From the third graph on this website: http://www.soest.hawaii.edu/GG/HCV/haw_formation.h…
It says “Best K-Ar age (Ma)”
Does this mean Mean/Average Age or something else?
2 Answers
-
Ma = millions of years ago;
K-Ar Age is the time, measured
in millions of years ago, when
the lava that erupted from the
volcano over the “hotspot”
cooled to form solid rock
(basalt).
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Age Ma
