known as chromium-54, in samples of meteorites that have come to Earth from Mars to estimate how much water was deposited on the Red Planet by asteroids. The uppermost layer of Mars contains the ...

Chromium, by contrast, is very common on Earth so it could not be correlated to a meteorite impact. Later, scientists found more evidence in the form of sulfur in the K-Pg layer but not in the ...

as well as minerals called nickel-chromium spinels and isotopes of osmium within the range typical for most meteorites. They also noted that the fragments had the characteristic dumbbell and ...

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Meteorites come in three basic types ... CAIs also include heavier elements, such as chromium and titanium. By studying the isotopic abundances of these heavy elements, meteoriticists can also ...

But it also showed that unlike Ryugu, the meteorites appear to have been altered ... also measured the abundances of manganese-53 and chromium-53 in the asteroid and determined that melted ...

as well as minerals called nickel-chromium spinels and isotopes of osmium within the range typical for most meteorites. They also noted that the fragments had the characteristic dumbbell and ...