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How old is the Earth?!

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Author Topic:   How old is the Earth?!
IrishRockhound
Member (Idle past 4466 days)
Posts: 569
From: Ireland
Joined: 05-19-2003

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Message 44 of 65 (41356)
05-26-2003 12:03 PM 		Reply to: Message 42 by lpetrich
05-24-2003 10:21 PM

Re: Faint Young Sun?
The actual temperature of the Earth's surface has more to do with the output of volcanos, mid-ocean ridges, etc. over long periods of time than the heat of the sun. The geological record has shown that when tectonic activity was low the temperature of the Earth was also low.
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The reasoning behind this is long and complicated, and I'll post it if anyone really needs to hear it.
​
The Rock Hound
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