Unit Thickness(m) 12 6.20 vfg med tan er 1-2 ss 13 .85 lignite & lig.sh.(er1) 14 8.15 fine grain silt/mudst, bedded tannish grey with thin chippy siderite concretions (er.2) 15 25.5 brown siltst, friable with scattered siderite conks in lower portion to .35m becoming a ledgy ss in upper portion (er.3) ledges flatbedded in upper portion (er.7), vfg ss. above 7.5m ss increasing massive, tan, slightly friable w/ thinner platy brown flat bedded ss, (er.5)