How do we know? Determining the age of CAIs main content.

How do we know? Determining the age of CAIs

Part of Arthur Ross Hall of Meteorites.

B.3.1. How do we know- determining the age of CAIs

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How do we know that calcium-aluminum inclusions, or CAIs, are the oldest rocks that formed in our solar system? In a technique somewhat like the radiocarbon dating method used on fossils, researchers measure the amounts of certain forms, or isotopes, of the elements uranium and lead present in CAIs. Isotopes of u