I wrote:
...That Hawaiian
beach is geologically very young (as is everything on the Big Island).

A minor postscript on this... I finally dug down to the issue of Science
with the paper on the Mars olivine, and interestingly enough, some samples
of "Hawaiian green sand beach olivine" are among his calibration references.
--
MOST launched 30 June; first light, 29 July; 5arcsec | Henry Spencer
pointing, 10 Sept; first science, early Oct; all well. |