geo000656 16

own an charcoal be trace nost en-f two or ace ma-ring the from V2 ividence a heavy Springs e to our •y bones id bone. rded by t of the ; w all of osure of ovation 3 6 ) . In icluding een lost t inches th could of over-only an nks and >mposed M inute rburden i which, id char-t it m ay rich in :d into a re seen. ie layer, coal. In ncluded tie char­ts 2 feet SECTION OF ASH BED NO. I A - ERODED LAKE DEPOSIT B - ORIGINAL SURFACE WITH CHARCOAL G - BONES, ASHES, CHARCOAL D - BONES $ CHARCOAL MIXED WITH CLAY E - SOLID CLAY Fig. 36. Ash Bed 1, A rea 1: Profile. c . e . thick and which flanked the original excavation. There were bones and teeth (Fig. 37) w ith the charcoal, and shells were massed in and around it. Mam^ bone fragments, split while still green, were found in the ashes and in the shallower charcoal-bearing stratum. The extension of Ash Bed 1 in 1956 was made possible by the re­moval of more than 4 feet of lake-deposited overburden on the ridge by Orr w ith his drag-line and slip. This enabled me to open a trench 5 feet wide up the slope of the ridge following the contact zone between the two clav strata. This excavation was a continu-ation of work done in the peripheral zone in 1955. As noted in Chapter II, the charcoal deposit was not exposed in m y trench on the northern slope of the ridge. As in most Tule Springs sites, bones were poorly preserved and crumbled easily. In m any instances only bone splinters remained, outlining where bones had lain in 79