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Showing results for tags 'ironstone concretion'.
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British Dinosaur footprints
Brevicollis posted a topic in Is It Real? How to Recognize Fossil Fabrications
Hello, ive seen many of those british "dinosaur footprints" from Sussex and wondered if they're real casts that formed naturally or just funny shaped stones that someone interpreted a Dino-footprint in. In case you dont know what im talking about : The bottom one was identfied as ankylosaurid, all others werent identfied. If someone knows if theyre real or not, or if there are some scientific papers about them that you can link in the replies, Thanks ! -
Hi I found this Ironstone Concretion. I'm not sure what is the marking on it any help would be appreciated. It is large piece about 14-15 inch high and about 10" wide. Found In Middle Ga. Thank you.
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Hey guys, Forgive me for my lack of knowledge when it comes to this subject, but I was recently hunting through some shale piles at Florissant when I found an ironstone concretion, unattached to any shale. It feels lighter than most stones of the same size. It was really bizarre, and when I asked one of the owners about it she said it was a 'fireball' thrown from the Guffey Volcano. This was strange to me because the fireballs that I am used to seeing are the chunks of pumice in the shale. Here is one from my own collection: Here's a close up showing the little black bits of volcanic glass (?) in it. For comparison, here is the ironstone concretion with what looks like tephra showing from a crack in the nodule. To simplify my question(s), what is the difference between these two 'fireballs', what are they made of, why the difference in preservation? If they aren't fireballs, what are they? I'm really interested in this and I hope you guys can shed some light on it. Any additional info is appreciated, I'm anxious to learn more! As always, thank you, I'm very grateful for your informative responses.
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I hope this is the place to learn some knowledge. My husband works in a quarry in Devon and after a blast has come across these four beautiful giant concretions? Which were in a pocket together. I would be interested to know what they are made of. We have washed the one which was the smallest - the only one he could carry -the colours seem to be very red with some orange. There is also another which is around 1.2meters across which we will be adding to our set. I would be interested in any information regarding our new found rocks
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The front, back, side and bottom of whatever this could be? I could not find anything to measure it with but for now hopefully the pictures alone help for the meantime. The shape of it reminds me of a bone for some reason so that's my guess as to what it could be; not quite sure of what this texture on it is though, i scraped a bit of it off fairly easily and it was dusty brown coming off of it, but not too hard when scraping the surface it barely had any resistance. I tried scraping the exposed part of my other find; the iron concretion to compare the 2 and the concretion was much more durable on it's exposed part to try ruling out if it is just another ironstone concretion. It was found in the same brook called "big brook preserve" in central new jersey in the united states. Another possibility that I've came up with is that this find might be a concretion but not nearly as old and formed yet. Right now it could be anything. Thank you to whoever responds and helps with this post; very much appreciated.
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