

"*-: ">-''^i..""-* 



Core 1-4 Feet, Beach, 6000 X 



Core 1-4 Feet, Beach-Dune, 6000 X 



Core 6-2 Feet, Worn Beach, 6000 X 





-•OK* 



Core 6-2 Feet, Beach, 3800 X 



Figure 21. Electron micrograph of quartz sand grains showing beach and dune surface 

 textures. 



52 



