# Hole GC-7 7 (Denson) 59 Surficial 73-6 Siltstone, calc + clayey, dark+light gray (41/2" CL) 91 SS. mixed to fine 102 Shale, silty, dark, plants 129 Siltstone, sandy minor SS stringers top 136-1 Shale, clayey, dk, plants 137-4 Coal (15") H 161-6 LS? dark to light gray clayey+silty, micropelline. 193-6 Claystone, silty with honey pellets - gray green 231 SS. fine minor siltstone 248-6 Siltstone clayey, calc at base 252-6 Sandstone, Md to coarse dark 257-8 Siltstone + intercalated SS 267-2 " " dk, clayey 271 Shale, calc, coal flecks -- -- HLB -- 280 Siltstone dk, clayey 290 Claystone silty, calc, pellets. 303-6 Siltstone 307 Claystone 337 Siltstone sandy + clayey 347-6 Claystone mottled microspon+gray green 377 Siltstone thin beds fine SS (1/8 - 1/4) 396-6 Limestone dark, foss. (fonna) BC 396-8 Coal 2" 403-6 Silty claystone 412-6 Clayey siltstone 425-6 Sandy siltstone 432-6 Fine to med SS 447 Sandy+clayey, siltstone (plants) P 448-2 Coal 14" 451 Clayey siltstone + silty clay + 453-3 Fragmental clay ////////////// 465 Clayey siltstone calc, pellets 472 Fine to med SS 492 Intercalated SS + siltstone. 493-8 Clayey siltstone D 494-1 Coal 5" 30