Antarctic radioactive dating of meteorites
Despite there being no convincing evidence of Martian life, the initial paper and scientific and public attention caused by it are considered to be turning points in the history of the developing science of astrobiology.
In September 2005, Vicky Hamilton of the University of Hawaii at Manoa presented an analysis of the origin of ALH84001 using data from the Mars Global Surveyor and Mars Odyssey spacecraft orbiting Mars.
An oversight in a radioisotope dating technique used to date everything from meteorites to geologic samples means that scientists have likely overestimated the age of many samples, according to new research from North Carolina State University.
But that model doesn't account for differential mass diffusion -- the tendency of different atoms to diffuse though a material at different rates.This time the samples are from the merchant vessel Ghost wreck and the warships Sword and ...) is a meteorite that was found in Allan Hills, Antarctica on December 27, 1984, by a team of U. However, it does not fit into any of the previously discovered SNC groups.This function is able to tell researchers how old a sample is. But there's a wrinkle in the process that has been overlooked.The ratios of strontium-86 to rubidium and strontium-87 are thought to only be influenced by the radioactive decay of the rubidium-87 into strontium-87.