7/14/82 A. Powell H. Dingus 1225 Iridium hill Again? (1) Iridium Trench Quicks & dirty sect 0 MASSIVE greenish gray, limonite STAINED MUDST w RARE pl frags & manganese COATINGS on JOINTS 2.4 Gradual TRANS to greenish yellow massive st mudst uppermost 4 dom w vert roots & limonite yell. STAINING 3.7 Vfg S Vfg Silty ss wh light greenish yell & orange mottled, limonite nodules generated by roots SITY at base becoming sandy upward - to 3.9 then a mudst w CARB blebs & fillings root CASTS. 4.2 An obvious soil (perjorated) Highly disrupted CLAY, SILTY MATRIX w vert thin ROOTS 4.3 becomes full of disseminated CARBON - steel bl gray in color, roots, clay blebs RARE.