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Allan Hills 84001 ( ALH84001 [1]) is a fragment of a Martian meteorite that was found in the Allan Hills in Antarctica on December 27, 1984, by a team of American meteorite hunters from the ANSMET project. Like other members of the shergottite – nakhlite – chassignite (SNC) group of meteorites, ALH84001 is thought to have originated on Mars.
3 days ago · An Update from ALH84001. New research funded by elements of the NASA Astrobiology Program shows that the organic material in the famous Martian meteorite ALH84001 was not formed biologically, but rather by geochemical interactions between water and rock. The Allan Hills 84001 meteorite. Image credit: NASA/JSC/Stanford University. For years ...
Martian Meteorite Compendium C Meyer 2012 Figure 8: Composition diagrams for carbonates in Martian meteorite ALH84001. This is figure 3 in Harvey and McSween (1996). Figure 7: Composition diagram for pyroxene in ALH84001. Only trace olivine and augite is present, with most of the sample orthopyroxene. Data replotted from Berkley and Boynton (1992),
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ALH84001, meteorite determined to have come from Mars and the subject of a contentious scientific claim that it contains the remains of ancient life indigenous to the planet. Recovered from the Allan Hills ice field of Antarctica in 1984, the 1.9-kg (4.2-pound) igneous rock is thought to have.
- Harry Y. Mcsween
What is ALH 84001, the Mars meteorite with the possible fossils? ALH 84001 is a meteorite, a rock that fell to Earth from space. It was found in December 1984 in Antarctica by a U.S. meteorite-hunting expedition. When it was found, ALH 84001 weighed about 4 and 3/4 pounds (1.93 kilograms). It was shaped like a rounded brick or a large potato ...
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Is ALH84001 a Martian meteorite?
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Are polycyclic aromatic hydrocarbons indigenous to the Martian meteorite ALH84001?
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In examining the martian meteorite ALH84001 we have found that the following evidence is compatible with the existence of past life on Mars: (i) an igneous Mars rock (of unknown geologic context) that was penetrated by a fluid along fractures and pore spaces, which then became the sites of secondary mineral formation and possible biogenic ...
Feb 1, 2022 · The Allan Hills 84001 (ALH 84001) martian meteorite is an approximately four billion-year-old igneous rock composed primarily of the mineral orthopyroxene. It was discovered in Antarctica in 1984 and subsequently studied for its record of the early geological history of Mars.
