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APOLLO 16 ANORTHOSITE
Anorthosite is an important rock type of the lunar highlands and probably
formed the primitive lunar crust. This
sample has been determined to be 4.19 billion years old by
the Argon method of dating. This date corresponds to the formation of
a large lunar impact basin from which the rock was thrown. Other studies
indicate that the rock lay exposed on the lunar surface for 8.6 million
years after it was moved again by the formation of Spook crater.
LOCATION
OF THE APOLLO 16 LANDING SITE
THE
LANDING SITE IN THE DESCARTES HIGHLANDS VIEWED FROM LUNAR ORBIT
THE
ANORTHOSITE SAMPLE AS FOUND NEAR THE RIM OF SPOOK CRATER
  Breccia:
Shocked Rock
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