Hello all,
These are just a few 'weird to me' rocks that I thought I'd share. Nothing spectacular really. I'd like to know what a few of them are, since I've never found any other like them around here. I hope the photos show up in the order I explain here:
First set: Found this in a creek. First 'embedded anomaly' I've found like this. It looks like a bullet shot through a piece of limestone or something. Pretty interesting.
Second set: Found along Cedar River. I can't decide whether this is a fossil or otherwise. If anyone can offer their opinion on how it might have formed this way, go ahead.
Third Set: I found this about the same area as the previous. I've never seen anything like it, except for a much larger specimen which to this day I have no idea why I didn't retrieve it 'then'...I went back to that area so many times to try to find it buried in the sand to no avail. I know about where it is, but it might take some digging...and the weeds have overgrown the area pretty bad too. Anyway, I don't know how this thing was formed. The little nodules all over it are pink and green in the center...the rest of the rock is a purplish color. No clue.
Fourth Set: These I 'think' are hematite concretions? There were piles of dirt from deep down, say six feet down that were left on the side of the road. I frequented the piles and found some interesting things and kept finding these. I always thought they might have been formed by crustaceans burrowing in the submarine silt because they all have an arched tunnel formation to them...it just seemed too 'regular' to be a concretion...but what do I know? If you have any ideas, I'm open to hear. Nonetheless, they're not a hot topic I'm sure. I just like knowing what I find in the end.
All rocks found in East/Central Iowa in land of the Silurian/Devonian age.
Thanks for looking!
These are just a few 'weird to me' rocks that I thought I'd share. Nothing spectacular really. I'd like to know what a few of them are, since I've never found any other like them around here. I hope the photos show up in the order I explain here:
First set: Found this in a creek. First 'embedded anomaly' I've found like this. It looks like a bullet shot through a piece of limestone or something. Pretty interesting.
Second set: Found along Cedar River. I can't decide whether this is a fossil or otherwise. If anyone can offer their opinion on how it might have formed this way, go ahead.
Third Set: I found this about the same area as the previous. I've never seen anything like it, except for a much larger specimen which to this day I have no idea why I didn't retrieve it 'then'...I went back to that area so many times to try to find it buried in the sand to no avail. I know about where it is, but it might take some digging...and the weeds have overgrown the area pretty bad too. Anyway, I don't know how this thing was formed. The little nodules all over it are pink and green in the center...the rest of the rock is a purplish color. No clue.
Fourth Set: These I 'think' are hematite concretions? There were piles of dirt from deep down, say six feet down that were left on the side of the road. I frequented the piles and found some interesting things and kept finding these. I always thought they might have been formed by crustaceans burrowing in the submarine silt because they all have an arched tunnel formation to them...it just seemed too 'regular' to be a concretion...but what do I know? If you have any ideas, I'm open to hear. Nonetheless, they're not a hot topic I'm sure. I just like knowing what I find in the end.
All rocks found in East/Central Iowa in land of the Silurian/Devonian age.
Thanks for looking!
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