What type of sand/rock is Malibu Beach made of and where did that sand originate??

I've been searching this for a while, but the only results I've gotten were for Beach Hotels.

4 answers

Read this about the Geology:

GEOLOGY
Here where the Santa Monica Mountains meet
the Pacific Ocean, the coastline varies from
rocky bluffs to smooth sandy beaches.
Coastal development has interrupted natural
erosional and depositional cycles, as has the
construction of debris basins to prevent
landslides in the mountains. Therefore, sand
deposited on the beaches by the sea and
mountains is often supplemented by exotic,
trucked-in sand that originates in such urbanized
formations as the San Fernando Valley.

So the sand there may not be the original sand. What about contacting:
LA County Dept Beaches & Harbors @
beaches.co.la.ca.us/BandHMain.htm

Sra
Thank you SO much! This helped a lot!! Thank you!!!
its rocky
help me whit unscaunble words