- Changing Views of the History of the Earth - TalkOrins Archive
- Conventional ques of Radiometric Dating
- Confirmed Oldest Fragment of Early Earth is 4.4 Billion Years.
- What is Uranium? How Does it Work - World Nuclear Association
Changing Views of the History of the Earth - TalkOrins Archive
When solving a b problem seems impossible, break it into smaller steps.
Conventional ques of Radiometric Dating
Well, scientists just took one of geology's bgest controversies and shrunk it down to atomic size.
Confirmed Oldest Fragment of Early Earth is 4.4 Billion Years.
By zapping single atoms of lead in a tiny zircon crystal from Australia, researchers have confirmed the crystal is the oldest rock fragment ever found on Earth — 4.375 billion years old, plus or minus 6 million years. Confirmation of the zircon age holds enormous implications for models of early Earth.
What is Uranium? How Does it Work - World Nuclear Association
"We've proved that the chemical record inside these zircons is trustworthy," said John Valley, lead study author and a geochemist at the University of Wisconsin, Madison. Trace elements in the oldest zircons from Australia's Jack Hills range suggest they came from water-rich, granite-like rocks such as granodiorite or tonalite, other studies have reported.Uranium–thorium dating - pedia
Uranium lead dating technique:
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