The oldest solar system material found in meteorite

The researchers said, they found a lot of pea sized minerals in the meteorite, after careful analysis, found that they are the oldest known substance in the solar system.
The researchers said, the minerals formed in 4568200000 years ago, the birth of the solar system move forward in time for up to 2000000 years, at the same time that an exploding star formation during spray a lot of important material to the galaxy in the solar system. In 2004, scientists in Morocco found a weighing 3 pounds (about 1.5 kilograms) of extraterrestrial meteoritic, give the number of NWA 2364.
After an initial analysis, scientists had thought that the meteorite from an asteroid belt between Mars and jupiter. However, the latest test results show that, the residual of the fossil meteorites (calcium aluminum inclusion called) formed in the asteroid belt existed before. They may be formed in the interstellar gas and dust clouds part or collapse to form the sun, this conclusion forming theory and a sun coincide.
The United States Arizona State University researcher meteorite Research Center Assistant Audrey Bouville (Audrey Bouvier) led the implementation of the study. She said: "in the solar nebula near collapse after the start, substance and condensation, as temperatures dropped so, these inclusions formation." Bouville and colleagues at the Arizona State University Meenakshi Wadhwa (Meenakshi Wadhwa) of lead isotope ratios measured in the inclusion of a "original state", trying to uncover the mystery of the birth date.
Bouville said: "after correction, its age than previously estimated 300000 years ahead of schedule to 1900000 years, makes it the oldest history material." According to the cosmic time, two million years is a drop in the bucket, but it has great significance to the scientists speculate that the birth of the solar system. This explanation again relates to isotope, this will be replaced by the iron -60, this isotope is formed in a supermassive star in end of life becomes a supernova explosion.
In a previous study, some scientists have in mineral inclusions in iron meteorites found on -60, and thus infer that these substances to form time than the birth of the solar system two million years later. However, since the history of the solar system two million years earlier than previously estimated, meteorite inclusions in -60 isotope age may be pushed forward for two million years. Because the number of atoms of iron -60 every two million years after the change of attenuation half, iron -60 in the solar system's initial is nearly two times the number of previously estimated.
According to Bouville introduction, only can let so much iron -60 into the reasons of the solar system, may be in the vicinity of the supernova. If the new research is confirmed, it will support a theory, namely the supernova will heavy metals as conceived in the solar nebula "seed", may 4570000000 years ago caused it to collapse.
Bouville said: "I think it's important, make people aware of the present on the solar system material by other stars brought in. Supermassive stars may explode near our solar system, but the explosion shock wave is far from solar system, not to destroy it, on the contrary, only these important elements transported in, created the conditions for the formation of planets and life." Research on Bouville's team published in the latest issue of "nature - Earth Science" (Nature Geoscience) magazine.