4.6 billion-year-old meteorite could reveal how Earth formed different layers

[Admin]

One of the oldest meteorites ever discovered, the 4.6 billion-year-old Erg Chech 002 discovered in the Sahara desert in 2020, could reveal vital information about the formation of the solar system.

4.6 billion-year-old meteorite could reveal how Earth formed different layers : Read more

 

[waynebaal]

That's not a 4.6 billion year old meteorite. That's the month old slice of pizza I found under my bed!

 

[rod]

"To determine the age of Erg Chech 002 as 4.566 billion years old, the team measured the amounts of lead isotopes within it, but this, ironically, could have provided scientists with a way of improving another dating strategy for similar meteorites."

I checked some other reports on this meteorite and found some other ages assigned too, not commonly reported to the public. My note, this report provides a younger age 4.510E+9 years old with cosmic ray exposure age of about 63.5 Myr old. Thermal history of the Erg Chech 002 parent body: Early accretion and early differentiation of a small asteroid, https://ui.adsabs.harvard.edu/abs/2023arXiv230212753N/abstract, February 2023. “Using noble gas mass spectrometry and incremental heating, an Ar-Ar plateau age of 4510 ± 40 Ma and a cosmic ray exposure age of 63.5 ± 24 Ma were determined Takenouchi et al. (2021). The Ar-Ar age corresponds to a closure time of 57.9 ± 40 Ma after CAIs.”, https://arxiv.org/pdf/2302.12753.pdf, 27-Feb-2023.

Perhaps, someday like the new Pentagon website for reporting UAP/UFOs, a central repository for reporting all different ages obtained when measuring meteorites will be disclosed. Same for geology too when dating different rocks.