Multiple Choice
The Matuyama-Brunhes magnetic reversal (when the world's magnetic field suddenly reversed) is a key stratigraphic marker. It can be identified both in sea cores and in volcanic strata ashore, where it can be dated precisely with potassium-argon samples. The Matuyama-Brunhes event occurred about
A) 25,000 years ago.
B) 15,000 years ago.
C) 780,000 years ago.
D) 425,000 years ago.
Correct Answer:

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Correct Answer:
Verified
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