230 Silty, carbonaceous clay grading to siltstone. 270 Fine to medium-grained, likely micaceous sandstone. 271-6 Shaly semi-hard silty clay. 271-10 Coal shale, minor coal & bone. 274 Dark gray to black claystone, pyritic. 280-1 Gray shale, silty, interlaminated fine sandstone in upper part. 286 Coal. 286-6 Black silty clay & shale. 289 Argillaceous limestone. 295 Silty claystone and siltstone with stringers and interlunions of limestone and ironstone. 297 Gray, dry shale, limestone & ironstone nodules 303-6 interbedded fine sandstone and siltstone 311 Gray to dark gray clay shale, limestone locally. 314-8 Fragmental hard clay (Belvidera LF). 323-4 Silty carbonaceous clay grading to silty claystone 330 Soft to semi-hard clay, locally silty and shaly. 337 Silty claystone 337-6 Pyritic claystone 338-1 Bone, minor coal 341-6 Dark gray, silty claystone 344-6 Fine sandstone, interbedded dark shale 357-1 Gray and black shale 359-11 Coal 360-6 Gray shale 362-6 Argillaceous limestone and limy claystone 371-10 Silty claystone 376-6 Silty, shaly and shaly siltstone, clay shale at top and base. 380 Silty claystone 384-6 interbedded siltstone and fine sandstone. 388 Silty, shaly claystone, 8" fine sandstone at base. 392 Black to coal shale 392-1 Coal 397 interbedded silty claystone, siltstone and sandstone 50