Search the Community
Showing results for tags 'meteorites'.
-
Can anyone tell me what kind of rock or fossil this is
rowelaura1976 posted a topic in Rocks & Minerals
Need help to identify
-
Cut metallic heavy stone id help please with cross sections pics
Callahan posted a topic in Rocks & Minerals
Any mineral experts have any idea what these stones I just recently cut with my wet saw? 1-7 pics heavy extremely magnetic river find. Cut in half. Possible 1800s bullet making ingot raw material to be melted or long shot a meteorite? pics 6 and 7 are outside and heavily weathered. Almost a wafer looking rock. grey streak from cut side. Brown streak from weathered side 8-11 pics very heavy non magnetic at least with my fridge magnet I’m using. cut in half super shiny when polished. Cut side is not completely polished either. Still has cut marks on parts. seems to have so called melting marks etc. grey streak from polished side and brown streak on weathered side on ceramic Will send gravity and better close ups of rocks if anyone that’s interested. I need to do gravity on some other unusual minerals I’ve found also.
-
Hand magnets used by amateurs to test meteorites can damage them.
Oxytropidoceras posted a topic in Rocks & Minerals
Testing the damage hand magnets used by amateurs do to meteorites Bob Yirka, PhysOrg, March 11, 2023 The paper is: Vervelidou, F., Weiss, B.P. and Lagroix, F., 2022. Hand magnets and the destruction of ancient meteorite magnetism. Journal of Geophysical Research: Planets, p.e2022JE007464. PDF of preprint of Vervelidou et a. (2002) Official abstract of Vervelidou et a. (2002) Yours, Paul H. -
Challenges of identifying putative planetary-origin meteorites of non-igneous material
Oxytropidoceras posted a topic in Geology
Anfinogenova, Y. and Anfinogenov, J., 2019. Challenges of identifying putative planetary-origin meteorites of non-igneous material. Geoscience Frontiers, 10(5), pp.1879-1890. PDF in Researchgate PDF in Arxiv Archive Yours, Paul H. -
Drone assisted meteorite recovery - My Question: Why not Drone assisted vertebrate fossil recovery?
Oxytropidoceras posted a topic in Fossil News
If a person can find meteorites with drone, Why not vertebrate fossils? In the case of fossils, geological maps and aerial images take the roles of the radar and satellites used for meteorites. Drone assisted meteorite recovery Global Fireball Observatory, March 14, 2022 How satellites, radar and drones are tracking meteorites and aiding Earth’s asteroid defence Hadrian Devillepoix, The Conversation, November 21, 2022 An early attempt at using drones to find fossils: Archaeologists are hunting for fossils in Kenya's Turkana Basin — and you can help The Week, September 11, 2015 I have yet to find any publications that resulted from this research except for "Fossil Finder - the next stage. April 2018 Update. There is "field guide" on the righthand side that shows what fossils look like in an aerial drone image. Yours, Paul H. -
Alberta researchers discover in meteorite 2 minerals never before seen on Earth
Oxytropidoceras posted a topic in Rocks & Minerals
In meteorite, Alberta researchers discover 2 minerals never before seen on Earth Emily Mertz, Global News, November 28, 2022 New minerals discovered in massive meteorite may reveal clues to asteroid formation U of A experts play key role in identifying and naming two substances never before seen on Earth. Adrianna MacPherson, University of Alberta, November 28, 2022 Two minerals never before been seen on Earth found inside 17-ton meteorite By Ben Turner, , University of Alberta, November 28, 2022 The minerals were found inside a slice of the El Ali meteorite, which was found in Somalia in 2020. Yours, Paul H.- 1 reply
-
- 3
-
-
-
- el ali meteorite
- elaliite
- (and 4 more)
-
Piece of meteorite that created boom over Utah gifted to University of Utah, Fox 13 By: Spencer Joseph, August 23, 2022 The source of a resounding boom over Salt Lake City? Probably a meteor. Satellite imagery and a video from a Utah ski resort helped solve the case of the mysterious noise By Zach Rosenthal, The Washington Post, August 15, 2022 Meteorite hunters find what is believed to be pieces of meteorite boom, KSL 5 TV, August 18, 2022, Meteor causes loud boom heard across northern Utah, National Weather Service says, KSL 5 TV, Aug 13, 2022, Footage of meteor over Snowbasin Resort released By Ryan Bittan, ABC 4COM, Aug 13, 2022 Exploding meteor startles Utah By Stephanie Pappas, Live Science, August 15, 2022 Yours, Paul H.
-
- 2
-
-
- chondrite
- chondrites
- (and 4 more)
-
-
Meteorite Hunters in Morocco - it's not just for fossils.
Bone Daddy posted a topic in Rocks & Minerals
"Meteorite hunters in Morocco" a 45-min journalistic video about the science and trade of meteorites in Morocco. It's interesting and worth a watch. I get many of my meteorites from Morocco and the Sahara. Link - -
How to hunt for meteorites, Post by Kelly Whitt Astronomy Essentials, EarthSky, February 4, 2021 https://earthsky.org/human-world/how-to-find-a-meteorite-where-to-hunt-and-identification-tips Meteorite Mailing List http://www.meteoritecentral.com https://www.mail-archive.com/meteorite-list@meteoritecentral.com/ Global Meteorite Association, Inc. (GMA) https://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg129940.html An unrelated science article is: Chemists create and capture einsteinium, the elusive 99th element By Harry Baker, LiveScience https://www.livescience.com/einsteinium-experiments-uncover-chemical-properties.html Yours, Paul H.
- 1 reply
-
- 2
-
-
- meteor-wrong
- meteorite identification
- (and 2 more)
-
Hu, J., Asimow, P.D., Ma, C. and Bindi, L., 2020. First synthesis of a unique icosahedral phase from the Khatyrka meteorite by shock-recovery experiment. IUCrJ, 7(3). https://journals.iucr.org/m/issues/2020/03/00/lt5026/index.html Quanta Magazine articles https://www.quantamagazine.org/quasicrystal-meteorite-poses-age-old-questions-20140613/ https://www.quantamagazine.org/a-quasicrystals-shocking-origin-20160708/ Bindi, L., Dmitrienko, V.E. and Steinhardt, P.J., 2020. Are quasicrystals really so rare in the Universe?. American Mineralogist, 105(8), pp.1121-1125. http://minsocam.org/MSA/Ammin/AM_Preprints/7519BindiPreprint.pdf Bindi, L., Steinhardt, P.J., Yao, N. and Lu, P.J., 2009. Natural quasicrystals. science, 324(5932), pp.1306-1309. https://www.unifi.it/upload/sub/notizie/naturalquasicrystals_science.pdf Steinhardt, P.J. and Bindi, L., 2011. Once upon a time in Kamchatka: the search for natural quasicrystals. Philosophical Magazine, 91(19-21), pp.2421-2426. https://www.researchgate.net/publication/233447372_Once_upon_a_time_in_Kamchatka_The_search_for_natural_quasicrystals https://www.researchgate.net/profile/Luca_Bindi/3 Yours, Paul H.
-
Ancient zircon minerals from Mars reveal the elusive internal structure of the red planet, University of Copenhagen The Faculty of Health and Medical Sciences, November 17, 2020 Big Think article by Robby Berman, November 19, 2020 The paper is: Maria M. Costa, Ninna K. Jensen, Laura C. Bouvier, James N. Connelly, Takashi Mikouchi, Matthew S. A. Horstwood, Jussi- Petteri Suuronen, Frédéric Moynier, Zhengbin Deng, Arnaud Agranier, Laure A. J. Martin, Tim E. Johnson, Alexander A. Nemchin, Martin Bizzarro. The internal structure and geodynamics of Mars inferred from a 4.2-Gyr zircon record. Proceedings of the National Academy of Sciences, 2020; 202016326 DOI: 10.1073/pnas.2016326117 Yours, Paul H.
-
- 1
-
-
- black beauty
- hafnium
- (and 4 more)
-
Diamonds Found in Ureilites Formed During Gigantic Planetary Collisions
Oxytropidoceras posted a topic in Rocks & Minerals
Cosmic Diamonds Formed During Gigantic Planetary Collisions, Goethe University, Frankfurt, September 29, 2020 Nestola, F., Goodrich, C.A., Morana, M. Barbaro, A., Jakubek, R.S., Christ, O., Brenker, F.E., Domeneghetti, M.C., Dalconi, M.C., Alvaro, M., Fioretti, A.M., Litasov, K.D., Fries, M.D., Leoni, M., Casati, N.P.M., Jenniskens, P., and Shaddad, M.H., 2020. Impact shock origin of diamonds in ureilite meteorites. PNSA, Sept 19, 2020. Yours, Paul H.-
- 2
-
-
- diamonds
- impact events
- (and 5 more)
-
Can Antarctic meteorite explain the mystery of life's weird asymmetry
Oxytropidoceras posted a topic in Fossil News
Astonishingly old Antarctic space rock could explain mystery of life's weird asymmetry By Meghan Bartels, SpaceCom, August 21, 2020 https://www.space.com/pristine-antarctic-meteorite-amino-acid-chirality.html Pristine Space Rock Offers NASA Scientists Peek at Evolution of Life’s Building Blocks By Lonnie Shekhtman, NASA’s Goddard Space Flight Center, Greenbelt, Md., August 21, 2020 https://www.nasa.gov/feature/goddard/2020/pristine-space-rock-offers-nasa-scientists-peek-at-evolution-of-life-s-building-blocks The paper is: Daniel P. Glavin Hannah L. McLain Jason P. Dworkin Eric T. Parker and others, 2020 Abundant extraterrestrial amino acids in the primitive CM carbonaceous chondrite Asuka 12236 First published: 20 August 2020 https://doi.org/10.1111/maps.13560 https://onlinelibrary.wiley.com/doi/abs/10.1111/maps.13560 Yours, Paul H.-
- 1
-
-
- amino acids
- antarctica
- (and 6 more)
-
New Investigation of a Greenland ice core platinum anomaly near the Bølling-Allerød/Younger Dryas boundary
Oxytropidoceras posted a topic in Fossil News
Green, C. E., 2019. Investigating the origin of a Greenland ice core geochemical anomaly near the Bølling-Allerød/Younger Dryas boundary (Doctoral dissertation, Durham University). http://etheses.dur.ac.uk/13490/ http://etheses.dur.ac.uk/13490/1/C_Green_thesis_final_CORRECTIONS.pdf Green (2019) noted: "The source of a platinum peak identified in the Greenland Ice Sheet Project 2 (GISP2) ice core associated with high platinum/iridium (Pt/Ir) and platinum/aluminium (Pt/Al) ratios, and previous research attributed the anomaly to an unusual iron-rich Ir-poor meteorite impact." Green (2019) concluded: I. the Laacher See eruption is not the Pt spike source because: A. the Laacher See tephra has low Pt concentrations, B. the Laacher See tephra’s geochemical ratios are dissimilar to the GISP2 Pt spike and C. conversion of the Pt spike timing to the newest ice core age-depth model shows a chronological offset of ~60 years between the two events. II. The event resulting in the Pt spike occurred ~60 years after GS-1 cooling, and was therefore not the primary trigger. III. and the Pt spike origin is interpreted as either: A. a noncataclysmic impact of an undiscovered iron meteorite B. or an unidentified Pt-rich volcanic eruption contemporaneous with the anomaly, whose aerosol fractionated in the atmosphere or ice. Yours, Paul H. -
Antarctic meteorites yield global bombardment rate By Jonathan Amos, BBC News, April 30, 2020 https://www.bbc.com/news/science-environment-52465237 This open access paper is: G.W. Evatt, A.R.D. Smedley, K.H. Joy, L. Hunter, W.H. Tey, I.D. Abrahams, and L. Gerrish, 2020, The spatial flux of Earth’s meteorite falls found via Antarctic data. geology. https://pubs.geoscienceworld.org/gsa/geology/article/doi/10.1130/G46733.1/584575/The-spatial-flux-of-Earth-s-meteorite-falls-found Yours, Paul H.
-
- 1
-
-
- antarctica
- bombardment
- (and 3 more)
-
Aloha, here is the best of my collection. Since I moved together with my girlfriend, only the small and nice samples are on display, one showcase out of three. Looking forward to the day when we will have some more space. So it is a crowded mix of fossils, minerals, recent beachfinds and mosty selfmade or altered skeleton models. Sadly, only a small percentage of my fossils is selffound, although nearly all of the beach stuff is. There is the "poultry showcase", dedicated to Birds and pterosaurs (Parrot skull is a replica of course, as is the Pterosaur plate regrettably) The big showcase is a composite image because I could not get all into one foto. The whales you may know from the Palaeorecreation thread. Best Regards, J
- 11 replies
-
- 12
-
-
- artifacts
- beachfinds
- (and 7 more)
-
British scientists try to find Antarctica's "missing meteorites"
Oxytropidoceras posted a topic in Rocks & Minerals
Antarctica: Metal meteorite quest set to get under way By Jonathan Amos, BBC Science, November 29, 2019 https://www.bbc.com/news/science-environment-50549855 https://www.bbc.com/news/science-environment-35587680 The Mystery of Antarctica’s Missing Meteorites Hiding deep under the ice, iron meteorites could hold clues to the solar system’s past., The Atlantic https://www.theatlantic.com/science/archive/2019/02/hunting-for-antarcticas-lost-meteorites/583564/ Evatt, G.W., Coughlan, M.J., Joy, K.H., Smedley, A.R.D., Connolly, P.J. and Abrahams, I.D., 2016. A potential hidden layer of meteorites below the ice surface of Antarctica. Nature Communications, 7, Article number 10679. http://lindseynicholson.org/wp-content/uploads/2016/04/ncomms10679.pdf https://www.nature.com/articles/ncomms10679 An off-topic, but still interesting article is: Scientists Recreated Volcanic Lightning by Blasting Ash Out of a Cannon Robin George Andrews, Gizmodo, November 29, 2019 https://gizmodo.com/scientists-recreated-volcanic-lightning-by-blasting-ash-1840068684 Yours, Paul H.-
- 3
-
-
- antarctica
- iron meteorite
- (and 3 more)
-
I found this on a farm In NSW AUST where I was land leveling with large machinery for irrigation development. I’ve found fossils and early human artefacts before but this was a bit different and caught my eye so I did a little research on the Web as you do! And after looking at as many meteorites and meteorwrongs as possible I have come to the conclusion it has me convinced it’s a meteorite! So was wondering what others opinionions might be?? I have some good pics and I’ve down sized my images to way under the TFF limit but unfortunately still says they’re to big? So this is all I can send atm!
-
Two million-year long meteorite record found in Atacama Desert
Oxytropidoceras posted a topic in Fossil News
Oldest meteorite collection on Earth found in one of the driest places, Geological Society of America Sciencedaily, May 23, 2019 https://www.sciencedaily.com/releases/2019/05/190523130200.htm Earth's Oldest Meteorite Collection Just Found in the Driest Place on the Planet By Brandon Specktor, May 24, 2019 https://www.livescience.com/65558-atacama-desert-has-meteors-for-days.html The paper is: A. Drouard, J. Gattacceca, A. Hutzler, P. Rochette, R. Braucher, D. Bourlès, ASTER Team, M. Gounelle, A. Morbidelli, V. Debaille, M. Van Ginneken, M. Valenzuela, Y. Quesnel, R. Martinez. The meteorite flux of the past 2 m.y. recorded in the Atacama Desert. Geology, May 22, 2019. Open Access https://pubs.geoscienceworld.org/gsa/geology/article/570818/the-meteorite-flux-of-the-past-2-m-y-recorded-in https://arxiv.org/abs/1904.12644 Yours, Paul H.-
- 2
-
-
- atacama desert
- caleta el cobre
- (and 4 more)
-
Anfinogenova, Y. and Anfinogenov, J., 2019. Challenges of identifying putative planetary-origin meteorites of non-igneous material. Geoscience Frontiers. (Open Access) https://www.sciencedirect.com/science/article/pii/S1674987119300209 https://arxiv.org/abs/1802.09960 And just when I thought that I had heard everything, this paper appeared. Fastook, J.L., Head, J.W. and Deutsch, A.N., 2019. Glaciation on Mercury: Accumulation and flow of ice in permanently shadowed circum-polar crater interiors. Icarus, 317, pp.81-93. http://www.planetary.brown.edu/html_pages/publications.htm http://www.planetary.brown.edu/pdfs/5065.pdf https://www.sciencedirect.com/science/article/pii/S0019103517306061 Yours, Paul H.
-
- 3
-
-
- ‘johns rock’
- mars
- (and 4 more)
-
Hello, I am ziggycardon! I am currently 23 years old and I'm from Belgium. Ever scince I was a small child, I've had a great interest in dinosaurs, animals and pretty much everything that has to do with nature and natural history! On a professional level I also work with animals as I am head of terrarium & aquarium in 3 different pet stores, but in my spare time I also keep and breed many reptiles, amphibians, invertebrates & exotix fish (although, I am tyring to take it a few steps back privately), and another thing I do in my spare time is to visit school with my collection of reptiles and other exotic animals (including some living fossils) as well as a whole load of other educational natural history material and ofcourse with fossils. One of my biggest interest in evolution and that's where my passion for the paleontology and zoology really meet! I bought my first fossil at the age of 12, but I've started collecting fossils as a hobby in late 2015 and I have build a small collection ever since. Unfortunatly I have never in my life found a fossil myself, something I really have to start doing as I find the entire process fascinating, but I am sure this forum might give me the push I need to get started! This week I started working on my first specialized fossil room which I hope to have finished in november this year. Hope to house most of my fossils there as well as some museum quality replica's and do some themed displays like a Kemkem display with a life sized spinosaurus skull replica and lot's of kemkem fossils, a ice age display, a eocene display, a marine reptile display and so on... Something I also wanted to mention, the reason I've found this forum is due to the fact that I had a 1,06 meter long lower jaw of a Prognathodon delivered today and the seller of the fossil who brought me the fossil told me about the forum after I told him about the upcoming fossil room and that I might get in contact here with people should I ever want a certain fossil that might be hard to uptain. Is there anything more to say about me? Well I've the most wonderfull girlfriend I can imagine who shares an interest in paleontology but not in the same passion as I do. I really love to visit musea and I love to travel. And besides fossils and animals my other hobbies & interests are centered about movies and television as I am in particular a huge fan of everything Middle Earth, Game of Thrones & Pirates of the Caribbean, collecting lot's of collectables from these franchises and met quite a lot of the actors who play in them! Including Sam Neill who we probably all now best as dr. Alan Grant in Jurassic Park! Here are some photo's of my fossil collection, my animals and my photo with Sam Neill. First of all, this is me proudly posing with an ammonite! My newly arrived prognathodon jaw My display cases: afbeeldinegn upload images afbeeldingne upload pictures img foto The things that I don't have room for to display yet... A few of my special pets My photo with Sam Neill A.K.A. dr. Alan Grant If you have any questions regarding my photo's or my collection or what I do or about anything, feel free to ask!
-
I found these in a bag I got from someone so I'm not sure where there from
-
Talks about Asteroids and Why SuperEarths are not Earthlike and Earth is Special
Oxytropidoceras posted a topic in Rocks & Minerals
There are a lot meteorite and extraterrestrial videos from the SETI Institute web page. several include meteorites and asteroids. They included. Late, Late Heavy Bombardment - Bill Bottke (SETI Talks) https://www.youtube.com/watch?v=4MMYTzb0L_s Late Heavy Bombardment - Don Lowe (SETI Talks) SETI InstitutePublished on Aug 3, 2010 https://www.youtube.com/watch?v=JAMm_0t5kcM 1I/‘Oumuamua, The First known Interstellar Visitor - Matija Cuk & Meg Schwamb (SETI Talks 2018) https://www.youtube.com/watch?v=b_vAcv7JGhQ Sutters Mill Meteorite Fall - Peter Jenniskens (SETI Talks) https://www.youtube.com/watch?v=zcSXmCrXbUo&list=PL7B4FE6C62DCB34E1&index=38 SETI Talks archive - http://seti.org/talks https://www.youtube.com/playlist?list=PL7B4FE6C62DCB34E1 Yours, Paul H. -
Below are a selection of news articles, of varying sensationalism, to remind everyone what crowded and potentially dangerous solar, neighborhood that we occupy. NASA Asteroid Hunter Explains the Risks that Near Earth Objects Pose to Planet, Hanna Osborne, Newsweek, http://www.newsweek.com/asteroid-day-nasa-risk-earth-neos-629965 Space rock found to be travelling With Earth Scientists have discovered that Earth is being tailed by an Asteroid, Sean Martin, Express. http://www.express.co.uk/news/science/868068/ASTEROID-belt-nasa-end-of-the-world-earth-orbit Asteroid 2012 TC4: Space rock could come back and Smash into Earth in the near future The asteroid which had a near miss with Earth could come back and smash into the planet in the future, researchers have warned, Sean Martin, Express, Oct 13, 2017 http://www.express.co.uk/news/science/866149/Asteroid-2012-TC4-hit-Earth-end-of-the-world-nasa-esa How We Discovered, Lost, and Rediscovered the First Asteroid. It was a lot of math and staring through telescopes. Popular Mechanics http://www.popularmechanics.com/space/solar-system/a28667/how-we-discovered-lost-and-rediscovered-the-first-asteroid/ Samples Brought Back From Asteroid Itokawa Reveal 'Rubble Pile' Had a Violent Past, Curtin University Posted October 18, 2017 http://spaceref.com/asteroids/samples-brought-back-from-asteroid-itokawa-reveal-rubble-pile-had-a-violent-past.html Near-Earth Objects News https://watchers.news/category/near-earth-objects/ What I am worried about is not the asteroids that we know about. What worries me are the asteroids that we do not know about and appear abruptly out of the darkness like a drunk driver on a New Orleans street. Go read “Asteroid 2017 TF5 flew past Earth at 0.73 LD, 4 days before discovery, October 16, 2017 https://watchers.news/2017/10/16/asteroid-2017-tf5/ Unlike the dinosaurs, we have, if we want it, the technology to possibly defend ourselves from wayward asteroids. Yours, Paul H.
- 1 reply
-
- 2
-
-
- asteroids
- impact cratering
- (and 2 more)
