u.m. Alamo Bluff 71y 57,4 upper 70. Very fissile 5yr 4/2 11y. Sh. some scat plant frags & selen A15. A1ly occ Wh 5yr 4/2 57.4 - 61/, at 54 Some limonite zones. which (10yr 61s could be local 11y, lenses. u-2 mbr some areas of Alamo bluff by more plastic less v.hav fissile sh Thinkers were -61 Clay becomes more plastic & lignitic upward. less fissile wh color 61 - 6 5.5 5y7/2 62.8 v.lignitic plastic n2 clay L1B, 21y B. End of of 65.5 same as 62.8 6538 C515 upper mb. G.v.