thumb | right | Earth from space The study relying on samarium - neodymium isotopic data place the age of rocks 250 million years older that the previously dated Acasta gneiss. The Acasta gneiss in Canada's Northwest Territories is dated at 4030 million years. Previous studies on the mineral ages of zircon found in younger rocks from Western Australia have indicated 4360 million years. If correct, the new data will give more information on the formation of the earliest crust of earth in the Hadean era, about 300 million years after the formation of earth itself. Stephen J. Mojzsis, a professor of geological sciences at the University of Colorado suggest that the rocks may be actually younger, with some remnants of 4280 million year rocks included in it. “ I hope that I ’ m wrong, ” Dr. Mojzsis said. “ If that happens, I believe there will be a land rush by geologists to northern Quebec. ”
 Earth from space The study relying on samarium-neodymium isotopic data place the age of rocks 250 million years older that the previously dated Acasta gneiss. The Acasta gneiss in Canada's Northwest Territories is dated at 4030 million years. Previous studies on the mineral ages of zircon found in younger rocks from Western Australia have indicated 4360 million years. If correct, the new data will give more information on the formation of the earliest crust of earth in the Hadean era, about 300 million years after the formation of Earth itself. Stephen J. Mojzsis, a professor of geological sciences at the University of Colorado suggest that the rocks may be actually younger, with some remnants of 4280 million year rocks included in it. " I hope that I ' m wrong, " Dr. Mojzsis said. " If that happens, I believe there will be a land rush by geologists to northern Quebec. "
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