Palaeontology > Patterns in  Palaeontology: The Real Jurassic Parkimage.png.6843cafc027d64201f271f6b0f5c3ef5.png

It might be the morisson formation seeing as it covers all of colorado, almost. When I use this more zoomed in geologic map it says alluvium 1 (holocene)

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FossilsandScience

If you know the exact (or general) location you found the wood, download either Mancos or Rock'd and check the formation at the location just to confirm. I don't want to give you false information until we have the confirmed formation!

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Top Trilo
13 hours ago, FossilsandScience said:

Mancos or Rock'd

Where can I find these?

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FossilsandScience

I downloaded them both on the Apple Store. I'm not sure if they are on Android though. You can also visit rockd.org and click "explore the data" which will bring you to a map. Find your location that you found the wood and then simply click on it and it should show you information. 

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Top Trilo

I went to rockd.org and clicked explore the data. This is what came up when I clicked the exact locations of themimage.png.deebeb912eb774a279361802dab81894.png

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FossilsandScience

Cool! As you can see, the age is on the pictures you posted above. I'm not sure about the species of the tree because I can't find much info on it. You have some very awesome chunks of petrified wood! :Smiling:

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jpc

to truly ID the wood, you need to cut the wood along three axes, x, y and z, then polish the cuts and compare your specimens to kn own woods from the Dawson Arkose, or other formations close in time.  It is a LT of work, which is why most wood you see is simply IDed as simply petrified wood.  Palm wood, on the other hand has very distinctive cross section... no tree rings.  

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Top Trilo

Ok thanks, knowing the age is already a step up from where I was before.

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