The Murchison meteorite is a meteorite that fell in Australia in 1969 near Murchison, Victoria. It belongs to the carbonaceous chondrite class, a group of meteorites rich in organic compounds. Due to its mass (over 100 kg or 220 lb) and the fact that it was an observed fall, the Murchison meteorite is one of the most studied of all meteorites.[2]
In January 2020, cosmochemists reported that the oldest material found on Earth to date are the silicon carbide particles from the Murchison meteorite, which have been determined to be 7 billion years old, about 2.5 billion years older than the 4.54-billion-year age of the Earth and the Solar System.[a] The published study noted that "dust lifetime estimates mainly rely on sophisticated theoretical models. These models, however, focus on the more common small dust grains and are based on assumptions with large uncertainties."[3]
^Meteoritical Bulletin Database: Murchison
^Botta, Oliver; Bada, Jeffrey L. (2002). "Extraterrestrial Organic Compounds in Meteorites". Surveys in Geophysics. 23 (5): 414. doi:10.1023/A:1020139302770. S2CID 93938395.
^Heck, Philipp R.; Greer, Jennika; Kööp, Levke; Trappitsch, Reto; Gyngard, Frank; Busemann, Henner; Maden, Colin; Ávila, Janaína N.; Davis, Andrew M.; Wieler, Rainer (13 January 2020). "Lifetimes of interstellar dust from cosmic ray exposure ages of presolar silicon carbide". Proceedings of the National Academy of Sciences. 117 (4): 1884–1889. Bibcode:2020PNAS..117.1884H. doi:10.1073/pnas.1904573117. PMC 6995017. PMID 31932423.
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The Murchisonmeteorite is a meteorite that fell in Australia in 1969 near Murchison, Victoria. It belongs to the carbonaceous chondrite class, a group...
represent only a small proportion (4.6%) of meteorite falls. Some famous carbonaceous chondrites are: Allende, Murchison, Orgueil, Ivuna, Murray, Tagish Lake...
intact rocks on Earth. Meteorites that were formed in other planetary systems can pre-date Earth. Particles from the Murchisonmeteorite were dated in January...
Carolina Murchison Highway, a road in Tasmania Murchison letter, a political scandal in 1888 in U.S. Murchisonmeteorite, which fell in 1969 near Murchison, Victoria...
Uracil that was formed extraterrestrially has been detected in the Murchisonmeteorite, in a near-Earth asteroid, and possibly on the surface of the moon...
based on 12C/13C isotopic ratios of organic compounds found in the Murchisonmeteorite, suggested that xanthine and related chemicals, including the RNA...
returned to Earth. Glycine had previously been identified in the Murchisonmeteorite in 1970. The discovery of glycine in outer space bolstered the hypothesis...
applications to microscopic grains. In January 2020, analysis of the Murchisonmeteorite found in Australia in 1969 revealed that its stardust formed 5 to...
have experienced extensive aqueous alteration. The much studied Murchisonmeteorite, which fell in Australia in 1969, is the best-known member of this...
such as lamproite. Analysis of silicon carbide grains found in the Murchisonmeteorite has revealed anomalous isotopic ratios of carbon and silicon, indicating...
Studies of the 12C/13C isotopic ratios of organic compounds in the Murchisonmeteorite suggest that the RNA component uracil and related molecules, including...
These included all of the primary alpha-amino acids found in the Murchisonmeteorite, which fell on Australia in 1969. A subsequent electric discharge...
intact meteorite. Kaidun – An unusual carbonaceous chondrite. Mbozi meteorite – A 16-metric-ton ungrouped iron meteorite in Tanzania. Murchison – A carbonaceous...
can sustain. Laboratory experiments showed that material from the Murchisonmeteorite, when ground into a fine powder and combined with Earth's water and...
Marilyn L.; et al. (2008). "Extraterrestrial nucleobases in the Murchisonmeteorite". Earth and Planetary Science Letters. 270 (1–2): 130–136. arXiv:0806...
complex is Cu(HNC5H9CO2)2(H2O)2. Pipecolic acid was identified in the Murchisonmeteorite. It also occurs in the leaves of the genus Myroxylon, a tree from...
university as a research professor in analyzing the recently recovered Murchisonmeteorite. Sandra Pizzarello died on October 24, 2021. Sandra Pizzarello's...
Individual Hydrocarbon Molecules in Bituminous Coal, Oil Shale and MurchisonMeteorite". Journal of Astronomy and Space Sciences. 15 (1): 163–174. Bibcode:1998JASS...
sterile and not capable of generating life. The discovery of the Murchisonmeteorite also led to the finding of 70 amino acids most of which are not native...
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