Re: [meteorite-list] Aztec, NM Meteorite questions
Hi Dennis, Ruben and all, I checked out some of my Nininger books but didn't find any info either. Looks like most of the material is at the Field Museum. There are some smaller specimens (cut from the one stone that fell) in a couple of other collections including Nininger's. Fell February 1st, 1938 around 5 p.m. local time. Perhaps talking to the places that have part of the specimen might yield some more information. Some research is in order to find out more about this fall! Best and good luck! --AL Mitterling Quoting Ruben Garcia via Meteorite-list : Hi, Aztec NM is my home town. I grew up there, I even graduated high school in Aztec. So, I have always wondered about where exactly that stone fell. Unfortunately, I never could find out much. Good luck. On Mar 21, 2016 6:18 PM, "Dennis Miller via Meteorite-list" < meteorite-list@meteoritecentral.com> wrote: Hello, All! Living just 8 miles from Aztec, NM, thought that I might do a little fragment hunting. I have a few questions, though. First, I have read that Harvey Nininger sent his wife, Addie, to Aztec to purchase the only stone. Does anyone know who she purchased it from? Second, what was the flight path? And finally, does anyone have a small piece for sale? Thanks! Dennis IMCA #1434 P.S. Also looking for a piece of Four Corners meteorite. Sent from my iPad __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Aztec, NM Meteorite questions
Hi, Aztec NM is my home town. I grew up there, I even graduated high school in Aztec. So, I have always wondered about where exactly that stone fell. Unfortunately, I never could find out much. Good luck. On Mar 21, 2016 6:18 PM, "Dennis Miller via Meteorite-list" < meteorite-list@meteoritecentral.com> wrote: > Hello, All! Living just 8 miles from Aztec, NM, thought that I might do a > little > fragment hunting. I have a few questions, though. First, I have read that > Harvey Nininger sent his wife, Addie, to Aztec to purchase the only stone. > Does anyone know who she purchased it from? Second, what was the > flight path? And finally, does anyone have a small piece for sale? > Thanks! > Dennis IMCA #1434 > P.S. Also looking for a piece of Four Corners meteorite. > > Sent from my iPad > __ > > Visit our Facebook page https://www.facebook.com/meteoritecentral and the > Archives at http://www.meteorite-list-archives.com > Meteorite-list mailing list > Meteorite-list@meteoritecentral.com > https://pairlist3.pair.net/mailman/listinfo/meteorite-list > __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Aztec, NM Meteorite questions
Hello, All! Living just 8 miles from Aztec, NM, thought that I might do a little fragment hunting. I have a few questions, though. First, I have read that Harvey Nininger sent his wife, Addie, to Aztec to purchase the only stone. Does anyone know who she purchased it from? Second, what was the flight path? And finally, does anyone have a small piece for sale? Thanks! Dennis IMCA #1434 P.S. Also looking for a piece of Four Corners meteorite. Sent from my iPad __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Trace of Meteorite That Killed Dinosaurs Found in Colombia
http://latino.foxnews.com/latino/lifestyle/2016/03/16/first-south-american-vestige-meteorite-that-killed-dinosaurs-found-in-colombia/ First South American trace of meteorite that killed dinosaurs found in Colombia Fox News Latino March 16, 2016 Bogota,(EFE) - A team of scientists headed by geologist Herman Bermudez working on the Colombian island of Gorgonilla, in the Pacific, has found fragments of the meteorite that 66 million years ago caused the extinction of the dinosaurs, sources close to the investigation said Tuesday. "(We have) evidence of the impact of the meteorite, (they are very tiny) particles that are the result when the meteorite hit," Bermudez told EFE. Those remains, called spherulites, which are small, rounded bodies that commonly occur in vitreous igneous rocks, are part of the continental shelf material that is currently the Yucatan Peninsula and they were found with fragments of the meteorite. The spherulites are about 0.8 inches in diameter and look like marbles, being made of glass. Under the microscope, small crystals from the meteorite can be seen and they show its composition. When the meteorite hit Earth, it blasted out a crater 125 miles in diameter known today as Chicxulub, which is on the Yucatan Peninsula. The impact caused an environmental catastrophe, including gigantic tsunamis, that led to the massive extinction of many species, including the dinosaurs. Bermudez said that "the find is unique" because experts worldwide who worked with him "know all the spots in the world where there is evidence of the impact" and said that "they had never seen preservation like this." It is still not known precisely why the fragments are in such good shape, but scientists suspect that it is because Gorgonilla "was very deep under the ocean" and only emerged from the waves millions of years later. These are the first fragments that have been discovered in South America, although fragments of the meteorite have been found in Central and North America. Despite the lack of financing, Bermudez says he hopes to continue working to show that when the meteorite hit there was a "mega-earthquake" measuring 13 on the Richter scale in the Western Hemisphere. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Watch TWO Tiny Comets Zip Past Earth This Week During a Very Close Encounter
http://www.slate.com/blogs/bad_astronomy/2016/03/21/two_small_comets_252p_linear_and_p_2016_ba1_panstarrs_pass_earth_this_week.html Watch TWO Tiny Comets Zip Past Earth This Week During a Very Close Encounter By Phil Plait March 21, 2016 On Monday and Tuesday, two comets will pass Earth in their orbits around the Sun. There are lots of cool things about this event: They are among the closest comets to have ever passed us in modern times, both are very small, one was thought to be an asteroid at first, but then it was discovered to be a comet - and it's probably a chunk broken off the other one! So there's a lot going on here. The two comets are 252P/LINEAR 12, and P/2016 BA14 (PanSTARRS). The comet 252P is the bigger piece, at roughly 230 meters across. Right away, that's pretty small; the comet the Rosetta probe is orbiting right now (67/P Churyumov-Gerasimenko) is 4 kilometers across, and most comets are bigger still. But BA14, the second one, is even smaller that 252P. It was thought to be an asteroid when it was first seen in January 2016, but a deeper observation showed it to have a tail! That makes it a comet. The distinction isn't really all that clean, but rules are rules. I wrote all about these comets in February if you want details. In a nutshell, they have very similar orbits, and while it's not 100 percent certain, it seems very likely they were once one object. Comets are somewhat fragile, being made of rock, gravel, and dust held together by ice. When a comet gets near the Sun the ice turns into a gas, and lots of the other material breaks loose. Sometimes a large chunk breaks off - we call that calving - and so BA14 having once been part of 252P is not without precedent. The comet 252P passes us on Monday at a distance of about 5.2 million kilometers. BA14 passes Earth the next day at about 3.5 million kilometers. That makes them the fourth and seventh closest approaches by comets known, in fact. The animation below shows their orbits as they pass Earth. The Moon is about 380,000 kilometers from Earth, so they both miss us by about nine times that distance. As you can see, that's a quite safe amount. There's also a Java applet online where you can play with their orbits, too. (http://neo.jpl.nasa.gov/orbits/twocomets.html) [Animation] The paths of the comets as they pass Earth, centered on 252P/LINEAR. Animation by NASA/JPL-Caltech/Ron Baalke. Still, even though it's a close pass, neither will be terribly bright; in fact, BA14 will be invisible to the naked eye. Remember, they're small. However, while I expected 252P to be very faint as well, it jumped hugely in brightness the past week and is actually a good binocular object; Universe Today has more on that (including a finder chart). It's not clear why 252P got so much brighter, but that generally happens in comets when a piece breaks off, or a pocket of ice suddenly turns to gas. That fits with the bigger picture of 252P calving to create BA14, too. [Animation] UPDATE, Mar. 21, 2016: Gianluca Masi of the Virtual Telescope Project (see paragraph below) has created this wonderful animation of BA14 moving across the sky from images taken just last night! Even if you can't see them yourself from your location, the Virtual Telescope will be observing both worldlets, and you can watch live online Monday night and Tuesday night starting at 21:00 UTC (17:00 Eastern U.S. time). http://www.virtualtelescope.eu/2016/03/16/comet-p2016-ba14-panstarrs-a-historic-close-encounter-online-ev ent-21-22-march-2016/ I'll be tuning in to watch when I can. I've seen a lot of comets in my time - with my eyes, with binoculars, and with telescopes - and even though they'll just be dots, the idea of seeing such a close encounter is compelling to me. I'll note Hubble will be used to observe them as well, so I'm hoping those observations will be released as soon as possible (likely in a couple of weeks at least). This event is a good reminder that there are a lot of objects out there. Many of them get close, and in many cases we don't discover them until a few months out, or sometimes not even until after they pass us. The more we take these things seriously, the better. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] New Gravity Map Gives Best View Yet Inside Mars
http://www.jpl.nasa.gov/news/news.php?feature=6165 New Gravity Map Gives Best View Yet Inside Mars Jet Propulsion Laboratory March 21, 2016 A new map of Mars' gravity made with three NASA spacecraft is the most detailed to date, providing a revealing glimpse into the hidden interior of the Red Planet. "Gravity maps allow us to see inside a planet, just as a doctor uses an X-ray to see inside a patient," said Antonio Genova of the Massachusetts Institute of Technology (MIT), Cambridge. "The new gravity map will be helpful for future Mars exploration, because better knowledge of the planet's gravity anomalies helps mission controllers insert spacecraft more precisely into orbit about Mars. Furthermore, the improved resolution of our gravity map will help us understand the still-mysterious formation of specific regions of the planet." Genova, who is affiliated with MIT but is located at NASA's Goddard Space Flight Center in Greenbelt, Maryland, is the lead author of a paper on this research published online March 5 in the journal Icarus. The improved resolution of the new gravity map suggests a new explanation for how some features formed across the boundary that divides the relatively smooth northern lowlands from heavily cratered southern highlands. Also, the team confirmed that Mars has a liquid outer core of molten rock by analyzing tides in the Martian crust and mantle caused by the gravitational pull of the sun and the two moons of Mars. Finally, by observing how Mars' gravity changed over 11 years - the period of an entire cycle of solar activity -- the team inferred the massive amount of carbon dioxide that freezes out of the atmosphere onto a Martian polar ice cap when it experiences winter. They also observed how that mass moves between the south pole and the north pole with the change of season in each hemisphere. The map was derived using Doppler and range tracking data collected by NASA's Deep Space Network from three NASA spacecraft in orbit around Mars: Mars Global Surveyor (MGS), Mars Odyssey (ODY), and the Mars Reconnaissance Orbiter (MRO). Like all planets, Mars is lumpy, which causes the gravitational pull felt by spacecraft in orbit around it to change. For example, the pull will be a bit stronger over a mountain, and slightly weaker over a canyon. Slight differences in Mars' gravity changed the trajectory of the NASA spacecraft orbiting the planet, which altered the signal being sent from the spacecraft to the Deep Space Network. These small fluctuations in the orbital data were used to build a map of the Martian gravity field. The gravity field was recovered using about 16 years of data that were continuously collected in orbit around Mars. However, orbital changes from uneven gravity are tiny, and other forces that can perturb the motion of the spacecraft had to be carefully accounted for, such as the force of sunlight on the spacecraft's solar panels and drag from the Red Planet's thin upper atmosphere. It took two years of analysis and computer modeling to remove the motion not caused by gravity. "With this new map, we've been able to see gravity anomalies as small as about 62 miles (100 kilometers) across, and we've determined the crustal thickness of Mars with a resolution of almost 75 miles (around 120 kilometers)," said Genova. "The better resolution of the new map helps interpret how the crust of the planet changed over Mars' history in many regions." For example, an area of lower gravity between Acidalia Planitia and Tempe Terra was interpreted before as a system of buried channels that delivered water and sediments from Mars' southern highlands into the northern lowlands billions of years ago when the Martian climate was wetter than it is today. The new map reveals that this low gravity anomaly is definitely larger and follows the boundary between the highlands and the lowlands. This system of gravity troughs is unlikely to be only due to buried channels because in places the region is elevated above the surrounding plains. The new gravity map shows that some of these features run perpendicular to the local topography slope, against what would have been the natural downhill flow of water. An alternative explanation is that this anomaly may be a consequence of a flexure or bending of the lithosphere -- the strong, outermost layer of the planet -- due to the formation of the Tharsis region. Tharsis is a volcanic plateau on Mars thousands of miles across with the largest volcanoes in the solar system. As the Tharsis volcanoes grew, the surrounding lithosphere buckled under their immense weight. The new gravity field also allowed the team to confirm indications from previous gravity solutions that Mars has a liquid outer core of molten rock. The new gravity solution improved the measurement of the Martian tides, which will be used by geophysicists to improve the model of Mars' interior. Changes in Martian gr
Re: [meteorite-list] Spherulites From Chicxulub Impact Found in Columbia
Paul, So, are these the Colombian tektites that are found there or are these different? Any pictures? Thanks Carl -- Love & Life Paul via Meteorite-list wrote: > Remains of Meteorite That Killed Dinosaurs Found in Colombia, > > Latin America Times Herald, March 16, 2016 > > http://www.laht.com/article.asp?ArticleId=2407852&CategoryId=13936 > > Fragments of Dinosaur-Killer Meteorite Landed in Colombia, > > The Costa Rica Star, March 15, 2016 > > http://news.co.cr/fragments-of-dinosaur-killer-meteorite-landed-in-colombia/45582/ > > First South American trace of meteorite that killed dinosaurs found in > > Colombia, News Latino, March 16, 2016 > > http://latino.foxnews.com/latino/lifestyle/2016/03/16/first-south-american-vestige-meteorite-that-killed-dinosaurs-found-in-colombia/ > > Hallan en Colombia restos del meteorito que hizo extinguir a los > dinosaurios. El equipo científico estuvo liderado por el geólogo > Hermann Bermúdez que hizo la investigación en la isla de Gorgonilla, > en el Pacífico, Pulzo, March 15, 2016 > > http://www.pulzo.com/vivir-bien/10-dilemas-que-tienen-todas-las-mujeres-en-cualquier-momento/PP5556?from=home-nacion > > Remains of mystery meteorite found in Colombia by Latin Correspondent > > http://latincorrespondent.com/2016/03/remains-of-mystery-meteorite-found-in-colombia/ > > Yours, > > Paul H. > __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Canyon Diablo Graphite Nodule Contributed by: Wendy Swartz http://www.tucsonmeteorites.com/mpodmain.asp?DD=03/21/2016 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
