Station 650.01 650.02 650.C3 650.04 o— Depth, ft 10 — 15— 20 — 25 -— Legend Sand: F = Fine, - ‘ 7 oecium arse Note: Thickness of cemented layers Cemented Sand: H = Hard, indicated ut right of log. W * Weak Arrows at left of logs show Sand and Coral Fragments depth of instruments. Coral Rock Fig. 1.2——Logs of borings for ground-motion instrumentation, Operation Ivy (Eniwetok Atoll). 16