It is theorized that the true age of the earth is about 4.6 billion years old, formed at about the same time as the rest of our solar system. The oldest rocks geologists have been able to find are 3.9 billion years old. Using radiometric dating methods to determine the age of rocks means scientists have to rely on when the rock was initially formed (as in - when its internal minerals first cooled). In the infancy of our home planet the entire earth was molten (melted) rock, a magma ocean.
Since we can only measure as far back in time as we had solid rock on this planet, we are limited in how we can measure the real age of the earth. Due to the forces of plate tectonics, our planet is also a very dynamic one; new mountains forming, old ones wearing down, volcanoes melting and reshaping new crust. The continual changing and reshaping of the earth's surface that involves the melting down and reconstructing of old rock has pretty much eliminated most of the original rocks that came with earth when it was newly formed. So the age is a theoretical age.
2006-08-29 03:28:42
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answer #1
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answered by Anonymous
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7
2006-08-29 03:27:42
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answer #2
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answered by Anonymous
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It started the moment I was born. May 30, 1963 at 10:15 PM EST.
2006-08-29 03:28:12
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answer #3
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answered by Steve R 3
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Considering today is the 5th of Elul, 5766 on the Jewish calendar, I'd say the earth is about 5766 years old.
2006-08-29 03:32:25
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answer #4
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answered by Document Guy 2
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unknown, a guess would be about 12 Billion years
2006-08-29 03:27:05
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answer #5
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answered by Anonymous
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Older than u and I... may not be here much longer
2006-08-29 03:31:23
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answer #6
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answered by lolitakali 6
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I would say it's as old as dirt.
2006-08-29 03:27:50
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answer #7
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answered by EMAILSKIP 6
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