What is the Earth's oldest rock?
Currently the oldest insitu rock layers of terrestrial origin
were discovered by Dr. Jonathan O'Neil and his colleagues, whose
work published in September of 2008, revealed rocks as old as
4.28 billion years of age in Northern Quebec, along the
Hudson's Bay coast, 40 km south of Inukjuak. This area is known as
the Nuvvuagittuq greenstone belt. They were dated by measuring the
decay of the element neodymium-142 which was present in the
However this is either the oldest rock material of Earth origin
or the oldest rock material found on Earth.
For further information, please see the related links below.
For information on the oldest material of terrestrial origin and
the oldest material found on Earth please see the related