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Although many agreed with an estimate of 3 million years, scientists were keen to attempt to place a more accurate date on the skeleton using a technique called isochron burial dating.This method involves measuring the ratios of different forms, or isotopes, of the elements aluminum and beryllium in the rocks surrounding the fossil.A team of international scientists has found the oldest record of life on Earth in Northern Quebec, dating back at least 3.8 billion years.Our solar system formed about 4.6 billion years ago. Not only is this rare and wonderfully preserved skeleton the most complete australopithecine -- a putative evolutionary ancestor of humans-- specimen ever discovered, but it is also one of the oldest hominid skeletons dated so far.
The discovery was made in the Nuvvuagittuq Greenstone Belt in Northern Quebec in rock known as "banded iron formations." These formations existed billions of years ago, a result of organisms reacting with dissolved iron in the water that covered the planet. Johnathan O'Neil, assistant professor at the University of Ottawa's Department of Earth and Environmental Sciences, holds a sample of rock taken from the area where he and the research team discovered microfossils of the oldest life forms ever found on Earth. As an amateur astronomer, Nicole can be found looking up at the night sky appreciating the marvels of our universe.She is the editor of the Journal of the Royal Astronomical Society of Canada and the author of several books.This technique is not restricted to bones; it can also be used on cloth, wood and plant fibers.
Carbon-14 dating has been used successfully on the Dead Sea Scrolls, Minoan ruins and tombs of the pharaohs among other things. The half-life of carbon-14 is approximately 5,730 years. dinosaurs the evolution alleges lived millions of years ago.Scientists believe that about 4.3 billion years ago, water already existed on Earth's surface.