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Showing results for tags 'iron'.
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Still learning my formations. Found these close to the bottom of the Dakota Sandstone formation in Kansas.
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Below are 2 items found on the same day after a few days of heavy rain/high creek water. Both of these are heavy and have a hard iron-like shell or covering. The 2nd item was split into 2 pieces when I found it. It is made of the same material as the first. We have iron in our well water at the base of the ridge so I’m very familiar with the color and the smell of iron. These items don’t usually wash up in the creek. I picked them up because their unusual shape and texture contrasted with the creek’s normal sand and gravel.
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I’m only posting these because of the similarities in the 2 pieces. Very heavy iron material found in same creek in Arkansas near the Missouri border. Soon to be added to my rock garden.
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The microbially driven formation of siderite in salt marsh sediments Chin Yik Lin, Alexandra V. Turchyn, Alexey Krylov, Gilad Antler Geobiology. 2020;18:207–224. gbi.12371.pdf
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Chemical Erosion can sometimes be quite artistic
Ludwigia posted a topic in General Fossil Discussion
Last week I visited a new site in the Wutach Valley that a friend had told me about, but after 4 hours of digging and prying and not much to show for it, I decided to call it a day there and spend the remaining few hours checking out a plowed field in the viscinity which usually gave up a few modest finds. But this time I was in luck. The farmer had laid a long furrow on the edge of the field which was exposing a fossiliferously fruitful bed with which I was quite familiar: the Bajocian Macrocephalen-Oolite with among other things lots of Macrocephalites ammonites ripe for the harvest. All I h- 10 replies
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NEED HELP!!! Is This Just an Iron Concretion or A Preserved Fossil?
Kurufossils posted a topic in Fossil ID
Hello everyone, I am in desperate need of help with a huge debate I have been having with a friend over fossils preserved in ironstone concretions. From some of what I had read to some advice from other members I it possible to find vertebrate bone among shells and other mollusks preserved in an ironstone concretion. Whether it leaves a trace of the organism, morphs the organic material into the structure of the iron concretion through the decomposition with preserving, or whatever else it may be it seems to be possible. So recently I have hunted a place known to have recorded mar -
While rockhounding in the area of the Niagara Penninsula, I found an odd-shaped piece of metal about 5 inches beneath very thick, wet mud. The place in which I found the object was in a very shallow stream, which ran over sedimentary rock of the pre-Cambrian shield. After a closer inspection at home, I believe I may have found an iron-mineralized piece of a petrified wood, intertwined with two separate vines. A friend suggested it may be a rusty drill bit although I have doubts based on the location it was found. It is 3 1/2" long and 3/4" wide. It is heavy and seems hard like a metal. It is s
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Found this on the beach the other day along Puget Sound north of Seattle, and I just polished one face a bit (first photo) with some sandpaper to see the un-weathered stone. Is this siltstone, petrified wood, something else? Has anyone seen one with iron like this? Edit: I sanded it some more and took another photo. Pretty sure this is wood, based on the grain, but I'm no expert!
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I wanted to share some of my projects with all of you. A hobby and side business of mine is creating dinosaur sculptures. I do all different kinds of things aside from dinos too, but to keep it relevant, we’ll stick to the mesozoic Featured in my profile picture is my raptor created from scrap metal used to construct railings. I named him Bambi (ironically not a Bambiraptor). Probably more like Deinonychus, he’s a pretty big chicken, but you let me know what you think. As of now he’s my favorite creation, hence why he’s featured in my profile pic. Still trying to figure out the
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I FINALLY got something recognizable that didn't flake or crumble and now I don't know what it is. It was collected near Monster Lake in Braidwood. According to my identification book it may be a Cyperite, however, the book also says that these are "uncommon in most areas."
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I am new to the fossil collecting hobby and am attempting to open my iron concretions collected in Braidwood, IL using the freeze thaw method. I am doing it in my freezer in a single layer in a plastic shoe box. When they are thawing at room temperature the outer layers are crumbling. The nodes have not split yet. Is that normal or am I doing something wrong? Thanks.
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From the album: Vaches Noires spring 2018 and a bit of 2016
Iron pyrite from "les Vaches Noires" Cliffs - collected during april 2018 -
Hi everyone! Here's my first post on the forum, and I'd like to share an image of a little iron-replaced cretaceous-aged ammonite (unidentified species) which I have photographed recently using a $10 webcam-type digital "microscope". The image is created using a total of 70 individual frames stitched together using an automatic stitching software. The size of the ammonite is about an inch across. As an added bonus, I took the photograph and used it to make some digital measurements to determine how close the shape fits to a logarithmic spiral. The image b
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Pyritic_and_baritic_burrows_and_microbia.pdf Pictorially well endowed article, but that's just my opinion, mind. Lowemark is, of course, Mr Zoophycos himself.
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@ynot et al. How would you characterize this rock? It's about 2 lbs and has dimensions of 4-1/8" x 2-1/2" x 3". Heavy, but does not attract to magnet. I am calling it an "iron-rich concretion". From glacial deposits in Michigan. Thoughts?
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Any ideas? It is made of a black non-magnetic iron mineral. I was thinking a cast of a septarian nodule........
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The metal detector found this piece, there is more that we couldn't get dislodged from a root running through the ground where we were prompted to dig. We thought it was likely part of an old iron fence or wheel, but after washing the dirt off we aren't so sure. It's got a little weight to it, but seems like it might be part of a rib cage, from what creature in what era we haven't a clue. We were, as usual, digging by the creek under the bridge at the foot of the cliffs in Carversville, Pa, with a metal detector that we were using for the first time. Between our proximity to the bridge and it
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Found at Hungry Hollow in Devonian-era clay. Seems iron-rich, so it is possibly man-made. Is it a segmented body part? Both sides depicted, with end views
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I don't know if it is a fossil or not. It might be iron
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From the album: WhodamanHD's Fossil collection.
At this so oxidized, limonite is almost more proper. Don't know where it came from or the species. -
Not sure if it is a fossil, but really want to identify it. Tried some forums before, and thinking of taking it to get checked out. Thanks for looking.
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Hello all, I have a find from southern New Jersey. It has many crystalized "veins" running through it, and possibly internal too having a specific gravity of 2.27.....It is not brittle and is very solid, yet lightweight. Underneath shows an off-white color spot, which may be the original color as it has iron color to it now? Any thoughts on this specimen would be greatly appreciated. Thank you for taking a look. P.S. - Some photos were labeled too large, so I will also provided a link to a photobucket page with more pictures. http://s935.photobucket.com/user/TheeWoodsman/library/red%20rock?
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Hi everyone! I'm new here, but I plan on being an active poster. Geology and paleontology are my passions. I was out at Calvert Cliffs yesterday and the erosion is in full-swing, yielding many a Chesapecten. I also came across plenty of iron sandstone concretions. Everything I have read on the web is about the Navajo concretions in Colorado which are spherical. Obviously these are not spherical and their abundance at the cliffs in all manner of shapes and sizes is intriguing. I was wondering if any of you know how these formed? My geology professor was stumped (he has a doctorate in in
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Dirty Rock - Crinoid fragment with "rusty internal structure
Spookwoman posted a gallery image in Members Gallery
From the album: Irish Coral algae and Bryozoan
Crinoid fragment still in rock with some of the internal structure exposed and rusting. Area found is called the copper coast and known for iron ore
