Search the Community
Showing results for tags 'metamorphic'.
Found 5 results
-
A long time ago I posted about this in a thread on Cretaceous fossils. After going through some labels again, and looking back at geologic maps, I'm 99% sure this "dinosaur" remain (or whatever I thought back then XD) isn't even from the Coastal Plain, but the Piedmont. As you can see, the reason I thought Coastal Plain initially is pretty forgivable. The Piedmont is known as an area of metamorphic units, but this specimen almost looks like some kind of sedimentary feature? Almost looks like ripple marks. Just wondering what anyone's thoughts on this was. The bed I th
-
I'm working with Dr David Campbell on possible fossils found associated with the Murphy Marble Fm in Western North Carolina. In 1973. Don Hathaway was logging cores at the Nantahala Limestone Quarry when he found what looked to be organic remains in a couple of cores cut into the Murphy Marble Fm. The age of the Murphy Marble is enigmatic, because of the lack of fossils in it, and it doesn't have the minerals that could be used to determine radiometric ages. The metamorphic grade of the marble and associated formations are garnet to staurolite grade. It's believed that these units were metamor
-
PA fossil rock ID, very heavy, found near Devonian fossils
LindsayWilson posted a topic in Fossil ID
I found this in our backyard in a rock pile. I find many Devonian fossils in the shale lined creeks around Erie, PA. This rock appears to be similar but is extremely heavy and different colored. I can make out fossils but don’t recognize some of the imprints abs it appears folded and is SUPER heavy. For comparison, the rock I found with it, also pictured here is about 3-4x the size but the smaller one weighs 3x as much. No magnetism, but has a burnt spot. Was it perhaps originally a large piece of the lighter fossil plate that someone burned (possibly in a fire pit?) and that is how i -
Found this formation on the bank of the Dnieper River, Ukraine, Kherson region. Sizes: 73mm length and 32mm width. Composition: the surface layer consists of steatite; the next layer is similar in color to the bone, has many small (less sand) and a little medium-sized pores, a hardness of about 4,5-5, actively foams under the action of hydrochloric acid; the inner layer of blue material has a dense structure similar to flint or chalcedony with impurities, chalcedony does not scratch. Can it be hidrotermal metamorphic fossil, or simply geology formation?
-
My metamorphic/igneous trip to Socorro, New Mexico.
Innocentx posted a topic in Fossil Hunting Trips
All the beauty you see against the blue sky is a story of time from the book of rocks, uplifting, cleaving, and eroding in wonderful ways. I searched and got this Socorro County geologic map. A rather immense amount of study involved in this document. Best at 175% zoom. If I lived there all the time I might come to understand it. https://geoinfo.nmt.edu/publications/openfile/downloads/200-299/238/ofr_238.pdf- 39 replies
-
- 8
-
-
- socorro
- petroglyphs
- (and 4 more)
