66.15 unit 65' becomes A massive CLAY with abt 27o large mica FLAKES. Sy 5/1 Sequoia frags present. 67.5 Clay becomes a SILT with abt 57o large mica flakes Then 67.6 - Vf.g SA, 3-5%omic, non-indurated massive, grp xl bearing, x sph carrying spheres of kimowite STAINED on cemented sand with gr center, 10YR 7/2 color of ss. at 68.3 CONTAINS very large log of petrified wood. SAMP A -C-1-4 70 Covered, 71.8- whi color 10R4/4 Broken pieces of 10R4/4 CALC, CONCS, CONTAINING