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Applications for an Antiquities Act permit will be reviewed by the authorized officer in the BLM State Office with jurisdiction over the Cultural Resources program. The meteorite is a breccia, composed only of fragments of L-chondrite materials. Dr. Kring wants to do more work including cosmogenics and such, on several different samples to help come to a conclusion as to whether or not it is indeed Gold Basin . The meteorite is a breccia, composed only of fragments of L-chondrite materials. Joe starts his day with a cup of coffee in his favorite cup. Over 4450 meteorite specimens with a total mass of 168 760 g have been found in the Gold Basin (L4) strewn field over an area of 225 km2. Often, these fields grow as time goes on and science does not keep up with old strewn field data. Meteorite Maps and Impact Craters - Worldwide Worldwide Meteorite and Impact Crater Maps for Research and Meteorite Hunting. Some museums and universities have paid from $100 to $5,000 per gram for this particular (Allan Hills 840001) specimen, but most iron meteorites are sold or traded by collectors from 10 cents to $1.50 per gram, depending upon their variety, authenticity and size. Over the weekend of October 28 - 30, 2022, five of us planned to hunt the Franconia meteorite strewn field north of Lake Havasu City. (adsbygoogle = window.adsbygoogle || []).push({}); DesertUSA Newsletter -- We send articles on hiking, camping and places to explore, as well as animals, wildflower reports, plant information and much more. The first appearance of falling meteorites on radar occurs at 03:05:26 UTC and 19,750 m above sea level (ASL) in the 0301 UTC data set for the KRTX radar in the 3.9 degree elevation radar sweep. You can not trust any of them as being the gosphel, only ones thoughts on where it may be in general based on data collected at that time. Upload or insert images from URL. Many meteorites are small, only a few centimeters in size, so youll need to be watching closely. Even if Ron Hartman would have never found that first Lucerne Valley Meteorite, our paths still would have crossed, eventually. J.T.} The angle and speed of entry, along with signatures in weather radar imagery, are consistent with other naturally occurring meteorite falls. The meteorite flux estimated for Franconia area is higher than the flux inferred from contemporary fireball data for larger masses. A bright meteor, called a fireball, may be a sign of a meteorite fall. The rock exhibits weak mosacisim but does not contain maskelynite.. This is the 7th largest number of any state in the U.S., trailing just Texas, California, New Mexico, Kansas, Arizona and Nevada. Smithsonian Institute (Washington, D.C.) The strewn fields are freely available for use with Google Maps, in the form of KML files. Heres the low down on the science so far. The meteorite is a breccia, composed only of fragments of L-chondrite materials. Three years ago Joe Franske ventured to the north side of Lake Meade in search of the big end of Gold Basin. Google Earth. I will come back later with a better detector to get down deep. Click on the map to enlarge. 19 kilograms (42 lb), Wagner Free . Arizona is experiencing a mini-boom in meteorite recoveries, and you now can view a web-based map that shows where the meteorites hit, what they look like and how they're classified.The clickable map at http://www.lpl.arizona.edu/SIC/arizona_meteorites/ was created by David A. Kring, students Jake Bailey and Ross Beyer, and photographer Maria Schuchardt at the University of Arizona Space Imagery Center.Kring is director of the Meteorite Recovery Program and new director of the Space Imagery Center at the UA Lunar and Planetary Lab. Your link has been automatically embedded. . We respectfully acknowledge the University of Arizona is on the land and territories of Indigenous peoples. Click On Image For Ebay The very first piece I hit with the detector. Sign up below or read more about the DesertUSA newsletter here. The playa is an 8-mile wide by 10-mile long triangular area surrounded by mountains. Of course, its possible this is not GB but the evidence looks very promising. The strewn field is located in an extremely rugged region of New Mexico criss-crossed with mountain, canyons and deep ravines. There is no phone service and the road out wants to eat your truck! Might have to make a trip back that way someday. and in other places. This is perhaps the most visually striking of all the finds thus far! Stones are similar to rocks found on the earth in that they are composed primarily of silicate minerals, that is, compounds consisting of silicon, oxygen, and various metallic elements. Check with Uncle Ron. The fall was witnessed by hundreds. There are many informative and educational books available to anyone interested in prospecting for meteorites. Still enthusiastic about meteorites and all things related to them, we hunt, collect, cut and prepare specimens. EL NINO77 The public can contact meteorite experts through the UA Mineral Museum at Flandrau Science Center, the UA Lunar and Planetary Lab, and Arizona State University's Center for Meteorite Studies.The four non-Arizona meteorites recovered by the UA team during the past year are one from Roosevelt County, New Mexico, and three from Saudi Arabia. https://fireball.amsmeteors.org in what you need to know about them. He had a lot to do with meteorite hunting. Started December 31, 2022, By It's less than a two hour drive across the Colorado River from Las Vegas, NV. Photo by Charlie Leight/ASU Now Searching consisted of walking slowly and scanning small patches of bare ground where it would be possible to see a small, black, rounded rock, according to Garvie. He mapped out the original meteorite strewn field. There's a lot going on in the study of meteorites, both here at NASA Last week I extended the field another 5.75 miles with 2 finds on the north side of Jumbo, including a 34 pound stone that was broken into many pieces. A map showing the extent of the Australasian tektite strewn field. Since 1995, thousands of stony meteorites have also been. On the late afternoon of March 15, 1806, residents []. sites that have been identified across the United States. J.T. Find out more about recent searches and possible Abstract Over 4450 meteorite specimens with a total mass of 168 760 g have been found in the Gold Basin (L4) strewn field over an area of 225 km 2. Small asteroids enter the atmosphere above the continental United States once or twice a year on average and often deliver meteorites to the ground. Yellow is 1g, up to red = 1,000g. Seven of those were identified in the past year by the UA Meteorite Recovery Program (MRP). Threw alot of nice ones away as hot rocks before they were identified as meteorite's. Might have to make a trip back that way someday. There are more than 15 known impact craters throughout the U.S. from which fragments are still being found by treasure hunters, hikers and off-road vehicle enthusiasts. Though Meteor Crater is a huge attraction, it is not the most common site where meteorites have been found in recent years. Website by: Web 7 Marketing Inc - Michigan's Leading Web Design & SEO Firm. Figure 1 shows a map of meteorites recovered from the Franconia area, for both classified and unclassified samples. Please send your reports to me so that I can share them with the scientist involved with our work. Photo taken late-1963 / early-1964 by Ron Oriti. A.} I submitted samples from my 16+ lb. The meteorite is of chondritic texture with moderately well defined olivine and orthopyroxene chondrules (0.2-2 mm) embedded in a fine-grained matrix rich in olivine, orthopyroxene, and minor albitic plagioclase. Started Thursday at 08:30 PM, By "We have not yet hit the edge of the Gold Basin strewn field in any direction," Kring . These impact zones show where scientists have found meteorites, or the impact craters of meteorites, some dating back as far as the year 2,300BC. It is 4,260 feet across and 575 feet deep. Arizona: Classification: H5 Chondrite: Witnessed Fall: No: Date and Time: Found October 15, 2002: TKW: . Click here for a complete list of Arizona meteorites! The airport radar for Phoenix Sky Harbor Airport (TPHX) also recorded signatures of falling meteorites. Estimated strewn field, colored by meteorite mass. Two specimens with a total mass of 56g were recovered. While I had previously visited this location over the years, I never had the chance to explore it for meteorites. ; McHargue, L. R. et al. By This picture was taken about 22 miles north of the southernmost end of the field and it stretches many miles more to the north. . Reading about Meteorites. Marchs Meteorite of the Month is Alais, a carbonaceous chondrite that fell in southern France in 1806. abstract = "Over 4450 meteorite specimens with a total mass of 168 760 g have been found in the Gold Basin (L4) strewn field over an area of 225 km2. Contribute to chinapedia/wikipedia.en development by creating an account on GitHub. The sunken, dry lake bed is located about 20 miles southwest of Willcox, and many meteorites have been documented as found there. A meteoroid shown entering the atmosphere, causing a visible meteor and hitting the Earth's surface as a meteorite Radar and other data indicate that meteorites did reach the ground from this event. The parent meteoroid had a kinetic energy equivalent to 5 to 50 ktons when it hit the top of the atmosphere. AMDS What does the science say about the origin of the SARS-CoV-2 pandemic? Second largest meteorite discovered in the United States. Still pretty warm there now, suppose to be about 114 this weekend there. Over 4450 meteorite specimens with a total mass of 168 760 g have been found in the Gold Basin (L4) strewn field over an area of 225 km 2 . Does it have a dark brown or black crust. Oxidation is likely to have occurred soon after the fall, when exposure to precipitation was at its maximum. Go onto Google earth and you will see the valley just south of the peak, and north of the park boundary, this is where you start. I arrived at my destination late afternoon and set up camp, which basically just consisted of parking my truck. I believe that Joes discovery of the L6 meteorites in Nevada will tie it all together. NASA is home to the world's leading extraterrestrial sample scientists, as well as the most extensive collection of extraterrestrial materials on Earth. As far as I know there are only a couple for the Arizona strewn fields. You will discover interesting rocks in numerous places across the desert Southwest, many of them mentioned in DesertUSA articles . This symposium will celebrate the renaming of the Center for Meteorite Studies in honor of Regents Professor Peter R. Buseck. Is there any online site that can provide maps of strewn fields that can be. Allen in MT Each point on the map below represents a location in Arizona where a meteorite has been found! This step-by-step guide will show you how to locate possible meteorite Get the latest University of Arizona news delivered in your inbox. These instructions will show you how to best preserve the meteorites you paul Muller (20+ Dig Sites Across The State) $10.00 20 Dig Sites within 1 to 3 hours from Phoenix. The largest fragment discovered from the meteorite that formed Meteor Crater, exhibited at the tourist center in Meteor Crater, Flagstaff, Arizona. If you saw this event, please report it here: Hats off to Joe. One meteorite strewn field lies in Arizona's Mojave County, where the University of Arizona has worked to recover and analyze fragments and map the impact area. The meteorite was found in 1976 by three prospectors in the Old Woman Mountains of San Bernardino County. If you decide to give this place a try there are some things to consider. Meteorites cool rapidly and generally are not a risk to the public. (Find Of a Lifetime! Jull, L. R. McHargue, P. A. Iron meteorites come from the core of differentiated bodies. Most meteorites have been found by walking with the aid of a metal detector (Dennis Asher, personal communication). William E Southern Jr. Image: Kenkmann, T., Sundell, K.A., and Cook, D., 2018, Evidence for a large Paleozoic Impact Crater Strewn Field in the Rocky Mountains: Scientific Reports 8, Fig . Not only was Ron instrumental in helping me obtain samples of other Lucerne Valley Meteorites in the Griffith Observatory collection for classification, but we also . Irons are made primarily of iron and nickel in varying proportions. WikiZero zgr Ansiklopedi - Wikipedia Okumann En Kolay Yolu . My brother Dale visiting from Florida, after a few days in the field. Mssbauer analyses indicate the sample is 30 to 35% oxidized. This meteorite is several miles north of my 34 pounder so I know its big. Many meteors have been found around the state, as online maps attest. 3 fireballs If the sample passes these tests, it's time to get an expert opinion. ], Meteor Crater, near Winslow, Arizona, from the southeast; the uplift around the rim can be seen. When researching meteorite hunting areas the first place I look is the metbul, the meteoritical bulletin, here: http://www.lpi.usra.edu/meteor/metbull.php. The scarecrow in this map represents the 10g marker. The Buck Mountain area is also popular for hiking and camping, with a popular fire tower on Buck Mountain itself that may help you get an idea of the terrain surrounding the range. For information on NASA programs that track astromaterials and meteorites: Our mission is to protect, preserve, and distribute samples for study from discover and how to make contact with the organizations that are willing Home. Many believe the official classification should be changed to L4-6. This isnt the farthest north rock found. More information: https://meteorites.asu.edu/news/cbm-in-memory, As predicted, ~1m diameter Asteroid 2023 CX1 exploded over the English Channel this morning. A.} Finding Meteorites. Make a request and it will get posted. Though it can't be seen, Lake Meade is out there behind the mountain. Four other new meteorites were also found in the Gold Basin strewn field.". Something out-of-this-world is happening in #Normandy, France! We released V6 of the search probability map. The parent meteoroid had a kinetic energy equivalent to 5 to 50 ktons when it hit the top of the atmosphere. . Walter Zeitschel (Hanau, Germany) In many cases we would find only 1 piece or 2, knowing that somewhere a much larger mass was nearby. the future might hold for mankind. We had a roughly 16km area in which meteorites were most likely to have landed - known as a strewn field. Geplaatst op 3 juli 2022 door There are several individuals and organizations -- with catalogs or websites -- that buy and sell meteorites or can help identify suspected meteorites including: New England Meteoritical Society (Mendon, MA) Speaking of Google Earth, has anyone figured out how to overlay or create multiple vectors on the maps??? Here are a few links to the people and institutions Franconia Map The City of Franconia is located in Mohave County in the State of Arizona. Hey Dave back in the day there was a guy from Kingman that passed away and I held a Memorial Hunt for him at Franconia and there was some funds raised to put up a memorial bench in Kingman. New posts Top Treasure Finds Search forums Members Current visitors New profile posts Search profile posts. Would you like one for the Canyon Diablo strewnfield? 161 drill holes were completed (see interactive map below) and over 2,500 m of . Sure, we all had an idea that the strewn field crossed the lake, we all drew lines, but only one guy had the steel to go get it done. Committed to diversity and inclusion, the University strives to build sustainable relationships with sovereign Native Nations and Indigenous communities through education offerings, partnerships, and community service. Some make a living from locating fall sites and examining the strewn fields where the . I am enclosing a picture of the meteorite strewn field extended from Jim Smallers original map, this map is a few years old, a lot more have been found since.. You need to be a member in order to leave a comment. Conditions in the Gold Basin, which is now part of the Mojave Desert, were wetter and cooler at the time of the fall. 34 pounds of fragments from a single stone. Chase Goldman Though it cant be seen, Lake Meade is out there behind the mountain. Started 2 hours ago, By Was it Jim Smaller? George Kinsey Letters for publication should be sent to: Call the main Guardian and Observer switchboard: 2016 Guardian News and Media Limited or its affiliated companies. scientist within the ARES Division at the Johnson Space Center in Houston, Texas. The Old Woman Meteorite weighing in at 6070 pounds (2750 kgs) during its stay at the Smithsonian had a large chunk removed which weighed 942lbs. Powered by Invision Community, Metal Detecting & Gold Prospecting Forums. There is a growing "counterfeit" problem among meteorite sales.). . D. A. Kring, A. J.T. They are named Coyote Mountains, Dos Cabezas, Fish Canyon, Golden Rule, King Tut, Ragged Top and Wildcat Peak.It's no coincidence that more Arizona meteorites are turning up, Kring says. In northeastern Arizona, however, petrified wood like the specimens that are protected in Petrified Forest . Casual Collection: Meteorites may be casually collected (i.e., free and without a permit), pursuant to BLMs regulations at 43 CFR 8365.1-5. You can probably hookup with someone depending on your "entry level" (meteorite knowledge, detector type and ability to use it effectively, persistance, initiative), and what state you live in. Depending on how you measure it, this is the largest stone meteorite found in the state of Nevada at the time of this writing. nhs waiting list for acl reconstruction. NASA does not maintain collections of meteorites found in the United States. This website is best viewed in portrait mode on mobile devices. desertdog56February 22, 2011 in METEORITE HUNTING and COLLECTING. Mogollon Rim and White Mountains of Arizona, Hunting, camping, outdoor sports, meteorite hunting. Photo by author. Two of my personal favorites are "Rocks From Space" by O. Richard Norton, (Mountain Press, Missoula Montana) and "History of Meteorites" by Astronomical Research Network (Maplewood, Minnesota). This is an estimate which may change if information about the meteor direction and descent angle updates. Artwork by Laura Atkins, Occasionally I sell on eBay under the name Alienrockfarm, Copyright 2018 Cosmic Connection Meteorites All Rights Reserved (Meteorites For Sale In America), Hunting, Collecting, and Trading Cosmic Related Rarities Since 1998. Arizona and the southwest have large tracts of desert where many meteorites have been, and continue to be, discovered. and McHargue, {L. R.} and Bland, {P. Meteorites Found in the Republic of the Philippines - Map "click on image to enlarge" Meteorites Found in The Republic of The Meteorites and Impact Craters Found in Texas, USA - Map "click on image to enlarge" Meteorites Found in Texas, USA v.1 C 2013 Saudi Arabia Meteorites and Impact Crater Map with KMLs - "click on image to enlarge" Michigan Meteorites and Impact Crater Map With KMLs "click on image to enlarge" Michigan Meteorites and Impact Crater Map c20 Nevada Meteorites Map with KMLs "click on image to enlarge" Nevada Meteorites Map with KMLs c2013 LunarMeteoriteHunter / Mete Germany Meteorites and Impact Craters Map -Deutschland Meteoriten Karte "click on image to enlarge" Deutschland Meteoriten K Meteorites Found in North Carolina - Map "click on image to enlarge" North Carolina Meteorites Map v.1 C 2013 LunarMeteoriteHun Meteorites and Impact Craters Found in Missouri - Map "click on image to enlarge" Meteorites Found in Missouri v.1 C 2013 Luna Georgia, USA Meteorites Map With KMLs "click on image to enlarge" Meteorites Map of Georgia c2013 LunarMeteoriteHunter / Mete Meteorites Found in the United Kingdom - Map "click on image to enlarge" United Kingdom Meteorites Map v.1 C 2013 LunarMeteo 2013-2018 LunarMeteoriteHunter. NASA is examining reports of an atmospheric fireball about 6 p.m. EST, Feb. 15, near McAllen, Texas. The distant valley at the top of the image is the original Gold Basin strewn field in Arizona. Together they form a unique fingerprint. They may restrict public access to their personal maps for obvious reasons. Home Map of GeoWyo Top Spots Albany-Laramie Counties . One of the most famous, if not the most valuable meteorite to be scrutinized by NASA and the news media, was found in Antarctica (Allan Hills) in 1984. My first Nevada side Gold Basin find. If you see a meteorite fall, it's important to record the exact date and time, geographical location, visible landmarks, approximate angle of descent and impact, color, size and shape of the object and whether or not you heard any sounds or explosions. This hyper-rock created an unimaginable explosion, most of it disintegrating upon impact, but throwing small pieces over a 12 mile area. It takes a bit more research to find the densest areas of specimens, where rockhounds may stand a chance of finding their own elusive stone from space. This is less than that in meteorites with similar ages found in eastern New Mexico, but comparable to that found in meteorites from the Sahara and the Nullarbor Region. Newfoundland and Labrador Meteorite and Impact Cra Michigan Meteorites and Impact Crater Map, Saudi Arabia Meteorites and Impact Crater Map - , Germany Meteorites Map - Deutschland Meteoriten Karte, https://www.google.com/about/company/user-consent-policy-help.html. Found a lot of gold and meteorite's in Gold Basin. It's on my websiteCheers, Unc. The strewn fields are freely available for use with Google Maps, in the form of KML files. Treasure Hunting message board - Enter meteorite in the search box on the top right above the logo. If you have any specific questions feel free to email me. Take a look on this forum thread for the strewn field.. Scroll down to Uncle Ron's post from November 23, 2014. Meteorite strike zones or "strewn fields" can reap rewards for years, such as the Gold Basin in Arizona, which has yielded thousands of specimens since its first discovery in 1995. The distant valley at the top of the image is the original Gold Basin strewn field in Arizona. title = "Gold basin meteorite strewn field, Mojave desert, Northwestern Arizona: Relic of a small late pleistocene impact event". Read More: Real vs Fake Moldavite: How Can You Tell the Difference? / Kring, D. A.; Jull, A. Always dress appropriately and bring plenty of water. They are also known for having magnetic qualities because of a high iron content, so collectors sometimes use special metal detectors to help locate specimens. There are plenty of BLM controlled land in Arizona where you can legally find success in adding to your personal rockhound collection. -LunarMeteoriteHunterATgmailDOTcom (c)2013-2022 Dirk Ross, Tokyo, Japan Sunday, 6 October 2013 Nevada Meteorites Map Nevada Meteorites Map with KMLs If you happen to be ice-biking, or 4-wheeling or prospecting near glaciers or ice fields, keep in mind that solitary rocky material is seldom found embedded in ice, and if you see one, it could be a rare kind of meteorite. They include Coyote Springs, Starvation Flat, Palo Verde Mine, Chicago Valley, Blue Eagle, Moapa Valley and Yelland Dry Lake. James Bond novels being reworked to avoid offending readers. This crater, nearly a mile in diameter and 600 deep, was created in 10 seconds, about 50,000 years ago by a 100-foot diameter chunk of iron and nickel traveling about 40,000 mph. This signature appears only five seconds after the fireball terminus, as recorded by a video found on the AMS page for this event. It is the oldest and among the largest of. They may restrict public access to such maps for obvious reasons. At What Cost Did My Family Pay For My Addiction? Occasional large twinned plagioclase crystals are also present with Fe-Ni metal and troilite largely confined to the matrix. Oxidation is likely to have occurred soon after the fall, when exposure to precipitation was at its maximum. The south side produced some large pieces, back in the day. Land use permits are issued by the local BLM office in accordance with the regulations in 43 CFR 2920. Specimens from all these areas can be seen at many area rock shops or rock shows. Although most of them were found many years after they fell from the sky, some were actually seen (as a fireball or . ). Well, if you're observant, persistent and a little bit lucky, there may be some bucks waiting out there in the boondocks, just under your noseand literally right out of the blue. If you think you've found a meteorite, three preliminary tests should be performed: If you can answer "yes" to all three questions, there is a chance that you may have a meteorite. Bland, D. H. Hill, F. J. Berry, Research output: Contribution to journal Article peer-review. Meteorite type: H6, ordinary chondrite. Gold basin meteorite strewn field, Mojave desert, Northwestern Arizona: Relic of a small late pleistocene impact event. I found my first two strewnfields with lots of research/data mining, and a hell of a lot of four-wheeling, and hiking. View from the Nevada side of Gold Basin. Please try to be specific, and forum members will try to answer you resonably. Anybody still hunting Franconia with results? Petrified Wood. Also located in Mohave County, the Buck Mountain Wash area lies 10-12 miles southeast of Yucca. Instead, these meteorites are curated by the Smithsonian Institution and other scientific and academic institutions around the country. This is also a large geographical area with many documented meteorite finds, which have been documented by various websites and forums. Threw alot of nice ones away as hot rocks before they were identified as meteorite's. When asked how I know its GB I say that the classification is consistent, they look the same in hand, on the exterior and the interior, and they are in line with the logical progression of the known field. publisher = "The University of Arkansas Press", Gold basin meteorite strewn field, Mojave desert, Northwestern Arizona: Relic of a small late pleistocene impact event, https://doi.org/10.1111/j.1945-5100.2001.tb01944.x. As a side note: (Magnets will be attracted to 95% of all meteorites, so that is a simple preliminary test you can make in the field.). Please start at the beginning, and introduce yourself. to accept and analyze your find. These zones can cover just a couple of square acres (Holbrook, Arizona) or several thousand square miles (Namibia, Africa). No meteorites found . Clear editor. The applicant must pay an application fee, a purchase price based on either a unit price or a percentage of the fair market value of the removed material, and a reclamation fee as appropriate. Conditions in the Gold Basin, which is now part of the Mojave Desert, were wetter and cooler at the time of the fall. Studying Meteorites. Most meteorites that have recently arrived on Earth will have a dark brown or black fusion crust on their surface, the result of a high-speed entry into the atmosphere. Stealing specimens from any National Park is illegal. You can also put them on google earth as pushpins, a helpful tool. A research unit of the School of Earth and Space Exploration. Fun place and always produces meteorites, along with .50 cal, .30 cal, bits of wire, ect. Mylandmatters.org has a meteorite strewn field map that is interactive. Geology, maps, & pictures. Started Monday at 03:35 PM, By Meteorites often have a dark brown or black crust from passing through the earths atmosphere. Where Do I Look for Rocks and Minerals? We usually camped on the S. side about 3/4 mile off the highway. Bombardment:ShapingPlanetarySurfacesandTheirEnvironments2018(LPIContrib.No.2107). The piece with the scale cube on it weighs over 10 pounds and the one by the GPS was about 4 pounds. (20+ Dig Sites Across The State), Where To Find Desert Rose Rocks in Arizona, Where To Find Obsidian In The Arizona Desert. The Gold Basin asteroid was probably around 40-60 inches in diameter and it hit the top of the atmosphere with a kinetic energy equivalent to ~10 to 1000 tons of TNT. This is less than that in meteorites with similar ages found in eastern New Mexico, but comparable to that found in meteorites from the Sahara and the Nullarbor Region. Instrumentally observed meteorite falls provide unique opportunities to recover and analyse unweathered planetary samples supplemented with the knowledge on the Solar system orbit they had. Colorado has 90 official known meteorites that have been found in the state. The parent meteoroid had a kinetic energy equivalent to 5 to 50 ktons when it hit the top of the atmosphere. The meteorite is a breccia, composed only of fragments of L-chondrite materials. When samples such as the remnants of this event are collected and studied, they enhance our understanding of the origin and evolution of our solar system and our local natural space debris environment. This website is best viewed in landscape mode on tablet devices. doi = "10.1111/j.1945-5100.2001.tb01944.x". Decomposing granite has likely buried the stones too deep for detection. Joe and I have decided we are pretty much done out there for now. N2 - Over 4450 meteorite specimens with a total mass of 168 760 g have been found in the Gold Basin (L4) strewn field over an area of 225 km2. Alais was the first recognized carbonaceous chondrite, and occurred just 3 years after the historic fall at LAigle convinced the scientific community that meteorites could, indeed, fall to Earth. Started February 25, By Day trips to Lake Mead or the Franconia strewn field to look for meteorites . Bethany Sciences (New Haven Connecticut) I find I spend much more time looking on the web and other places for information than I do in the deserts and mountains, but my time in the boonies is better spent after doing the research.