California Institute of Technology: Info From Ancient Rocks Upends Popular Theory
August 08, 2026
August 08, 2026
PASADENA, California, Aug. 8 (TNSjou) -- The California Institute of Technology issued the following news:
* * *
New Info from Ancient Rocks Upends Popular Theory
These pyrobitumen-rich Karelian rocks contain an unusual carbon-isotope signal.
-
Roughly 2.5 to 2 billion years ago, the earth's surface experienced the biggest chemical change in its history when oxygen became abundant in the atmosphere, eventually leading to the . . .
* * *
New Info from Ancient Rocks Upends Popular Theory
These pyrobitumen-rich Karelian rocks contain an unusual carbon-isotope signal.
-
Roughly 2.5 to 2 billion years ago, the earth's surface experienced the biggest chemical change in its history when oxygen became abundant in the atmosphere, eventually leading to the . . .